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Anaerobic Digestion (AD) is a well-established process that is becoming increasingly popular, especially as a technology for organic waste treatment; the process produces biogas, which can be upgraded to biomethane, which can be used in the transport sector or injected into the natural gas grid. Considering the sensitivity of Anaerobic Digestion to several process parameters, mathematical modeling and numerical simulations can be useful to improve both design and control of the process. Therefore, several different modeling approaches were presented in the literature, aiming at providing suitable tools for the design and simulation of these systems. The purpose of this study is to analyze the recent advancements in the biomethane production from different points of view. Special attention is paid to the integration of this technology with additional renewable energy sources, such as solar, geothermal and wind, aimed at achieving a fully renewable biomethane production. In this case, auxiliary heat may be provided by solar thermal or geothermal energy, while wind or photovoltaic plants can provide auxiliary electricity. Recent advancements in plants design, biomethane production and mathematical modeling are shown in the paper, and the main challenges that these fields must face with are discussed. Considering the increasing interest of industries, public policy makers and researchers in this field, the efficiency and profitability such hybrid renewable solutions for biomethane production are expected to significantly improve in the next future, provided that suitable subsidies and funding policies are implemented to support their development.
Francesco Calise; Francesco Cappiello; Luca Cimmino; Massimo D’Accadia; Maria Vicidomini. A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies. Energies 2021, 14, 4895 .
AMA StyleFrancesco Calise, Francesco Cappiello, Luca Cimmino, Massimo D’Accadia, Maria Vicidomini. A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies. Energies. 2021; 14 (16):4895.
Chicago/Turabian StyleFrancesco Calise; Francesco Cappiello; Luca Cimmino; Massimo D’Accadia; Maria Vicidomini. 2021. "A Review of the State of the Art of Biomethane Production: Recent Advancements and Integration of Renewable Energies." Energies 14, no. 16: 4895.
This work presents a dynamic analysis of an anaerobic digestion plant, in which concentrating photovoltaic/thermal collectors are used to match a part of both heating and power demand of the process. The system is supplied by the organic fraction of municipal solid waste. The system also includes a thermal storage tank and an auxiliary heating system. An up-grade section is also included, to produce biomethane, suitable for injection into the natural gas pipeline network. For such hybrid solar-biomass system, a comprehensive simulation model was developed in MATLAB®, calculating the time-dependent production of biomethane as a function of the operating temperature within the digester. The model, based on differential equations and thermal balances, accounts for both thermal and biological phenomena occurring within the process, taking into consideration the geometrical and structural characteristics of the system. The consistent Anaerobic Digestion Model 1 is used to model the biological process, evaluating the biogas production as a function of a series of operating variables: the digester operating temperature, mass flowrate and temperature of the hot water entering the digester, ambient temperature, mass flowrate and composition of the organic waste in input. The model also calculates the electric consumption of the upgrading process, used to convert the biogas into biomethane. Such model was integrated into the simulation platform of the overall plant, developed in TRNSYS, evaluating the energy, environmental and economic performance of the entire system. A case study is presented, showing the dynamic performance of the system under evaluation: for such case, a primary energy saving of 24% was found, with respect to a conventional digester; around 20% of the overall thermal energy demand is met by solar energy; finally, a promising payback time of about 3 years was estimated.
Francesco Calise; Francesco Liberato Cappiello; Massimo Dentice D’Accadia; Maria Vicidomini. Concentrating photovoltaic/thermal collectors coupled with an anaerobic digestion process: Dynamic simulation and energy and economic analysis. Journal of Cleaner Production 2021, 311, 127363 .
AMA StyleFrancesco Calise, Francesco Liberato Cappiello, Massimo Dentice D’Accadia, Maria Vicidomini. Concentrating photovoltaic/thermal collectors coupled with an anaerobic digestion process: Dynamic simulation and energy and economic analysis. Journal of Cleaner Production. 2021; 311 ():127363.
Chicago/Turabian StyleFrancesco Calise; Francesco Liberato Cappiello; Massimo Dentice D’Accadia; Maria Vicidomini. 2021. "Concentrating photovoltaic/thermal collectors coupled with an anaerobic digestion process: Dynamic simulation and energy and economic analysis." Journal of Cleaner Production 311, no. : 127363.
