Exergo-economic analysis for screening of metal hydride pairs for thermochemical energy storage for solar baking system
- Release Time:2025-04-30
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Date:
2025-04-30Title of Paper:
Exergo-economic analysis for screening of metal hydride pairs for thermochemical energy storage for solar baking systemJournal:
Thermal Science and Engineering ProgressSummary:
The novelty of this research work is the exergo-economic analysis (including the cost of exergy destruction and exergy loss) of metal hydride based thermal energy storage system coupled with a solar bakery unit for the screening of metal hydride pairs (Case 1: pure MgH2/LaNi5 & Case 2: V2O5 doped MgH2/LaNi5) for thermo chemical energy storage. Firstly, a numerical simulation is performed by using COMSOL Multiphysics 5.3a software. Secondly, an economic and exergo-economic model is developed to calculate the annual levelized cost of the thermal energy storage system. The life-cycle economic assessment findings indicate that the Levelized thermal energy storage cost of the pure MgH2 based system (32.28 $ /kWhth) is 8.2 times higher than that of the V2O5 doped MgH2 system (3.954 $/kWhth). Moreover, an 87.75% decrease in cost was observed in Case 2 (V2O5 doped MgH2). Furthermore, Case 2 (V2O5 doped MgH2) can save 92.58 % of hydrogenation reaction time as compared to Case 1 (Pure MgH2). Ultimately, the selection of V2O5 based MgH2 as a thermal heat-storing me dium is then assessed as a better option for the MHTES for the solar bakery unit (SBU). The findings of this research provide a clear insight into the mechanism of cost formation in the system.Co-author:
Iqra Ayub, Muhammad Salman Nasir, Yang Liu, Anjum Munir, Zhen Wu, Fusheng Yang, Zaoxiao ZhangVolume:
30（）Page Number:
101271Translation or Not:
NoDate of Publication:
2022-03-09