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The use of industrial excess heat in district heating networks is very attractive. The main issue is the transport of the heat from the point of generation to the local distribution network, in a way similar to the structure of electricity transport and distribution networks. Absorption systems have been proposed to transport and distribute waste heat using two absorption stations. In one of them (step-up station), industrial heat at a low temperature is pumped to a higher temperature to facilitate its transport and at the same time increase the temperature difference between the supply and return streams, in this way reducing the hot water mass flow rate circulating through the heat transport network. Heat is then used in a second absorption system (step-down station) to provide heat to a low temperature local district network. In this paper, several absorption system configurations are analyzed for both stations. A detailed thermodynamic analysis of each configuration is performed using selected energy performance indicators to calculate its global performance. The implementation of these kind of systems could enable the use of waste heat to produce heating and cooling for smart communities located a few dozens of kilometers away from industrial sites.
Antonio Atienza-Márquez; Joan Carles Bruno; Alberto Coronas. Recovery and Transport of Industrial Waste Heat for Their Use in Urban District Heating and Cooling Networks Using Absorption Systems. Applied Sciences 2019, 10, 291 .
AMA StyleAntonio Atienza-Márquez, Joan Carles Bruno, Alberto Coronas. Recovery and Transport of Industrial Waste Heat for Their Use in Urban District Heating and Cooling Networks Using Absorption Systems. Applied Sciences. 2019; 10 (1):291.
Chicago/Turabian StyleAntonio Atienza-Márquez; Joan Carles Bruno; Alberto Coronas. 2019. "Recovery and Transport of Industrial Waste Heat for Their Use in Urban District Heating and Cooling Networks Using Absorption Systems." Applied Sciences 10, no. 1: 291.
Liquefied Natural Gas (LNG) is becoming vital in relation to energy transition and fighting climate change. Because of its cryogenic temperature (111 K), LNG is an exergy “mine” that can be exploited in the regasification process for multiple industrial applications. But this exergy is usually wasted. This research presents a Combined Cold and Power (CCP) system with exergy recovery from LNG-regasification. This exergy is exploited for the combined production of electricity and low-temperature refrigeration distributed through a CO2 District Cooling Network. These systems entail many benefits, but also pending challenges. The CCP system is modelled using real operation data, and its performance is analyzed and benchmarked against that of a cryogenic power plant, both at design and off-design operating conditions. The proposed CCP system reports an equivalent electricity saving of 139 kWh/t-LNG with an exergetic efficiency of 40%, turning into useful energy up to 64% of the maximum cold recoverable in the regasification process. The performance enhances as the heat source temperature rises. Higher LNG flow rates contribute to increase the electricity and refrigeration production, but irreversibilities also increase. Finally, findings show that a low LNG regasification pressure is preferable in spite of the negative effect on the power generation.
Antonio Atienza-Márquez; Joan Carles Bruno; Atsushi Akisawa; Alberto Coronas. Performance analysis of a combined cold and power (CCP) system with exergy recovery from LNG-regasification. Energy 2019, 183, 448 -461.
AMA StyleAntonio Atienza-Márquez, Joan Carles Bruno, Atsushi Akisawa, Alberto Coronas. Performance analysis of a combined cold and power (CCP) system with exergy recovery from LNG-regasification. Energy. 2019; 183 ():448-461.
Chicago/Turabian StyleAntonio Atienza-Márquez; Joan Carles Bruno; Atsushi Akisawa; Alberto Coronas. 2019. "Performance analysis of a combined cold and power (CCP) system with exergy recovery from LNG-regasification." Energy 183, no. : 448-461.