This work presents a novel renewable trigeneration plant powered by solar, geothermal and biomass energy, producing simultaneously electricity, heat and cool. The developed system includes a 193 m2 photovoltaic field, a 159 kWh lithium-ion battery, a 30 kWe organic Rankine cycle, a 350 kWth biomass auxiliary heater, a geothermal well at 96 °C and a 80 kW single stage H2O/LiBr absorption chiller. The Organic Rankine Cycle is mainly supplied by the geothermal well, producing electricity. An additional amount of electricity is produced by the photovoltaic panels. A detailed dynamic simulation model was developed in TRNSYS environment in order to calculate both energy and economic performance of the plant. The model includes algorithms validated versus literature and experimental data. The model of the renewable trigeneration plant is used for a suitable case study, a residential building in the Campi Flegrei (Naples, South Italy) area, a well-known location for its geothermal sources and good solar availability. The proposed plant exhibits promising energy performance achieving a primary energy saving of 139%, mainly due to the obtained excess energy. From the economic point of view, the proposed plant gets a limited profitability, showing a payback period of about 19 years, mainly due to the high capital cost of the employed technologies. A thermo-economic optimization is also implemented, considering photovoltaic field and battery capacities as independent variables. The results of the optimization suggest increasing the area of the photovoltaic field and to limit the capacity of electric energy storage system, due to the high specific capital cost of the lithium-ion battery. Finally, a multi-objective optimization is also carried out, aiming at calculating the set of the optimal design variables of the proposed trigeneration plant.
Francesco Calise; Francesco L. Cappiello; Massimo Dentice D'Accadia; Maria Vicidomini. Thermo-economic optimization of a novel hybrid renewable trigeneration plant. Renewable Energy 2021, 175, 532 -549.
AMA StyleFrancesco Calise, Francesco L. Cappiello, Massimo Dentice D'Accadia, Maria Vicidomini. Thermo-economic optimization of a novel hybrid renewable trigeneration plant. Renewable Energy. 2021; 175 ():532-549.
Chicago/Turabian StyleFrancesco Calise; Francesco L. Cappiello; Massimo Dentice D'Accadia; Maria Vicidomini. 2021. "Thermo-economic optimization of a novel hybrid renewable trigeneration plant." Renewable Energy 175, no. : 532-549.
Hospitals are very attractive for Combined Heat and Power (CHP) applications, due to their high and continuous demand for electric and thermal energy. However, both design and control strategies of CHP systems are usually based on an empiric and very simplified approach, and this may lead to non-optimal solutions. The paper presents a novel approach based on the dynamic simulation of a trigeneration system to be installed in a hospital located in Puglia (South Italy), with around 600 beds, aiming to investigate the energy and economic performance of the system, for a given control strategy (electric-load tracking). The system includes a natural gas fired reciprocating engine (with a rated power of 2.0 MW), a single-stage LiBr-H2O absorption chiller (with a cooling capacity of around 770 kW), auxiliary gas-fired boilers and steam generators, electric chillers, cooling towers, heat exchangers, storage tanks and several additional components (pipes, valves, etc.). Suitable control strategies, including proportional–integral–derivative (PID) and ON/OFF controllers, were implemented to optimize the trigeneration performance. The model includes a detailed simulation of the main components of the system and a specific routine for evaluating the heating and cooling demand of the building, based on a 3-D model of the building envelope. All component models were validated against experimental data provided by the manufacturers. Energy and economic models were also included in the simulation tool, to calculate the thermoeconomic performance of the system. The results show an excellent economic performance of the trigeneration system, with a payback period equal to 1.5 years and a profitability index (ratio of the Net Present Value to the capital cost) equal to 3.88, also due to the significant contribution of the subsidies provided by the current Italian regulation for CHP systems (energy savings certificates).
Francesco Calise; Francesco Liberato Cappiello; Massimo Dentice D'accadia; Luigi Libertini; Maria Vicidomini. Dynamic Simulation and Thermoeconomic Analysis of a Trigeneration System in a Hospital Application. Energies 2020, 13, 3558 .
AMA StyleFrancesco Calise, Francesco Liberato Cappiello, Massimo Dentice D'accadia, Luigi Libertini, Maria Vicidomini. Dynamic Simulation and Thermoeconomic Analysis of a Trigeneration System in a Hospital Application. Energies. 2020; 13 (14):3558.
Chicago/Turabian StyleFrancesco Calise; Francesco Liberato Cappiello; Massimo Dentice D'accadia; Luigi Libertini; Maria Vicidomini. 2020. "Dynamic Simulation and Thermoeconomic Analysis of a Trigeneration System in a Hospital Application." Energies 13, no. 14: 3558.
