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Geological and geophysical exploration campaigns have ascertained the coexistence of low to medium-temperature geothermal energy resources in the deepest regions of Italian sedimentary basins. As such, energy production based on the exploitation of available geothermal resources associated with disused deep oil and gas wells in Italian oilfields could represent a considerable source of renewable energy. This study used information available on Italian hydrocarbon wells and on-field temperatures to apply a simplified closed-loop coaxial Wellbore Heat Exchanger (WBHE) model to three different hydrocarbon wells located in different Italian oilfields (Villafortuna-Trecate, Val d’Agri field, Gela fields). From this study, the authors have highlighted the differences in the quantity of potentially extracted thermal energy from different analysed wells. Considering the maximum extracted working fluid temperature of 100 °C and imagining a cascading exploitation mode of the heat accumulated, for Villafortuna 1 WBHE was it possible to hypothesise a multi-variant and comprehensive use of the resource. This could be done using existing infrastructure, available technologies, and current knowledge.
Martina Gizzi; Glenda Taddia; Stefano Lo Russo. Reuse of Decommissioned Hydrocarbon Wells in Italian Oilfields by Means of a Closed-Loop Geothermal System. Applied Sciences 2021, 11, 2411 .
AMA StyleMartina Gizzi, Glenda Taddia, Stefano Lo Russo. Reuse of Decommissioned Hydrocarbon Wells in Italian Oilfields by Means of a Closed-Loop Geothermal System. Applied Sciences. 2021; 11 (5):2411.
Chicago/Turabian StyleMartina Gizzi; Glenda Taddia; Stefano Lo Russo. 2021. "Reuse of Decommissioned Hydrocarbon Wells in Italian Oilfields by Means of a Closed-Loop Geothermal System." Applied Sciences 11, no. 5: 2411.
Thermal perturbation produced in the subsurface by open-loop groundwater heat pump systems (GWHPs) must be predicted and constantly controlled, especially in the shallow aquifers of more densely urbanized areas, in order to guarantee plants’ long-term sustainable use and to avoid adverse effects on adjacent geothermal systems. Transient conditions in the flow dynamic can be successfully modelled by means of numerical modelling tools. However, for small plants in suitable hydrogeological systems, an alternative tool for predicting the thermally affected zone (TAZ) around the injection well can be found in analytical solutions for steady advective transport in a shallow aquifer. The validity of using steady analytical solutions to predict the TAZ development at the end of two different cooling seasons (2010 and 2016) was tested in the Politecnico di Torino GWHP system (NW Italy). When fixing the constant thermal difference (ΔT) between the injection and abstraction wells at 5°C, results revealed that a rather reliable assessment of the TAZ of Politecnico di Torino GWHPs, in Turin shallow aquifer, can be performed by plotting the cumulative distribution function of the injected discharge rate (Q) and setting 63% as a steady value.
Martina Gizzi; Glenda Taddia; Elena Cerino Abdin; Stefano Lo Russo. Thermally Affected Zone (TAZ) Assessment in Open-Loop Low-Enthalpy Groundwater Heat Pump Systems (GWHPs): Potential of Analytical Solutions. Geofluids 2020, 2020, 1 -13.
AMA StyleMartina Gizzi, Glenda Taddia, Elena Cerino Abdin, Stefano Lo Russo. Thermally Affected Zone (TAZ) Assessment in Open-Loop Low-Enthalpy Groundwater Heat Pump Systems (GWHPs): Potential of Analytical Solutions. Geofluids. 2020; 2020 ():1-13.
Chicago/Turabian StyleMartina Gizzi; Glenda Taddia; Elena Cerino Abdin; Stefano Lo Russo. 2020. "Thermally Affected Zone (TAZ) Assessment in Open-Loop Low-Enthalpy Groundwater Heat Pump Systems (GWHPs): Potential of Analytical Solutions." Geofluids 2020, no. : 1-13.
Mining activities can contribute to sustainable development, focusing on economic, environmental, and community aspects. To this purpose, it appears essential to investigate the spatial dimension of mining operations to have a clear picture of the full range of impacts in terms of both opportunities and constrains. The paper illustrates the construction of a geodatabase for supporting planning and management of mining activities in Piedmont Region (Northern Italy). In the geodatabase, all the quarries located in the area are represented at a regional scale, distinguishing by active and inactive sites that have been further divided according to the main categories of extracted materials, namely aggregates, industrial minerals, and ornamental stones. The article discusses how the regional mining mapping can offer an integrated and interdisciplinary representation of the territory under analysis, thus supporting the decision-making processes in the context of the activities related to the Strategic Environmental Assessment of the planning of mining operations.
Marta Carla Bottero; Iván Polo Pérez; Glenda Taddia; Stefano Lo Russo. A geodatabase for supporting planning and management of mining activities: the case of Piedmont Region. Environmental Earth Sciences 2020, 79, 83 .
AMA StyleMarta Carla Bottero, Iván Polo Pérez, Glenda Taddia, Stefano Lo Russo. A geodatabase for supporting planning and management of mining activities: the case of Piedmont Region. Environmental Earth Sciences. 2020; 79 (4):83.
