Analysis on exergy consumption patterns for space heating in Slovenian buildings

Mateja Dovjak, Masanori Shukuya, Bjarne W. Olesen, Ales Krainer

Research output: Contribution to journalJournal articleResearchpeer-review


Problem of high energy use for heating in Slovenian buildings is analyzed with exergy and energy analysis. Results of both are compared and discussed. Three cases of exterior building walls are located in three climatic zones in winter conditions. Results of energy analyses show that the highest heating energy demand appears in the case with less thermal insulation, especially in colder climate. lithe comparison is made only on the energy supply and exergy supply, the results of exergy analysis are the same as those of energy analysis. The main difference appears, if the whole chain of supply and demand is taken into consideration. Exergy calculations enable us to analyze how much exergy is consumed in which part, from boiler to building envelope. They also reveal how much energy is supplied for the purpose of heating. Results show that insulation has much bigger effect than effect of boiler efficiency. However, the most effective solution is to improve building envelope together with boiler efficiency. Better thermal insulation also makes an important contribution to the improvement of thermal comfort conditions. It causes higher surface temperatures resulting in a larger warm radiant exergy emission rate and consequently better thermal comfort.
Original languageEnglish
JournalEnergy Policy
Issue number6
Pages (from-to)2998-3007
Publication statusPublished - 2010


  • Exergy
  • Slovenian buildings
  • Space heating

Fingerprint Dive into the research topics of 'Analysis on exergy consumption patterns for space heating in Slovenian buildings'. Together they form a unique fingerprint.

Cite this