Thermo-ecological cost optimization of a solar thermal and photovoltaic integrated energy system considering energy level

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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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Date
2022-09
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Mcode
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Language
en
Pages
14
298-311
Series
Sustainable Production and Consumption, Volume 33
Abstract
Integrating renewable resources into traditional tri-generation systems helps to reduce fossil fuel use and emissions. A solar thermal and photovoltaic assisted integrated energy system is proposed here using high- performance cooling approaches to provide cooling, heating, and electricity. To find the best system configurations with a focus on the ecological performance, the specific thermo-ecological cost of the energy products considering energy level is optimized employing the cumulative exergy consumption over the whole life-cycle. The results show that the ideal specific costs for cooling, heating and electricity demands are 8.699, 7.129, and 1.970 J/J, respectively. Compared to the method without the energy level consideration, the specific cost of the hybrid system is 0.47 J/J higher due to the lower energy level of water products. Moreover, the specific thermo-ecological cost of natural gas has higher impacts on the performance of hybrid system than the other parameters.
Description
Funding Information: This research has been supported by the National Natural Science Foundation of China (Grant No. 22109022 and 51736006 ) and the Fundamental Research Funds for the Central Universities (Grant No. 2242021k30028 ). Publisher Copyright: © 2022 Elsevier Ltd
Keywords
Cumulative exergy, Energy level, Equivalent pollutant emissions, Integrated energy system, Multi-objective optimization, Thermo-ecological assessment
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Citation
Xu , J , Wang , J , Chen , Y , Xu , Z & Lund , P D 2022 , ' Thermo-ecological cost optimization of a solar thermal and photovoltaic integrated energy system considering energy level ' , Sustainable Production and Consumption , vol. 33 , pp. 298-311 . https://doi.org/10.1016/j.spc.2022.07.011