Chicago/Turabian StyleMarta Carla Bottero; Iván Polo Pérez; Glenda Taddia; Stefano Lo Russo. 2020. "A geodatabase for supporting planning and management of mining activities: the case of Piedmont Region." Environmental Earth Sciences 79, no. 4: 83.
“La Maddalena” exploratory tunnel, located in Chiomonte (Italy Western Alps - Susa Valley), is one of the four exploratory adits, three in France, completed in 2010, and one in Italy, whose realization is related to Turin-Lyon high-speed rail project.The excavation involve the ‘‘Pennidic Domain’’, and more in details the tectonic contact between Piemontese Zone and Brianzonese. During the tunnel construction several monitoring data have been recorded in order to assess geological parameters important for the future Base Tunnel realization. In fact, one of the main task in the optimization of the final design of a Tunnel has been represented by the hydrogeological monitoring. This activity has been aimed to verify the correctness of the project hypothesis and especially to evaluate the inflow forecast in term of discharge rate and distribution, temperature and chemical facies ofgroundwater. The hydrogeological monitoring has proved extremely valuable not only in checking the reliability of the tunnel design forecast but also in underlining the importance of the realization of exploratory tunnels prior to the excavation of a main tunnel.
Stefano Lo Russo; Glenda Taddia; Elena Cerino Abdin; Maria Elena Parisi. “La Maddalena” exploratory adit - base tunnel of the Turin-Lyon high speed rail project: hydrogeological monitoring data analysis. Rendiconti Online della Società Geologica Italiana 2019, 47, 58 -63.
AMA StyleStefano Lo Russo, Glenda Taddia, Elena Cerino Abdin, Maria Elena Parisi. “La Maddalena” exploratory adit - base tunnel of the Turin-Lyon high speed rail project: hydrogeological monitoring data analysis. Rendiconti Online della Società Geologica Italiana. 2019; 47 ():58-63.
Chicago/Turabian StyleStefano Lo Russo; Glenda Taddia; Elena Cerino Abdin; Maria Elena Parisi. 2019. "“La Maddalena” exploratory adit - base tunnel of the Turin-Lyon high speed rail project: hydrogeological monitoring data analysis." Rendiconti Online della Società Geologica Italiana 47, no. : 58-63.
Thermal perturbation produced in the subsurface by open-loop groundwater heat pumps (GWHPs) represents a complex transport phenomenon that is affected by several factors, including intrinsic characteristics of the exploited aquifer, abstraction and reinjection well features, and the temporal dynamics of the accessed groundwater. Post-GWHP water may have become warmed or cooled before being reinjected into the aquifer, thereby creating a thermal plume, known as the thermal affected zone (TAZ), which can alter aquifer temperature. The TAZ is propagated mainly by advection, after which the plume tends to degrade via conductive heat transport and convection within moving water. Groundwater monitoring and multiparametric probes are used to check the dynamics of plume propagation and whether a system’s thermal plumes are generating unsuitable interference with wells, subsurface infrastructure, or land use. Analyses of time-series groundwater monitoring data can be used to monitor TAZ movement. In this paper, the thermal plume velocity was calculated by both an analytical solution and cross-correlation. Cross-correlation calculated between temperature measured in the reinjection well and control downstream piezometers can reveal plume dynamics and demonstrate the importance of advective transport in aquifer heat transfer.
Stefano Lo Russo; Glenda Taddia; Paolo Dabove; Elena Cerino Abdin; Ambrogio Maria Manzino. Effectiveness of time-series analysis for thermal plume propagation assessment in an open-loop groundwater heat pump plant. Environmental Earth Sciences 2018, 77, 647 .
AMA StyleStefano Lo Russo, Glenda Taddia, Paolo Dabove, Elena Cerino Abdin, Ambrogio Maria Manzino. Effectiveness of time-series analysis for thermal plume propagation assessment in an open-loop groundwater heat pump plant. Environmental Earth Sciences. 2018; 77 (18):647.
Chicago/Turabian StyleStefano Lo Russo; Glenda Taddia; Paolo Dabove; Elena Cerino Abdin; Ambrogio Maria Manzino. 2018. "Effectiveness of time-series analysis for thermal plume propagation assessment in an open-loop groundwater heat pump plant." Environmental Earth Sciences 77, no. 18: 647.