The aim of this work is the development of a simulation model for the anaerobic digestion process of source-sorted organic fractions of municipal solid wastes. In particular, a detailed model simulating both biological and thermal behaviors of the process was developed. The biological model is based on the Anaerobic Digestion Model 1 (ADM1), which allows one to evaluate the dynamic trends of the concentrations of the main components and the biogas production as a function of the digester operating temperature. The work also includes a detailed thermal model which is developed considering the geometrical and structural features of the digester. The thermal behavior of the digester was also modeled, considering a purposely designed heat exchanger immersed inside the digester. Therefore, the thermal behavior of the process was evaluated by the well-known heat exchange equations and thermal energy balances. The combination of these two models is used to analyze the different possible operating conditions of the system. The model is also able to consider that the reactor operating temperature and the biogas production dynamically depend on a plurality of parameters: inlet hot water temperature and flowrate of the heating system, outdoor temperature, flowrate of organic fraction. The numerical resolution of the obtained differential equations and thermal balances of the model was carried out in the MATLAB® environment. The result shows that the calculated biogas production is 0.132 Nm3 per kg of OFMSW. In addition, the model also shows that the inlet hot water temperature must be increased by about 1.5 °C, to increase by 1.0 °C the digester temperature.
Francesco Calise; Francesco Liberato Cappiello; Massimo Dentice D’Accadia; Alessandra Infante; Maria Vicidomini. Modeling of the Anaerobic Digestion of Organic Wastes: Integration of Heat Transfer and Biochemical Aspects. Energies 2020, 13, 2702 .
AMA StyleFrancesco Calise, Francesco Liberato Cappiello, Massimo Dentice D’Accadia, Alessandra Infante, Maria Vicidomini. Modeling of the Anaerobic Digestion of Organic Wastes: Integration of Heat Transfer and Biochemical Aspects. Energies. 2020; 13 (11):2702.
Chicago/Turabian StyleFrancesco Calise; Francesco Liberato Cappiello; Massimo Dentice D’Accadia; Alessandra Infante; Maria Vicidomini. 2020. "Modeling of the Anaerobic Digestion of Organic Wastes: Integration of Heat Transfer and Biochemical Aspects." Energies 13, no. 11: 2702.
This work presents a thermoeconomic comparison between two different solar energy technologies, namely the evacuated flat-plate solar collectors and the photovoltaic panels, integrated as auxiliary systems into two renewable polygeneration plants. Both plants produce electricity, heat and cool, and are based on a 6 kWe organic Rankine cycle (ORC), a 17-kW single-stage H2O/LiBr absorption chiller, a geothermal well at 96 °C, a 200 kWt biomass auxiliary heater, a 45.55 kWh lithium-ion battery and a 25 m2 solar field. In both configurations, electric and thermal storage systems are included to mitigate the fluctuations due to the variability of solar radiation. ORC is mainly supplied by the thermal energy produced by the geothermal well. Additional heat is also provided by solar thermal collectors and by a biomass boiler. In an alternative layout, solar thermal collectors are replaced by photovoltaic panels, producing additional electricity with respect to the one produced by the ORC. To reduce ORC condensation temperature and increase the electric efficiency, a ground-cooled condenser is also adopted. All the components included in both plants were accurately simulated in a TRNSYS environment using dynamic models validated versus literature and experimental data. The ORC is modeled by zero-dimensional energy and mass balances written in Engineering Equation Solver and implemented in TRNSYS. The models of both renewable polygeneration plants are applied to a suitable case study, a commercial area near Campi Flegrei (Naples, South Italy), a location well-known for its geothermal sources and good solar availability. The economic results suggest that for this kind of plant, photovoltaic panels show lower pay back periods than evacuated flat-plate solar collectors, 13 years vs 15 years. The adoption of the electric energy storage system leads to an increase of energy-self-sufficiency equal to 42% and 47% for evacuated flat-plate solar collectors and the photovoltaic panels, respectively.
Francesco Calise; Francesco Liberato Cappiello; Massimo Dentice D’Accadia; Maria Vicidomini. Thermo-Economic Analysis of Hybrid Solar-Geothermal Polygeneration Plants in Different Configurations. Energies 2020, 13, 2391 .
AMA StyleFrancesco Calise, Francesco Liberato Cappiello, Massimo Dentice D’Accadia, Maria Vicidomini. Thermo-Economic Analysis of Hybrid Solar-Geothermal Polygeneration Plants in Different Configurations. Energies. 2020; 13 (9):2391.
Chicago/Turabian StyleFrancesco Calise; Francesco Liberato Cappiello; Massimo Dentice D’Accadia; Maria Vicidomini. 2020. "Thermo-Economic Analysis of Hybrid Solar-Geothermal Polygeneration Plants in Different Configurations." Energies 13, no. 9: 2391.
