The main objective of this chapter is to provide a fully and comprehensive
introduction to geothermal systems that exploit normal (or swallow) geothermal energy
including construction and designing guidelines. The necessity to decrease power
consumption and consequently cost led to the integration of these systems to cover
heating, cooling and domestic hot water loads in domestic or even industrial facilities.
Basic operational and construction guidelines concerning all possible geothermal plants
(closed or open loop) are provided along with representing drawings. The chapter is
divided into various sections focusing on certain issues. It begins with basic geological
information regarding the ability of the subsoil to absorb or supply heat via the
integrated heat exchanger. Subsequently, a summary on the operation of heat pumps in
general and the advantages of geothermal pumps is provided. Then, the two main
categories of geothermal loops are analyzed: closed loop horizontal or vertical
geothermal exchangers and open loop system installations. Finally, the proposed
methodology to follow when such a system should be designed is discussed, containing
cost elements issues of such systems.
Keywords: Closed Loop, Design, Geothermal Heat Pump, Horizontal System,
Methodology, Normal Geothermy, Open Loop, Swallow Geothermy, Vertical
System.
