A Study on Natural Solar Heating System

自然形 太陽熱暖房裝置 에 관한 硏究

Heat transfer modeling was performed in order to study a natural solar heating system. Simulation of the system was obtained by writing instantaneous energy balance equations for the various components. A thermal-network provided the means for systematically accounting for each of the energy balances. The resulting balances were solved using time varying inputs, such as solar gain and ambient temperature, and the initial temperatures of the components. Parametric heat transfer calculations were performed. Results are discussed which illustrate several effects, including variation of thermal capacity of the storage wall, installation of night insulation, installation of a thermally controlled fan between the sunspace and room, and variation of the width of the sunspace.

본 연구에서는 선정한 난방모델에 대하여 열회로망을 만들어 각 구성성분에 대하여 에너지평형식을 세워 시뮬레이션 모델을 구하고 여기에 경계조건과 초기조건을 대입하여 수치해석으로 푼 결과를 실측치와 비교하였다. 또한 축열벽의 열용량변화, 통기구의 개폐, 통기구에 자동온도조절 홴(fan)의 설치, 야간단열의 설치 및 온실크기 의 변화 등이 온방온도에 미치는 영향을 규명하였다.