| 주 저자 | Kim, Min-Hwi |
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| 공동 저자 | J.W. Jeong. |
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| 소속 | Department of Architectural Engineering, Hanyang University, Seoul 133-791, Republic of Korea |
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| Abstract | The object of this study was to evaluate the energy performance of an indirect and direct evaporative
cooler assisted 100% outdoor air system (IDECOAS), of which a pilot unit was installed in a campus
building, during its actual operation in cooling and intermediate seasons. A conventional variable air
volume (VAV) system was also installed for comparison with the proposed system. The IDECOAS operated
in two operation modes (i.e., single-stage and two-stage operation) depending on the seasonal
conditions (i.e., intermediate season and cooling season). In addition, the effectiveness of the indirect
evaporative cooler (IEC) and the direct evaporative cooler (DEC) were monitored by measuring the
variation of air temperature and relative humidity at each measurement location. The fan and cooling
coil energy consumption were also measured by installing watt meters on each device. It was concluded
that the IDECOAS operating in the two-stage mode in the intermediate season shows a 51% energy saving
over the conventional VAV system. However, the proposed system may consume 36% more operating
energy than the conventional VAV system during the cooling season. This may be caused by limited
cooling performance of the IEC in hot and humid climate. |
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| Keyword | Indirect evaporative cooler, Direct evaporative cooler, Sensible heat exchanger, Heat reclaim, 100% outdoor air system |
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| 페이지 | pp. 245~257 |
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| 논문 파일 |
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| 게재일시 |
2013-04
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| DOI | - |
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| 학회/저널명 | Energy Vol.52 |
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| 년도 | 2013 |
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| 추가 문구 | http://dx.doi.org/10.1016/j.energy.2013.02.008 |
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| 등록 일시 | 2025-06-18 13:43:50 |
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