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하이브리드 제습기의 입구조건, 재생조건, 로터회전수에 따른 영향 분석을 위한 사이클 해석
서정남(Jungnam Seo),김영일(Youngil Kim),박승태(Seungtae Park) 대한설비공학회 2010 대한설비공학회 학술발표대회논문집 Vol.2010 No.6
Hybrid dehumidifier is a combined system of refrigeration and desiccant dehumidifier and though complicated, it is considered to be more efficient than the individually operated dehumidifying system. In this work, cycle analysis using EES and Eco-dry programs is done to study the effect of inlet condition, regeneration condition and rotor rotation rate on exit temperature, exit humidity and dehumidification effectiveness of a hybrid dehumidifier. Cycle simulation shows that dehumidification effectiveness and dehumidified quantity is greatest when regeneration flow rate ratio is in the range of 0.3-0.5. The dehumidification effectiveness becomes maximum when the rotor rotation rate is 2-3 rph.
열펌프, 데시칸트 및 증발식 냉각기를 조합한 하이브리드 냉방 시스템의 동특성 해석 연구
서정남(Jungnam Seo),김영일(Young Il Kim),정광섭(Kwangseop Chung) 한국지열·수열에너지학회 2011 한국지열에너지학회논문집 Vol.7 No.1
Hybrid desiccant cooling system(HDCS) consists of desiccant rotor, regenerative evaporative cooler, heat pump and district heating hot water coil. In this study, TRNSYS and EES, dynamic and steady simulation programs were used for studying hybrid desiccant cooling system which is applied to an apartment house from June to August. The results show that power consumption of the hybrid desiccant cooling system is 70 ㎾h in June, 199 ㎾h in July and 241 ㎾h in August. Sensible and latent heats removed by the hybrid desiccant cooling system are 300 ㎾h, 301 ㎾h in June, 610 ㎾h, 858 ㎾h in July and 719 ㎾h, 1010 ㎾h in August. COP of the hybrid desiccant cooling system is 8.6 in June, 7.4 in July and 7.2 in August. COP of the hybrid desiccant cooling system decreases when latent heat load increases. Operation time of the system is 70 hours in June, 190 hours in July and 229 hours in August. Since the cooling load is largest in August, the operation time of August is longest for maintaining the indoor temperature at 26℃. Due to the characteristics of hybrid desiccant cooling system for efficiently handling both sensible and latent loads, this system can handle sensible and latent heat loads efficiently in summer.