Round-the-clock performance of solar thermoelectric wall with phase change material in subtropical climate: Critical analysis and parametric investigations

Bing-Hua Hong, Xiao-Yan Huang, Jian-Wei He, Yang Cai, Wei-Wei Wang and Fu-Yun Zhao

Energy, 2023, vol. 272, issue C

Abstract: The published literature focuses on the electrical performance of thermoelectric envelope and scarcely investigates its impact on indoor cooling and heating loads, which cannot comprehensively reflect the energy saving potential of thermoelectric envelope. In this work, a solar thermoelectric wall with phase change material (STEW-PCM) is developed to investigate its potential for power generation round-the-clock and its influence on the indoor thermal environment in the subtropical climate. Sensitivity analyses have been conducted to characterize the matching relationship between PCM parameters (melting temperature, latent heat and thickness) and the proposed system. Meanwhile, the energy saving potential of STEW-PCM system is forecasted in terms of annual electrical energy, environmental benefit and cooling load. The results show that STEW-PCM system has the potential of power generation round-the-clock judging from the temperature and output voltage. The annual electrical energy of STEW-PCM system can reach 1740.66 kJ/(m2·year), corresponding to Levelized Cost of Electricity (LCOE) of 35.37 c$/kJ and CO2 saving cost of 6.74 $/(m2·year). The cooling load can be effectively reduced by more than 25% with STEW-PCM system in the subtropical climate. This paper will be helpful to understand the dynamics characteristics of a solar thermoelectric wall with PCM for harvesting energy from environment.

Keywords: Solar thermoelectric wall; Phase change material; Power generation round-the-clock; Energy saving potential; Dynamic characteristics (search for similar items in EconPapers)
Date: 2023
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:272:y:2023:i:c:s0360544223005224

DOI: 10.1016/j.energy.2023.127128

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