Thermal perturbation in the subsurface produced in an open-loop groundwater heat pump (GWHP) plant is a complex transport phenomenon affected by several factors, including the exploited aquifer’s hydrogeological and thermal characteristics, well construction features, and the temporal dynamics of the plant’s groundwater abstraction and reinjection system. Hydraulic conductivity has a major influence on heat transport because plume propagation, which occurs primarily through advection, tends to degrade following conductive heat transport and convection within moving water. Hydraulic conductivity is, in turn, influenced by water reinjection because the dynamic viscosity of groundwater varies with temperature. This paper reports on a computational analysis conducted using FEFLOW software to quantify how the thermal-affected zone (TAZ) is influenced by the variation in dynamic viscosity due to reinjected groundwater in a well-doublet scheme. The modeling results demonstrate non-negligible groundwater dynamic-viscosity variation that affects thermal plume propagation in the aquifer. This influence on TAZ calculation was enhanced for aquifers with high intrinsic permeability and/or substantial temperature differences between abstracted and post-heat-pump-reinjected groundwater. Les perturbations thermiques en sub-surface, dues à un dispositif géothermique à circuit ouvert de type pompe à chaleur sur nappe (PACN), constituent un phénomène de transfert complexe, influencé par plusieurs facteurs, dont les caractéristiques hydrogéologiques et thermiques de l’aquifère exploité, les caractéristiques techniques des forages, et les dynamiques des stations de pompage d’eau souterraine et du système de réinjection. La conductivité hydraulique a une influence majeure sur le transfert de chaleur car le panache de propagation, qui se produit principalement par advection, tend à réduire le transfert de chaleur par diffusion et par convection au sein de l’eau mobile. La conductivité hydraulique est., en retour, influencée par la réinjection d’eau, du fait que la viscosité dynamique de l’eau souterraine varie avec la température. Cet article présente une analyze numérique menée à l’aide du logiciel FEFLOW pour quantifier dans quelle mesure la zone d’influence thermique (ZIT) est. influencée par la variation de la viscosité dynamique due à la réinjection d’eau souterraine dans le cadre d’un doublet géothermique. Les résultats de la modélisation démontrent une variation significative de la viscosité dynamique qui a une incidence sur la propagation du panache thermique au sein de l’aquifère. Cette influence sur le calcul de la ZIT est. accentuée pour les aquifères dont la perméabilité intrinsèque est. élevée et/ou dans le cas de différences de températures considérables entre l’eau souterraine pompée, et celle qui est. réinjectée. La perturbación térmica en el subsuelo producida en una planta de bomba de calor de agua subterránea (GWHP) es un fenómeno de transporte complejo afectado por varios factores, incluyendo las características hidrogeológicas y térmicas del acuífero explotado, características de construcción del pozo y la dinámica temporal de la extracción de agua subterránea de la planta y del sistema de reinyección. La conductividad hidráulica tiene una gran influencia en el transporte de calor debido a que la propagación de la pluma, que ocurre principalmente a través de la advección, tiende a degradarse después del transporte de calor conductivo y la convección dentro del agua en movimiento. La conductividad hidráulica, a su vez, está influenciada por la reinyección de agua porque la viscosidad dinámica del agua subterránea varía con la temperatura. Este artículo informa sobre un análisis computacional realizado con el software FEFLOW para cuantificar cómo la zona afectada por el calor (TAZ) está influenciada por la variación en la viscosidad dinámica debida al agua subterránea reinyectada en un esquema de dos pozos. Los resultados del modelado demuestran una variación dinámica de la viscosidad del agua subterránea no despreciable que afecta la propagación de la pluma térmica en el acuífero. Esta influencia en el cálculo de TAZ se mejoró para los acuíferos con alta permeabilidad intrínseca y/o diferencias de temperatura sustanciales entre el agua subterránea extraída y la reinyectada por la bomba de calor. 开放回路地下水热泵场产生的热扰动是一个复杂的传输现象,受几个因素的影响,包括所开发的含水层的水文地质和热特征、建井特点以及热泵场地下水抽取系统和回灌系统的瞬时动力学。水力传导率对热传输有主要的影响,因为主要通过水平对流产生的羽状传播在移动的水内随着传导性热传输和水平对流逐步减弱。反过来,水力传导率受到水回灌的影响,因为地下水的动态随着温度的变化而变化。本文论述了采用FEFLOW软件进行了计算分析,量化了由于井双重计划中回灌的地下水热影响带是怎样受到动态粘度变化的影响。模拟结果显示,影响含水层热羽状传播的地下水动态粘度变化不可忽视。对具有较高固有透水性的含水层及/或抽取的地下水和热泵回灌后的地下水之间有重大差别的含水层来说,这种对热影响带计算结果的影响进一步增强。 Perturbações térmicas na subsuperfície produzidas em uma usina de bombeamento de água subterrânea por calor (UBASC) de ciclo aberto formam um fenômeno de transporte complexo, afetado por vários fatores, incluindo as características hidrogeológicas e térmicas do aquífero sendo explorado, características de construção do poço e a dinâmica temporal da extração e injeção do sistema de bombeamento. A condutividade hidráulica tem uma grande importância no transporte de calor por causa da pluma de...
Stefano Lo Russo; Glenda Taddia; Elena Cerino Abdin. Modeling the effects of the variability of temperature-related dynamic viscosity on the thermal-affected zone of groundwater heat-pump systems. Hydrogeology Journal 2018, 26, 1239 -1247.
AMA StyleStefano Lo Russo, Glenda Taddia, Elena Cerino Abdin. Modeling the effects of the variability of temperature-related dynamic viscosity on the thermal-affected zone of groundwater heat-pump systems. Hydrogeology Journal. 2018; 26 (4):1239-1247.
Chicago/Turabian StyleStefano Lo Russo; Glenda Taddia; Elena Cerino Abdin. 2018. "Modeling the effects of the variability of temperature-related dynamic viscosity on the thermal-affected zone of groundwater heat-pump systems." Hydrogeology Journal 26, no. 4: 1239-1247.
