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http://dx.doi.org/10.5762/KAIS.2013.14.12.6072

Heat Transfer and Pressure Drop Characteristics of Cross-Flow Plastic Air Heater for a Cooling Tower  

Kim, Nae-Hyun (Division of Mechanical System Engineering, Incheon National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.14, no.12, 2013 , pp. 6072-6081 More about this Journal
Abstract
In this study, experiments were performed on air heater samples with three different shapes (chevron, wave and dimple type) to reduce the plumes from cooling towers. The tests were conducted for a range of frontal air velocities of 1~3 m/s and water flow rate 0.19~0.33 kg/s. The results showed that the heat transfer rate increased with increasing air velocity or water flow rate. The air-side pressure drop also increased with increasing air velocity. At the same frontal air velocity, the highest heat transfer rate was obtained for the chevron sample (1.5~1.7 times compared to that of the plate sample), followed by the dimple, wave and plate samples. The heat transfer rate per unit power consumption was also 15% larger than that of the dimple sample. On the other hand, there was no noticeable difference between the other samples.
Keywords
Heat Transfer; Pressure drop; Cooling Tower; Air Heater;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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