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저압손 유로구조와 미세다공 토출을 적용한 천장형 무풍 에어컨의 쾌적 기류 개발
황준(Jun Hwang),이준화(Junhwa Lee),서형준(Hyeongjoon Seo),임병국(Byongguk Lim),주영주(Youngju Joo),조형규(Hyeongkyu Cho),이상우(Sangwoo Lee) 대한설비공학회 2018 대한설비공학회 학술발표대회논문집 Vol.2018 No.6
Long and indirect air flow have been required for 4-way ceiling type cassette. In this paper, We show how to make long and comfort wind free air flow considering cold draft by using hybrid flow for 4-way ceiling type indoor units. To investigate the effect of the hybrid flow path, we measured the air flow velocity, distance, temperature distribution and PMV, PPD. The effect of the hybrid air flow path air flow distance was two times further and under wind-free mode, occupant zone was formed in still air condition(under 0.15m/s) and maintained uniform temperature distribution. Therefore, PMV and PPD were improved to meet the ASHRAE comfort zone
써큘레이터를 적용한 가정용 무풍에어컨의 온열환경 쾌적성 향상에 관한 실험적 연구
황준(Jun Hwang),이준화(Junhwa Lee),서형준(Hyeongjoon Seo),임병국(Byongguk Lim),주영주(Youngju Joo),조형규(Hyeongkyu Cho),이상우(Sangwoo Lee) 대한설비공학회 2019 대한설비공학회 학술발표대회논문집 Vol.2019 No.-
This paper focused on the indoor thermal comfort improvement by the wind free floor-standing type air conditioner. Evaluate the indoor thermal comfort and air quality to meet the growing demands of the occupants, a circulator was applied to the air conditioner. There are various parameters which are influenced thermal comfort, Especially, Air flow is the most essential parameter to achieve comfort condition. This study presents the thermal comfort improvement method by using a circulator to the air conditioner. Air flow rate increased 20% higher by the circulator. Circulator fan spread cold air wide and achieve comfort condition fast. When the occupant zone reached to the comfort condition air flow can be changed to the wind free mode to reduce cold draft. To investigate the effect of the circulator fan, we measured the air flow velocity, temperature distribution and compared to general cooling mode.
가정용 인버터 에어컨의 사용 환경에 따른 에너지 절감율에 관한 실험적 연구
이상우(Sangwoo Lee),황준(Jun Hwang),주영주(Youngju Joo),조형규(Hyeongkyu Cho),서형준(Hyeongjoon Seo),임병국(Byongguk Lim),임성진(Seongjin Lim) 대한설비공학회 2020 대한설비공학회 학술발표대회논문집 Vol.2020 No.6
Recently, as the situation of using air conditioners for a long time has increased, interest in power consumption consumed by air conditioners has increased. In particular, the interest in electricity bills is higher than ever due to the progressive electricity bills in Korea. In this paper, Evaluate the three methods increasing the set temperature, close unused rooms, and stop driving when going out those can reduced power consumption. Through this, this study provides information for economical use of air conditioners. Under the conditions of this experiment, it was confirmed that the power consumption was reduced by about 11% as the set temperature increased by 1 degree and the power consumption is reduced in proportion to the blocking space by blocking the unused space. Finally when going out for a while,turning on the air conditioner will help save energy.