Earth-to-air heat exchanger for air conditioning in a Colombian tropical weather

In a recent theoretical study, a passive cooling system using an earth-to-air heat exchanger (EAHE) was modelled for the Colombian tropical weather. The earth-to-air heat exchanger (EAHE) is a passive cooling technology which takes advantage of the fact that at a certain depth, the ground temperature is almost constant throughout the year, allowing it to be used as a heat sink.