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지역난방 공동주택에서 급탕 2단 열교환기 용량의 적정성 평가에 관한 연구
사기용(Ki-Yong Sa),정광섭(Kwang-Seop Chung),김영일(Young-il Kim),나채문(Chai-Moon Na),김성민(Sung-Min Kim),김상호(Sang-Ho Kim) 대한설비공학회 2009 대한설비공학회 학술발표대회논문집 Vol.2009 No.-
In connection with a recent research project dealing with heating system in apartment buildings by district heating, it was realised that in general very little information on the actual performance of heating and hot water systems in apartment buildings has been documented. In order to improve of district heating systems, a prediction of the heat demand first needs to be determined before a production plan. this is hot water heat system developed in this paper. this is also analyzed relation heat load with preheat load in hot water heating exchanger system.
지역난방 공동주택에 설치하는 급탕 2단 열교환기의 용량 적정성 평가에 관한 연구
정광섭(Kwang-Seop Chung),사기용(Ki-Yong Sa),김래현(Lae-Hyun Kim),이훈(Hoon Lee) 대한설비공학회 2009 설비공학 논문집 Vol.21 No.8
Recently, an increasing interest in district heating system has emerged rapidly. In this paper, the physical measurements and data to be monitoring through the internet were carried out with regard to hot water heating energy consumption at the three apartment housings with district heating system in Sang-am district of Seoul, Korea. Measurements were made of the thermal factors such as the pressure of heating pipe, flow rates, hot water temperature and etc. The objective of this study is to compare the design capacity of reheat exchanger with that of preheat exchanger in order to evaluate for the number of plates of two exchangers to be distributed properly.
단열 규정의 강화가 지역난방 공동주택의 난방열사용량에 미치는 영향에 관한 연구
정광섭(Chung Kwang-Seop),김영일(Kim Young-Il),사기용(Sa Ki-Yong) 대한건축학회 2010 대한건축학회논문집 Vol.26 No.6
Recently, an increasing interest in district heating system or combined heat and power(CHP) system has emerged rapidly. District heating systems are not only more energy efficient but also provide emergency backup to the power grid as well as the thermal network of a building complex. In this paper, the physical measurements such as hot water heating supply temperature and pressure were carried out by using numerous data loggers. In order to estimate the heating energy consumption, various measured data has been monitoring from mechanical rooms of apartment housings with district heating system in Ko-yang district, Kyung-gi province to data gathering place(University) in Seoul through the internet on the hourly basis. Since 1970s, the insulation standard has been improved through irregular revision many times. Thus, this paper is to show how the heating energy consumption were effected by the variation of insulation standard of residential buildings in Korea. In other words, the purpose of this paper is to understand the effect of the enhancement of overall transmittance coefficient(insulation standard) upon the heating energy consumption of residential buildings. Futhermore, it can be suggested as the basic data assessing the policy measures for heating energy savings in apartment housings.