This paper deals with the cross-border section of the Lyon-Turin Line, i.e. the 57.5 km long Mont Cenis Base Tunnel between Saint Jean de Maurienne in France and the Susa valley in Italy. Works at Saint Martin La Porte started in 2015 including the 9 km TBM excavation along the south tube of the base tunnel between the access adits of Saint Martin La Porte and La Praz. In order to assemble the TBM, a large underground cavern has been excavated at the end of the Saint Martin La Porte access adit. The size of this cavern, with a length of approximately 45 m, a span of 23 m and a height of 22.2 m, and the geological and geomechanical conditions in the Carboniferous Formation at a depth of about 600 m made this work a challenge. The excavation and support methods adopted are described, together with the rock mass conditions and the observed ground behaviour. The monitoring data obtained during excavation are briefly presented, including the works schedule.
Maria Elena Parisi; Lorenzo Brino; Piergiuseppe Gilli; Enrico Fornari; Giorgio Martinotti; Stefano Lo Russo. La Maddalena exploratory tunnel. Geomechanics and Tunnelling 2017, 10, 265 -274.
AMA StyleMaria Elena Parisi, Lorenzo Brino, Piergiuseppe Gilli, Enrico Fornari, Giorgio Martinotti, Stefano Lo Russo. La Maddalena exploratory tunnel. Geomechanics and Tunnelling. 2017; 10 (3):265-274.
Chicago/Turabian StyleMaria Elena Parisi; Lorenzo Brino; Piergiuseppe Gilli; Enrico Fornari; Giorgio Martinotti; Stefano Lo Russo. 2017. "La Maddalena exploratory tunnel." Geomechanics and Tunnelling 10, no. 3: 265-274.
Open-loop groundwater geothermal heat pumps (GWHP) represent an interesting technology that is expected to contribute significantly to the reduction of primary energy use for buildings heating and cooling needs especially in urban context. In the GWHP's design phases the geological and hydrogeological parameters must be accurately determined in order to maximize efficiency and minimize installation costs. Physical properties of the aquifer such as the porosity and the thermal parameters of the aquifer framework have been usually obtained through field and laboratory geotechnical testing. Hydrogeological and hydraulic parameters of the exploited aquifer such as hydraulic conductivity and the storativity are usually obtained through pumping test. As reported in literature, the prevailing component of the heat transfer in the aquifer induced by the water re-injection is related to the advection and therefore the determination of the real field groundwater velocity in transient and steady conditions is fundamental in the modelling of the thermal plume especially in the GWHP plant design phases. To this aim the pumping tests appear to be among the most useful field hydrogeological investigations to be performed in most cases. Such tests can also provide suitable information related to the aquifer productivity (specific discharge rate) and therefore can permit to assess if the GWHP plant requirement can be satisfied in terms of groundwater sustainable withdrawals. A real field pilot plant aimed to supply energy needs to the Architecture Faculty building of the Politecnico di Torino (NW Italy) is presented and discussed
Glenda Taddia; Elena Cerino Abdin; Stefano Lo Russo. Determination of aquifer hydrodynamic parameters: a key tool for the design of an Open-loop Groundwater Heat Pump System. Rendiconti Online della Società Geologica Italiana 2016, 41, 288 -291.
AMA StyleGlenda Taddia, Elena Cerino Abdin, Stefano Lo Russo. Determination of aquifer hydrodynamic parameters: a key tool for the design of an Open-loop Groundwater Heat Pump System. Rendiconti Online della Società Geologica Italiana. 2016; 41 ():288-291.
Chicago/Turabian StyleGlenda Taddia; Elena Cerino Abdin; Stefano Lo Russo. 2016. "Determination of aquifer hydrodynamic parameters: a key tool for the design of an Open-loop Groundwater Heat Pump System." Rendiconti Online della Società Geologica Italiana 41, no. : 288-291.
The use of groundwater abstracted via open loop systems is increasingly being considered as a means to provide heating and cooling for buildings in urban contest. Physical processes affecting heat transport within an aquifer include advection (or convection) and hydrodynamic thermodispersion (diffusion and mechanical dispersion). The advective components tend to dominate the heat transfer process within the aquifer and the diffusion can be considered negligible. This study illustrates the experimental results derived from the groundwater monitoring in the surrounding area of an injection well connected to an open-loop GWHP plant which has been installed in the "Politecnico di Torino" (NW Italy) for cooling some of the university buildings. Groundwater pumping and injection interfere only with the upper unconfined aquifer. The data deriving from multiparameter probes installed inside the pumping well (P2), the injection well (P4) and a downgradient piezometer (S2), refers to the summer 2015. Monitoring of hydraulic levels, electrical conductivity EC and temperature T in P2, P4 and S2. The experimental results demonstrated the propagation of the subsurface thermal plume during the injection of warm water and the progressive disappearance of the temperature anomaly with time. Another important aspect that we will investigate is the unusual trend of EC values during the year and the possibility cross-correlation between EC values and T values. In particular we intend to continue this analysis to verify the reason of this data anomaly
Glenda Taddia; Elena Cerino Abdin; Stefano Lo Russo. Groundwater Heat Pump System: behavior and relationships between the groundwater temperature and electrical conductivity. Rendiconti Online della Società Geologica Italiana 2016, 41, 292 -295.
