Abstract
This research presents an improvement of the air change rate efficiency for a closed system broiler house in minimum ventilation situation. The multi inlet system was installed in the broiler house in order to improve the air change rate. Two closed system broiler house, which were a 14x120x2.4 m3 rectangular cross-section, were used to test in the experiment. The experiment and simulation were conducted in order to know the air velocity, and the comparison of both results was done. From the experimental result, it was found that the air velocity of broiler house with the multi-inlets system was higher than the house without multi-inlets system. The mathematical simulation result was also showed the similar result with that of experiment. The multi-inlet system can increase the area, where the air velocity was in standard and above standard duration. Thus, the air change rate was increased from 0.26 to 0.29 air change/min for the broiler house.
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