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Energetic and exergetic performance analyses of mobile thermochemical energy storage system employing industrial waste heat

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  • Nagamani, Gowrisetti
  • Naik, B. Kiran
  • Agarwal, Sumit

Abstract

With an expanding urban population and increasing energy consumption, the demand for air conditioning is projected to reach 45 % of total energy demand by 2050. Based on projections, there will be a massive demand for air conditioning purposes, and energy consumption for air conditioning will also increase. Mobile thermo-chemical energy storage (MTES) offers an alternative by utilizing waste heat from power plants for heating and cooling via sorption heat storage. MTES proves advantageous due to its portability and phase change material transport capability. This study focuses on an MTES system applied in District Energy Networks (DEN) for cooling application. An analytical model has been developed to evaluate the system performance by considering energy efficiency ratio, round-trip efficiency, coefficient of performance, energetic efficiency, exergy destruction rate, and exergetic coefficient of performance as the performance parameters. Results show that an average round-trip efficiency of 53 %, maximum COP of 1.74, and exergy efficiency of 46.7 % is obtained for the year 2022. Notably, the MTES truck achieves a 50 % exergy efficiency. This study contributes insights into efficient waste heat utilization for sustainable cooling solutions.

Suggested Citation

  • Nagamani, Gowrisetti & Naik, B. Kiran & Agarwal, Sumit, 2024. "Energetic and exergetic performance analyses of mobile thermochemical energy storage system employing industrial waste heat," Energy, Elsevier, vol. 288(C).
    • Handle: RePEc:eee:energy:v:288:y:2024:i:c:s0360544223031249
    DOI: 10.1016/j.energy.2023.129730
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