NUMERICAL INVESTIGATION TO EVALUATE HEAT REDUCTION OF USING BURIED WATER PIPE INSIDE EXTERNAL WALL | ||
| AL-TAQANI | ||
| Article 1, Volume 25, Issue 1, March 2012, Pages 0-0 | ||
| Author | ||
| Ahmed a. m. saleh | ||
| Abstract | ||
| A numerical study has been done to evaluate the utilization of a water pipe buried inside an external wall to reduce the heat gain and prevent the transmission of heat energy inside the conditioning space in summer season. The result of this paper shows that the reduction in heat gain could be occurred with specific values of parameters like a number of pipes per square meter, a ratio of pipe diameter to the wall thickness, and a pipe inlet water temperature. Comparing with normal wall (without pipes), the result shows a significant reduction in heat gain which is about 82% when number of pipes per meter of wall length is 3.0 , the ratio of pipe diameter to the wall thickness (D/W) is 0.20, and the water inlet temperature is 25°C while the minimum ratio of reduction 24% is achieved when a number of pipes per meter , the ratio of pipe diameter to the wall thickness, and the water inlet temperature are 3.0, 0.2, 20°C respectively. The results also show that there is a very small effect of pipe center position inside the wall on the final heat transmission. | ||
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