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Performance evaluation of a metal organic frameworks based combined dehumidification and indirect evaporative cooling system in different climates.

Author(s) : ZAKERI SHAHVARI S., AHMADI KALKHORANI V. A., CLARK J. D.

Type of article: IJR article

Summary

Evaporative coolers, although more energy efficient than vapor-compression air conditioning systems, are not suitable candidates for humid climates due to their evaporation-based operating principle. Integration of indirect-evaporative coolers with a desiccant can solve this problem but desiccant systems still require a high-temperature energy source for regeneration of the sorbent. In this work we investigate the integration of selected Metal Organic Frameworks (MOFs) including CAU-23, CAU-10 and Co2Cl2(BTDD) as the sorbent in a combined desiccant wheel and indirect evaporative cooling system and compare the system's optimal regeneration temperature and coefficient of performance (COP) with a traditional silica gel-based system under a wide range of outdoor conditions. We validate a first principles model with experimental data and then use this model to investigate different MOF-based systems. Our results show that depending on the inlet conditions, MOF-based systems can have a COP of 2.7 to 6 times greater than a silica gel-based system, with an optimal regeneration temperature of 40 to 75 °C. This allows for the feasibility of using low-temperature heat sources as the primary energy source for the system.

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Pages: 186-197

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Details

  • Original title: Performance evaluation of a metal organic frameworks based combined dehumidification and indirect evaporative cooling system in different climates.
  • Record ID : 30029952
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 140
  • Publication date: 2022/08
  • DOI: http://dx.doi.org/10.1016/j.ijrefrig.2022.05.001
  • Document available for consultation in the library of the IIR headquarters only.

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