Sorption cryogenic cooling: Fundamentals, progress, and outlook

Cao, Haishan; Liu, Biqiang; Qin, Lingxiao

doi:10.1016/j.applthermaleng.2022.118680

Cited by 7 publications

(3 citation statements)

References 84 publications

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“…[78] When the temperature of the sorbent reaches the desorption temperature with constant pressure, the sorbed water in the sorbent can be released. [79] The energy required for desorption of water vapor from the sorbent is equal to the total energy demand in the heating and desorption process (Figure 3a, right). [80] Owing to the vapor pressure differences between water and sorbents, the evaporation can take place even when the water temperature is below the ambient, thus allowing CSD-LWEC to achieve sub-ambient temperature cooling.…”

Section: Overview Of Sorption-driven Liquid Water Evaporative Coolingmentioning

confidence: 99%

Section: Sorption‐driven Evaporative Coolingmentioning

confidence: 99%

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Advanced Material Design and Engineering for Water‐Based Evaporative Cooling

Wang

Shi

et al. 2023

Advanced Materials

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Water‐based evaporative cooling is emerging as a promising technology to provide sustainable and low‐cost cold to alleviate the rising global cooling demand. Given the significant and fast progress made in recent years, this review aims to provide a timely overview on the state‐of‐the‐art material design and engineering in water‐based evaporative cooling. The fundamental mechanisms and major components of three water‐based evaporative cooling processes are introduced, including direct evaporative cooling, cyclic sorption‐driven liquid water evaporative cooling (CSD‐LWEC), and atmospheric water harvesting‐based evaporative cooling (AWH‐EC). The distinctive requirements on the sorbent materials in CSD‐LWEC and AWH‐EC are highlighted, which helps synthesize the literature information on the advanced material design and engineering for the purpose of improving cooling performance. The challenges and future outlooks on further improving the water‐based evaporative cooling performance are also provided.

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Section: Overview Of Sorption-driven Liquid Water Evaporative Coolingmentioning

confidence: 99%

Section: Sorption‐driven Evaporative Coolingmentioning

confidence: 99%

Advanced Material Design and Engineering for Water‐Based Evaporative Cooling

Wang

Shi

et al. 2023

Advanced Materials

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“…Toth parameter equal to the adsorption enthalpy at zero loading [J mol −1 ] q input input power [J g Joule-Thomson (JT) sorption cryocoolers have great application potential for vibration-sensitive instruments due to their characteristics of no vibration and electromagnetic interference, high reliability and long life (Cao et al, 2022). As the key component of the JT sorption cryocooler, the sorption compressor achieves pressure fluctuations through the cyclic adsorption and desorption of the working gas by the sorbent.…”

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confidence: 99%

Adsorption characteristics of nitrogen on activated carbons for sorption compressors

Liu

Cao

2023

Preprint

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Vibration-free sorption compressors are thermally driven and can be used to supply a pressure wave to a cryocooler. The adsorption isotherms and kinetics data of nitrogen on activated carbon is the important input for sorption compressors for cryocoolers operating at liquid nitrogen temperature. However, there is little research on the adsorption capacity and kinetics of nitrogen on activated carbon for sorption compressor, which requires the adsorption measurement at extreme conditions, such as high temperatures and high pressures. This study presents the adsorption isotherm and kinetics of two types of activated carbon, Norit RB4 and Chemviron AP4-60, at temperature from 223.15 K to 723.15 K and pressure up to 10 MPa using a volumetric adsorption analyzer. Based on the measured data, three adsorption isotherm models, including dual-site Langmuir, Sips and Toth isotherm model, are utilized to fit the total adsorption amount. The results reveals that the dual-site Langmuir isotherm model is the best proper model for fitting the total adsorption amount. The isosteric heat of adsorption is calculated and the kinetics data is fitted using Crank model. Through global fitting, the effective mass transfer coefficients of RB4 and AP4-60 are given as 0.0297-1 and 0.0303-1, respectively. These results will be helpful for high efficiency sorption compressor development.

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Temperature stability of a Joule–Thomson microcooler operating with pure and mixed gases

Cao,

Wang,

et al. 2024

Applied Thermal Engineering

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Sorption cryogenic cooling: Fundamentals, progress, and outlook

Cited by 7 publications

References 84 publications

Advanced Material Design and Engineering for Water‐Based Evaporative Cooling

Advanced Material Design and Engineering for Water‐Based Evaporative Cooling

Adsorption characteristics of nitrogen on activated carbons for sorption compressors

Temperature stability of a Joule–Thomson microcooler operating with pure and mixed gases

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