Investigation on Influence of Solar Radiation on Performance of Solar Adsorption Refrigeration System

This article conducts the research on the relationship between the solar radiation and the adsorption bed temperature, the adsorption bed pressure and the system performance, and obtains that the solar radiation indirectly influences the system refrigeration performance through influencing the adsorption bed temperature and adsorption bed pressure. And in a certain range, the bigger solar radiation is, the higher adsorption bed temperature is, the system refrigeration efficiency is higher, the maximum refrigeration efficiency is 0.122.

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The Impact of Condensing Pressure on the Performance of Solar Solid Adsorption Refrigeration System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1092-1093.109 ◽

2015 ◽

Vol 1092-1093 ◽

pp. 109-112

Author(s):

Xiang Bo Song ◽

Xu Ji ◽

Ming Li ◽

Jia Xing Liu ◽

Shao Lin Yin

Keyword(s):

Working Conditions ◽

System Performance ◽

Refrigeration System ◽

Adsorption Refrigeration ◽

Bed Temperature ◽

Temperature And Pressure ◽

Condensing Pressure ◽

The Impact

A new solar solid adsorption refrigeration system is established in this paper, and the variation relationship between the adsorbent bed temperature and pressure with time are analyzed, and the effects of adsorbent bed condensing pressure on the system performance is researched. Results show that, under the same working conditions, when the condensing pressure is 39 kPa, the daily ice-making capacity of system reach to 5.5 kg with the refrigerating capacity of 2.26 MJ; And when the condensing pressure is 63 kPa, the ice-making capacity of system is only for 3 kg with the refrigerating capacity of 1.48 MJ; The refrigerating capacity of the former is 1.5 times of the latter.

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Mathematical Analysis on a Special Adsorption Refrigeration System Suitable for Solar Energy System

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.953-954.119 ◽

2014 ◽

Vol 953-954 ◽

pp. 119-122

Author(s):

Yan Ling Liu ◽

Xue Zeng Shi ◽

Yuan Yu

Keyword(s):

System Performance ◽

Energy System ◽

Cooling Capacity ◽

Refrigeration System ◽

Adsorption Refrigeration ◽

Study Results ◽

Actual Use ◽

Working Principle ◽

Set Up ◽

New System

s. In this paper, a new adsorption refrigeration system is designed and calculated. In this system, there are two beds, two condensers and two evaporators. The working principle is explained and specified in this paper. And mathematical models are also set up and through calculation, the system performance is analyzed and evaluated.Theory study results demonstrate that the new system nearly has the same cooling capacity as conventional system and this kind of system can be adopted in actual use.

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Influential factors and optimization analysis of adsorption refrigeration system performance

AIP Advances ◽

10.1063/5.0026131 ◽

2020 ◽

Vol 10 (10) ◽

pp. 105315

Author(s):

Xueling Zhang ◽

Feifei Wang ◽

Xudong Lei ◽

Yanling Wang ◽

Qi Zhang ◽

...

Keyword(s):

System Performance ◽

Influential Factors ◽

Refrigeration System ◽

Adsorption Refrigeration ◽

Optimization Analysis

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Study on Solar Energy for Pre-Cooling Technology of Fruit and Vegetable

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.700.37 ◽

2014 ◽

Vol 700 ◽

pp. 37-41

Author(s):

A Min Ji ◽

Tian Tian ◽

Bo Ning Tang

Keyword(s):

Mathematical Model ◽

Activated Carbon ◽

Solar Energy ◽

System Performance ◽

Refrigeration System ◽

Adsorption Refrigeration ◽

Vacuum Tube ◽

Rate Versus ◽

Adsorption Temperature ◽

Cooling Technology

This paper discusses the importance of per-cooling vegetable and fruit, establishes a mathematical model of the solar adsorption refrigeration system collector bed. It applies activated carbon - methanol as working pairs, takes solar vacuum tube－water cooled collector bed for refrigerating, adsorption temperature and adsorption rate versus time are calculated , draw the corresponding curve figure. Analyses solar adsorption refrigeration system performance and puts forward the improvement direction.

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Influence of initial bed temperature on bed performance of an adsorption refrigeration system

Thermal Science ◽

10.2298/tsci160108254s ◽

2018 ◽

Vol 22 (6 Part A) ◽

pp. 2583-2595 ◽

Cited By ~ 1

Author(s):

Anirban Sur ◽

Randip Das ◽

Ramesh Sah

Keyword(s):

Activated Carbon ◽

Cycle Time ◽

Cooling System ◽

Cooling Capacity ◽

Heat Transfer Fluid ◽

Low Grade ◽

Refrigeration System ◽

Adsorption Refrigeration ◽

Bed Temperature ◽

Engineering Department

The study deals with the complete dynamic analysis (numerical and practical) of an existing adsorption refrigeration system. The adsorption refrigeration setup is available at Indian School of Mines (Dhanbad, India), Mechanical engineering department. The system operates with activated carbon (as an adsorbent) and methanol (as refrigerant).Numerical model is established base on energy equation of the heat transfer fluid (water) and transient heat and mass transfer equations of the adsorbent bed. The input temperature of heat source is 90?C, which is very low compared to other low-grade energy input refrigeration system. The thermo-physical properties of an adsorptive cooling system (using activated carbon?methanol pair) are considered in this model. In this analysis influence of initial bed temperature (T1) on the bed performances are analysed mathematically and experimentally. The simulation and practical results of this system show that the cycle time decreases with increase in initial bed temperature and the minimum cycle time is 10.74 hours (884 minutes for practical cycle) for initial bed temperature of 40?C. Maximum system COP and specific cooling capacity are 0.436 and 94.63 kJ/kg of adsorbent under a condenser and evaporator temperatures of 35?C and 5?C, respectively. This analysis will help to make a comparison between simulated and experimental results of a granular bed adsorption refrigeration system and also to meet positive cooling needs in off-grid electricity regions.

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Research on Solar Adsorption Refrigeration System

Distributed Generation & Alternative Energy Journal ◽

10.13052/dgaej2156-3306.3721 ◽

2021 ◽

Author(s):

Di Jiang ◽

Dongya Tang

Keyword(s):

Surface Water ◽

Solar Radiation ◽

Radiation Intensity ◽

Water Source ◽

Refrigeration System ◽

Adsorption Refrigeration ◽

Solar Absorption ◽

Solar Radiation Intensity ◽

Greenhouse Effects ◽

Absorption Refrigeration System

In order to achieve solar adsorption refrigeration, this paper studies the surface water source solar absorption refrigeration system combined with surface water source cooling and solar absorbent refrigeration techniques: the solar radiation intensity is adjusted by changing the distance between iodine tungsten lamps and solar cold tubes. The results show that the entire cycle has a range of solar radiation intensity of 400 to 1000 W/m2, and the indoor ambient temperature ranges from 19 to 25∘C, and the humidity is maintained around 40%. The highest temperature in the solar cold tube adsorption bed is 12∘C; during the adsorption process, the temperature drops to about 20∘C; the solar cold tube is 160 kJ in one cycle of the solar cold tube, and the cooling coefficient is about 0.15. Conclusion: solar cold tubes can effectively utilize solar refrigeration, it is a refrigeration method for environmentally friendly, no greenhouse effects and ozone destruction, which has potential application value and has energy saving and environmental protection.

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