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Feb 14, 2024Keywords:
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Numerical study of a new earth-air heat exchanger configuration designed for Sahara climates
Abstract
Thermal performance for cooling and heating in the building can be achieved by the novel shape of the earth–air heat exchanger (EAHE). In a heavily populated area such as City, Due to the limited ground space. EAHE systems are rarely used, for most residential and commercial utilization. This paper presents a numerical investigation of the thermal performance of a spiral-shaped configuration Spiral Earth to Air Heat Exchanger SEAHE intended for the summer cooling in hot and arid regions of Algeria. A parametric analysis of the SEAHE has been performed to investigate the effect of diameter, depth, pipe length and of airflow rate on the outlet air in the exchanger. Results show that the specific heat exchange is used to cool in an arid zone (south-east of Algeria). When the ambient temperature varies between 40°C and 45 °C, the cooling temperature varies between 25°C and 29 °C. Temperature difference inlet and outlet air exchanger 18°C, these values are quite acceptable with for cooling the building.
