| Title: | Environmental evaluation of residential heating : comparative life cycle assessment of two heating systems |
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| Authors: | ID Turk, Janez (Author)
ID Oarga-Mulec, Andreea (Author)
ID Ostruh, Patricija (Author)
ID Ceket, Andraž (Author) |
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| Files: |  URL - Source URL, visit https://doi.org/10.3390/buildings15213977
 PDF - Presentation file, download (1,86 MB)
MD5: 403996926F217A7944D18E62786CBECC
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  ZAG - Slovenian National Building and Civil Engineering Institute
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| Abstract: | The purpose of the study is to evaluate the environmental performance of two systems for space heating and hot water provision in a residential building. In both cases, a ground-source heat pump is used. In the baseline system, the heat pump is driven by electrical power from the grid. In the alternative system, photovoltaic thermal collectors are integrated into the building for domestic hot water preparation and the production of electricity. Excess heat produced in the summer is introduced to the borehole and extracted later, in the cooler part of the year. Environmental benchmarking of the two systems was conducted using the Life Cycle Assessment method. A cradle-to-grave approach was applied, taking into account all life cycle stages of the system and its operation over 20 years. Results show that the alternative system yields significantly lower impacts in terms of Global Warming Potential (36% decrease) and Resources (36% decrease). In terms of Human Health, the decrease is minor (6%). However, in terms of Ecosystem, the alternative system shows a 47% higher impact than the baseline system. This increase is primarily attributed to the additional components required in the alternative configuration. |
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| Keywords: | LCA, GWP, heat pump, thermal energy storage, photovoltaic thermal collectors, heating, domestic hot water |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 04.11.2025 |
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| Publisher: | Molecular Diversity Preservation International |
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| Year of publishing: | 2025 |
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| Number of pages: | str. 1-23 |
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| Numbering: | Vol. 15, iss. 21, [article no.] 3977 |
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| PID: | 20.500.12556/DiRROS-24130  |
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| UDC: | 697 |
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| ISSN on article: | 2075-5309 |
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| DOI: | 10.3390/buildings15213977 |
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| COBISS.SI-ID: | 256169987 |
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| Copyright: | © 2025 by the authors |
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| Publication date in DiRROS: | 17.11.2025 |
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| Views: | 275 |
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| Downloads: | 124 |
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