The effect of mass recovery adsorption cooling cycle to optimize the collector number and time allocation

2016 ◽  
Author(s):  
K. M. Ariful Kabir ◽  
K. C. Amanul Alam ◽  
Rifat A. Rouf ◽  
M. M. A. Sarker
Keyword(s):  
Time Allocation ◽  
Cooling Cycle ◽  
Mass Recovery

Numerical Study on the Combined Heat and Mass Recovery Adsorption Cooling Cycle

2017 ◽  
Vol 6 (2) ◽  
pp. 296-305 ◽  
Author(s):  
Xuan Quang Duong ◽  
Ngoc Vi Cao ◽  
Sang Woo Hong ◽  
Sang Hyeok Ahn ◽  
Jae Dong Chung
Keyword(s):  
Numerical Study ◽  
Cooling Cycle ◽  
Heat And Mass Recovery ◽  
Mass Recovery

scholarly journals Performance Analysis of Variable Mode Adsorption Chiller at Different Recooling Water Temperatures

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3871
Author(s):  
Ahmad A. Alsarayreh ◽  
Ayman Al-Maaitah ◽  
Menwer Attarakih ◽  
Hans-Jörg Bart
Keyword(s):  
Experimental Data ◽  
Water Temperature ◽  
Cycle Time ◽  
Single Stage ◽  
Force Model ◽  
Technical Problems ◽  
Cooling Cycle ◽  
Adsorption Chiller ◽  
Variable Mode ◽  
Mass Recovery

Adsorption cooling can recover waste heat at low temperature levels, thereby saving energy and reducing greenhouse gas emissions. An air-cooled adsorption cooling system reduces water consumption and the technical problems associated with wet-cooling systems; however, it is difficult to maintain a constant recooling water temperature using such a system. To overcome this limitation, a variable mode adsorption chiller concept was introduced and investigated in this study. A prototype adsorption chiller was designed and tested experimentally and numerically using the lumped model. Experimental and numerical results showed good agreement and a similar trend. The adsorbent pairs investigated in this chiller consisted of silicoaluminophosphate (SAPO-34)/water. The experimental isotherm data were fitted to the Dubinin–Astakhov (D–A), Freundlich, Hill, and Sun and Chakraborty (S–C) models. The fitted data exhibited satisfactory agreement with the experimental data except with the Freundlich model. In addition, the adsorption kinetics parameters were calculated using a linear driving force model that was fitted to the experimental data with high correlation coefficients. The results show that the kinetics of the adsorption parameters were dependent on the partial pressure ratio. Four cooling cycle modes were investigated: single stage mode and mass recovery modes with duration times of 25%, 50%, and 75% of the cooling cycle time (denoted as short, medium, and long mass recovery, respectively). The cycle time was optimized based on the maximum cooling capacity. The single stage, short mass recovery, and medium mass recovery modes were found to be the optimum modes at lower (<35 °C), medium (35–44 °C), and high (>44 °C) recooling temperatures. Notably, the recooling water temperature profile is very important for assessing and optimizing the suitable working mode.

STUDY ON ACF/ETHANOL BASED TWO STAGE ADSORPTION COOLING CYCLE

Equipment ◽  
2006 ◽  
Author(s):  
B. B. Saha ◽  
I. I. El-Sharkawy ◽  
A. Chakraborty ◽  
S. Koyama ◽  
K. C. Ng
Keyword(s):  
Two Stage ◽  
Cooling Cycle
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