Abstract:
This paper reports the experimental investigation of Double Clear Glass Wall (DCGW) and Double Translucent Glass Wall (DTGW) developed by Faculty of Architecture and Design of King Mongkuts University of Technology North Bangkok (KMUTNB). The study investigated to the thermal performance of both configurations. The DCGW composed of two layers, the outer and inner sides is clear glass. The different of DTGW is translucent glass installed outer side. The clear glass and translucent glass are same size; wide 60 cm, long 200 cm and 6 mm thickness. They are opening air vents on the bottom (room side) and the top (ambient side). The size of opening was 0.14 x 0.60 m².
Experimental results were showed the average indoor illuminance of DTGW and DCGW was higher than the standard illuminance by about 1,500 lux and 2,000 lux, respectively. The air flow rate and number of air change by about 0.0025- 0.004 m3/s (9-14.4 m3/hr) and 2-14 ACH, respectively. The façade wall performance was also simulated with COMSOLTM Multiphysics a commercial software. Simulations results agreed reasonably with experimental ones. The proposed configuration of the DTGW is recommended for residential and office buildings.