Design Energy Saving House by Natural Ventilation in Thailand.
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Abstract
This paper reports the experimental investigation and designing of Energy saving House by natural ventilation. The Gypsum Wall (GW) with to Metal Sheet Roof (MSR). Tinted Glass with Gypsum Wall (TGGW) with to Metal Sheet Roof with Perforated Ceiling (MSRPC). And the Solar Chimney Wall with Daylighting (SC-WD) with to Solar Chimney Metal Sheet Roof with Perforated Ceiling (SC-MSRPC) developed by Faculty Department of Mechanical Engineering, Faculty Industrial Education Rajamangala University of Technology Suvarnabhumi. The experimental study of three test houses. The dimension of the testing boxes is 120 X 120 cm with 120 cm height and the length of roof along slope is 160 cm. The wall houses were made of white painting gypsum board. The GW & MSR is single layer normal metal sheet. The TGGW & MSRPC uses Perforated Ceiling and open void for ventilation. The SC-WD & SC-MSRPC same TGGW & MSRPC but developed panels along the roof degrees. The slope of the angle roof is 30°.The experimental results were showed the room temperature of GW & MSR is always higher than the TGGW & MSRPC and SC-WD & SC-MSRPC, respectively. Observe that, during 12:00 - 18:00 the temperature difference between the attics space with room temperatures from ambient temperature of GW & MSR higher than TGGW & MSRPC and SC-WD & SC-MSRPC respectively due to the effect of attic space cannot ventilated. The average indoor illuminance of SC-WD & SC-MSRPC was higher than the standard illuminance by about 310 -910 lux. The air flow rate and number of air change by about 0.0025- 0.004 m3/s (9-14 m3/hr) and 2-8.5 ACH, respectively. The SC-WD & SC-MSRPC should be promoted for architectural and engineering designs.
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