AMA StyleGlenda Taddia, Elena Cerino Abdin, Stefano Lo Russo. Groundwater Heat Pump System: behavior and relationships between the groundwater temperature and electrical conductivity. Rendiconti Online della Società Geologica Italiana. 2016; 41 ():292-295.
Chicago/Turabian StyleGlenda Taddia; Elena Cerino Abdin; Stefano Lo Russo. 2016. "Groundwater Heat Pump System: behavior and relationships between the groundwater temperature and electrical conductivity." Rendiconti Online della Società Geologica Italiana 41, no. : 292-295.
We present a methodology to use a UAV (unmanned aerial vehicle) to perform photogrammetric surveys and detailed geological mapping in mountain areas. This work is specially related to the presented case study with the aim to realize geomorphological maps from UAVs, since they can house different types of sensors and acquire data more rapidly and cheaply than traditional geological surveys directly obtained with field observations. This work explains how UAVs can obtain digital terrain models, orthophotos and 3D models in order to create slope and aspect maps for geological purposes. By integrating data from UAVs with geological surveys made on the field, geological maps can be produced where many of the geological elements are presented. This paper presents the integration of geomatics and geological techniques. Starting from UAV slope map and orthophotos, a new geological map was created in a faster and more detailed way compared to traditional geological survey on the ground. The application of this method regards a sector of the Western Alps (NW Italy), formed by glaciers and deep-seated gravitational slope deformations.
Marco Piras; Glenda Taddia; M. G. Forno; M. Gattiglio; Irene Aicardi; Paolo Dabove; Stefano Lo Russo; Andrea Maria Lingua. Detailed geological mapping in mountain areas using an unmanned aerial vehicle: application to the Rodoretto Valley, NW Italian Alps. Geomatics, Natural Hazards and Risk 2016, 8, 137 -149.
AMA StyleMarco Piras, Glenda Taddia, M. G. Forno, M. Gattiglio, Irene Aicardi, Paolo Dabove, Stefano Lo Russo, Andrea Maria Lingua. Detailed geological mapping in mountain areas using an unmanned aerial vehicle: application to the Rodoretto Valley, NW Italian Alps. Geomatics, Natural Hazards and Risk. 2016; 8 (1):137-149.
Chicago/Turabian StyleMarco Piras; Glenda Taddia; M. G. Forno; M. Gattiglio; Irene Aicardi; Paolo Dabove; Stefano Lo Russo; Andrea Maria Lingua. 2016. "Detailed geological mapping in mountain areas using an unmanned aerial vehicle: application to the Rodoretto Valley, NW Italian Alps." Geomatics, Natural Hazards and Risk 8, no. 1: 137-149.
This paper presents an exergetic analysis of the operating conditions of a shallow horizontal ground source heat pump. The analysis is conducted through theoretical evaluation of the exergy potential and the evaluation of the main sources of unavoidable irreversibilities. This approach can be used to assess the main causes of performance reduction and degradation, as well as to select the optimal installation (depth, position) or to modify the operating parameters.The analysis of a real installation in then considered. This is a horizontal ground heat exchanger, constituted of a network of pipes installed 1 m below the surface, covering an area of about 210 m2. A comparison of the current installation with a deeper installation, 2 m below the surface, shows that the exergy output can be increased of more than 60%. This improvement can be easily compared with the increase in the installation costs in order to evaluate the optimal depth.
Vittorio Verda; Sara Cosentino; Stefano Lo Russo; Adriano Sciacovelli. Second law analysis of horizontal geothermal heat pump systems. Energy and Buildings 2016, 124, 236 -240.
AMA StyleVittorio Verda, Sara Cosentino, Stefano Lo Russo, Adriano Sciacovelli. Second law analysis of horizontal geothermal heat pump systems. Energy and Buildings. 2016; 124 ():236-240.
Chicago/Turabian StyleVittorio Verda; Sara Cosentino; Stefano Lo Russo; Adriano Sciacovelli. 2016. "Second law analysis of horizontal geothermal heat pump systems." Energy and Buildings 124, no. : 236-240.
Open-loop groundwater heat pump (GWHP) technology has experienced increased implementation throughout several parts of the world. Water is discharged into an aquifer for cooling and heating buildings, which has the potential to cause, even in the short term, significant environmental impacts associated with groundwater thermal interference, particularly in shallow aquifers. The objectives of this study were to investigate alternatives to traditional drilled wells for re-injection and dispersion of water in aquifers downstream of GWHP systems. In particular, we evaluated the potential for reverse use of commercial gabion draining in various types of ground configuration, geometry, and interconnection with prefabricated vertical drain systems. Results showed the use of gabiondrains instead of re-injection wells tended to develop a thermal affected zone (TAZ), which primarily affected the surficial portion of the aquifer. TAZ development served an important role in decreasing thermal feedback risks, and reduced the relative distance between abstraction and re-injection in well-doublet schemes, in cases where the abstraction occurred in deeper portions of the aquifer.
