This paper presents the experience of using systems such as Earth Tube Heat Exchangers for environmental control in dwellings of zoo animals, and greenhouse in arid area of Kutch. Mention has also been made of the ongoing work to install more such systems in the dairy cattle housing. [W.P....

A two-phase project is underway to develop greenhouse systems suitable for water scarce, semi-arid region of north-west India (Kutch). The first phase aimed at studying the effectiveness of natural ventilation and earth-tube-heat-exchanger for environmental control, in place of fan-pads commonly...