The Shading Coefficient and the U-value of a Naturally Ventilated Double-skin Fa??ade Wall in Hot and Humid Climate

Abstract

Article in Proceeding Book of International Seminar on Architecture in Urbanized Maritime Culture 2013, and the 3rd International Conference on Environment, Engineering, Economic, Safety, and Health (3rd CONVEEESH) at Hasanuddin University, Makassar, Indonesia, 6-7 September 2013.The overall heat transfer coefficient (U-value) and the shading coefficient (SC-value) are\ud substantial properties of double-skin fa??ade. They are importantly required for energy-use estimation, particularly for heat load calculation of the air-conditioning system. The\ud determination of the U-value and the SC-value of double-skin fa??ade was done by numerical simulation employing FORTRAN for the one-year duration. By utilizing the least square method, the equation of U-value and SC-value can be determined to define the Uperiod and SCperiod of double-skin fa??ade. The SC-value of the cases varied from 0.16 to 0.20 [-], and the U-value varied from 3.37 to 3.66 [W/m2.k