This paper discusses the use of a cool tube as an air-to-earth heat exchanger that is used to reduce the HVAC requirements of a building. The cooling effect of the cool tube was analytically investigated, considering sensible and latent heat. The thermal characteristics of a cool tube are evaluated in Part 1 of this paper, taking into account only sensible heat. A method to utilize a wet cool tube was proposed for effective use.
In order to determine the condition of the tube surface, the thermal and hygric behavior of cool tubes was analyzed using a model that considers simultaneous heat and moisture transfer in the ground. In regions with a climate such as that of Osaka, Japan, the tube surface is found to be practically wet throughout the year.
Units: SI
Citation: Symposium, ASHRAE Transactions, 1998, Vol. 104, Part 2, Toronto, ON
Product Details
- Published:
- 1998
- Number of Pages:
- 10
- File Size:
- 1 file , 290 KB
- Product Code(s):
- D-7744
