Abstract
This study is focused on the evaluation of thermal output of TABS (Thermally Activated Building System). The aim of this study is to evaluate TABS in terms of the temperature difference between heating medium supply temperature (<TEX>$T_s$</TEX>) and return temperature (<TEX>$T_r$</TEX>), thermal output and the surface temperature distribution according to the design flow rate and the design flow temperature. Through the transient heat transfer simulation using temperature calculation using Crank-Nicolson FDM using Physibel Voltra 6.0 W, the temperature difference between <TEX>$T_s$</TEX> and ��<TEX>$T_r$</TEX>, thermal output and the surface temperature distribution of specific TABS was calculated and evaluated. The results show that specific thermal output and temperature difference at <TEX>$60^{\circ}C$</TEX> of supply water temperature were about 162 <TEX>$W/m^2$</TEX>, <TEX>$13.6^{\circ}C$</TEX> respectively.
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