EFFECTS OF OUTLET AIR VELOCITY AND COOLING WATER TEMPERATURE OF AIR COOLER WITH CLOSED-LOOP OSCILLATING HEAT PIPES

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Piyanun Charoensawan
Nopparat Seehawong
Patomsok Wilaipon

Abstract

The air cooler original size 355 × 300 × 700 mm. The closed-loop Oscillating heat pipe (CLOHP) built from copper capillary pipes instead of cooling pad and contains R134a as working fluid. The effects of various parameters i.e., The Air flow rate, The water temperature and the number of heat pipes, The tests fan speed between 3.5 m/s to 4.2 m/s at cold water temperatures in the range of 6°C to 21°C. The CLOHP consists of 2 and 4 sets of heat pipes. The heat transfer rate decreased when increase air velocity for 2 and 4 sets of pipes. Increasing the cold-water temperature of both 2 and 4 heat pipe sets to have lower heat transfer rates and effectiveness decreased. Adding 4 heat pipes is better than using 2 heat pipes, and at the out-air humidity ratio, when using heat pipes, the value is reduced by 6.6% In air humidity ratio.

Article Details

How to Cite
Charoensawan, P., Seehawong, N., & Wilaipon, P. (2024). EFFECTS OF OUTLET AIR VELOCITY AND COOLING WATER TEMPERATURE OF AIR COOLER WITH CLOSED-LOOP OSCILLATING HEAT PIPES. Journal of Energy and Environment Technology of Graduate School Siam Technology College, 11(2), 1–11. Retrieved from https://ph01.tci-thaijo.org/index.php/JEET/article/view/257226
Section
Research Article

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