Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers
The problem of coordination of the values of the refrigerant flow through the evaporators and gas coolers of the heat pump for the simultaneous production of heat and cold is studied. The compensation of the variations of the total flow through the evaporators is implemented using the variation of t...
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| Format: | Article |
| Language: | English |
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Academy of Sciences of Moldova
2016-12-01
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| Series: | Problems of the Regional Energetics |
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| Online Access: | http://journal.ie.asm.md/assets/files/12_03_32_2016.pdf |
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| author | Sit M.L. Juravliov A.A. Sit B.M. Timchenko D.V. |
| author_facet | Sit M.L. Juravliov A.A. Sit B.M. Timchenko D.V. |
| author_sort | Sit M.L. |
| collection | DOAJ |
| description | The problem of coordination of the values of the refrigerant flow through the evaporators and gas coolers of the heat pump for the simultaneous production of heat and cold is studied. The compensation of the variations of the total flow through the evaporators is implemented using the variation of the capacity of the compressor and a corresponding change in flow through the auxiliary gas cooler of the heat pump. Control system of this gas cooler is constructed using the invariance principle of the output value (outlet temperature of the heated agent) with respect to perturbations on the control channel (the refrigerant flow through the gas cooler). Principle of dual-channel compensation of the disturbance and advancing signal on input of control valve of the refrigerant through the gas cooler is ensured. Due to proposed solution, the intensity of the disturbances on the flow of refrigerant is reduced. Due to proposed technical solution power consumed by the heat pump compressor drive under transients is decreased. |
| format | Article |
| id | doaj-art-4b6a996a0dfc4aacbbcb0347c6a4eced |
| institution | Kabale University |
| issn | 1857-0070 |
| language | English |
| publishDate | 2016-12-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj-art-4b6a996a0dfc4aacbbcb0347c6a4eced2025-08-20T03:58:22ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702016-12-01323107110Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas CoolersSit M.L.0Juravliov A.A.1Sit B.M.2Timchenko D.V.3Institute of Power Engineering of the ASM, Chisinau, Republic of MoldovaInstitute of Power Engineering of the ASM, Chisinau, Republic of MoldovaInstitute of Power Engineering of the ASM, Chisinau, Republic of MoldovaInstitute of Power Engineering of the ASM, Chisinau, Republic of MoldovaThe problem of coordination of the values of the refrigerant flow through the evaporators and gas coolers of the heat pump for the simultaneous production of heat and cold is studied. The compensation of the variations of the total flow through the evaporators is implemented using the variation of the capacity of the compressor and a corresponding change in flow through the auxiliary gas cooler of the heat pump. Control system of this gas cooler is constructed using the invariance principle of the output value (outlet temperature of the heated agent) with respect to perturbations on the control channel (the refrigerant flow through the gas cooler). Principle of dual-channel compensation of the disturbance and advancing signal on input of control valve of the refrigerant through the gas cooler is ensured. Due to proposed solution, the intensity of the disturbances on the flow of refrigerant is reduced. Due to proposed technical solution power consumed by the heat pump compressor drive under transients is decreased.http://journal.ie.asm.md/assets/files/12_03_32_2016.pdfheat pumpasimultaneous production of heat and cold |
| spellingShingle | Sit M.L. Juravliov A.A. Sit B.M. Timchenko D.V. Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers Problems of the Regional Energetics heat pump a simultaneous production of heat and cold |
| title | Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers |
| title_full | Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers |
| title_fullStr | Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers |
| title_full_unstemmed | Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers |
| title_short | Improving the Efficiency of the Heat Pump Control System of Carbon Dioxide Heat Pump with Several Evaporators and Gas Coolers |
| title_sort | improving the efficiency of the heat pump control system of carbon dioxide heat pump with several evaporators and gas coolers |
| topic | heat pump a simultaneous production of heat and cold |
| url | http://journal.ie.asm.md/assets/files/12_03_32_2016.pdf |
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