Review

Direct expansion ground source heat pumps for heating and cooling

Abdeen Mustafa Omer

Abstract

This article is an introduction to the energy problem and the possible saving that can be achieved through improving building performance and the use of ground energy sources. The relevance and importance of the study is discussed in the paper, which, also, highlights the objectives of the study, and the scope of the theme. This study discusses some of the current activity in the GSHPs field. The basic system and several variations for buildings are presented along with examples of systems in operation. Finally, the GCHP is presented as an alternative that is able to counter much of the criticism leveled by the natural gas industry toward conventional heat pumps. Several advantages and disadvantages are listed. Operating and installation costs are briefly discussed.

Key words: Building, GCHP, energy, pumping, cooling, heating.

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