TY - JOUR
TI - Geothermal heat potential - the source for heating greenhouses in Southestern Europe
AU - Urbancl Danijela
AU - Trop Peter
AU - Goričanec Darko
JN - Thermal Science
PY - 2016
VL - 20
IS - 4
SP - 1061
EP - 1071
PT - Article
AB - The paper presents economically evaluated solutions for heating greenhouses  with geothermal potential, if the same greenhouse is placed in two different  locations in Southeastern Europe, one in Slovenia and the other in Serbia.  The direct geothermal water exploitation using heat exchangers is presented  and the remaining heat potential of already used geothermal water is  exploited using high temperature heat pumps. Energy demands for heating  greenhouses are calculated considering climatic parameters of both locations.  Furthermore, different constructions materials are taken into account, and  energy demands are evaluated if the same greenhouse is made of 4 mm toughened  single glass, double insulated glass or polycarbonate plates. The results  show that the geothermal energy usage is economically feasible in both  locations, because payback periods are in range from two to almost eight  years for different scenarios.