American Journal of Applied Sciences

Thermal Energy Storage in the Ground of a Greenhouse by the Polypropylene Capillary Heat Exchanger

M. Lazâar, S. Koôli, M. Hazami, A. Farhat and A. Belghith

DOI : 10.3844/ajassp.2008.1769.1772

American Journal of Applied Sciences

Volume 5, Issue 12

Pages 1769-1772

Abstract

The problem of temperature inversion is one of solar origin principal problems about which the cultures under shelters complain. Indeed, for the winter period, the temperature under greenhouse is very low at night and it is rather high during the day in summer. Consequently, the heating of the greenhouses is essential. In this work, we studied the advisability of using two exchangers coupled between them to manage thermal energy in a greenhouse. The first system is a battery of plaits with capillary tubes buried under ground with a depth of 70 cm. The second is an air exchanger based on plastic tubes black known as agrotherms suspended with two meters and half height. The hot water, which circulates in the exchangers, is provided by the hot-water tank of the electrosolar power station of the Center of Energy Researches and Technologies (CRTEn) from Tunisia.

Copyright

© 2008 M. Lazâar, S. Koôli, M. Hazami, A. Farhat and A. Belghith. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.