This paper presents the experimental investigation and development of a general semi empirical scroll expander model for different working fluids. Initially, the characterization and modelling of a scroll expander with R134a working fluid is performed. The influence of key operating variables on the main performance indicators such as isentropic efficiency, filling factor and specific power are investigated. The proposed semi empirical model for the scroll expander predicts mass flow rate, mechanical shaft power and exhaust temperature at accuracies of 3%, 9% and 2 K respectively. The developed semi empirical model is then modified to accommodate different working fluids; validation of the generalization procedure is performed with experimental data using ammonia/water mixture and ammonia as working fluids. The generalized semi-empirical model predicts mass flow rate, mechanical shaft power and exhaust temperature to be less than 5%, 7% and 4 K error margin for both ammonia/water and pure ammonia working fluids. Therefore, the simulation model presented in this study can save the time and material resources for the selected scroll expander solely as a consequence of a change in the working fluid to predict the main performance indicators.
J. Muye; G. Praveen Kumar; J.C. Bruno; R. Saravanan; A. Coronas. Modelling of scroll expander for different working fluids for low capacity power generation. Applied Thermal Engineering 2019, 159, 113932 .
AMA StyleJ. Muye, G. Praveen Kumar, J.C. Bruno, R. Saravanan, A. Coronas. Modelling of scroll expander for different working fluids for low capacity power generation. Applied Thermal Engineering. 2019; 159 ():113932.
Chicago/Turabian StyleJ. Muye; G. Praveen Kumar; J.C. Bruno; R. Saravanan; A. Coronas. 2019. "Modelling of scroll expander for different working fluids for low capacity power generation." Applied Thermal Engineering 159, no. : 113932.
Liquefied Natural Gas (LNG) is a valuable exergetic source due to its low-temperature (−162 °C). However, LNG is regasified using seawater as heat source and without exergy recovery in most of LNG terminals worldwide. In this paper we model a polygeneration plant that recovers the low-temperature and pressure exergy from LNG-regasification to generate simultaneously power and refrigeration in a District Cooling network at three different temperature levels. The plant is divided into different subsystems arranged in cascade. The objective of this research is the selection of the most suitable working fluids and heat transfer fluids for operating in each subsystem. The performance of the system is analyzed from the thermodynamic and environmental point of view. Although neither of the candidate fluids satisfies all the desirable features, the selected fluids are: methane, carbon dioxide and propane. The plant achieves an equivalent electricity production of 125 kWh for metric ton of LNG regasified with an exergetic efficiency of 40.6%. Besides, the seawater utilized in the plant is 60% lower than the required by the common LNG regasification process and an annual emission of 75 thousand tons of CO2 is avoided.
Antonio Atienza-Márquez; Joan Carles Bruno; Atsushi Akisawa; Masayuki Nakayama; Alberto Coronas. Fluids selection and performance analysis of a polygeneration plant with exergy recovery from LNG-regasification. Energy 2019, 176, 1020 -1036.
AMA StyleAntonio Atienza-Márquez, Joan Carles Bruno, Atsushi Akisawa, Masayuki Nakayama, Alberto Coronas. Fluids selection and performance analysis of a polygeneration plant with exergy recovery from LNG-regasification. Energy. 2019; 176 ():1020-1036.
Chicago/Turabian StyleAntonio Atienza-Márquez; Joan Carles Bruno; Atsushi Akisawa; Masayuki Nakayama; Alberto Coronas. 2019. "Fluids selection and performance analysis of a polygeneration plant with exergy recovery from LNG-regasification." Energy 176, no. : 1020-1036.
Polygeneration energy systems are proven to be a reliable, competitive and efficient solution for energy production. The recovery of otherwise wasted energy is the primary reason for the high efficiency of polygeneration systems. In this paper, the integration of a high-temperature heat pump within a trigeneration system is investigated. The heat pump uses the low-temperature heat from the condenser of the absorption chiller as heat source to produce hot water. A numerical model of the heat pump cycle is developed to evaluate the technical viability of current heat pump technology for this application and assess the performance of different working fluids. An exergy analysis is performed to show the advantages of the novel trigeneration system with respect to traditional systems for energy production. Moreover, a levelized cost of electricity method is applied to the proposed energy system to show its generic economic feasibility. Finally, actual energy demand data from an Italian pharmaceutical factory are considered to evaluate the economic savings obtainable with the integrated system, implemented in a case study. A two-level algorithm is proposed for the economic optimization of the investment. The synthesis/design problem is addressed by a genetic algorithm and the optimal operation problem is solved by a linear programming method. Results show that the integration of a high-temperature heat pump within a trigeneration system provides flexibility to cover variable energy demands and achieve valuable economic and energy performances, with global cost savings of around 40% with respect to separate production and around 10% with respect to traditional cogeneration and trigeneration systems.
