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Shell & Coil Type Heat Exchanger 유동특성에 관한 연구
김종원(Jong-Won Kim),정성학(Sung-Hak Jung),김상희(Sang-Hee Kim),전병헌(Byung-Heon Jeon),백창훈(Chang-Hun Paik),이승갑(Seung-Gap Lee) 대한설비공학회 2012 대한설비공학회 학술발표대회논문집 Vol.2012 No.6
In this study, to realize the environmentally friendly refrigeration and the air conditioning technology, energy-saving high-efficiency heat exchanger is developed, that is required to produce its own high-efficiency heat exchange. Prior to the product development, CFD simulations are analyzed internally through the heat exchanger to determine the flow characteristics. Internal flow analysis for shell & coil heat exchangers was performed the three-dimensional calculations using commercial thermal analyses program FLUENT based on the FVM(finite volume method). To understand the characteristics of internal flow in minute detail, the X, Y axis positions of the section in the region of interest were selected. The results, overall flow was desired
다양한 집진필터의 적용에 따른 열회수형 환기장치의 성능 변화에 대한 연구
강영모(Young Mo Kang),김종원(Jong Won Kim),서정섭(Jung Sub Seo),전병헌(Byung Hun Jeon),안영철(Young Chull Ahn) 대한설비공학회 2020 설비공학 논문집 Vol.32 No.4
Today, we live in a world where serious environmental problems exist such as ultrafine dust. Ultrafine dust ha many health risks and can cause various diseases and allergies. Thus, the role of the ventilation system as an air cleaning technology is becoming crucial. In this study, the performance evaluations of the total heat exchanger using several types of HEPA grade filters were conducted for total heat exchange efficiency, valid total heat exchange efficiency, leakage rate, noise, energy coefficient, and particle capturing efficiency. The H13 grade filter shows the highest total heat exchange efficiency. Also, the H13 grade shows the greatest decrease in total heat exchange efficiency considering the leakage rate. The results of the particle cleaning capacity test shows that the H12 grade filter has the best particle cleaning efficiency.