Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool
A heat pump is one of the most popular energy transformation devices to provide the building with the necessary heating and cooling energy during the cold and warm seasons. Air source heat pumps (ASHP) in building heating and/or hot water systems are becoming more and more attractive these days beca...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Sciendo
2022-01-01
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| Series: | Environmental and Climate Technologies |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/rtuect-2022-0042 |
| _version_ | 1797947901721182208 |
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| author | Kropas Tomas Streckienė Giedrė Kirsanovs Vladimirs Dzikevics Mikelis |
| author_facet | Kropas Tomas Streckienė Giedrė Kirsanovs Vladimirs Dzikevics Mikelis |
| author_sort | Kropas Tomas |
| collection | DOAJ |
| description | A heat pump is one of the most popular energy transformation devices to provide the building with the necessary heating and cooling energy during the cold and warm seasons. Air source heat pumps (ASHP) in building heating and/or hot water systems are becoming more and more attractive these days because they can use renewable energy as an energy source instead of fossil fuels and thus contribute to the fight against climate change. By using an evaporator heat exchanger, ASHP takes the low-potential heat from the ambient air and transforms it into higher-potential heat for building heating and/or hot water preparation. The main problem with this type of energy transformer is the freezing of the evaporator at high outdoor humidity and a temperature close to 0° C when the condensed moisture of the ambient turns to frost on the surface of the evaporator heat exchanger. This phenomenon significantly reduces the efficiency (COP) of the ASHP. Thus, its performance strongly depends on the climatic conditions of the environment in which it operates. This study presents a numerical model of the heat pump under investigation developed with the TRNSYS software. The type of heat pump used in TRNSYS has been adjusted according to the heat pump characteristics provided by the manufacturer. The validated model is used to model the heating system of a building in the three Baltic States. Modeling results under different climatic conditions are presented. |
| first_indexed | 2024-04-10T21:33:51Z |
| format | Article |
| id | doaj.art-8e128bb4d93b4b6d82df2c89083c3084 |
| institution | Directory Open Access Journal |
| issn | 2255-8837 |
| language | English |
| last_indexed | 2024-04-10T21:33:51Z |
| publishDate | 2022-01-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Environmental and Climate Technologies |
| spelling | doaj.art-8e128bb4d93b4b6d82df2c89083c30842023-01-19T12:47:03ZengSciendoEnvironmental and Climate Technologies2255-88372022-01-0126154856010.2478/rtuect-2022-0042Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation ToolKropas Tomas0Streckienė Giedrė1Kirsanovs Vladimirs2Dzikevics Mikelis3Department of Building Energetics, Vilnius Gediminas Technical University, Saulėtekio Al. 11, 10223Vilnius, LithuaniaDepartment of Building Energetics, Vilnius Gediminas Technical University, Saulėtekio Al. 11, 10223Vilnius, LithuaniaInstitute of Energy Systems and Environment, Faculty of Electrical and Environmental Engineering, Riga Technical University, Azenes iela 12/1, Riga, LV-1048, LatviaInstitute of Energy Systems and Environment, Faculty of Electrical and Environmental Engineering, Riga Technical University, Azenes iela 12/1, Riga, LV-1048, LatviaA heat pump is one of the most popular energy transformation devices to provide the building with the necessary heating and cooling energy during the cold and warm seasons. Air source heat pumps (ASHP) in building heating and/or hot water systems are becoming more and more attractive these days because they can use renewable energy as an energy source instead of fossil fuels and thus contribute to the fight against climate change. By using an evaporator heat exchanger, ASHP takes the low-potential heat from the ambient air and transforms it into higher-potential heat for building heating and/or hot water preparation. The main problem with this type of energy transformer is the freezing of the evaporator at high outdoor humidity and a temperature close to 0° C when the condensed moisture of the ambient turns to frost on the surface of the evaporator heat exchanger. This phenomenon significantly reduces the efficiency (COP) of the ASHP. Thus, its performance strongly depends on the climatic conditions of the environment in which it operates. This study presents a numerical model of the heat pump under investigation developed with the TRNSYS software. The type of heat pump used in TRNSYS has been adjusted according to the heat pump characteristics provided by the manufacturer. The validated model is used to model the heating system of a building in the three Baltic States. Modeling results under different climatic conditions are presented.https://doi.org/10.2478/rtuect-2022-0042ashpcoefficient of performance (cop)different climatic conditionsmodel validationnorthern climatesimulation modelseasonal performance factor (spf)trnsys |
| spellingShingle | Kropas Tomas Streckienė Giedrė Kirsanovs Vladimirs Dzikevics Mikelis Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool Environmental and Climate Technologies ashp coefficient of performance (cop) different climatic conditions model validation northern climate simulation model seasonal performance factor (spf) trnsys |
| title | Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool |
| title_full | Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool |
| title_fullStr | Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool |
| title_full_unstemmed | Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool |
| title_short | Investigation of Heat Pump Efficiency in Baltic States Using TRNSYS Simulation Tool |
| title_sort | investigation of heat pump efficiency in baltic states using trnsys simulation tool |
| topic | ashp coefficient of performance (cop) different climatic conditions model validation northern climate simulation model seasonal performance factor (spf) trnsys |
| url | https://doi.org/10.2478/rtuect-2022-0042 |
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