Luca Urbanucci; Joan Carles Bruno; Daniele Testi. Thermodynamic and economic analysis of the integration of high-temperature heat pumps in trigeneration systems. Applied Energy 2019, 238, 516 -533.
AMA StyleLuca Urbanucci, Joan Carles Bruno, Daniele Testi. Thermodynamic and economic analysis of the integration of high-temperature heat pumps in trigeneration systems. Applied Energy. 2019; 238 ():516-533.
Chicago/Turabian StyleLuca Urbanucci; Joan Carles Bruno; Daniele Testi. 2019. "Thermodynamic and economic analysis of the integration of high-temperature heat pumps in trigeneration systems." Applied Energy 238, no. : 516-533.
It has been estimated that the world’s consumption of liquefied natural gas (LNG) will increase significantly over the next 20 years, thus making exergy recovery from the regasification process a fundamental issue. When LNG is regasified in order to distribute the fuel through a pipeline network, a large amount of exergy is released. Three combined cycle schemes for energy generation have been analysed in this paper: the first one is a direct expansion cycle, combined with a Rankine cycle, the second one presents a double expansion with reheating and a recovery heat exchanger, and the last one shows two parallel Rankine cycles working under different turbine pressures. The performance of the three cycles has been compared, and the effects of using working fluids with different characteristics have been analysed in detail. Twelve working fluids were selected, according to their thermodynamic, ambient and safety proprieties. The working pressure and temperature that maximise the specific work have been found for each cycle and fluid.
Marco Badami; Joan Carles Bruno; Alberto Coronas; Gabriele Fambri. Analysis of different combined cycles and working fluids for LNG exergy recovery during regasification. Energy 2018, 159, 373 -384.
AMA StyleMarco Badami, Joan Carles Bruno, Alberto Coronas, Gabriele Fambri. Analysis of different combined cycles and working fluids for LNG exergy recovery during regasification. Energy. 2018; 159 ():373-384.
Chicago/Turabian StyleMarco Badami; Joan Carles Bruno; Alberto Coronas; Gabriele Fambri. 2018. "Analysis of different combined cycles and working fluids for LNG exergy recovery during regasification." Energy 159, no. : 373-384.
The combined production of electricity, heat and cold by a polygeneration system connected to a district heating and cooling network can provide high energy utilization efficiency. The inherent complexity of simultaneous production of different services and the high variability in the energy demand make combined cooling and heating systems performance highly dependent on the operational strategy. In this paper, an operational optimization method based on the moving average of real-time measurements of energy demands and ambient conditions is proposed. Real energy demand data from a district heating and cooling network close to Barcelona, Spain, are used to test the method. A complex polygeneration system is considered, consisting of an internal combustion engine, a double-effect absorption chiller, an electric chiller, a boiler and a cooling tower. A detailed modelling of the system is provided, considering partial load behavior of the components and ambient conditions effects. Results of the real-time optimal management are discussed and compared to traditional operational strategies and to the ideal optimal management achievable with perfectly accurate forecast of energy demands. Moreover, the optimal width of the window adopted for the moving average of real-time data is identified.
L. Urbanucci; D. Testi; J.C. Bruno. An operational optimization method for a complex polygeneration plant based on real-time measurements. Energy Conversion and Management 2018, 170, 50 -61.
AMA StyleL. Urbanucci, D. Testi, J.C. Bruno. An operational optimization method for a complex polygeneration plant based on real-time measurements. Energy Conversion and Management. 2018; 170 ():50-61.
