Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP
The work deals with district heating systems based on cogeneration plants and the use of carbon dioxide heat pumps in them. Heat pumps are used in heating systems of buildings and use the heat of outdoor air as a source of low potential heat and, at the same time, the heat of return network water. T...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of Moldova
2020-12-01
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| Series: | Problems of the Regional Energetics |
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| Online Access: | https://journal.ie.asm.md/assets/files/09_04_48_2020.pdf |
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| author | Sit M.L. Juravleov A.A. Patsiuk V.I. Timchenko D.V. Chernishov P.S. Lomovtsev P.B. |
| author_facet | Sit M.L. Juravleov A.A. Patsiuk V.I. Timchenko D.V. Chernishov P.S. Lomovtsev P.B. |
| author_sort | Sit M.L. |
| collection | DOAJ |
| description | The work deals with district heating systems based on cogeneration plants and the use of carbon dioxide heat pumps in them. Heat pumps are used in heating systems of buildings and use the heat of outdoor air as a source of low potential heat and, at the same time, the heat of return network water. The aim of the study is to develop the structure of a heat four-pole (HFP) for fitting of heat pumps with district heating system, determine the parameters of a heat exchanger with a variable surface area of the heat exchange installed in the return water line, and analyze one of the schemes of the HFP. The goal to be sought is achieved by solving the following tasks: development of requirements and justification of the HFP scheme, justification of it’s parameters. The most significant results are developed models of statics and dynamics of heat exchanger in HPF, means of the integration of carbon dioxide heat pumps into heat networks with high temperature schedules. The significance of the results obtained consists in deriving dependencies between the temperature schedule of heating system and HFP parameters, which can be used in the practice of designing a district heating systems with heat pumps. As a result of calculations, equations were obtained for the describing of the relationship between the area of the heat exchanger installed in the return water line, temperature drops at the ends of the heat exchanger, heat power of the heat exchanger. |
| format | Article |
| id | doaj-art-04bd66259f2a4419b31abeb36a5ba1d5 |
| institution | DOAJ |
| issn | 1857-0070 |
| language | English |
| publishDate | 2020-12-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj-art-04bd66259f2a4419b31abeb36a5ba1d52025-08-20T02:54:40ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702020-12-014849010010.5281/zenodo.4317194Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHPSit M.L.0Juravleov A.A.1Patsiuk V.I.2Timchenko D.V.3Chernishov P.S.4Lomovtsev P.B.5Institute of Power Engineering of Moldova, Republic of Moldova, KishinauInstitute of Power Engineering of Moldova, Republic of Moldova, KishinauMoldovan State University, Republic of Moldova, KishinauInstitute of Power Engineering of Moldova, Republic of Moldova, KishinauBaltic State Technical University VOENMEH, Saint Petersburg, Russian FederationOdessa National Academy of Food Technologies, Odessa, UkraineThe work deals with district heating systems based on cogeneration plants and the use of carbon dioxide heat pumps in them. Heat pumps are used in heating systems of buildings and use the heat of outdoor air as a source of low potential heat and, at the same time, the heat of return network water. The aim of the study is to develop the structure of a heat four-pole (HFP) for fitting of heat pumps with district heating system, determine the parameters of a heat exchanger with a variable surface area of the heat exchange installed in the return water line, and analyze one of the schemes of the HFP. The goal to be sought is achieved by solving the following tasks: development of requirements and justification of the HFP scheme, justification of it’s parameters. The most significant results are developed models of statics and dynamics of heat exchanger in HPF, means of the integration of carbon dioxide heat pumps into heat networks with high temperature schedules. The significance of the results obtained consists in deriving dependencies between the temperature schedule of heating system and HFP parameters, which can be used in the practice of designing a district heating systems with heat pumps. As a result of calculations, equations were obtained for the describing of the relationship between the area of the heat exchanger installed in the return water line, temperature drops at the ends of the heat exchanger, heat power of the heat exchanger.https://journal.ie.asm.md/assets/files/09_04_48_2020.pdfheat exchangeravariable heat transfer surfacecontrol systemmathematic modelheat pump |
| spellingShingle | Sit M.L. Juravleov A.A. Patsiuk V.I. Timchenko D.V. Chernishov P.S. Lomovtsev P.B. Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP Problems of the Regional Energetics heat exchanger a variable heat transfer surface control system mathematic model heat pump |
| title | Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP |
| title_full | Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP |
| title_fullStr | Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP |
| title_full_unstemmed | Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP |
| title_short | Thermal Four-Pole for Inclusion of Heat Pumps into the Heat Supply System with the CHP |
| title_sort | thermal four pole for inclusion of heat pumps into the heat supply system with the chp |
| topic | heat exchanger a variable heat transfer surface control system mathematic model heat pump |
| url | https://journal.ie.asm.md/assets/files/09_04_48_2020.pdf |
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