| 주 저자 | Kim, Min-Hwi |
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| 공동 저자 | A.S. Choi, J.W. Jeong. |
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| 소속 | Department of Architectural Engineering, Sejong University, Seoul 143-747, Republic of Korea |
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| Abstract | The main thrust of this research is to verify the heating energy reduction capacity of an indirect and
direct evaporative cooler assisted 100% outdoor air system (IDECOAS) via actual winter operation of
the pilot unit installed in a campus building. A conventional variable air volume (VAV) system was also
installed for comparison with the proposed system. By measuring variation of air temperature and relative
humidity at each measurement location, effectiveness values of the indirect evaporative cooler (IEC) and
the sensible heat exchanger (SHE) were monitored. In addition, the influence of balanced and unbalanced
flow conditions between the supply air and the exhaust air on the sensible heat exchange effectiveness
was also observed. Fan energy and heating coil energy consumptions were also measured by installing
a wattmeter at each device. It was concluded that the IDECOAS shows 60?85% operating energy saving
over the conventional VAV system. The sensible heat reclaimed from the exhaust air at the IEC and the
SHE reduces the heating coil energy consumption significantly in the proposed system. It was also found
that the IDECOAS consumes more fan energy than the conventional VAV, but this penalty is offset by the
heating energy reduction. |
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| Keyword | Indirect evaporative cooler, Sensible heat exchanger, Effectiveness,
Heat reclaim, 100% outdoor air system |
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| 페이지 | pp. 402~409 |
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| 논문 파일 |
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| 게재일시 |
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| DOI | - |
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| 학회/저널명 | Energy and Buildings Vol.49 |
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| 년도 | 2012 |
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| 추가 문구 | http://dx.doi.org/10.1016/j.enbuild.2012.02.036 |
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| 등록 일시 | 2025-06-18 13:41:31 |
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