Chicago/Turabian StyleL. Urbanucci; D. Testi; J.C. Bruno. 2018. "An operational optimization method for a complex polygeneration plant based on real-time measurements." Energy Conversion and Management 170, no. : 50-61.
Liquefied Natural Gas (LNG) has a high exergetic potential because of its low temperature (around -162°C), although usually the cold released from LNG regasification is wasted. In this paper, the LNG supply chain and the conventional regasification technologies are reviewed and analyzed to identify the cold recovery opportunities. Also, an overview of the applications and technologies for LNG cold recovery is presented. Although there many applications and technologies for this purpose, most of them are immatures and their implementation is not widespread. Besides, most of the literature is focused on exploiting LNG cold for a single application, while LNG cold offers a lot of possibilities of exploitation via polygeneration. In the second part of this paper, a polygeneration plant for power and cold production is proposed and modelled as a case study for cold recovery from LNG-regasification. The structure of the plant is engineered to operate with high flexibility. The LNG exergy is exploited in cascade for power production and cold generation in a district cooling network with three different temperature levels. The plant achieves an equivalent energy saving of 81.1 kWh/ton-LNG with an exergetic efficiency of 34.7%. The seawater consumption is reduced 67.6% respect to the typical LNG regasification.
Antonio Atienza-Márquez; Joan Carles Bruno; Alberto Coronas. Cold recovery from LNG-regasification for polygeneration applications. Applied Thermal Engineering 2018, 132, 463 -478.
AMA StyleAntonio Atienza-Márquez, Joan Carles Bruno, Alberto Coronas. Cold recovery from LNG-regasification for polygeneration applications. Applied Thermal Engineering. 2018; 132 ():463-478.
Chicago/Turabian StyleAntonio Atienza-Márquez; Joan Carles Bruno; Alberto Coronas. 2018. "Cold recovery from LNG-regasification for polygeneration applications." Applied Thermal Engineering 132, no. : 463-478.
Mohammad Hossein Ahmadi; Mehdi Mehrpooya; Sara Abbasi; Fathollah Pourfayaz; Joan Carles Bruno. Thermo-economic analysis and multi-objective optimization of a transcritical CO 2 power cycle driven by solar energy and LNG cold recovery. Thermal Science and Engineering Progress 2017, 4, 185 -196.
AMA StyleMohammad Hossein Ahmadi, Mehdi Mehrpooya, Sara Abbasi, Fathollah Pourfayaz, Joan Carles Bruno. Thermo-economic analysis and multi-objective optimization of a transcritical CO 2 power cycle driven by solar energy and LNG cold recovery. Thermal Science and Engineering Progress. 2017; 4 ():185-196.
Chicago/Turabian StyleMohammad Hossein Ahmadi; Mehdi Mehrpooya; Sara Abbasi; Fathollah Pourfayaz; Joan Carles Bruno. 2017. "Thermo-economic analysis and multi-objective optimization of a transcritical CO 2 power cycle driven by solar energy and LNG cold recovery." Thermal Science and Engineering Progress 4, no. : 185-196.
Dereje Sendeku Ayou; Joan Carles Bruno; Alberto Coronas. Integration of a mechanical and thermal compressor booster in combined absorption power and refrigeration cycles. Energy 2017, 135, 327 -341.
AMA StyleDereje Sendeku Ayou, Joan Carles Bruno, Alberto Coronas. Integration of a mechanical and thermal compressor booster in combined absorption power and refrigeration cycles. Energy. 2017; 135 ():327-341.
Chicago/Turabian StyleDereje Sendeku Ayou; Joan Carles Bruno; Alberto Coronas. 2017. "Integration of a mechanical and thermal compressor booster in combined absorption power and refrigeration cycles." Energy 135, no. : 327-341.
