Please use this identifier to cite or link to this item: http://ktisis.cut.ac.cy/handle/10488/7624
Title: Ground heat exchangers-A review of systems, models and applications
Authors: Florides, Georgios A. 
Kalogirou, Soteris A. 
Florides, Georgios A. 
Kalogirou, Soteris A. 
Keywords: Heat exchangers
Buildings
Cooling
Ground source heat pump systems
Heating
Issue Date: 2007
Publisher: Elsevier
Source: Renewable energy, 2007, Volume 32, Issue 15, Pages 2461–2478
Abstract: The temperature at a certain depth in the ground remains nearly constant throughout the year and the ground capacitance is regarded as a passive means of heating and cooling of buildings. To exploit effectively the heat capacity of the ground, a heat-exchanger system has to be constructed. This is usually an array of buried pipes running along the length of a building, a nearby field or buried vertically into the ground. A circulating medium (water or air) is used in summer to extract heat from the hot environment of the building and dump it to the ground and vice versa in winter. A heat pump may also be coupled to the ground heat exchanger to increase its efficiency. In the literature, several calculation models are found for ground heat exchangers. The main input data are the geometrical characteristics of the system, the thermal characteristics of the ground, the thermal characteristics of the pipe and the undisturbed ground temperature during the operation of the system. During the first stages of the geothermal systems study, one-dimensional models were devised which were replaced by two-dimensional models during the 1990s and three-dimensional systems during recent years. The present models are further refined and can accommodate for any type of grid geometry that may give greater detail of the temperature variation around the pipes and in the ground. Monitoring systems have been set up to test various prototype constructions with satisfactory results
URI: http://ktisis.cut.ac.cy/handle/10488/7624
ISSN: 0960-1481
DOI: 10.1016/j.renene.2006.12.014
Rights: Copyright © 2007 Elsevier Ltd. All rights reserved
Appears in Collections:Άρθρα/Articles

Show full item record

SCOPUSTM   
Citations 1

264
checked on Apr 22, 2017

WEB OF SCIENCETM
Citations 1

214
checked on Apr 20, 2017

Page view(s)

12
Last Week
1
Last month
checked on May 23, 2017

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.