Performance prediction of adsorbent in an adsorption refrigeration system based on variable temperature and constant pressure experiment and dynamic model

Liu, Zhongbao; Li, Shijie; Zhao, Banghua; Qi, Xin; Sun, Han

doi:10.1016/j.ijrefrig.2021.06.033

Cited by 2 publications

(2 citation statements)

References 25 publications

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“…The specific process of model calibration and verification was in another paper of our research group. [18] The coefficient of performance of three different materials increases with the increase of evaporation temperature and decrease of adsorption temperature. COP can reach about 0.7 within the scope of refrigeration conditions.…”

Section: Figure 4 Single Bed Finned Tube Adsorption Refrigeration Sys...mentioning

confidence: 99%

“…The results showed the addition of calcium chloride increases the range of suitable cooling conditions for MIL-101(Cr), when the desorption temperature is 90°C, the minimum evaporation temperatures of MIL-101 (Cr) and MIL-101 (Cr)/CaCl 2 -20% are 12 °C and 5°C, and the maximum adsorption temperatures are 31 °C and 38°C, respectively. [18] And V. Baiju et al considered the adsorbent mass is 45 kg with a shifting duration of 20 sec, the inlet chilled water temperature in the evaporator, temperature of cooling water and hot water temperature of the adsorbent bed and its effect on systems coefficient of performance, refrigeration effect and specific cooling power have been studied and presented. [19] According to the literature review, As for MOFs, the preparation period for preparing a large number of materials is relatively long.…”

Section: Introductionmentioning

confidence: 99%

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Numerical study on the performance of adsorption refrigeration system with finned bed structure paired with MOF-water as working fluid

Liu

Zhao

et al. 2023

THERM SCI

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In this paper, A single-bed finned tube adsorption refrigeration system model was established to compare the adsorption characteristics of three metal organic framework materials(MIL-101(Cr), MIL-101(Cr)/CaCl2-10%, MIL-101(Cr)/ CaCl2-20%).The change of material properties under different thickness/length/number of fins was characterized, and the most suitable adsorption bed structure for different materials was obtained.Theresults show that the number of fins haslittle effect on the Coefficiency of Performanceand Specific cooling powerof the material in the system. Choosing thinner fins can improve the performance coefficient of the system.With the increase of fin height, the Coefficiency of Performanceshowed a trend of increasingfirstand then decreasing. The three materials (MIL-101(Cr), MIL-101(Cr)/CaCl2-10%, MIL-101(Cr)/CaCl2-20%) obtained the highest Coefficiency of Performancewhen the fin heights were 50mm, 60mm, and 70mm, respectively. The maximum Specific cooling powerwas obtained when the fin heights were 20mm, 60mm, and 70mm, which were 21.7W/kg, 90.1W/kg, and 174.5W/kg, respectively. The height of the fin has a great influence on the performance of the system. When designing the adsorption bed, the appropriate fin height should be selected for the specific adsorbent.

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Section: Figure 4 Single Bed Finned Tube Adsorption Refrigeration Sys...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Numerical study on the performance of adsorption refrigeration system with finned bed structure paired with MOF-water as working fluid

Liu

Zhao

et al. 2023

THERM SCI

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An Overview of Developments In Silica Gel Matrix Composite Sorbents for Adsorption Chillers with Desalination Function

et al. 2023

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Adsorption cooling technology is a promising alternative to replace conventional solutions. However, adsorption chillers still need to be improved in terms of performance parameters. One of the most important factors affecting their efficiency is the characteristics of the adsorbent, which should have the highest adsorption capacity and enable efficient heat transport in the bed. The objective of this paper is to present current developments in the field of composite sorbents with silica gel matrix as modern and very promising materials and then perform a detailed analysis of them. The paper summarises the methods of synthesis of composite sorbents and the current knowledge concerning these materials. The analysis focuses on a comparison of the available data, particular taking into account the types of matrixes, so that the analysis provides a clear and qualitative basis for further research. As a result of exploring the state of the art, this subject is found to be insufficiently described; therefore, these materials are comprehensively analysed in terms of their properties and the impact of their use on the COP (coefficient of performance) and SCP (specific cooling power) of adsorption chillers. Based on the analysis of the literature, the most promising directions for further research are also indicated.

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Performance prediction of adsorbent in an adsorption refrigeration system based on variable temperature and constant pressure experiment and dynamic model

Cited by 2 publications

References 25 publications

Numerical study on the performance of adsorption refrigeration system with finned bed structure paired with MOF-water as working fluid

Numerical study on the performance of adsorption refrigeration system with finned bed structure paired with MOF-water as working fluid

An Overview of Developments In Silica Gel Matrix Composite Sorbents for Adsorption Chillers with Desalination Function

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