Trigeneration plants can use different types of chillers in the same plant, typically single effect and double effect absorption chillers, vapour compression chillers and also cooling storage systems. The highly variable cooling demand of the buildings connected to a district heating and cooling (DHC) network has to be distributed among these chillers to achieve lower operating costs and higher energy efficiencies. This problem is difficult to solve due to the different partial load behaviour of each chiller and the different chiller combinations that can cover a certain cooling demand using an appropriate sizing of the cooling storage. The objective of this paper is to optimize the daily plant operation of an existing trigeneration plant based on cogeneration engines and to study the optimal cooling load sharing between different types of absorption chillers using a mixed integer linear programming (MILP) model. Real data from a trigeneration plant connected to a DHC close to Barcelona (Spain) is used for the development of this model. The cooling load distribution among the different units is heavily influenced by the price of the electricity sold to the grid which rules the duration of the operation time of the engines. The main parameter to compare load distribution configurations is the primary energy saving indicator. Cooling load distribution among the different chillers changes also with the load of the whole plant because the chiller performance changes with load.
Benedetto Conte; Joan Carles Bruno; Alberto Coronas. Optimal Cooling Load Sharing Strategies for Different Types of Absorption Chillers in Trigeneration Plants. Energies 2016, 9, 573 .
AMA StyleBenedetto Conte, Joan Carles Bruno, Alberto Coronas. Optimal Cooling Load Sharing Strategies for Different Types of Absorption Chillers in Trigeneration Plants. Energies. 2016; 9 (8):573.
Chicago/Turabian StyleBenedetto Conte; Joan Carles Bruno; Alberto Coronas. 2016. "Optimal Cooling Load Sharing Strategies for Different Types of Absorption Chillers in Trigeneration Plants." Energies 9, no. 8: 573.
This article presents several combined absorption cycles proposed for the simultaneous and/or alternative production of power (mechanical or electrical) and refrigeration. The cycles are classified into two groups according to their driving heat source temperature range as low-grade (<200°C (392°F)) and mid-grade (<300°C (572°F)) combined absorption cycles. The thermodynamic performance of these cycle configurations were evaluated based on energetic and exergetic performance criteria that consider the thermodynamic quality of their useful outputs in both performance criteria. One particularly interesting application of such types of cycles could be the efficient utilization of solar thermal collector installations throughout the year to produce variable amounts of electricity and cooling according to a given building demand to minimize the consumption of primary energy.
Dereje Sendeku Ayou; Joan Carles Bruno; Alberto Coronas. Combined absorption power and refrigeration cycles using low- and mid-grade heat sources. Science and Technology for the Built Environment 2015, 21, 934 -943.
AMA StyleDereje Sendeku Ayou, Joan Carles Bruno, Alberto Coronas. Combined absorption power and refrigeration cycles using low- and mid-grade heat sources. Science and Technology for the Built Environment. 2015; 21 (7):934-943.
Chicago/Turabian StyleDereje Sendeku Ayou; Joan Carles Bruno; Alberto Coronas. 2015. "Combined absorption power and refrigeration cycles using low- and mid-grade heat sources." Science and Technology for the Built Environment 21, no. 7: 934-943.
Ajay K. Arora; Bhavya Balagurumurthy; Melisa Bertero; Thallada Bhaskar; Joël Blin; Neonjyoti Bordoloi; Joan Carles Bruno; Sankar Chakma; Hanif A. Choudhury; Rahul S. Chutia; Martin Drobek; Axel Funke; Vamshi Krishna Guda; Norihito Hiyoshi; Emma Jakab; Anne Julbe; Rupam Kataki; Andrea Kruse; Qi Li; Yukihiko Matsumura; Mridusmita Mishra; Vijayanand S. Moholkar; Robert W. Nachenius; Priyanka Ohri; Mitsumasa Osada; Ashok Pandey; Venkata K. Penmetsa; François Pinta; Aditya Prakash; Wolter Prins; Maria Puig-Arnavat; S.K. Puri; Yohan Richardson; Frederik Ronsse; Ruprekha Saikia; Osamu Sato; Ulises Sedran; Masayuki Shirai; Rawel Singh; Philip H. Steele; Maria-Magdalena Titirici; Aritomo Yamaguchi. Contributors. Recent Advances in Thermo-Chemical Conversion of Biomass 2015, 1 .
