Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)
- 2008.06a
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- Pages.334-339
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- 2008
A Study on the Performance of Heat Exchanger for Closed Cooling Tower
밀폐식 냉각탑용 열교환기의 성능에 관한 연구
- Lee, Sang-Sik (Bk21 Mechatronics Group, Chungnam National University) ;
- Yoo, Seong-Yeon (Bk21 Mechatronics Group, Chungnam National University) ;
- Kim, Jin-Hyuck (Bk21 Mechatronics Group, Chungnam National University) ;
- Ahn, Young-Hwan (Jang-han Engineers. Inc.) ;
- Park, Hyoung-Joon (Jang-han Engineers. Inc.) ;
- Ryu, Hae-Sung (Jang-han Engineers. Inc.)
- 이상식 (충남대학교 BK21 메카트로닉스 사업단) ;
- 유성연 (충남대학교 BK21 메카트로닉스 사업단) ;
- 김진혁 (충남대학교 BK21 메카트로닉스 사업단) ;
- 안영환 ((주)장한기술) ;
- 박형준 ((주)장한기술) ;
- 유해성 ((주)장한기술)
- Published : 2008.06.25
Abstract
An closed cooling tower is a device similar to a general cooling tower, but with cooling tower replaced by a heat exchanger. The purpose of this study is to evaluate thermal performance of heat exchanger at various conditions and to provide design datebase. The experimental study regarding heat exchanger for closed cooling tower was conducted. Experimental apparatus consists of constant temperature bath, water pump, spray nozzle, heat exchanger, fan, and date acquisition system. Heat transfer rates at various air velocitys, water flow rates, two different spray modes were measured and heat transfer coefficient were calculated to compare the thermal performances. This study provides that the heat transfer coefficient increases with increasing spray water flow rate and with increasing air velocity. The wet mode was more effective than dry mode for closed cooling tower to this study.
Keywords