Stefano Lo Russo; Glenda Taddia; Elena Cerino Abdin; Vittorio Verda. Effects of different re-injection systems on the thermal affected zone (TAZ) modelling for open-loop groundwater heat pumps (GWHPs). Environmental Earth Sciences 2015, 75, 1 -14.
AMA StyleStefano Lo Russo, Glenda Taddia, Elena Cerino Abdin, Vittorio Verda. Effects of different re-injection systems on the thermal affected zone (TAZ) modelling for open-loop groundwater heat pumps (GWHPs). Environmental Earth Sciences. 2015; 75 (1):1-14.
Chicago/Turabian StyleStefano Lo Russo; Glenda Taddia; Elena Cerino Abdin; Vittorio Verda. 2015. "Effects of different re-injection systems on the thermal affected zone (TAZ) modelling for open-loop groundwater heat pumps (GWHPs)." Environmental Earth Sciences 75, no. 1: 1-14.
It is quite unusual to consider the exploitation of geothermal resources during at the tunnel design stage. This paper is intended to analyse the nature and the potential of the geothermal resources. These are essentially the hot or cold water inflow and the temperature of the surrounding ground itself. A methodological approach is proposed to face the problem, determine relevant information and estimate the attractiveness of the application. The approach is then applied to the case study of the metro line Dudullu-Bostanci in Istanbul, currently under design, by identifying a possible application of heat exchangers integrated into the tunnel lining and evaluating preliminarily the environmental and economical aspects.
Fabio Furno; Marco Barla; Antonio Dematteis; Stefano Lo Russo. Methodological approach for a sustainable management of water inflow and geothermal energy in tunnels. Acque Sotterranee - Italian Journal of Groundwater 2015, 4, 1 .
AMA StyleFabio Furno, Marco Barla, Antonio Dematteis, Stefano Lo Russo. Methodological approach for a sustainable management of water inflow and geothermal energy in tunnels. Acque Sotterranee - Italian Journal of Groundwater. 2015; 4 (3):1.
Chicago/Turabian StyleFabio Furno; Marco Barla; Antonio Dematteis; Stefano Lo Russo. 2015. "Methodological approach for a sustainable management of water inflow and geothermal energy in tunnels." Acque Sotterranee - Italian Journal of Groundwater 4, no. 3: 1.
Open-loop groundwater heat pump (GWHP) technology has experienced increased implementation throughout several parts of the world. Water is discharged into an aquifer for cooling and heating buildings, which has the potential to cause, even in the short term, significant environmental impacts associated with groundwater thermal interference, particularly in shallow aquifers. The objective of this study was to investigate alternatives to traditional drilled wells for re-injection and dispersion of water in aquifers downstream of GWHP systems. In particular, we evaluated the potential for reverse use of commercial gabion draining in various types of ground configuration, geometry, and interconnection with prefabricated vertical drain systems. Results showed the use of gabiondrains instead of re-injection wells tended to develop a Thermal Affected Zone (TAZ), which primarily affected the surficial portion of the aquifer. TAZ development served an important role in decreasing thermal feedback risks, and reduced the relative distance between abstraction and re-injection in well-doublet schemes, in cases where the abstraction occurred in deeper portions of the aquife
Stefano Lo Russo; Glenda Taddia; Elena Cerino Abdin. Comparison between vertical re-injection wells and commercial gabiondrains as warm water dispersers in an Open-loop Groundwater Heat Pump plant. Rendiconti Online della Società Geologica Italiana 2015, 35, 184 -187.
AMA StyleStefano Lo Russo, Glenda Taddia, Elena Cerino Abdin. Comparison between vertical re-injection wells and commercial gabiondrains as warm water dispersers in an Open-loop Groundwater Heat Pump plant. Rendiconti Online della Società Geologica Italiana. 2015; 35 ():184-187.
Chicago/Turabian StyleStefano Lo Russo; Glenda Taddia; Elena Cerino Abdin. 2015. "Comparison between vertical re-injection wells and commercial gabiondrains as warm water dispersers in an Open-loop Groundwater Heat Pump plant." Rendiconti Online della Società Geologica Italiana 35, no. : 184-187.
The study focuses on the potentiality of the low-enthalpy open-loop GroundWater Heat Pumps (GWHP) diffusion in the alluvial plain aquifers of the Piemonte region (NW Italy). The use of low-enthalpy open-loop GroundWater Heat Pumps (GWHP) could in fact contribute to the reduction of regional greenhouse gas emissions. GWHP could be used only with shallow groundwater, to avoid potential alteration of the deeper aquifer so the hydrogeological plain setting and the spatial distribution and temporal variability of the shallow groundwater temperature have been analyzed. Low annual and seasonal variability of the shallow groundwater temperature confirmed the potentiality of the low-enthalpy open-loop GroundWater Heat Pumps (GWHP) diffusion. The distribution of mean groundwater temperatures have been considered and differences among different areas were slight according with the modest variations in the general climatic condition in different areas. Higher temperature values recorded were typical of summer months and on the opposite lower values were measured in January and February. Besides air-temperature influence (seasonal variability) seemed strictly connected to the depth to groundwater in the measure point and it was negligible when the value was over 9.5 m. For the application of the open-loop systems, extensive examinations of the hydrogeological local conditions should be conducted at site scale and groundwater heat transport modeling should be developed. Geographical distribution analysis showed that technical and economic efforts should be made by public authority to implement the monitoring network and reduce the lack of information about groundwater temperature at a regional scal
Stefano Lo Russo; Glenda Taddia; Elena Cerino Abdin. Potential of shallow aquifers in the plain sector of Piemonte region (NW Italy) for groundwater heat pumps diffusion. Rendiconti Online della Società Geologica Italiana 2015, 35, 180 -183.