AMA StyleAjay K. Arora, Bhavya Balagurumurthy, Melisa Bertero, Thallada Bhaskar, Joël Blin, Neonjyoti Bordoloi, Joan Carles Bruno, Sankar Chakma, Hanif A. Choudhury, Rahul S. Chutia, Martin Drobek, Axel Funke, Vamshi Krishna Guda, Norihito Hiyoshi, Emma Jakab, Anne Julbe, Rupam Kataki, Andrea Kruse, Qi Li, Yukihiko Matsumura, Mridusmita Mishra, Vijayanand S. Moholkar, Robert W. Nachenius, Priyanka Ohri, Mitsumasa Osada, Ashok Pandey, Venkata K. Penmetsa, François Pinta, Aditya Prakash, Wolter Prins, Maria Puig-Arnavat, S.K. Puri, Yohan Richardson, Frederik Ronsse, Ruprekha Saikia, Osamu Sato, Ulises Sedran, Masayuki Shirai, Rawel Singh, Philip H. Steele, Maria-Magdalena Titirici, Aritomo Yamaguchi. Contributors. Recent Advances in Thermo-Chemical Conversion of Biomass. 2015; ():1.
Chicago/Turabian StyleAjay K. Arora; Bhavya Balagurumurthy; Melisa Bertero; Thallada Bhaskar; Joël Blin; Neonjyoti Bordoloi; Joan Carles Bruno; Sankar Chakma; Hanif A. Choudhury; Rahul S. Chutia; Martin Drobek; Axel Funke; Vamshi Krishna Guda; Norihito Hiyoshi; Emma Jakab; Anne Julbe; Rupam Kataki; Andrea Kruse; Qi Li; Yukihiko Matsumura; Mridusmita Mishra; Vijayanand S. Moholkar; Robert W. Nachenius; Priyanka Ohri; Mitsumasa Osada; Ashok Pandey; Venkata K. Penmetsa; François Pinta; Aditya Prakash; Wolter Prins; Maria Puig-Arnavat; S.K. Puri; Yohan Richardson; Frederik Ronsse; Ruprekha Saikia; Osamu Sato; Ulises Sedran; Masayuki Shirai; Rawel Singh; Philip H. Steele; Maria-Magdalena Titirici; Aritomo Yamaguchi. 2015. "Contributors." Recent Advances in Thermo-Chemical Conversion of Biomass , no. : 1.
Maria Puig-Arnavat; Joan Carles Bruno. Artificial Neural Networks for Thermochemical Conversion of Biomass. Recent Advances in Thermo-Chemical Conversion of Biomass 2015, 133 -156.
AMA StyleMaria Puig-Arnavat, Joan Carles Bruno. Artificial Neural Networks for Thermochemical Conversion of Biomass. Recent Advances in Thermo-Chemical Conversion of Biomass. 2015; ():133-156.
Chicago/Turabian StyleMaria Puig-Arnavat; Joan Carles Bruno. 2015. "Artificial Neural Networks for Thermochemical Conversion of Biomass." Recent Advances in Thermo-Chemical Conversion of Biomass , no. : 133-156.
