Development and comparison of two-bed silica gel–water adsorption chillers driven by low-grade heat source

2009 ◽  
Vol 48 (5) ◽  
pp. 1017-1025 ◽  
Author(s):  
Z.Z. Xia ◽  
R.Z. Wang ◽  
D.C. Wang ◽  
Y.L. Liu ◽  
J.Y. Wu ◽  
...  
Keyword(s):  
Heat Source ◽  
Silica Gel ◽  
Water Adsorption ◽  
Low Grade ◽  
Low Grade Heat

scholarly journals Performance Testing and Analysis of Silica Gel-Water Adsorption Refrigerator

2022 ◽  
Vol 2160 (1) ◽  
pp. 012032
Author(s):  
Hongxuan Li ◽  
Tonghua Zou ◽  
Qingling Hui ◽  
Ting Li ◽  
Walter Mittelbach
Keyword(s):  
Low Temperature ◽  
Heat Source ◽  
Water Temperature ◽  
Silica Gel ◽  
Water Adsorption ◽  
Cooling Capacity ◽  
Hot Water ◽  
Low Grade ◽  
Adsorption Refrigeration ◽  
Refrigeration Capacity

Abstract In recent years, adsorption refrigeration technology has attracted wide attention from experts and scholars at home and abroad due to its environmental friendliness and energy saving advantages. In order to study the effectiveness of adsorption refrigeration technology to recover low-grade energy, a silica gel-water adsorption refrigeration system was proposed, which can effectively utilize low-grade energy such as industrial waste heat. The structure and composition of the system are introduced. The operation performance of the unit is tested under different working conditions by orthogonal experimental method, and the experimental results are analyzed. The effects of hot water temperature and flow, chilled water temperature and flow on the refrigeration capacity and COP value of the system are obtained. The experimental results show that under the low-temperature heat source of 55-75°C, the cooling capacity of the system can reach 5.3-12 and the COP value can reach 0.36-0.56. Under the same hot water temperature difference, the cooling capacity and COP value of the system increase rapidly under the condition of changing the hot water temperature at low temperature, indicating that increasing the heat source temperature at low temperature has a greater impact on the system performance. Through the analysis of primary and secondary effects, it is concluded that the inlet temperature of hot water is the main factor affecting the refrigeration capacity and COP value of the system.

Experimental adsorption water desalination system utilizing activated clay for low grade heat source applications

2021 ◽  
Vol 43 ◽  
pp. 103219
Author(s):  
Ehab S. Ali ◽  
Ahmed A. Askalany ◽  
K. Harby ◽  
Mohamed Refaat Diab ◽  
Bahgat R.M. Hussein ◽  
...  
Keyword(s):  
Heat Source ◽  
Water Desalination ◽  
Low Grade ◽  
Experimental Adsorption ◽  
Low Grade Heat
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