AMA StyleStefano Lo Russo, Glenda Taddia, Elena Cerino Abdin. Potential of shallow aquifers in the plain sector of Piemonte region (NW Italy) for groundwater heat pumps diffusion. Rendiconti Online della Società Geologica Italiana. 2015; 35 ():180-183.
Chicago/Turabian StyleStefano Lo Russo; Glenda Taddia; Elena Cerino Abdin. 2015. "Potential of shallow aquifers in the plain sector of Piemonte region (NW Italy) for groundwater heat pumps diffusion." Rendiconti Online della Società Geologica Italiana 35, no. : 180-183.
Landslide susceptibility mapping is a fundamental tool for disaster management and planning development activities in mountainous areas. The landslide susceptibility maps produced in the present work represent a step forward in the management of landslide hazard in the Germanasca valley (Western Alps, NW Italy). Landslide susceptibility analysis was conducted using a Geographic Information System and a specific ArcGIS® toolbox called ModelBuilder. In the specific case eight predisposing factors were considered: surface and bedrock lithology, distance from drainage, altitude, planform curvature, profile curvature, slope, aspect and land use. A dedicated MATLAB routine has been developed for calculating the correlation of landslide to each factor using the logistic regression method.
Glenda Taddia; Loretta Gnavi; Marco Piras; Maria Gabriella Forno; Andrea Lingua; Stefano Lo Russo. Landslide Susceptibility Zoning Using GIS Tools: An Application in the Germanasca Valley (NW Italy). Engineering Geology for Society and Territory - Volume 2 2015, 177 -181.
AMA StyleGlenda Taddia, Loretta Gnavi, Marco Piras, Maria Gabriella Forno, Andrea Lingua, Stefano Lo Russo. Landslide Susceptibility Zoning Using GIS Tools: An Application in the Germanasca Valley (NW Italy). Engineering Geology for Society and Territory - Volume 2. 2015; ():177-181.
Chicago/Turabian StyleGlenda Taddia; Loretta Gnavi; Marco Piras; Maria Gabriella Forno; Andrea Lingua; Stefano Lo Russo. 2015. "Landslide Susceptibility Zoning Using GIS Tools: An Application in the Germanasca Valley (NW Italy)." Engineering Geology for Society and Territory - Volume 2 , no. : 177-181.
Aquifers in mountain areas are a strategic resource for the people who live there. To optimise future management, it is vital to understand hydrogeological systems from both geological and hydrogeological perspectives. Historically, methods such as hydrograph and time series analyses have been applied to characterise large karst systems. The aim of this paper was to apply these methods to small mountain springs supplied by porous and shallow aquifers. Specifically were made: (1) a comparison to understand which method better fits the depletion curve of the aquifers and (2) an application of time series analysis both by auto-correlation (analysis of individual series) and by cross-correlation methods (analysis of interrelationships between time series) on all the three parameters monitored from the probe (discharge Q, temperature T, electrical conductivity EC). These techniques were applied on four mountain springs located in the Italy North-Western Alps in the Aosta Valley Region. The results suggested that spring hydrograph and time series analyses on Q, T and EC parameters are useful tools for understanding the hydrodynamic behaviour of porous and shallow aquifers and how to make a proper management of the resource.
Stefano Lo Russo; Gianpiero Amanzio; Raffaella Ghione; Marina De Maio. Recession hydrographs and time series analysis of springs monitoring data: application on porous and shallow aquifers in mountain areas (Aosta Valley). Environmental Earth Sciences 2014, 73, 7415 -7434.
AMA StyleStefano Lo Russo, Gianpiero Amanzio, Raffaella Ghione, Marina De Maio. Recession hydrographs and time series analysis of springs monitoring data: application on porous and shallow aquifers in mountain areas (Aosta Valley). Environmental Earth Sciences. 2014; 73 (11):7415-7434.
Chicago/Turabian StyleStefano Lo Russo; Gianpiero Amanzio; Raffaella Ghione; Marina De Maio. 2014. "Recession hydrographs and time series analysis of springs monitoring data: application on porous and shallow aquifers in mountain areas (Aosta Valley)." Environmental Earth Sciences 73, no. 11: 7415-7434.