The paper presents an in-depth analysis of a novel scheme for the sustainable mobility, based on electric vehicles, photovoltaic energy and electric energy storage systems. The work aims to analyse such innovative system, putting in evidence its advantages in comparison to a conventional one, based on the grid-to-vehicle technology. The study also provides interesting guidelines for potential users and system designers. Two case studies are presented: i) the taxi fleet of the city centre of Naples and ii) the cargo vans of the city of Salerno; both towns are in Southern Italy. For each case, the hourly power consumption of the vehicles was evaluated, as a function of the daily trip length. An accurate procedure was implemented to select the sites suitable for the installation of the charging stations, including a photovoltaic field and an electric storage system. A comparison was also performed between two different electric storage technologies: lead-acid and lithium-ion battery. The case studies were analysed by means of a detailed dynamic simulation model, developed in TRNSYS. A sensitivity analysis was also performed, to evaluate how different values of the most important design and operating parameters affect the system overall performance. It was found that the results are mostly affected by solar field area, capacity of the energy storage system and investment cost. The comparison between the two selected storage technologies did not exhibit significant differences. For both the cases investigated, it was found that, during the summer, solar energy covers an important amount of the total energy demand. On the contrary, in winter the amount of energy provided by the public electric grid was high. From an economic point of view, assuming a lithium-ion battery capital cost equal to 90 €/kWh, acceptable pay-back periods (about 6 years) were obtained, for both the applications considered.
Francesco Calise; Francesco Liberato Cappiello; Armando Cartenì; Massimo Dentice D’Accadia; Maria Vicidomini. A novel paradigm for a sustainable mobility based on electric vehicles, photovoltaic panels and electric energy storage systems: Case studies for Naples and Salerno (Italy). Renewable and Sustainable Energy Reviews 2019, 111, 97 -114.
AMA StyleFrancesco Calise, Francesco Liberato Cappiello, Armando Cartenì, Massimo Dentice D’Accadia, Maria Vicidomini. A novel paradigm for a sustainable mobility based on electric vehicles, photovoltaic panels and electric energy storage systems: Case studies for Naples and Salerno (Italy). Renewable and Sustainable Energy Reviews. 2019; 111 ():97-114.
Chicago/Turabian StyleFrancesco Calise; Francesco Liberato Cappiello; Armando Cartenì; Massimo Dentice D’Accadia; Maria Vicidomini. 2019. "A novel paradigm for a sustainable mobility based on electric vehicles, photovoltaic panels and electric energy storage systems: Case studies for Naples and Salerno (Italy)." Renewable and Sustainable Energy Reviews 111, no. : 97-114.
In this work, a dynamic model of a high-temperature integrated solar combined cycle power plant is presented. The system includes a three-pressure combined cycle power plant coupled to parabolic trough solar collectors. Thermal storage, a heat solar steam generator, pumps, heat exchangers, and several controllers are also included in the system. Solar energy is used to produce additional steam to be supplied to the steam turbine of the combined cycle power plant. The integrated solar combined cycle system is based on the heat transfer fluid arrangement, exploiting solar energy to produce steam. The analysis is developed by a dynamic simulation model including detailed algorithms for the calculation of the performances of system components. Special control strategies are included in the model in order to accurately manage the steam production of the heat solar steam generator. The paper presents a thermo-economic and environmental comparison between the integrated solar combined cycle and a conventional combined cycle, powered by fossil fuels, based on dynamic simulations. A case study, referred to a plant with a maximum power of around 100 MW, located in Almeria (Southern Spain), is presented and discussed. A parametric analysis was also performed to show the effect of the variation of total solar field reflector area on the system performance. For the case under evaluation, a simple pay-back of 15 years was found, for a solar field aperture area of 80 000 m2; however, the parametric analysis suggests that a smallest solar field area should be used under the hypotheses of the case study.
Francesco Calise; Massimo Dentice D'Accadia; Luigi Libertini; Maria Vicidomini. Thermoeconomic analysis of an integrated solar combined cycle power plant. Energy Conversion and Management 2018, 171, 1038 -1051.
AMA StyleFrancesco Calise, Massimo Dentice D'Accadia, Luigi Libertini, Maria Vicidomini. Thermoeconomic analysis of an integrated solar combined cycle power plant. Energy Conversion and Management. 2018; 171 ():1038-1051.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D'Accadia; Luigi Libertini; Maria Vicidomini. 2018. "Thermoeconomic analysis of an integrated solar combined cycle power plant." Energy Conversion and Management 171, no. : 1038-1051.
This work aims at presenting the current works concerning the polygeneration systems simulation, by specially focusing on the potential integration of different technologies into a single system. Polygeneration allows one to produce energy vectors (power, heating and cooling) as wells as other useful products (hydrogen, syngas, biodiesel, fertilizers, drinking water etc.) by converting one or multiple energy sources. Polygeneration system can be fuelled by renewable sources (geothermal, solar, biomass, wind, hydro), as well as fossil fuels (natural gas, coal, hydrogen, etc.). In this paper innovative energy technologies, such as fuel cells and conventional ones are taken into account, by also focusing on the control strategies implemented for the proper management of polygeneration systems in general. Works regarding energy, economic and exergy analyses and system optimizations are also illustrated.
