Performance comparative study of a solar-powered adsorption refrigerator with a CPC collector/adsorbent bed

Wang, Yun Feng; Li, Ming; Du, Wenping; Yu, Qiongfen; Ji, Xu; Zhang, Fujun

doi:10.1016/j.enconman.2018.07.080

Cited by 21 publications

(4 citation statements)

References 25 publications

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“…The spotlighting device was proposed to promote the power density of solar energy (Rabl et al, 1978). A composite parabolic concentrator (CPC) combined with a fin-tube adsorber was applied to the adsorption refrigeration, in which the temperature of the adsorption bed rose from 26 to 124 °C in 120 min (Wang et al, 2018). Both numerical and experimental studies show that fins enhance the performance of the CPC adsorption bed (Zhao et al, 2019).…”

Section: Solar Energymentioning

confidence: 99%

Viewpoints on the Refrigeration by Renewable Energy

Huo

2022

Front. Energy Res.

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Section: Solar Energymentioning

confidence: 99%

Viewpoints on the Refrigeration by Renewable Energy

Huo

2022

Front. Energy Res.

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“…Several alternative refrigerants are available in the market. Several people have suggested natural refrigerants to replace ODS, namely, ammonia, propane, and CO2 [9].…”

Section: Evaporation Process (4-1)mentioning

confidence: 99%

Effect of Hydrogen (g) Mixture with Refrigerant on the Pressure of Cooling Machine Components

Praswanto,

Djiwo,

Asroni

et al. 2021

j. of sci. and appl.eng.

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Refrigerant is substance or chemical composition which alternately compressed and condensed into a liquid and then expanded into vapor or gas when pumped through the cooling system. Alternative refrigerants are needed to replace full the halogenated refrigerants which are believed to contribute to ozone depletion in the atmosphere. In the last decade, many research and development of studies on the synthesis and characterization alternative refrigerants have been carried out. With replace a limited Ozone Depleting Substance (ODS) with any alternative can involve major changes in the design of various components such as insulation, lubricants, heat exchangers and motors. The purpose of this research is to determine the effect of hydrogen mixture with refrigerant R134a on the pressure of each component. This research used an experimental method on a direct cooling device. The data which obtained from the experimental results on this cooling machine then will process to determine the pressure that occurs in each component of the cooling machine. Based on the results of this research, the effect of the hydrogen mixture on refrigerant R134a on the performance of the cooling machine is the differences density of each mixture ratio. If more of hydrogen additions there, the density of result mixture also getting smaller. This will affect the pressure that occurs in the compressor because the relationship between density and pressure is directly proportional. The conclusion is the refrigerant from a mixture of hydrogen gas and Freon R134a is suitable for use as a refrigerant for air condition. Because at 60 minutes, the mixture ratio of 85%:15% can reduce the water temperature slowly until 20.2ÂºC. The slow cooling is felt bad when applied on the food preservation.Â

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“…Recently, in an experimental study to improve the performance, Hamrahi et al 13 investigated the effect of activated nano carbon as a part of the absorbent substrate on the performance of the solar surface absorption chiller. Wang et al 14 compared the performance of the solar surface absorption refrigerator with the composite parabolic collector. Fader 15 also introduced a new process to improve the performance of a continuous surface absorption cooling system.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic analysis of absorption refrigeration cycles by parabolic trough collectors

Albaker,

Carbajal,

Athó

et al. 2023

Physics of Fluids

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The purpose of this study is to numerically investigate the performance of a solar physical surface absorption cooling system, in which activated carbon/methanol is used as a working pair, which is placed inside a parabolic-shaped solar collector. The governing mathematical model of this issue is based on the equations of conservation of mass, conservation of energy, and thermodynamics of the physical surface absorption process. The equations are discretized using the fully implicit finite difference method, and the Fortran computer program was simulated. A comparison with the results of previous laboratory and numerical studies validated this model. At each point in the bed, the temperature, pressure, and mass of the refrigerant absorbed during the physical surface absorption/discharge process were calculated. In addition, the effects of the bed diameter, amount of solar radiation, source temperature, temperature, and pressure of the evaporator and condenser were investigated on the solar performance coefficient and the specific cooling power of the system. According to the built laboratory model and the working conditions of the system, the solar performance coefficient and the specific cooling capacity of the system are equal to 0.12 and 45.6 W/kg, respectively.

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Performance comparative study of a solar-powered adsorption refrigerator with a CPC collector/adsorbent bed

Cited by 21 publications

References 25 publications

Viewpoints on the Refrigeration by Renewable Energy

Viewpoints on the Refrigeration by Renewable Energy

Effect of Hydrogen (g) Mixture with Refrigerant on the Pressure of Cooling Machine Components

Thermodynamic analysis of absorption refrigeration cycles by parabolic trough collectors

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