Abstract
The utilization of shallow geothermal energy is well known in several European countries. Even though large parts of the Republic of Croatia show signifi cant potential for its use, the installation of ground source heat pump systems (heat pump and heat exchangers) is slowly progressing. Therefore, a short overview of research published thus far concerning the utilization and assessments of shallow geothermal potential for Croatia was done. In Croatia, there is no agency or government department in charge of collecting and publishing data concerning installations of heat exchangers. Therefore, a study was done to collect the available data on installed closed-loop heat exchangers either from scientifi c research or from personal contacts with drilling companies. Based on the collected data, a map was produced that shows general locations of installed heat exchangers. From the obtained data of installed heat exchanger length, a fi rst assessment of utilizing shallow geothermal potential in Croatia was given.
Highlights
Shallow geothermal energy resourceGeothermal energy is defined as energy stored in the form of heat in the subsurface of solid earth, according to Directive 2009/28/EC (2009)
The exploration and use of shallow geothermal energy has been on the rise in the last decade in the Republic of Croatia
Undisturbed ground temperature can be determined while performing a Thermal Response Test (TRT) and is an important parameter when sizing the heat exchanger system
Summary
Geothermal energy is defined as energy stored in the form of heat in the subsurface of solid earth, according to Directive 2009/28/EC (2009). Face along with heat flow from deep-earth origins, according to Banks (2012) and Tinti et al (2017) This shallow geothermal energy can be extracted by using open or closed heat pump systems. Borehole heat exchangers and ground source heat pumps form a system that uses the almost constant temperature of the ground throughout the year, in order to heat or cool residential or commercial buildings (Javed et al, 2011). Such systems can be used to prepare domestic hot water (DHW) for users. Data on installed heat exchangers was collected, using up-to-date research as well as contacts with companies which deal with the installation of such systems
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
