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박승병,한민철,한천구 청주대학교 산업과학연구소 2008 産業科學硏究 Vol.25 No.2
This paper is to provide the results of VE(Value Engineering) analysis at the design phase of apartment considering scaled paired comparison method. Scaled paired comparison method is applied to evaluate defined function quantitatively. VE process is conducted according to job plan proposed by Society for American Value Engineering(SAVE). Based on VE proposal, totally, 163 works of function analysis, 333 items of creating ideas, and 193 achievements of ideas were proposed. Besides this, 46 works of increasing values and cost reduction for 103 works and 10,040,000 thousands won were achieved from the paper.
박승병(Seung Byung Park),이상혁(Sang-Hyeok Lee),최진일(Jinnil Choi),최종민(Jong Min Choi) 한국지열·수열에너지학회 2015 한국지열에너지학회논문집 Vol.11 No.4
The efficiency, reliability and performance of any heat pump unit can only be ascertained after it has been tested and rated. For this reason, specific facilities, equiped with testing plants are built. Heat pump calorimeter is the facilities used by most of these testing facilities in their rating and certification process. The ultimate function of calorimeters is to, control and maintain the constant standard test conditions (indoor/outdoor entering temperatures and flow rate etc) during testing period. In this study, the test standards of heat pump unit and the structure of the calorimeter are surveyed. In addition, this study analyzes the total energy consumption of a water to water heat pump calorimeter. Heat pump calorimeter consumed much energy to excute the heat pump tests. The energy consumption of the calorimeter was higher than the heat pump unit, and it was increased as the heat pump unit capacity decreased.
캐스케이드 열펌프의 저단 사이클 충전량 변화에 따른 성능 특성
박승병(Seung Byung Park),최종민(Jong Min Choi) 한국지열·수열에너지학회 2015 한국지열에너지학회논문집 Vol.11 No.1
In this study, the optimization and performance characteristics of a cascade heat pump system was analyzed with the variation of low stage refrigerant charge amount. The cascade heat pump was designed and constructed with R134a and R410A as the refrigerant for high stage and low stage cycle, respectively. Experiments were conducted by varying the low stage charge amount and the performance characteristics of the cascade heat pump were studied. The refrigerant charge amount of the low stage cycle was varied between the ranges of -15% and +10% of the optimum charge amount. The performance variation experienced in the cascade heat pump due to the variation of refrigerant charge amount shows greater effect in the undercharge regions than the overcharge regions. COP reduction in the undercharge region is larger than the decrease in the overcharge region. Some cycle variation such as power consumption and cycle pressure according to low stage refrigerant charge amount showed different trends comparing with those according to high stage refrrgerant charge amount. Therefore, the optimum charge amount of the cascade heat pump should be determined based on the experimental data obtained by the variation of high and low stage refrigerant charge amount.
파주운정지구 A-14 블럭 아파트 건설공사 VE 수행 사례 소개
전충근,박승병,류익선,하민철,한천구 대한건축학회지회연합회 2007 대한건축학회지회연합회 학술발표대회논문집 Vol.2007 No.1
The Korea National Housing Corporation contributes activated value engineering(VE) how to hold a plan VE competition every year. This study introduced VE working results to execute effectively plan VE competition of the Korea National Housing Corporation. A VE Job Plan was based, and the distinction on choice process of phased VE Job Plan was chosen in the stage of VE working process. The executed results due to VE proceeding about " the new construct field of apartment, A-14, Woonjeongjigu, Paju" as the project of a plan VE competition 2006 was to enforce 163 works of functional definitions, 333 items of creating ideas, and 193 achievements of ideas. Besides, VE was proposed about 46 works of increasing values and cost reduction for 103 works and 10,040,000,000 won.