Modelling and experimental study for winter performance of an earth to air heat exchanger: an alternative energy source for a greenhouse.
Author(s) : GHOSAL M. K., NAYAK S., TIWARI G. N., et al.
Type of article: Article
Summary
A complete numerical model has been developed to investigate the potential of using the stored thermal energy of ground for space heating with the help of an earth to air heat exchanger (EAHE) system integrated with the greenhouse located in the premises of IIT, Delhi, India. The analysis was based on the quasi-steady state condition. Experiments were conducted extensively during the winter period from November 2002 to March 2003, but the model, developed, was validated against the clear and sunny days. The performance of the system was evaluated in terms of total heating potential obtained from EAHE, COP and thermal load levelling. The heating potential of the system has also been standardized by the characteristic curve for a greenhouse similar to that of the flat plate collector. Temperatures of the greenhouse air were found to be on an average 7-8°C more than the same greenhouse when operating without an earth air heat exchanger. The temperature fluctuations of the greenhouse air were also less when operated with EAHE as compared to without EAHE. Predicted and measured values of the greenhouse air temperature in the model developed, exhibited fair agreement.
Details
- Original title: Modelling and experimental study for winter performance of an earth to air heat exchanger: an alternative energy source for a greenhouse.
- Record ID : 2008-2705
- Languages: English
- Source: Agric. Eng. Int., CIGR E-J. - vol. 10 - n. EE 07 012
- Publication date: 2008/01
Links
See the source
-
Alternative heat exchanger for enclosed spaces.
- Author(s) : JONG T. de, et al.
- Date : 1992/05
- Languages : Dutch
- Source: Klimaatbeheersing - vol. 21 - n. 5
View record
-
The effects of antifreeze in the circulating wa...
- Author(s) : YANG X., ZHOU X., ZHANG X.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
View record
-
Waterside economizing in data centers: design a...
- Author(s) : STEIN J.
- Date : 2009/06/21
- Languages : English
- Source: 2009 ASHRAE Annual Conference CD. Transactions papers presented at the 2009 ASHRAE Annual Conference: Louisville, KY, June 2009. Volume 115, part 2.
View record
-
Refrigerant migration modeling during shut-down...
- Author(s) : LI B., PEUKER S., ALLEYNE A., et al.
- Date : 2010/07/12
- Languages : English
- Source: 2010 Purdue Conferences. 13th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
View record
-
Neues Wärmeübertrager-Testzentrum bei Küba in B...
- Date : 2003/09
- Languages : German
- Source: Kälte + Klimatechnik (Die) - vol. 56 - n. 9
View record