International Journal of Sustainable Engineering, Volume (1), No (1), Year (2013-8) , Pages (1-8)

Title : ( The effect of greenhouse vegetation coverage and area on the performance of an earth-to-air heatexchanger for heating and cooling modes )

Authors: mohsen mohammadi moghareb , M. Hossein Abbaspour Fard , morteza goldani , Bagher Emadi ,

Citation: BibTeX | EndNote

The underground temperature at a depth of about 3–4m is almost constant all the year round. In summer, the underground temperature is lower than the ambient temperature, but in winter it is vice versa. This potentiality is considered for greenhouse cooling and heating by using an earth-to-air heat exchanger (EAHE). This paper considers the effects of two parameters as independent variables including the area of greenhouse and the percentage of vegetation coverage inside the greenhouse on the performance of an EAHE system during both cooling and heating modes. The inside temperature, the thermal energy exchange and the coefficient of performance (COP) of the system were considered as dependent variables. The results showed that both greenhouse area and the percentage of vegetation coverage inside the greenhouse had significant effects on the performance of the EAHE system during both cooling and heating modes. However, the COP of the EAHE system was higher in the cooling mode (4.32) than during the heating mode (1.01). The percentage of vegetation coverage negatively affected the performance of the EAHE system in the cooling mode. However, the performance of the EAHE system improved with the increase in the percentage of vegetation coverage during the heating mode.

Keywords

temperature; energy exchange; cooling; heat exchanger;
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@article{paperid:1038055,
author = {Mohammadi Moghareb, Mohsen and Abbaspour Fard, M. Hossein and Goldani, Morteza and Emadi, Bagher},
title = {The effect of greenhouse vegetation coverage and area on the performance of an earth-to-air heatexchanger for heating and cooling modes},
journal = {International Journal of Sustainable Engineering},
year = {2013},
volume = {1},
number = {1},
month = {August},
issn = {1939-7038},
pages = {1--8},
numpages = {7},
keywords = {temperature; energy exchange; cooling; heat exchanger; heating},
}

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%0 Journal Article
%T The effect of greenhouse vegetation coverage and area on the performance of an earth-to-air heatexchanger for heating and cooling modes
%A Mohammadi Moghareb, Mohsen
%A Abbaspour Fard, M. Hossein
%A Goldani, Morteza
%A Emadi, Bagher
%J International Journal of Sustainable Engineering
%@ 1939-7038
%D 2013

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