Francesco Calise; Giulio De Notaristefani Di Vastogirardi; Massimo Dentice D'Accadia; Maria Vicidomini. Simulation of polygeneration systems. Energy 2018, 163, 290 -337.
AMA StyleFrancesco Calise, Giulio De Notaristefani Di Vastogirardi, Massimo Dentice D'Accadia, Maria Vicidomini. Simulation of polygeneration systems. Energy. 2018; 163 ():290-337.
Chicago/Turabian StyleFrancesco Calise; Giulio De Notaristefani Di Vastogirardi; Massimo Dentice D'Accadia; Maria Vicidomini. 2018. "Simulation of polygeneration systems." Energy 163, no. : 290-337.
This work presents a thermo-economic simulation model of a hybrid renewable power plant based on wind turbine and photovoltaic technologies, coupled to an energy storage system. The total plant capacity is 200 kW (190 kW and 10 kW, for photovoltaic and wind turbine, respectively), whereas the energy storage capacity is 400 kWh. Aim of this work is to design a renewable power plant showing limited fluctuations (with respect to the ones typically achieved in case of solar systems) with marginal amounts of electricity purchased or sold to the grid, maximizing the electricity self-consumption. The thermo-economic model, developed in TRNSYS environment, allows one to determine the best system configuration and maximize the economic profitability by considering the time-dependent tariffs applied to the electricity exchanged with the grid and the possibility to store electricity. Different system layouts with or without the storage system and for different users are considered. Results show negative profit indexes of the layouts including the storage system (−0.27 in the worst case vs. 0.61 in the best case without the storage), due to its lower efficiency and its higher capital cost, although a remarkable reduction of the operating costs and an enhancing of the self-consumed energy.
Annamaria Buonomano; Francesco Calise; Massimo Dentice D'Accadia; Maria Vicidomini. A hybrid renewable system based on wind and solar energy coupled with an electrical storage: Dynamic simulation and economic assessment. Energy 2018, 155, 174 -189.
AMA StyleAnnamaria Buonomano, Francesco Calise, Massimo Dentice D'Accadia, Maria Vicidomini. A hybrid renewable system based on wind and solar energy coupled with an electrical storage: Dynamic simulation and economic assessment. Energy. 2018; 155 ():174-189.
Chicago/Turabian StyleAnnamaria Buonomano; Francesco Calise; Massimo Dentice D'Accadia; Maria Vicidomini. 2018. "A hybrid renewable system based on wind and solar energy coupled with an electrical storage: Dynamic simulation and economic assessment." Energy 155, no. : 174-189.
Francesco Calise; Massimo Dentice D’Accadia; Edoardo Quiriti; Maria Vicidomini; Antonio Piacentino. Trigeneration and Polygeneration Configurations for Desalination and Other Beneficial Processes. Sustainable Desalination Handbook 2018, 99 -199.
AMA StyleFrancesco Calise, Massimo Dentice D’Accadia, Edoardo Quiriti, Maria Vicidomini, Antonio Piacentino. Trigeneration and Polygeneration Configurations for Desalination and Other Beneficial Processes. Sustainable Desalination Handbook. 2018; ():99-199.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D’Accadia; Edoardo Quiriti; Maria Vicidomini; Antonio Piacentino. 2018. "Trigeneration and Polygeneration Configurations for Desalination and Other Beneficial Processes." Sustainable Desalination Handbook , no. : 99-199.
Ozeair Abessi; Aisha Al Bloushi; Edo Bar-Zeev; Jamel Belhadj; Natalia Belkin; Ilana Berman-Frank; Liat Birnhack; Francesco Calise; David A. Caron; Habib Cherif; Massimo Dentice D’Accadia; Hila Frank; Adewale Giwa; Brent Haddad; Shadi W. Hasan; Nadine Heck; J. Jaime Sadhwani Alonso; Nurit Kress; Ori Lahav; Noemi Melián-Martel; Ângelo Paggi Matos; Toufic Mezher; Adina Paytan; Karen L. Petersen; Antonio Piacentino; Donald Potts; Edoardo Quiriti; Antonio Santos Sánchez; Erica L. Seubert; Abhishek Shrivastava; Derek Stevens; Maria Vicidomini; Nikolay Voutchkov; Dennis E. Williams. Contributors. Sustainable Desalination Handbook 2018, 1 .
