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Economizer cycle을 채용한 전열교환형 환기시스템의 에너지 절감 효과 분석 : 국내 학교를 대상으로
김주욱(Joo Wook Kim),박재형(Jae Hyung Park),송두삼(Doo Sam Song),주의성(Euy Sung Chu),권영철(Young Chul Kwon) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
Maintaining an IAQ with fresh in school building is very important because the good IAQ can be possible to improve the academic performance. Since school buildings are very dense and require a lot of fresh air, the need for ERV(Energy Recovery Ventilator) has become obvious. While opening a window does provide ventilation, the building's heat and humidity will then be lost in the winter and gained in the summer, both of which are undesirable for the indoor climate and for energy efficiency. ERV technology offers an optimal solution: fresh air, better climate control and energy efficiency. However, when the outdoor air condition is favorable to control the indoor environment such as spring and autum in Korea, heat exchange in ERV would rather increase the cooling load than diminish. Economizer cycle control which using the outdoor air in controlling the indoor thermal environment has many benefit in terms of energy saving and IAQ control. In this study, the ERV with economizer cycle control will be suggested. And then the system control characteristics and energy saving effect will be analyzed through the TRSNSYS Simulation.
누적 입자의 직경에 따른 HEPA 필터 성능 변화 특성에 대한 실험적 연구
김관택(Gwan Taek Kim),이종범(Jong Beom Lee),김무중(Moo joong Kim),윤백(Baek Youn),임병한(Byung Han Lim),주의성(Euy Sung Chu),김권진(Kwon Jin Kim) 대한기계학회 2016 대한기계학회 춘추학술대회 Vol.2016 No.12
In previous paper investigated the HEPA(High Efficiency Particulate Air filter) filter change of the performance(such as filtration efficiency, flow rate and pressure drop) with accumulated ultra-fine particle under 0.3 μm. The electrostatic force is decrease the ultra-fine and fine particle to accumulate in the HEPA filter. Fine particle is larger the inertial impaction and interception effect of the dust cake generation. For this reason, filtration efficiency tend to decreased during accumulated ultra-fine particle. on the other hand fine particle is increased as the accumulated filtration efficiency. In this study investigated the performance change accumulate ultra-fine particle, then fine particle.
향 연기 누적에 따른 HEPA 필터 성능 변화의 실험적 연구
이종범(Jong Beom Lee),김무중(Moo joong Kim),김관택(Gwan Taek Kim),임병한(Byung Han Lim),주의성(Euy Sung Chu),김권진(Kwon Jin Kim),윤백(Baek Youn) 대한설비공학회 2016 대한설비공학회 학술발표대회논문집 Vol.2016 No.6
It is known that the ultra-fine dust is fatal to human health, and HEPA filter is one of the efficient ways to remove it at home, office and etc. The present work studied the variation of HEPA filter performance(pressure drop, dust collection efficiency and etc.) as ultra-fine dust under 0.3μ was accumulated on the filter and the characteristic difference from the results of the regular test dust whose diameter ranges from 0 to 100μ. Incense smoke was used to generate the ultra-fine dust for the test. Generally it is known that as the regular test dust is accumulated on a filter pressure drop increases and dust collection efficiency of the filter remains constant or increases. However It was fount that the accumulation of ultra-fine dust on HEPA filter resulted in a considerable reduction in the dust collection efficiency while the pressure drop remains almost constant, which is quite different from the results of regular test dust.
폐열회수형 환기장치의 휘발성유기화합물 배출 특성에 관한 연구
곽경민(Kyung-Min Kwak),배철호(Cheol-Ho Bai),배효석(Hyo-Seok Bai),김지용(Jee-Yong Kim),주의성(Euy-Sung Chu) 대한설비공학회 2006 대한설비공학회 학술발표대회논문집 Vol.2006 No.11
This study is to evaluate the emission characteristics of VOCs from indoor side the heat recovery ventilator system. The operating conditions are flow rate and operating time under KS cooling and heating standard condition, 2 kind of elements in heat recovery ventilator are used, L and M type. The VOC concentrations from heat recovery ventilator with M type and L type elements have no effect on variation of flow rate and operating time. The VOC concentrations on the cooling condition is much larger than those of heating condition.
남현규(Hyun-Kyu Nam),배철호(Cheol-Ho Bai),권영철(Yong-Chul Kwon),김성우(Sung-Wool Kim),주의성(Euy-Sung Chu) 대한설비공학회 2011 대한설비공학회 학술발표대회논문집 Vol.2011 No.7
An experimental study was performed to reduce the condensation during the winter operation. The hydrochromic ink was used to detect the condensation in the total heat exchanger. The condensation within the total heat exchanger during the winter operation occurs at the cold wall of the exhaust air. When the air flow rate of the exhaust air is decreased, the condensation temperature of the exhaust air becomes lower and therefore, the condensation is reduced. While the decreasing air flow rate of the supplied air promotes the condensation by raising the condensation temperature of the exhaust air within the total heat exchanger.