동적 해석법에 의한 벽체 열전도 저항 현장 평가에 관한 연구 ( Evaluation of R value of Wall on Site by Dynamic Interpretation Method )

In measuring R value on site the analysis method to obtain value appropriate to precise one regardless of variation of temprature and to reduce measurment time is required. In this study, dynamic analysis method was studied as the analysis method of Diagnostic Equipment for In-situ Thermal Testing of the Exterior Envelopes in Building and evaluated through experiments. For insulated model wall, the results calculated by dynamic method were higher than that of Quasi-Steady analysis method or estimate accurate value by 7% at the case of constant indoor temperature and 13% at the case of unstable indoor temperature. We can expect to obtain accurate approximation (less than 10 %) before quasi-steady state.