Systematic Prediction of Outlet Temperature of a Buried air/soil Heat Exchanger

Abstract

In this work, we studied the systematic prediction of the air outlet temperature in an PVC air/soil heat exchanger buried to a depth of 03 m, designed to cooling the air in summer, heating in winter in the arid and semi-arid regions. The dynamic and thermal behavior of the system is governed by three mathematical models, model of ambient temperature, soil and model of the air outlet temperature in the buried exchanger. A calculation code was written under Matlab 9.0, which allowed following as a function of time, the evolution of the exit temperature of the air as a function of the outside and the soil temperatures.