ECONOMIC-POTENTIAL OF VERTICAL GROUND-SOURCE HEAT-PUMPS COMPARED TO AIR-SOURCE AIR-CONDITIONERS IN SOUTH-AFRICA

Authors
PETIT PJ MEYER JP
Citation
Pj. Petit et Jp. Meyer, ECONOMIC-POTENTIAL OF VERTICAL GROUND-SOURCE HEAT-PUMPS COMPARED TO AIR-SOURCE AIR-CONDITIONERS IN SOUTH-AFRICA, Energy, 23(2), 1998, pp. 137-143
Citations number
4
Categorie Soggetti
Energy & Fuels","Engineering, Chemical
Journal title
Energy → ACNP
ISSN journal
03605442
Volume
23
Issue
2
Year of publication
1998
Pages
137 - 143
Database
ISI
SICI code
0360-5442(1998)23:2<137:EOVGHC>2.0.ZU;2-6
Abstract
This study was undertaken to compare the economic viability in Johanne sburg, R.S.A., of vertical ground-source and air-source systems. Capit al costs and optimum borehole length of the ground system were determi ned. Monthly heating and cooling capacities, and COPs were evaluated t o determine running costs. Payback periods, net present values and int ernal rates of return were computed. The vertical ground-source system was marginally cheaper than the air-source counterpart. (C) 1998 Else vier Science Ltd. All rights reserved.