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Effect of phase change material on passive thermal heating of a greenhouse

✍ Scribed by Nisha Kumari; G. N. Tiwari; M. S. Sodha


Publisher
John Wiley and Sons
Year
2006
Tongue
English
Weight
193 KB
Volume
30
Category
Article
ISSN
0363-907X

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✦ Synopsis


In this study, a periodic analysis of a greenhouse with combination of phase change material (PCM) and insulation as a north wall has been developed for thermal heating. The thermal model is based on Fourier analysis. Effect of distribution of PCM thickness on plant and room air temperature has been studied in detail. The plant and room air temperature have been evaluated with and without north wall. Numerical computations have been carried out for a typical winter day of New Delhi. On the basis of numerical results, it is inferred that (i) there is a significant effect of PCM north wall and heat capacity of plant temperature during off-sunshine hour due to storage effect and (ii) the rate of heat flux inside greenhouse from north wall is maximum for least thickness of PCM.


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