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http://hdl.handle.net/2074/1501
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| Title: | Modeling and comparative thermal performance of ground air collector and earth air heat exchanger for heating of greenhouse |
| Authors: | Ghosal, M K
Tiwari, G N
Das, D K
Pandey, K P |
| Keywords: | Greenhouse
Solar energy
Ground air collector
Earth air heat exchanger
Thermal load leveling
Modeling |
| Issue Date: | 2005 |
| Citation: | Energy and Buildings, 37(6), 613-621 |
| Abstract: | The potential of using the stored thermal energy of ground for space heating has been investigated with the help of two buried pipe systems, i.e., ground air collector and earth air heat exchanger, integrated with the greenhouse located in the premises of Indian Institute of Technology, Delhi, India. The total length of the buried pipes in both the arrangements was kept same for making a comparative study. A complete numerical model has been developed to predict and compare their thermal performance for choosing a suitable heating method in the composite climate of India. Experiments were conducted extensively during winter period from November 2002 to March 2003, but the model was validated against the clear and sunny days. Performance of these two arrangements was compared in terms of thermal load leveling and total heating potential. Temperatures of greenhouse air with ground air collector were observed to be 2–3 °C higher than those with earth air heat exchanger. The temperature fl... |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/1501 |
| Appears in Collections: | Energy Studies [CES]
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| ghosalmod2005.pdf | | 557Kb | Adobe PDF | View/Open |
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