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냉장고 가스켓 형상 변화에 따른 냉장고 열손실 저감 효과
하지수(Ji Soo Ha),정광수(Kwang Soo Jung),김태권(Tae Kwon Kim),김경호(Kyung Ho Kim),정관식(Gwan Sik Jeong),김석로(Seok Ro Kim) 대한설비공학회 2008 대한설비공학회 학술발표대회논문집 Vol.2008 No.2
Insulation of refrigerator with gasket material near door becomes the technical point at the aspect of heat loss and energy efficiency. Heat loss of refrigerator through the gasket is nearly 30%. In this paper, quantitative evaluation method of heat loss through gasket in established suggest the method for the improvement of heat loss. To analyze the heat transfer, we have used the common software Fluent that is used to CFD. Because of using the convection coefficient of heat transfer, we have solved only the equation of energy for heat transfer. As a result, we have known that heat loss flows through the heat flux vector and that the heat gathered out of the outside iron plate is transferred inner part through the gasket and ABS, etc. Through the result of the numerical simulation that use sub-gasket, we have known that we are able to reduce the heat loss about 20~40%. when we applied that sub-gasket on a real refrigerator, the power consumption had reduced about 4.76%. In addition, when we applied a more improved sub-gasket on a real refrigerator and measured the power of the refrigerator the power consumption does reduce about 3% and we will try to apply the improved sub-gasket on a new models of refrigerator.
한정(Han Jeong),정광수(Jeong Kwang-Su),이정수(Lee Jeong-Soo) 대한건축학회 2009 대한건축학회논문집 Vol.25 No.9
After Saemaul Undong (New Village Movement), our society has been concerned problems about dwelling quality as well as dwelling quantity of rural housing. In case of Yesan-gun, this study arranged architectural characteristic of units and analyzed a characteristic of contemporary residential satisfaction through dweller survey. For the purposes, this study was carried out following process. For theoretical consideration, this study inquired into the characteristic of rural dwelling environment and the public works of our government and society. For case study, this study selects an example of rural housing that is 「Yesan Modernized Model Village」. With this, it carried out comparative analysis with the ‘95 Standard Plan Drift for Farming & Fishing Village Housing. According to dweller survey, this study surveyed general characteristics of dwellers and analyzed residential satisfaction and requirement. In spite of it's location, the farm households that are engaging in agriculture were less than nonagricultural households. And the application ratio of ‘95 Standard Plan Drift was low relatively. Also, improvement intention for residential satisfaction centered on consumable elements and outside space.