습식ㆍ 바닥난방시스템 성능 비교평가에 관한 연구

The aim of the research is to analyze the capacity of WetㆍDry floor heating systems. 1) In order to reach indoor set temperature (30℃) after boiler operation, wet floor heating system take 391 minutes. on the other hand dry floor heating system take 89 minutes. 2) Maximum difference between the supply and return temperature (ΔT) is 7.6℃ for wet type system and 6.5℃ for dry type system. 3) Wet type system is advantageous for retaining a comfortable temperature (31℃) 1) of the floor surface compared with dry type system. Average floor surface temperature of wet type is 33℃ (max : 39.3℃) and that of dry type is 36℃ (max : 40.1℃). 4) Energy-saving rate of dry type go up to 73.2% after boiler operation for about 7 hours 43 minutes and then it is gently reduced by 30∼42.9% after 47 hours.