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Journal of Soil Sciences and Agricultural Engineering
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Alghannam, A. (2012). USE OF CLOSED SYSTEM OF AIR THROUGH EARTH TUBES AS AN ENVIRONMENT FRIEND FOR HEATING GREENHOUSES. Journal of Soil Sciences and Agricultural Engineering, 3(3), 419-427. doi: 10.21608/jssae.2012.53869
A. O. Alghannam. "USE OF CLOSED SYSTEM OF AIR THROUGH EARTH TUBES AS AN ENVIRONMENT FRIEND FOR HEATING GREENHOUSES". Journal of Soil Sciences and Agricultural Engineering, 3, 3, 2012, 419-427. doi: 10.21608/jssae.2012.53869
Alghannam, A. (2012). 'USE OF CLOSED SYSTEM OF AIR THROUGH EARTH TUBES AS AN ENVIRONMENT FRIEND FOR HEATING GREENHOUSES', Journal of Soil Sciences and Agricultural Engineering, 3(3), pp. 419-427. doi: 10.21608/jssae.2012.53869
Alghannam, A. USE OF CLOSED SYSTEM OF AIR THROUGH EARTH TUBES AS AN ENVIRONMENT FRIEND FOR HEATING GREENHOUSES. Journal of Soil Sciences and Agricultural Engineering, 2012; 3(3): 419-427. doi: 10.21608/jssae.2012.53869

USE OF CLOSED SYSTEM OF AIR THROUGH EARTH TUBES AS AN ENVIRONMENT FRIEND FOR HEATING GREENHOUSES

Article 2, Volume 3, Issue 3, March 2012, Page 419-427  XML PDF (622.3 K)
Document Type: Original Article
DOI: 10.21608/jssae.2012.53869
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Author
A. O. Alghannam
Agric. Systems Eng. Dept., College of Agric. and Food Sci., King Faisal Univ. Saudi Arabia.
Abstract
This research aims to study the use of the closed system of air through earth tubes for heating greenhouses. This had been achieved by a field study using plastic earth tubes under the hot climatic conditions of the region under study. An elliptical shaped greenhouse and its accessories were constructed according to the appropriate engineering specifications of the experiment site. Results showed that the heating closed systems of air through plastic earth tubes can be used independently for heating the greenhouse in order to attain the suitable temperature for plant growth. The performance of the heating system was capable to increase temperatures during winter season from -1.1°C-11.4°C i.e. by a magnitude of 12.5°C. Also the system can be used independently when the temperature during winter is not substantially reduced or as a complementary to other heating systems in case of extreme cold.
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