| 주 저자 | Kim, Min-Hwi |
|---|
| 공동 저자 | J.H. Kim, A.S. Choi, J.W. Jeong. |
|---|
| 소속 | * Department of Architectural Engineering Sejong University Seoul 143-747 Republic of Korea, ** Hanil Mechanical and Electrical Consultants Seoul 150-103 Republic of Korea |
|---|
| Abstract | In this study, a pilot Dry Coil IEC unit, an indirect evaporation cooler established by connecting a direct
evaporation cooler and a sensible heat exchanger (SHE) in series, was made, and the effectiveness data of
the pilot unit were acquired under various operation conditions in an environmental chamber realizing
a wide-range of indoor and outdoor air conditions. The test result shows that over 40% effectiveness can
be acquired even in hot and humid climates by using the Dry Coil IEC proposed in this paper. The Dry Coil
IEC reduces the cooling coil size by pre-cooling the process air during the cooling season. It can also be
used as an SHE reclaiming the sensible heat from the exhaust air during winter operation. The pilot unit
recovered over 60% of sensible heat in the test. In addition, a simplified model of Dry Coil IEC returning
the various operation conditions was developed based on existing models of an SHE and a direct
evaporative cooler. A polynomial equation returning the effectiveness of the Dry Coil IEC was derived as
a function of seven independent variables highly influencing the performance of the unit. The experimental
data acquired by the pilot unit operation agree well with the effectiveness values of the Dry Coil
IEC predicted by the proposed model. It was also identified that the proposed equation agrees well with
the existing model of the Dry Coil IEC applied to the energy simulation program. |
|---|
| Keyword | Indirect evaporative cooler, Direct evaporative cooling, Dry Coil IEC,
Sensible heat exchanger, Effectiveness |
|---|
| 페이지 | pp. 6479~6489 |
|---|
| 논문 파일 |
|
|---|
| 게재일시 |
-
|
|---|
| DOI | - |
|---|
| 학회/저널명 | Energy Vol.36, No.11 |
|---|
| 년도 | 2011 |
|---|
| 추가 문구 | http://dx.doi.org/10.1016/j.energy.2011.09.018 |
|---|
| 등록 일시 | 2025-06-18 13:36:12 |
|---|
