Assessment of Environment Control in Arid Area Green house coupled with Earth Tube Heat Exchanger
Kamlesh R. Jethva 1 * and Girja Sharan 2
http://dx.doi.org/10.12944/CWE.11.1.30
In hot arid regions, yields are low and unstable, growing season limited to one. Greenhouses can stabilize and improve yields and extend seasons. But their adoption is impeded by the requirement of large amount of water for (evaporative) cooling. Arid Area Greenhouse (AAG) is developed to reduce or eliminate this need by employing earth-tube-heat-exchanger (ETHE). ETHE was able to heat the greenhouse from 9°C to 22-23°C in 30 minutes in the cold winter nights. Static ventilation along with shading was effective for day time to control till early March. Subsequently ETHE was also operated. Yield of tomato in Arid Area Greenhouse was 1.5 to 2 times and water saving in AAG was 44% of that in open-field condition. ETHE and natural ventilation hold promise as environmental control devices for greenhouses in hot arid regions.
Copy the following to cite this article:
Jethva K. R, Sharan G. Assessment of Environment Control in Arid Area Greenhouse coupled with Earth Tube Heat Exchanger. Curr World Environ 2016;11(1) DOI:http://dx.doi.org/10.12944/CWE.11.1.30
Copy the following to cite this URL:
Jethva K. R, Sharan G. Assessment of Environment Control in Arid Area Greenhouse coupled with Earth Tube Heat Exchanger. Curr World Environ 2016;11(1). Available from: http://www.cwejournal.org/?p=13965
