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반도체 FAB 배기가스의 냉열 회수를 통한 외기조화기의 에너지 절감 성능 분석
권택돈(Taek-Don Kwon),이수진(Soo-Jin Lee),정재원(Jae-Won Jeong),이재희(Jae-Hee Lee),김민성(Min-Seong Kim),정재원(Jae-Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.11
본 연구는 반도체 Fabrication Plant에서 배출되는 배기가스의 냉열 에너지를 회수하여 외기조화기에 적용하고, 이에 따른 하절기 에너지 절감 가능성을 검토 하였다. 일반적으로 반도체 FAB에서 배출되는 배기가스 중 30~40%는 제조장비의 발열을 제거 후 하절기 외기대비 낮은 습구온도로 대기방출 되는데, 이 배기가스를 일반배기라 하며, 일반배기로 부터 냉열에너지를 회수 후 외기조화기의 인입공기 냉방에 사용하였다. 배기를 활용하기 위해 냉각탑을 연결, 증발냉각을 통해 온도가 낮은 냉각수를 생산하고, 이를 외기조화기의 하절기 미사용 부동액 순환계와 열 교환하게 하여 냉각 코일전단에서 인입 공기 냉각효과가 발생 하게 하였다. 적용 결과 하절기 기준 외기조화기의 냉방 필요 열량의 11.9%줄일 수 있는 냉열 회수 가능성을 확인하였으며, 냉열 회수를 위해 소모된 전력까지 감안한 실제 에너지 절감율을 높이기 위해서는 냉각탑의 액기비 선정이 중요하게 고려되어야 하는 것으로 판단한다.
열전소자 기반 에너지 하베스팅 블록의 배열에 따른 발전량 분석
정재원(Jae-Won Joung),강용권(Yong-Kwon Kang),김민성(Min-seong Kim),권택돈(Taek-Don Kwon),정재원(Jae-Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
The purpose of this study is to analyze the amount of power generation according to the arrangement of energy harvesting blocks installed instead of building exterior walls. The energy harvesting block is an energy recovery system that combines a thermoelectric generator and phase change material. The thermoelectric generator can generate the power from the waste heat of the building exterior wall by the Seebeck effect. Phase change materials store waste heat of the exterior wall of the building during the day and radiant heat is performed at night. To predict the amount of power generation, an experiment was conducted with the average building exterior wall surface temperature profile in November. A Peltier plate was attached to the energy harvesting block and used to establish the exterior wall surface temperature profile. As a result, the maximum power was 0.119W, which was the largest in the parallel arrangement, It is also indicated that the total amount of electricity generated per day, the parallel arrangement generated the largest amount of power at 0.535Wh/day.
열전소자 기반 에너지 하베스팅 블록의 배열에 따른 발전량 분석
정재원(Jae-Won Joung),강용권(Yong-Kwon Kang),김민성(Min-seong Kim),권택돈(Taek-Don Kwon),정재원(Jae-Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
The purpose of this study is to analyze the amount of power generation according to the arrangement of energy harvesting blocks installed instead of building exterior walls. The energy harvesting block is an energy recovery system that combines a thermoelectric generator and phase change material. The thermoelectric generator can generate the power from the waste heat of the building exterior wall by the Seebeck effect. Phase change materials store waste heat of the exterior wall of the building during the day and radiant heat is performed at night. To predict the amount of power generation, an experiment was conducted with the average building exterior wall surface temperature profile in November. A Peltier plate was attached to the energy harvesting block and used to establish the exterior wall surface temperature profile. As a result, the maximum power was 0.119W, which was the largest in the parallel arrangement, It is also indicated that the total amount of electricity generated per day, the parallel arrangement generated the largest amount of power at 0.535Wh/day.
열전소자 기반 에너지 하베스팅 블록의 배열에 따른 발전량 분석
정재원(Jae-Won Joung),강용권(Yong-Kwon Kang),김민성(Min-seong Kim),권택돈(Taek-Don Kwon),정재원(Jae-Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
The purpose of this study is to analyze the amount of power generation according to the arrangement of energy harvesting blocks installed instead of building exterior walls. The energy harvesting block is an energy recovery system that combines a thermoelectric generator and phase change material. The thermoelectric generator can generate the power from the waste heat of the building exterior wall by the Seebeck effect. Phase change materials store waste heat of the exterior wall of the building during the day and radiant heat is performed at night. To predict the amount of power generation, an experiment was conducted with the average building exterior wall surface temperature profile in November. A Peltier plate was attached to the energy harvesting block and used to establish the exterior wall surface temperature profile. As a result, the maximum power was 0.119W, which was the largest in the parallel arrangement, It is also indicated that the total amount of electricity generated per day, the parallel arrangement generated the largest amount of power at 0.535Wh/day.
초음파 미세분사형 액체식 제습 기술 기반 환기시스템 설계
이수진(Soo-Jin Lee),이재희(Jae-hee Lee),정재원(Jae-Won Joung),권택돈(Taek-Don Kwon),정재원(Jae-Weon Jeong) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
The purpose of this study is to design of the ultrasonic atomized liquid desiccant-assisted ventilation system. The ventilation system was operated to remove the latent load in the building, and the ultrasonic atomized liquid desiccant system was used to dehumidify the hot and humid outdoor air. The dehumidification performance and thermal load of the system were evaluated under various liquid-to-gas ratio (L/G ratio) and droplet size of each absorber and regenerator by the simulation. The results indicated that the proposed system was operated stably with balanced dehumidification and regeneration when 0.4 and 0.6 L/G ratio and 50 and 50μm droplet size in the absorber and regenerator, respectively. The humidity ratio of the supply air was below 0.010 kg/kg and solution concentration was maintained approximately from 33 to 35.5% during summer season under the proposed design conditions of the absorber and regenerator.