论文信息 - DYNAMIC SIMULATION OF AN EARTH-TO-AIR HEAT EXCHANGER CONNECTED TO A VILLA TYPE HOUSE IN MARRAKECH

DYNAMIC SIMULATION OF AN EARTH-TO-AIR HEAT EXCHANGER CONNECTED TO A VILLA TYPE HOUSE IN MARRAKECH

This paper deals with a numerical study of the thermal performance of an Earth-to-Air Heat Exchanger (EAHX) connected to a villa type house located in Marrakech suburb. The EAHX consists of 3 parallel and identical PVC pipes of 77.7 m length each and 15 cm inside diameter. The pipes are buried at 2.2-3.5 m depth. Dynamic simulations were carried out for the year 2009 using TRNSYS software (Type 460). Typical air temperatures at the EAHX outlet are in the interval 20-28.8 °C for the hot period of the year (April-August), while for the same period, the maximum ambient air temperature often reaches 44 °C. For the hot period of the year, the EAHX procures a temperature reduction up to 17.6 °C. This study shows that the EAHX is an efficient system for building air refreshment for Marrakech climate.

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