AMA StyleOzeair Abessi, Aisha Al Bloushi, Edo Bar-Zeev, Jamel Belhadj, Natalia Belkin, Ilana Berman-Frank, Liat Birnhack, Francesco Calise, David A. Caron, Habib Cherif, Massimo Dentice D’Accadia, Hila Frank, Adewale Giwa, Brent Haddad, Shadi W. Hasan, Nadine Heck, J. Jaime Sadhwani Alonso, Nurit Kress, Ori Lahav, Noemi Melián-Martel, Ângelo Paggi Matos, Toufic Mezher, Adina Paytan, Karen L. Petersen, Antonio Piacentino, Donald Potts, Edoardo Quiriti, Antonio Santos Sánchez, Erica L. Seubert, Abhishek Shrivastava, Derek Stevens, Maria Vicidomini, Nikolay Voutchkov, Dennis E. Williams. Contributors. Sustainable Desalination Handbook. 2018; ():1.
Chicago/Turabian StyleOzeair Abessi; Aisha Al Bloushi; Edo Bar-Zeev; Jamel Belhadj; Natalia Belkin; Ilana Berman-Frank; Liat Birnhack; Francesco Calise; David A. Caron; Habib Cherif; Massimo Dentice D’Accadia; Hila Frank; Adewale Giwa; Brent Haddad; Shadi W. Hasan; Nadine Heck; J. Jaime Sadhwani Alonso; Nurit Kress; Ori Lahav; Noemi Melián-Martel; Ângelo Paggi Matos; Toufic Mezher; Adina Paytan; Karen L. Petersen; Antonio Piacentino; Donald Potts; Edoardo Quiriti; Antonio Santos Sánchez; Erica L. Seubert; Abhishek Shrivastava; Derek Stevens; Maria Vicidomini; Nikolay Voutchkov; Dennis E. Williams. 2018. "Contributors." Sustainable Desalination Handbook , no. : 1.
Energy policies accompanying the transition towards a sustainable development process must be supported by technical analyses in which future energy scenarios are modeled and evaluated. This paper analyzes possible decarbonization scenarios in Italy for the year 2050. They envisage high electrification of transports and residential buildings, high use of renewable energies, and a modal shift towards public transport. The energy scenarios are evaluated using a software program, EnergyPLAN, starting from a reference model developed for the year 2014. Special attention has been given to the modeling of data that are unavailable in the literature, such as the time profile of heating and cooling demands, obtained with the degree-days method and validated by elaborating the results of the modeling of the residential building stock, this latter was dynamically simulated in TRNSYS. The results show that to obtain a significant decrease of greenhouse gas emissions and fossil fuel consumption, it is necessary not only to promote a deeper penetration of renewable sources, but also their integration with other technologies (cogeneration, trigeneration, power-to-heat systems, thermal storage, vehicle-to-grid operations). In fact, renewables technologies alone can raise some critical issues, such as excess and/or shortage of electricity production and non-sustainable exploitation of biomass.
Francesco Calise; Massimo Dentice D’Accadia; Carlo Barletta; Vittoria Battaglia; Antun Pfeifer; Neven Duic. Detailed Modelling of the Deep Decarbonisation Scenarios with Demand Response Technologies in the Heating and Cooling Sector: A Case Study for Italy. Energies 2017, 10, 1535 .
AMA StyleFrancesco Calise, Massimo Dentice D’Accadia, Carlo Barletta, Vittoria Battaglia, Antun Pfeifer, Neven Duic. Detailed Modelling of the Deep Decarbonisation Scenarios with Demand Response Technologies in the Heating and Cooling Sector: A Case Study for Italy. Energies. 2017; 10 (10):1535.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D’Accadia; Carlo Barletta; Vittoria Battaglia; Antun Pfeifer; Neven Duic. 2017. "Detailed Modelling of the Deep Decarbonisation Scenarios with Demand Response Technologies in the Heating and Cooling Sector: A Case Study for Italy." Energies 10, no. 10: 1535.
Francesco Calise; Massimo Dentice D'Accadia; Luigi Libertini; Edoardo Quiriti; Raffaele Vanoli; Maria Vicidomini. Optimal operating strategies of combined cooling, heating and power systems: A case study for an engine manufacturing facility. Energy Conversion and Management 2017, 149, 1066 -1084.
AMA StyleFrancesco Calise, Massimo Dentice D'Accadia, Luigi Libertini, Edoardo Quiriti, Raffaele Vanoli, Maria Vicidomini. Optimal operating strategies of combined cooling, heating and power systems: A case study for an engine manufacturing facility. Energy Conversion and Management. 2017; 149 ():1066-1084.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D'Accadia; Luigi Libertini; Edoardo Quiriti; Raffaele Vanoli; Maria Vicidomini. 2017. "Optimal operating strategies of combined cooling, heating and power systems: A case study for an engine manufacturing facility." Energy Conversion and Management 149, no. : 1066-1084.
Francesco Calise; Massimo Dentice D'Accadia; Luigi Libertini; Edoardo Quiriti; Maria Vicidomini. A novel tool for thermoeconomic analysis and optimization of trigeneration systems: A case study for a hospital building in Italy. Energy 2017, 126, 64 -87.
