• 제목/요약/키워드: Floor Heating System

검색결과 278건 처리시간 0.021초

Cooling and Heating Performance Evaluation of a GSHP System (지열원 열펌프 시스템의 냉${\cdot}$난방 성능 평가)

  • Sohn Byong Hu;Cho Chung-Sik;Shin Hyun-Jun;An Hyung-Jun
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • 제17권1호
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    • pp.71-81
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    • 2005

  • The main objective of the present study is to investigate the performance characteristics of a ground-source heat pump(GSHP) system with a 130 m vertical and 62 mm nominal diameter U-tube ground heat exchanger. In order to evaluate the performance analysis, the ground-source heat pump connected to a test room with $90\;m^2$ floor area in the Korea Institute of Construction $Technology(37^{\circ}39'N,\;126^{\circ}48'E)$ was designed and constructed. This ground-source heat pump system mainly consisted of ground heat exchanger, indoor heat pumps and measuring devices. The cooling and heating loads of the test room were 5.5 and 7.2 kW at design conditions, respectively. The experimental results were obtained from July 2, 2003 to July 1, 2004. The cooling and heating performance coefficients of the system were determined from the measured data. The average cooling and heating COPs for the system were obtained to be 4.90 and 3.96, respectively. The temperature variations in ground and the ground heat exchanger pipe surface at different depths were also measured.

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Changes of Housing Styles in the Anbang of the Traditional Korean Farm House - After 1950 in Kyongki Province - (한국 전통 농가 안방의 주생활 변화과정 - 1950년대 이후 평택군 오성면의 농가를 중심으로 -)

  • 고도임
    • Journal of the Korean Home Economics Association
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    • 제31권3호
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    • pp.197-212
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    • 1993

  • The purpose of this study was to find out the physical change of the farm house and its anbang(the main room : master bed room), to identify the behavioral changes : activity and awareness of anbang, and to clarify the relationship between the physical changes of the farm house, and the behavioral changes of housing life-style in the anbang space. Bibliographical studies, cultural approaches and field survey method with questionnaire were used to collect data from 55 residents of Anwhari and Yangkyori in Pyong Teck Koon. Tables and drawings were made to analyze the data. The major findings were 1) the heating system of the ondol anbang. The most popular type is the double heating system(new pipes added to the traditional ondol). This combination ondol system brought some conviniences to the farmers. This change in structure of the ondol were of four types : Complete change in style, enlarged-completely changed style, partially changed style, enlarged-partially changed style. 2) from 1960 through 1970 lighting of the anbang changed room oil lamp to electricity. 3) the finishing material of the anbang floor changed from traditional oil paper and straw mats to vinyl flooring. 4) Traditional furniture and small decor items are gradually disappearing and are being replaced by modern items. 5) The awareness and actual use of the ondol anbang has not much changed from the multi-functional and sacred space of daily living : which are the characteristics of Korean traditional ondol anbang. The biggest consistency in the ondol anbang is the heating system of the floor, which is the characteristic of ondol culture in Korea. This system will continue regardless of time and place in Korea.

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Comparison of Thermal Environment in Livingroom between Korea and Japan (바닥 난방을 사용하는 주택내 거실 온열 환경의 한일비교)

  • Lee, Min-Jung;Chun, Chung-Yoon
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 한국주거학회 2003년도 정기총회 및 추계학술대회
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    • pp.47-51
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    • 2003

  • In this paper, we compared the thermal environment in the livingroom with panel heating system of Korea and Japan. The houses are two apartments and two single houses in Korea, and two apartments in Japan. The outdoor temperatures, indoor air temperatures, surface temperatures on floor and humidities were measured. The survey to the residents and recording of operation were also collected. The results were as follows.1. The Korean houses are warmer and drier(approximately 23$^{\circ}$C, 38%) than those of Japan.(approximately 20$^{\circ}$C, 57%). And indoor temperaures of Korean apartment are stabie. 2.The residents in Japan put on and off the switches of the heating system frequently.

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