EXERGOECONOMIC MODELING OF GEOTHERMAL DISTRICT HEATINGSYSTEMS FOR BUILDING APPLICATIONS

摘要

Geothermal district heating systems (GDHSs) arernmodeled by examining the relations betweenrnthermodynamic losses and capital costs for therndevices comprising the GDHSs, and some possiblerngeneralizations are proposed relating thermodynamicrnlosses and capital costs. The model proposed is thenrnapplied to a GDHS installed in Turkey using actualrndata. Finally, the results are discussed in terms of thernidentification and evaluation of inefficiencies in thernsystem and of possible improvements. The studyrnprovides insights into the relations between energeticrnand exergetic losses and capital costs for GDHSs, inrnparticular, and for energy systems, in general. Thernresults appear to be useful to those involved in therndevelopment of analysis and design methodologiesrnthat integrate thermodynamics and economics.