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http://dx.doi.org/10.14775/ksmpe.2017.16.4.147

A Study on the Condensation Heat Transfer Characteristics of a Loop Heat Pipe Heat Exchanger for High Speed Rotary Shaft Cooling  

Cho, Dong-Hyun (Department of Computer aided Mechanical Engineering, DAEJIN UNIVERSITY)
Lee, Jong-Sun (Department of Computer aided Mechanical Engineering, DAEJIN UNIVERSITY)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.16, no.4, 2017 , pp. 147-152 More about this Journal
Abstract
In the present study, we used a loop thermosyphon heat exchanger consisting of condensers with internal fins and external plate fins which are 480 mm wide, 68 mm long, and 1,000 mm high. The heat transfer pipes in the heat exchanger were 15 mm in diameter and 1,000 mm in length, and 98 heat transfer pipes were installed in the heat exchanger. According to the experimental results, as the spaces between the internal discontinuous pins decreased, the frequency of pressure drops increased and changes in temperature at the outlet of the condenser were shown to be a little smaller. Therefore, we can see that as the spaces between internal discontinuous pins decreased, the heat transfer performance increased. For the loop heat pipe heat exchanger consisting of a condenser with internal and plate fins, as the temperature of the air flowing into the condenser increased, the condensation heat transfer rate also increased, and as the condenser refrigerant inflow temperature increased, the condensation heat transfer rate increased as well.
Keywords
Loop Heatpipe Heat Exchanger; Condenser Section; Internal Fins; Plate Fins; Performance of Heat Transfer;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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