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박상동,박효순,우정선,유헌형,공성훈,유승광,Park S.D,Park H.S,Woo J.S,Yoo H.H,Kong S.H,Yoo S.K 대한설비공학회 1987 설비저널 Vol.16 No.2
Main objective of this study is to provide heating cost allocation method according to the amount of heating energy consumption in apartments. Heating energy consumptions are calculated by DOE-2.1A program. As a result, heat loss ratio in Ondol heating system, heating cost coefficients of apartments and its using method is presented. Maximum heating cost coefficient rate is 2.63.
배기열(排氣熱) 회수용(回收用) 축류(軸流) 회전형(回轉形) 현열교환기(顯熱交換器)의 최적설계(最適設計)에 관한 연구(硏究)
최영돈,박상동,우정선,태춘섭,Choi, Y.D.,Park, S.D.,Woo, J.S.,Tae, C.S. 대한설비공학회 1991 설비공학 논문집 Vol.3 No.2
A method of optimum design of an axial rotary sensible heat exchanger for the heat recovery of exhaust gas from the air conditioning space was developed in consideration of economics of investment cost and profit according to the installation of heat exchangers. Leakage rate of exhaust gas was calculated and the correlation for the pressure drop due to leakage of exhaust gas was proposed. Heat transfer between the matrix and exhaust and intake gas was analysed to calculate the effectiveness of heat exchanger, which was used for the optimum design of rotary heat exchanger. The results show that optimum rotational speed increases as the length of rotor increases and there exists optimum NTU which maximizes the gain of total cost according to the installation of rotary heat exchanger.
배기열(排氣熱) 회수용(回收用) 평판(平板) - 휜형(形) 밀집형(密集形) 현열(顯熱) 열교환기(熱交換器)의 최적설계(最適設計)에 관한 연구(硏究)
최영돈,박상동,우정선,태춘섭,Choi, Y.D.,Park, S.D.,Woo, J.S.,Tae, C.S. 대한설비공학회 1990 설비공학 논문집 Vol.2 No.2
Method of optimum design of a compact sensible plate-fin heat exchanger for the heat recovery of exhaust gas from the air conditioning space was developed in consideration of the econamics of investment cost and profit according to the installation of heat exchanges. In the counterflow heat exchanger, the frontal area was fixed and the length of heat exchanger was optimized in order to maximize the net gain according to the setting of the heat exchanger. In the cross flow heat exchanger, the size of the exchanger was also optimized to maximize the net gain.
조성환,박상동,Cho, S.H.,Park, S.D. 대한설비공학회 1992 설비공학 논문집 Vol.4 No.2
It has been known that the application of an airflow window system reduces the energy consumption compared with conventional double pane window in a building. But how to analyze thermal load in a building with an airflow window system has not been well known. so two kinds of method (Mode 1 and Mode 2) to analyze time dependent thermal load of the building with an airflow window system are presented in this study. The results of load analysis about the model building(total area : $4521m^2$, 3 floors) by Mode 2 show that the maximum cooling and heating load in a building with an airflow window system are decreased about 12-17% and about 19.5% than with double pane glass window, and yearly energy consumption with an airflow window system is saved about about 20% than with double pane glass window.
다공질 폴리우레탄 폼 매트릭스 축류 회전형 열교환기의 성능특성에 관한 실험적 연구
태춘섭,박상동,조성환,최영돈,Tae, C.S.,Park, S.D.,Cho, S.H.,Choi, Y.D. 대한설비공학회 1993 설비공학 논문집 Vol.5 No.1
This is an experimental study to identify the performance of air-to-air rotary heat exchanger with polyurethane foam matrix. The experimental apparatus including heating AHU(Air Handling Unit), cooling AHU, sensor chamber, and heat exchanger testing unit was designed and manufactured in this study. The performance of heat exchanger with porous polyurethane foam matrix was tested with variations of the density and the thickness of matrix, regulating the wind velocity and the rotational speed of matrix. The actual heat recovery effectiveness, air leakage rate, and pressure drop of heat exchanger were measured and analyzed.