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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국생활환경학회 한국생활환경학회지 한국생활환경학회지 제9권 제4호
발행연도
2002.12
수록면
296 - 305 (10page)

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연구주제
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연구배경
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연구방법
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초록· 키워드

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This study focused on the ceiling supply air conditioning system installed in auditoriums with 1,000 seats or less and analyzed, by means of computer simulation, the temperature and velocity distribution together with the predicted mean vote (PMV) of the occupancy zone. The existing ceiling supply air conditioning system has a nozzle air inlet in the ceiling through which air is released. This airflow exceeded the allowable velocity in the occupancy zone I meter above the floor surface, causing a draft. The indoor temperature was 24.7℃ when cooled, 1.3℃ lower than the set air temperature (SAT), and 25.5℃ when heated, 3.5℃ higher than the set air temperature. The Predicted Mean Vote (PMV) of the ceiling supply air conditioning system in the rear seating area of the first floor where the ceiling is relatively low was -0.1~-0.61 when cooled and -0.2~-0.53 when heated. These figures are than those within the comfort zone, indicating the presence of some level of discomfort. As means of improving the ceiling supply air conditioning system, this thesis investigated three systems: the floor supply air ceiling suction system (ALT-1), floor supply air wall suction system (ALT-2), and floor central supply air wall suction system (ALT-3). The most promising data were extracted from the floor supply air wall suction system (ALT-2), known for its superior performance in the thermal environment, when the existing cooling and heating system capacity was reduced by 50%. showed that the velocity distribution in the occupancy zone was within the allowable limit 0.14~0.24 ㎧ when cooled and 0.1~0.28 ㎧ when heated. These levels in the occupancy zone lie within the comfort zone.

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Abstract
1. 서론
2. 연구방법 및 범위
3. 취출방식에 따른 기류 및 온도분포
4. 예상평균온열감(PMV) 평가
5. 결론
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