Horizontal air-to-earth heat exchangers in Northern Italy: testing and application

Earth heat exchange (EHX) through buried horizontal air ducts (EHXair-hor) can be an effective passive/ibryde system to reduce heating and cooling loads in temperate climate zones. This paper shows the results of the authorsmost recent testing and design experience on the field. Conclusions are drawn in relation to the necessity of further monitoring and testing on more complex and variegated EHXair-hor systems.