Abstract
Many rabbit housing in Egypt were constructed without systematic design models from the viewpoint of sizing evaporative pad cooling system were determined by subtle mathematical models to solve this problem. Four commercial rabbit houses located at 30.95°N and 31.09°E and the pad fan evaporative cooling system were used to reduce the energy and side effects of heat stress on rabbit housing during summer 2017. Three different mathematical forms these forms were ASHRAE form (form 1); airflow depended upon the volume of the house (form 2), and heat balance (from 3). The house that operated with pad fan evaporative cooling and full pad area facing the fan had the best conditions for rabbits and the highest values of cooling performance. Therefore, the actual results for the previous house were the lowest indoor temperature was 26.85°C, the highest indoor relative humidity was 67.83 %, the highest saturation efficiency of cooling was 76.28%, the highest cooling potential was 7.25 °C and the highest value of the temperature-humidity index was 25.6 °C. Finally, when compared the obtained results from these houses with the results from calculation models, can found that these houses related nearly with the heat balance model.
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