Krishnappa, AK and Kapilan, N and Kasthurirengan, S and Ashwathnarayana, DP (2023) Experimental and Simulation Study of a Solar Assisted Two Bed Adsorption Refrigeration System Using Activated Carbon-Methanol. In: International Journal of Heat and Technology, 41 (2). pp. 293-303.
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Abstract
Adsorption refrigeration systems have gained lot of attention nowadays due to their ease of operation with low-grade waste or solar heat energy by using environmentally friendly refrigerants but yet unable to compete with the traditional vapor compression systems. Hence, the research activities in this area are still on to address the technological, economic, and environmental issues. According to the literature the working pair used such as silica gel-water, activated carbon-methanol, activated carbon-ethanol, zeolite-water etc. along with driving source temperature as well as the adsorption capacity of working pairs significantly affects the performance of adsorption cooling system. Also it has been noted that the research related to adsorption cooling is rarely found in India. Consequently, tests are carried out in the current work on a solar-assisted two-bed adsorption refrigeration system using activated carbon and methanol as the working pair to produce the cooling effect and the system performance is evaluated. Also the simulation studies are made using MATLAB to know the dynamic behavior of the system with a lumped parameter simulation model. The results of the simulation and experiment are found comparable. From the study it is found that the adsorption system successfully produces the cooling effect with a heat source of 80-85℃ temperature and under no load condition during the experiment, the lowest temperature of 6℃ was observed in the evaporator against a predicted value of 4.9℃ from the simulation. The cooling power and COP obtained from the experiment and the simulation amounts to 250 W, 0.29 and 280 W, 0.35 respectively.
| Item Type: | Journal Article |
|---|---|
| Publication: | International Journal of Heat and Technology |
| Publisher: | International Information and Engineering Technology Association |
| Additional Information: | The copyright for this article belongs to author. |
| Keywords: | activated carbon; adsorption; cooling; MATLAB; solar energy |
| Department/Centre: | Division of Physical & Mathematical Sciences > Centre for Cryogenic Technology |
| Date Deposited: | 15 Jul 2023 07:10 |
| Last Modified: | 15 Jul 2023 07:10 |
| URI: | https://eprints.iisc.ac.in/id/eprint/82464 |
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