Systematic Search of Suitable Metal–Organic Frameworks for Thermal Energy-Storage Applications with Low Global Warming Potential Refrigerants

Edder J García,Lourdes F Vega,Daniel Bahamon

doi:10.1021/acssuschemeng.0c07797

Abstract

Refrigeration processes based on physical adsorption are promising candidates for replacing high energy-intensive vapor compression cycles. Such adsorption-based refrigeration cycles facilitate the...

Highlights

Due to global warming and boost of wealth in tropical regions, the demand for refrigeration and air-conditioning is likely to increase in the upcoming years,[1] a process that already accounts for around 17% of the global electricity consumption.[2]
A comparison over a wider range of pressures for the adsorption isotherms of R134a on Ni-metal−organic frameworks (MOFs)-74 and Cr-MIL-101 is provided in Figure S1 in the Supporting Information
Several topology families were chosen for their potential use in cold thermal energystorage (CTES) and TES units, including M-MOF-74, IRMOFs, MILs, COFs, NUs, and ZIFs

Summary

Introduction

Due to global warming and boost of wealth in tropical regions, the demand for refrigeration and air-conditioning is likely to increase in the upcoming years,[1] a process that already accounts for around 17% of the global electricity consumption.[2]. The adsorptive process enables us to replace mechanical compressors in vapor−compression cycles, reducing energy consumption. Adsorption refrigeration facilitates the use of renewable energy sources, for example, solar, wind, or tidal power,[3,5] which are expected to increase in the near future.[6] Adsorption refrigeration can be used as cold thermal energystorage (CTES) and TES units,[7] accumulating exceeding cooling or heating capacity, which can be used when needed. Mathematical models have already shown that thermal storage is a crucial factor in meeting global cooling demand using solar power.[1] Units producing and storing heating and cooling capacity are commonly referred as “hybrid” systems.[4,8−10] Probably, the most popular application of such hybrid systems is in adsorption chillers

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