Theoretical investigations on the cycle performance of a single-pressure diffusion absorption heat transformer with LiBr–H2O-R134a-TEGDME

Liu, Yilun; Luo, Jielin; Wang, Shikuan; Tang, Jingxuan; Xu, Xiaopan; Chen, Guangming

doi:10.1016/j.jclepro.2020.123303

Cited by 9 publications

(1 citation statement)

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“…Typical thermal energy storage materials can be generally classified into sensible heat materials, [ 4 ] phase change materials, [ 5 ] absorption working pairs, [ 6 ] and solid sorption working pairs. [ 7 ] Among them, solid sorption has the merits of relatively high thermal energy storage density and low heat loss during storage phase.…”

Section: Introductionmentioning

confidence: 99%

Metal–Organic Frameworks for Ammonia‐Based Thermal Energy Storage

Xia

et al. 2021

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/smll.202102689.Recently, the application of metal-organic frameworks (MOFs) in thermal energy storage has attracted increasing research interests. MOF-ammonia working pairs have been proposed for controlling/sensing the air quality, while no work has yet been reported on the immense potential of MOFs for thermal energy storage up till now. Herein, the feasibility of thermal energy storage using seven MOF-ammonia working pairs is experimentally assessed. From ammonia sorption stability and sorption thermodynamics results, it is found that MIL-101(Cr) exhibits both high ammonia sorption stability and the largest sorption capacity of ≈0.76 g g −1 . Compared with MIL-101(Cr)-water working pair, MIL-101(Cr)-ammonia working pair improves the sorption capacity by over three times with evaporation temperature lower than 8.4 °C. Due to stable ammonia sorption stability and negligible hysteresis, MIL-101(Cr) and ZIF-8(Zn) are tested at condensation/evaporation temperature of 30 °C/10 °C. The thermal energy storage density (reaching over 1200 kJ kg −1 ) and coefficient of performance of MIL-101(Cr)-based system are both higher than ZIF-8(Zn)-based one due to larger average isosteric enthalpy and cycle sorption capacity. This experimental work paves the way for developing the high efficient and stable thermal energy storage system with MOF-ammonia working pairs especially for critical conditions with low evaporation temperature and high condensation temperature.Research data are not shared.

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