A fundamental aspect in groundwater heat pump (GWHP) plant design is the correct evaluation of the Thermally Affected Zone (TAZ) that develops around the injection well. This is particularly important to avoid interference with previously existing groundwater uses (wells) and underground structures. Temperature anomalies are detected through numerical methods. Computational fluid dynamic (CFD) models are widely used in this field because they offer the opportunity to calculate the time evolution of the thermal plume produced by a heat pump. The drawback of these models is the computational time. This paper aims to propose the use of neural networks to determine the time evolution of the groundwater temperature downstream of an installation as a function of the possible utilization profiles of the heat pump. The main advantage of neural network modeling is the possibility of evaluating a large number of scenarios in a very short time, which is very useful for the preliminary analysis of future multiple installations and optimal planning of urban energy systems. The neural network is trained using the results from a CFD model (FEFLOW) under several operating conditions. The final results appeared to be reliable and the temperature anomalies around the injection well appeared to be predicted well.
Glenda Taddia; Stefano Lo Russo; Vittorio Verda. Comparison Between Neural Network and Finite Element Models for the Prediction of Groundwater Temperatures in Heat Pump (GWHP) Systems. Engineering Geology for Society and Territory - Volume 6 2014, 255 -258.
AMA StyleGlenda Taddia, Stefano Lo Russo, Vittorio Verda. Comparison Between Neural Network and Finite Element Models for the Prediction of Groundwater Temperatures in Heat Pump (GWHP) Systems. Engineering Geology for Society and Territory - Volume 6. 2014; ():255-258.
Chicago/Turabian StyleGlenda Taddia; Stefano Lo Russo; Vittorio Verda. 2014. "Comparison Between Neural Network and Finite Element Models for the Prediction of Groundwater Temperatures in Heat Pump (GWHP) Systems." Engineering Geology for Society and Territory - Volume 6 , no. : 255-258.
Drinking water supply and waste water networks and treatment systems provide essential services to the community. These infrastructures are vulnerable and subject to a wide range of risks; damage and operation interruptions that require immediate restoration and management of the emergency, may occur. The vulnerability of water supply systems is nowadays the focus of attention of everyone responsible for their security and good performance. Direct effects caused by disasters involve the physical damage to the infrastructure while indirect damage is linked to the additional expenses that the water companies need to incur in order to respond to the emergency, as well as the loss of revenue due to the interruption of their services. The analysis and risk assessment for the Integrated Water Services relating to natural hazards and/or human origin threats is based upon the equation that correlates the risk to the probability of occurrence of an adverse event, the vulnerability and the consequences. The paper presents an overview of the general framework and the risk tools useful for the risk management for Integrated Water Services.
Loretta Gnavi; Glenda Taddia; Stefano Lo Russo. Assessment and Risk Management for Integrated Water Services. Engineering Geology for Society and Territory - Volume 6 2014, 653 -656.
AMA StyleLoretta Gnavi, Glenda Taddia, Stefano Lo Russo. Assessment and Risk Management for Integrated Water Services. Engineering Geology for Society and Territory - Volume 6. 2014; ():653-656.
Chicago/Turabian StyleLoretta Gnavi; Glenda Taddia; Stefano Lo Russo. 2014. "Assessment and Risk Management for Integrated Water Services." Engineering Geology for Society and Territory - Volume 6 , no. : 653-656.
A fundamental aspect in Groundwater Heat Pump (GWHP) plant design is the correct evaluation of theThermal Affected Zone (TAZ) that develops around the injection well, which is important to avoid interference with existing groundwater applications and underground infrastructure. Numerical methods facilitate the identification of temperature anomalies, and software tools such as the FEFLOW program used in this study assist in these determinations. The actual flow rate and injection temperature are highly time-variable and follow changes in building energy requirements. In order to accurately predict the TAZ, it is necessary to consider this time variability. We calculated the TAZ using hourly discharge flow and temperature data, then recalculated the TAZ using average daily, monthly, and seasonal energetic equivalents. The four simulation results were compared with groundwater temperature data measured using a downgradient piezometer in order to assess the reliability of the simulations. The quality of the simulation was satisfactory when hourly, daily, or monthly flow rate and injection temperature data were used, whereas the seasonal averages were not suitable for reliably assessing TAZ developmen
Stefano Lo Russo; Loretta Gnavi; Emanuele Roccia; Glenda Taddia; Vittorio Verda. Groundwater Heat Pump (GWHP) system modeling and Thermal Affected Zone (TAZ) prediction reliability: Influence of temporal variations in flow discharge and injection temperature. Geothermics 2014, 51, 103 -112.
AMA StyleStefano Lo Russo, Loretta Gnavi, Emanuele Roccia, Glenda Taddia, Vittorio Verda. Groundwater Heat Pump (GWHP) system modeling and Thermal Affected Zone (TAZ) prediction reliability: Influence of temporal variations in flow discharge and injection temperature. Geothermics. 2014; 51 ():103-112.
Chicago/Turabian StyleStefano Lo Russo; Loretta Gnavi; Emanuele Roccia; Glenda Taddia; Vittorio Verda. 2014. "Groundwater Heat Pump (GWHP) system modeling and Thermal Affected Zone (TAZ) prediction reliability: Influence of temporal variations in flow discharge and injection temperature." Geothermics 51, no. : 103-112.