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배수진(Soojin Bae),이진욱(Jinwook Lee),구돈익(Donik Ku),정민규(Minkyu Jung),김민성(Minsung Kim) 대한기계학회 2021 대한기계학회 춘추학술대회 Vol.2021 No.11
Membrane air dehumidification system is promising method to alternate the dehumidification process at vapor compression cycle which is energy inefficient. However, there is little experimental study of using membrane at actual systems. In this paper, we construct the experimental environment which is similar to the actual systems as using absolute pressure difference between before and after the membrane. Humid air and dry air enter the feed side of the membrane, and Argon, the sweep gas, enters the permeate side of the membrane. It is found that as the relative humidity at the feed inlet increases, the mass of the water vapor at the permeate outlet increases while permeance of water vapor has meaningless change. In addition, as the volume flow rate at the feed inlet increases, both separated mass and permeance of water vapor decreases especially at low flow rate.
배수진(Soojin Bae),정민규(Minkyu Jung),구돈익(Donik Ku),정상훈(Sanghun Jung),김민성(Minsung Kim) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
A pharmaceutial clean room should satisfy the required classification, GMP(Good Manufacturing Practice). To satisfy this, ACRs(Air Change rates) remain quite high, not considering the actual particle concentration. Because of this, the energy consumption of clean room is intensive. In order to save the energy consumption in clean room, the advance research suggested two method. First method is, fine-tuning, which controls the ACRs as the function of particle concentration. Second, DCF, which controls the ACRs as the function of the occupancy in clean room. As a result of the DCF simulation, it satisfied the classification of GMP and more than 70% of fan energy was saved. Also, there is a lot energy consumption in order to control humidity and temperature to required value. Therefore, in a follow-up study, the analysis of energy balance should be carried out which will help use the energy more efficiently.
배수진(Soojin Bae),정민규(Minkyu Jung),구돈익(Donik Ku),정상훈(Sanghun Jung),김민성(Minsung Kim) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
A pharmaceutial clean room should satisfy the required classification, GMP(Good Manufacturing Practice). To satisfy this, ACRs(Air Change rates) remain quite high, not considering the actual particle concentration. Because of this, the energy consumption of clean room is intensive. In order to save the energy consumption in clean room, the advance research suggested two method. First method is, fine-tuning, which controls the ACRs as the function of particle concentration. Second, DCF, which controls the ACRs as the function of the occupancy in clean room. As a result of the DCF simulation, it satisfied the classification of GMP and more than 70% of fan energy was saved. Also, there is a lot energy consumption in order to control humidity and temperature to required value. Therefore, in a follow-up study, the analysis of energy balance should be carried out which will help use the energy more efficiently.
배수진(Soojin Bae),정민규(Minkyu Jung),구돈익(Donik Ku),정상훈(Sanghun Jung),김민성(Minsung Kim) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
A pharmaceutial clean room should satisfy the required classification, GMP(Good Manufacturing Practice). To satisfy this, ACRs(Air Change rates) remain quite high, not considering the actual particle concentration. Because of this, the energy consumption of clean room is intensive. In order to save the energy consumption in clean room, the advance research suggested two method. First method is, fine-tuning, which controls the ACRs as the function of particle concentration. Second, DCF, which controls the ACRs as the function of the occupancy in clean room. As a result of the DCF simulation, it satisfied the classification of GMP and more than 70% of fan energy was saved. Also, there is a lot energy consumption in order to control humidity and temperature to required value. Therefore, in a follow-up study, the analysis of energy balance should be carried out which will help use the energy more efficiently.
이승엽(Seung Yup Lee),배수진(Soojin Bae),강욱(Uk Kang),임근희(Geun Hie Rim),강지명(Jimyung Kang) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
현재 전 세계적으로 건강의 측면뿐만 아니라 미용의 측면에서도 피부에 대한 관심이 증가하고 있다. 또한 다양한 통신 네트워크를 통한 원격 진료 시스템들이 개발되고 있다. 본 연구에서는 전력선 통신(PLC, Power Line Communication)을 이용하여 형광 피부 진단 장비를 통해 획득한 고화질 형광 컬러 영상을 원격지로 전송하는 원격 피부진단 시스템을 구축하였다. 이를 통하여 피부과 영역에서의 원격 진료의 가능성과 U-healthcare 시스템 구축에 있어서 전력선 통신망의 적용 가능성을 보였다.
이상적 멤브레인 진공 제습 시스템의 이론적 최대 제습 성능 연구
구돈익(Donik Ku),배수진(Soojin bae),정민규(Minkyu Jung),김민성(MInsung Kim) 대한설비공학회 2022 대한설비공학회 학술발표대회논문집 Vol.2022 No.6
As a non-vapor compression air conditioning system to overcome the disadvantages of the vapor compression refrigeration system, research on the membrane heat pump (MHP) is active. MHP allows efficient air conditioning by separating the sensible heat removal process and the latent heat removal process, and removes latent heat through a membrane-based vacuum dehumidification system (MVD) consisting of a membrane mass exchanger and a vacuum compressor. In this study, to define the theoretical maximum dehumidification COP of W-MVD and C-MVD with high performance among MVDs of various structures, the dehumidification COP for the ideal open cycle without irreversibility is defined and verified through Exergy analysis and compressor consumption model.