AMA StyleFrancesco Calise, Massimo Dentice D'Accadia, Luigi Libertini, Edoardo Quiriti, Maria Vicidomini. A novel tool for thermoeconomic analysis and optimization of trigeneration systems: A case study for a hospital building in Italy. Energy. 2017; 126 ():64-87.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D'Accadia; Luigi Libertini; Edoardo Quiriti; Maria Vicidomini. 2017. "A novel tool for thermoeconomic analysis and optimization of trigeneration systems: A case study for a hospital building in Italy." Energy 126, no. : 64-87.
This Special Issue aims at collecting the recent studies dealing with polygeneration systems, with a special focus on the possible integration of different technologies into a single system, able to convert one or multiple energy sources into energy services (electricity, heat and cooling) and other useful products (e.g., desalinized water, hydrogen, glycerin, ammonia, etc.). Renewable sources (solar, wind, hydro, biomass and geothermal), as well as fossil fuels, feeding advanced energy systems such as fuel cells and cogeneration systems, are considered. Special attention is paid to control strategies and to the management of the systems in general. Studies including thermoeconomic analyses and system optimizations are presented.
Francesco Calise; Massimo Dentice D’Accadia. Simulation of Polygeneration Systems. Energies 2016, 9, 925 .
AMA StyleFrancesco Calise, Massimo Dentice D’Accadia. Simulation of Polygeneration Systems. Energies. 2016; 9 (11):925.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D’Accadia. 2016. "Simulation of Polygeneration Systems." Energies 9, no. 11: 925.
In this paper, an innovative solar-geothermal polygeneration system is investigated. The system supplies a small community with electricity, desalinated water and space heating and cooling through a district network. The hybrid multi-purpose plant, based on an Organic Rankine Cycle (ORC) supplied by medium-enthalpy geothermal energy and by solar energy; this latter is provided by Parabolic Trough Collectors (PTC). The geothermal brine is first used to drive the ORC loop, then to provide space heating at around 85÷90 °C (in the winter), or cooling (in the summer, by means of a single-effect absorption chiller). Finally, the geothermal brine drives a Multi-Effect Distillation (MED) system, where seawater is converted into freshwater. For such a system, a dynamic simulation model was developed in TRNSYS environment. In particular, the ORC model, developed in Engineering Equation Solver (EES), was based on zero-dimensional energy and mass balances and includes specific algorithms to evaluate the off-design performance. Similarly, a novel model of the MED unit was developed in EES. Suitable control strategies were implemented for the optimal management of system. The energy and economic performance of the system under analysis was investigated, using different time bases (day, week, month, year). Finally, a sensitivity analysis was performed to determine the set of system, design/control parameters able to minimize the simple payback period. The results showed that the novel system is highly flexible and efficient. On the other hand, a significant capital cost must be taken into account, so that the system is economically profitable only when the majority of the energy available for heating and cooling purposes is actually used.
Francesco Calise; Massimo Dentice D'Accadia; Adriano Macaluso; Laura Vanoli; Antonio Piacentino. A novel solar-geothermal trigeneration system integrating water desalination: Design, dynamic simulation and economic assessment. Energy 2016, 115, 1533 -1547.
AMA StyleFrancesco Calise, Massimo Dentice D'Accadia, Adriano Macaluso, Laura Vanoli, Antonio Piacentino. A novel solar-geothermal trigeneration system integrating water desalination: Design, dynamic simulation and economic assessment. Energy. 2016; 115 ():1533-1547.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D'Accadia; Adriano Macaluso; Laura Vanoli; Antonio Piacentino. 2016. "A novel solar-geothermal trigeneration system integrating water desalination: Design, dynamic simulation and economic assessment." Energy 115, no. : 1533-1547.
Francesco Calise; Massimo Dentice D’Accadia; Rafal Damian Figaj; Laura Vanoli. Thermoeconomic optimization of a solar-assisted heat pump based on transient simulations and computer Design of Experiments. Energy Conversion and Management 2016, 125, 166 -184.
AMA StyleFrancesco Calise, Massimo Dentice D’Accadia, Rafal Damian Figaj, Laura Vanoli. Thermoeconomic optimization of a solar-assisted heat pump based on transient simulations and computer Design of Experiments. Energy Conversion and Management. 2016; 125 ():166-184.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D’Accadia; Rafal Damian Figaj; Laura Vanoli. 2016. "Thermoeconomic optimization of a solar-assisted heat pump based on transient simulations and computer Design of Experiments." Energy Conversion and Management 125, no. : 166-184.