10.1016/j.applthermaleng.2014.06.019Up to now, the use of ammonia/water absorption cycles has been mainly limited to the production of refrigeration or air conditioning but due to the relatively high generator pressure some authors have proposed the integration in parallel of an expander to produce cooling and power simultaneously. This feature could provide many benefits in the future such as the use of solar thermal energy to partially cover the heating, cooling and electricity demand of a building. In the other hand the life cycle cost of the absorption system is improved because of the increase in the number of running hours in periods in which there is no demand for cooling but the demand for electrical power is still important. This paper shows a new combined absorption system using a scroll expander and three different working fluids using ammonia as refrigerant: ammonia/water, ammonia/lithium nitrate and ammonia/sodium thiocyanate. The scroll expander performance maps were obtained experimentally and modeled to predict the power production, rotational speed and exhaust temperature of the expander and included in the complete absorption cycle model build using Engineering Equation Solver (EES) Software. This system produces different amounts of cooling and power at the desired power/cooling ratio to cover varying demand profiles
Luis Carlos Mendoza; Dereje Sendeku Ayou; Joaquín Navarro-Esbrí; Joan Carles Bruno; Alberto Coronas. Small capacity absorption systems for cooling and power with a scroll expander and ammonia based working fluids. Applied Thermal Engineering 2014, 72, 258 -265.
AMA StyleLuis Carlos Mendoza, Dereje Sendeku Ayou, Joaquín Navarro-Esbrí, Joan Carles Bruno, Alberto Coronas. Small capacity absorption systems for cooling and power with a scroll expander and ammonia based working fluids. Applied Thermal Engineering. 2014; 72 (2):258-265.
Chicago/Turabian StyleLuis Carlos Mendoza; Dereje Sendeku Ayou; Joaquín Navarro-Esbrí; Joan Carles Bruno; Alberto Coronas. 2014. "Small capacity absorption systems for cooling and power with a scroll expander and ammonia based working fluids." Applied Thermal Engineering 72, no. 2: 258-265.
This paper presents the experimental characterization and modeling of a scroll expander. The expander used here is a scroll compressor modified to work as an expander. It is characterized in two experimental setups using air and ammonia as working fluids. The paper studies how the main operating variables (supply pressure and temperature, pressure ratio, rotational speed and lubrication) influence the performance of the scroll expander. A semi-empirical model is proposed to determine the scroll expander performance. This model uses some semi-empirical parameters (such as built-in volume ratio, leakage area and mechanical losses), obtained through experimentation, to calculate the mechanical power, supply mass flow rate and exhaust temperature. Using this semi-empirical model, the deviations in the calculated mechanical power, exhaust temperature and supply mass flow rate are ±9%, ±4 K and ±5% Hz
Luis Carlos Mendoza; Joaquín Navarro-Esbrí; Joan Carles Bruno; Vincent Lemort; Alberto Coronas. Characterization and modeling of a scroll expander with air and ammonia as working fluid. Applied Thermal Engineering 2014, 70, 630 -640.
AMA StyleLuis Carlos Mendoza, Joaquín Navarro-Esbrí, Joan Carles Bruno, Vincent Lemort, Alberto Coronas. Characterization and modeling of a scroll expander with air and ammonia as working fluid. Applied Thermal Engineering. 2014; 70 (1):630-640.
Chicago/Turabian StyleLuis Carlos Mendoza; Joaquín Navarro-Esbrí; Joan Carles Bruno; Vincent Lemort; Alberto Coronas. 2014. "Characterization and modeling of a scroll expander with air and ammonia as working fluid." Applied Thermal Engineering 70, no. 1: 630-640.
10.1016/j.enconman.2014.04.077A detailed thermodynamic performance analysis of a single-stage absorption heat transformer and double absorption heat transformer cycles using new working pairs composed of ionic liquids (1-ethyl-3-methylimidazolium tetrafluoroborate ([emim][BF4]) and 1-butyl-3-methylimidazolium tetrafluoroborate ([bmim][BF4])) as absorbent and 2,2,2-trifluoroethanol (TFE) as refrigerant has been studied. Several performance indicators were used to evaluate and compare the performance of the cycles using the TFE + [emim][BF4] and TFE + [bmim][BF4] working pairs with the conventional H2O + LiBr and organic TFE + TEGDME working pairs. The obtained results show that the ionic liquid based working pairs are suitable candidates to replace the conventional H2O + LiBr working pairs in order to avoid the disadvantages associated with it mainly crystallization and corrosion and also they perform better (higher gross temperature lift) than TFE + TEGDME working pair at several operating conditions considered in this work
Dereje S. Ayou; Moisés R. Currás; Daniel Salavera; Josefa García; Joan C. Bruno; Alberto Coronas. Performance analysis of absorption heat transformer cycles using ionic liquids based on imidazolium cation as absorbents with 2,2,2-trifluoroethanol as refrigerant. Energy Conversion and Management 2014, 84, 512 -523.
