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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en

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14

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Sustainable Production and Consumption, Volume 33, pp. 298-311

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.

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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

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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