Research on Adsorption and Energy Storage of Refrigerants R1234yf and R32 in MOF-74

Zhang Cheng; Yan Xiao; Peng Shinian; Yuan Dewen; Liu Wenxing

doi:10.13832/j.jnpe.2022.03.0001

Volume 43 Issue 3

Jun. 2022

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Zhang Cheng, Yan Xiao, Peng Shinian, Yuan Dewen, Liu Wenxing. Research on Adsorption and Energy Storage of Refrigerants R1234yf and R32 in MOF-74[J]. Nuclear Power Engineering, 2022, 43(3): 1-6. doi: 10.13832/j.jnpe.2022.03.0001

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Zhang Cheng, Yan Xiao, Peng Shinian, Yuan Dewen, Liu Wenxing. Research on Adsorption and Energy Storage of Refrigerants R1234yf and R32 in MOF-74[J]. Nuclear Power Engineering, 2022, 43(3): 1-6. doi: 10.13832/j.jnpe.2022.03.0001

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Research on Adsorption and Energy Storage of Refrigerants R1234yf and R32 in MOF-74

doi: 10.13832/j.jnpe.2022.03.0001

CNNC Key Laboratory on Nuclear Reactor Thermal Hydraulics Technology, Nuclear Power Institute of China, Chengdu, 610213, China

Received Date: 2021-05-10
Rev Recd Date: 2021-07-14
Publish Date: 2022-06-07

Abstract

Abstract

The heat absorption of circulating working medium can be improved by using the mutual transformation of thermal energy and surface energy in the process of adsorption and separation of fluid molecules on the solid surface of nano-porous materials. In this paper, molecular simulation (molecular dynamics and Grand Canonical Monte Carlo) and adsorption theory are used to study the adsorption and energy storage of R1234yf and R32 in MOF-74. In the adsorption of pure working medium, it is found that the adsorption capacity of R32 in MOF is higher than that of R1234yf. The adsorption capacity of refrigerant in Zn-MOF-74 is larger than that in Co-MOF-74, and the pressure required for R1234yf to reach saturation adsorption is lower than that required for R32 to reach saturation in the corresponding adsorbent. In the mixed working medium adsorption, the adsorption capacity of R1234yf is higher than that of R32. With the increase of temperature, the adsorption capacity of R1234yf shows a gradually increasing trend, while that of R32 gradually decreases. The energy storage calculation shows that the higher the mass fraction of M-MOF-74 (M = Co, Zn) particles, the more heat energy needed to be absorbed for the phase transition of the mixed working medium.
- R1234yf,
- R32,
- MOF-74,
- Adsorption,
- Energy storage,
- Molecular simulation

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References(27)

References

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