AMA StyleDereje S. Ayou, Moisés R. Currás, Daniel Salavera, Josefa García, Joan C. Bruno, Alberto Coronas. Performance analysis of absorption heat transformer cycles using ionic liquids based on imidazolium cation as absorbents with 2,2,2-trifluoroethanol as refrigerant. Energy Conversion and Management. 2014; 84 ():512-523.
Chicago/Turabian StyleDereje S. Ayou; Moisés R. Currás; Daniel Salavera; Josefa García; Joan C. Bruno; Alberto Coronas. 2014. "Performance analysis of absorption heat transformer cycles using ionic liquids based on imidazolium cation as absorbents with 2,2,2-trifluoroethanol as refrigerant." Energy Conversion and Management 84, no. : 512-523.
Jesús López-Villada; Dereje Sendeku Ayou; Joan Carles Bruno; Alberto Coronas. Modelling, simulation and analysis of solar absorption power-cooling systems. International Journal of Refrigeration 2014, 39, 125 -136.
AMA StyleJesús López-Villada, Dereje Sendeku Ayou, Joan Carles Bruno, Alberto Coronas. Modelling, simulation and analysis of solar absorption power-cooling systems. International Journal of Refrigeration. 2014; 39 ():125-136.
Chicago/Turabian StyleJesús López-Villada; Dereje Sendeku Ayou; Joan Carles Bruno; Alberto Coronas. 2014. "Modelling, simulation and analysis of solar absorption power-cooling systems." International Journal of Refrigeration 39, no. : 125-136.
Maria Puig Arnavat; Joan Carles Bruno; Alberto Coronas. Modeling of trigeneration configurations based on biomass gasification and comparison of performance. Applied Energy 2014, 114, 845 -856.
AMA StyleMaria Puig Arnavat, Joan Carles Bruno, Alberto Coronas. Modeling of trigeneration configurations based on biomass gasification and comparison of performance. Applied Energy. 2014; 114 ():845-856.
Chicago/Turabian StyleMaria Puig Arnavat; Joan Carles Bruno; Alberto Coronas. 2014. "Modeling of trigeneration configurations based on biomass gasification and comparison of performance." Applied Energy 114, no. : 845-856.
The association of concentrated solar energy and biomass gasification has often been suggested as an interesting alternative to conventional autothermal processes where a significant portion of the biomass has to be used for heat generation to drive endothermic reactions. It is a clean process able to produce high quality synthesis gas with a higher output per unit of feedstock and that allows for the chemical storage of solar energy in the form of a readily transportable fuel, among other advantages. The present paper describes the latest advances in solar thermochemical reactors for gasification of carbonaceous feedstocks. This work is categorized in this paper into patents and research/journal papers.
Maria Puig Arnavat; Eman Tora; Joan Carles Bruno; Alberto Coronas. State of the art on reactor designs for solar gasification of carbonaceous feedstock. Solar Energy 2013, 97, 67 -84.
AMA StyleMaria Puig Arnavat, Eman Tora, Joan Carles Bruno, Alberto Coronas. State of the art on reactor designs for solar gasification of carbonaceous feedstock. Solar Energy. 2013; 97 ():67-84.
Chicago/Turabian StyleMaria Puig Arnavat; Eman Tora; Joan Carles Bruno; Alberto Coronas. 2013. "State of the art on reactor designs for solar gasification of carbonaceous feedstock." Solar Energy 97, no. : 67-84.