Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity

Heat-driven coolers provide a reliable and environmentally benign alternative to traditional electrically powered chillers. Their main advantage is that they can be driven using low enthalpy heat sources. A solar system is installed at the school of Mechanical Engineering of National Technical Unive...

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Main Authors: M.T. Nitsas, E.G. Papoutsis, I.P. Koronaki
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/13/22/5931
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author M.T. Nitsas
E.G. Papoutsis
I.P. Koronaki
author_facet M.T. Nitsas
E.G. Papoutsis
I.P. Koronaki
author_sort M.T. Nitsas
collection DOAJ
description Heat-driven coolers provide a reliable and environmentally benign alternative to traditional electrically powered chillers. Their main advantage is that they can be driven using low enthalpy heat sources. A solar system is installed at the school of Mechanical Engineering of National Technical University of Athens in order to examine the potential of thermal storage and solar cooling under Athens climatic conditions. The cooling effect is produced using a dual bed, single stage, zeolite/water adsorption chiller with cooling capacity of 10 kW at its nominal conditions of operation. Both vacuum tube collectors and hybrid photovoltaic thermal collectors are installed in order to supply the system with heat. The system is evaluated in terms of solar collectors’ useful energy production, heat stored in the intermediate buffer and cooling system’s performance. It is observed that the cooling system operates satisfactorily under Athens climatic conditions achieving a maximum cooling capacity of 3.7 kW and an average COP around 0.5.
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spelling doaj.art-c77b6e46a59e4578a4e6eec584ff8fff2023-11-20T20:53:35ZengMDPI AGEnergies1996-10732020-11-011322593110.3390/en13225931Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling CapacityM.T. Nitsas0E.G. Papoutsis1I.P. Koronaki2Laboratory of Applied Thermodynamics, School of Mechanical Engineering, Thermal Engineering Section, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, GreeceLaboratory of Applied Thermodynamics, School of Mechanical Engineering, Thermal Engineering Section, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, GreeceLaboratory of Applied Thermodynamics, School of Mechanical Engineering, Thermal Engineering Section, National Technical University of Athens, Heroon Polytechniou 9, Zografou Campus, 15780 Athens, GreeceHeat-driven coolers provide a reliable and environmentally benign alternative to traditional electrically powered chillers. Their main advantage is that they can be driven using low enthalpy heat sources. A solar system is installed at the school of Mechanical Engineering of National Technical University of Athens in order to examine the potential of thermal storage and solar cooling under Athens climatic conditions. The cooling effect is produced using a dual bed, single stage, zeolite/water adsorption chiller with cooling capacity of 10 kW at its nominal conditions of operation. Both vacuum tube collectors and hybrid photovoltaic thermal collectors are installed in order to supply the system with heat. The system is evaluated in terms of solar collectors’ useful energy production, heat stored in the intermediate buffer and cooling system’s performance. It is observed that the cooling system operates satisfactorily under Athens climatic conditions achieving a maximum cooling capacity of 3.7 kW and an average COP around 0.5.https://www.mdpi.com/1996-1073/13/22/5931solar coolingadsorption chillerthermal storagePVT collectors
spellingShingle M.T. Nitsas
E.G. Papoutsis
I.P. Koronaki
Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity
Energies
solar cooling
adsorption chiller
thermal storage
PVT collectors
title Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity
title_full Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity
title_fullStr Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity
title_full_unstemmed Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity
title_short Experimental Performance Evaluation of an Integrated Solar-Driven Adsorption System in Terms of Thermal Storage and Cooling Capacity
title_sort experimental performance evaluation of an integrated solar driven adsorption system in terms of thermal storage and cooling capacity
topic solar cooling
adsorption chiller
thermal storage
PVT collectors
url https://www.mdpi.com/1996-1073/13/22/5931
work_keys_str_mv AT mtnitsas experimentalperformanceevaluationofanintegratedsolardrivenadsorptionsystemintermsofthermalstorageandcoolingcapacity
AT egpapoutsis experimentalperformanceevaluationofanintegratedsolardrivenadsorptionsystemintermsofthermalstorageandcoolingcapacity
AT ipkoronaki experimentalperformanceevaluationofanintegratedsolardrivenadsorptionsystemintermsofthermalstorageandcoolingcapacity