Design of an Earth Air Heat Exchanger (EAHE) for Climatic Condition of Chennai, India
G.N. Tiwari*, Vikram Singh, Poonam Joshi, Shyam , Arjun Deo, Prabhakant , Agam Gupta
Identifiers and Pagination:Year: 2014
First Page: 24
Last Page: 34
Publisher Id: TOENVIRJ-8-24
Article History:Received Date: 21/02/2014
Revision Received Date: 26/06/2014
Acceptance Date: 26/06/2014
Electronic publication date: 30/9/2014
Collection year: 2014
open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
In the present work the ground temperature has been validated for climatic condition of Sriperumbudur near Chennai, India to evaluate thermal conductivity and diffusivity of the soil. For the evaluated thermal conductivity of the soil, an EAHE has been designed for a given dimension of room with optimized values of number of air changes, length of pipe, radius of pipe and depth at which heat exchanger to be installed below the surface of the earth. It has been observed that there is a decrease of 5 – 6 °C in the outlet air temperature in summer for a number of 5 air changes with 0.10 m and 21 m optimized diameter and length of pipe respectively.