A dynamic simulation model of a novel solar–geothermal polygeneration system and the related exergetic and exergoeconomic analyses are presented in this paper. The plant is designed in order to supply electrical, thermal and cooling energy and fresh water for a small community, connected to a district heating and cooling network. The hybrid system is equipped with an Organic Rankine Cycle fueled by medium-enthalpy geothermal energy and by a Parabolic Trough Collector solar field. Geothermal brine is also used for space heating and cooling purposes. Finally, geothermal fluid supplies heat to a Multi-Effect Distillation unit, producing also desalinized water from seawater. Dynamic simulations were performed in order to design the system. The overall simulation model, implemented in TRNSYS environment, includes detailed algorithms for the simulation of system components. Detailed control strategies were included in the model in order to properly manage the system. An exergetic and exergoeconomic analysis is also implemented. The exergetic analysis allows to identify all the aspects that affect the global exergy efficiency, in order to suggest possible system enhancements. The accounting of exergoeconomic costs aims at establishing a monetary value to all material and energy flows, then providing a reasonable basis for price allocation. The analysis is applied to integral values of energy and a comparison of results between summer and winter season is performed. Results are analyzed on different time bases presenting energetic, exergetic, economic and exergoeconomic performance data. Results show that global exergy efficiency varies between 40% and 50% during the “Thermal Recovery Mode” operation and between 16% and 20% during the “Cooling mode” operation. It was also found that electricity, chilled water, cooling water and desalinated water exergoeconomic costs vary respectively in the ranges 0.1475–0.1722 €/kW h, 0.1863–0.1888 €/kW hex, 0.01612–0.01702 €/kW hex and 0.5695–0.6023 €/kW hex.
Francesco Calise; Massimo Dentice D’Accadia; Adriano Macaluso; Antonio Piacentino; Laura Vanoli. Exergetic and exergoeconomic analysis of a novel hybrid solar–geothermal polygeneration system producing energy and water. Energy Conversion and Management 2016, 115, 200 -220.
AMA StyleFrancesco Calise, Massimo Dentice D’Accadia, Adriano Macaluso, Antonio Piacentino, Laura Vanoli. Exergetic and exergoeconomic analysis of a novel hybrid solar–geothermal polygeneration system producing energy and water. Energy Conversion and Management. 2016; 115 ():200-220.
Chicago/Turabian StyleFrancesco Calise; Massimo Dentice D’Accadia; Adriano Macaluso; Antonio Piacentino; Laura Vanoli. 2016. "Exergetic and exergoeconomic analysis of a novel hybrid solar–geothermal polygeneration system producing energy and water." Energy Conversion and Management 115, no. : 200-220.
In this study the model of a Solar Heating and Cooling (SHC) system and its experimental setup are presented. The SHC system under investigation is a demonstration plant installed in Naples, based on flat plate solar collectors and a single-stage LiBr-H2O absorption chiller. In addition, two vertical tanks are installed as storage system. The balance of system includes: A cooling tower, pumps, valves, safety devices and pipes. The absorption chiller is powered only by solar energy, since there are devices for auxiliary thermal energy. The experimental setup also includes a number of meters (temperature, pressure, flow rate and radiation) to measure, collect and control the prototypal system. The experimental plant is dynamically designed and simulated in order to calculate its energetic and economic performance parameters. This analysis is carried out by means of a zero-dimensional transient simulation model, developed by using the TRNSYS software. Furthermore, a parametric analysis is implemented, aiming at determining the set of the synthesis/design variables that maximize system performances. The model was validated by the first experimental results obtained by the operation of the solar cooling system. Results show that, although flat-plate solar collectors have been specially designed for this kind of application, their operating temperature is often too low to drive the absorption chiller. In addition, the system performance is not particularly sensitive to the storage volume whereas the thermal capacity of the solar field is lower than the absorption chiller demand, determining a very discontinuous operation of the chiller itself.
Annamaria Buonomano; Francesco Calise; Massimo Dentice D'accadia; Raffaele Vanoli; Maria Vicidomini. Simulation and Experimental Analysis of a Demonstrative Solar Heating and Cooling Plant Installed in Naples (Italy). American Journal of Engineering and Applied Sciences 2016, 9, 798 -813.
AMA StyleAnnamaria Buonomano, Francesco Calise, Massimo Dentice D'accadia, Raffaele Vanoli, Maria Vicidomini. Simulation and Experimental Analysis of a Demonstrative Solar Heating and Cooling Plant Installed in Naples (Italy). American Journal of Engineering and Applied Sciences. 2016; 9 (4):798-813.
Chicago/Turabian StyleAnnamaria Buonomano; Francesco Calise; Massimo Dentice D'accadia; Raffaele Vanoli; Maria Vicidomini. 2016. "Simulation and Experimental Analysis of a Demonstrative Solar Heating and Cooling Plant Installed in Naples (Italy)." American Journal of Engineering and Applied Sciences 9, no. 4: 798-813.