Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements
The increase of power plants efficiency by improving the processes of heat and mass transfer of the working fluid between their elements is a relevant problem. The influence of the heat transfer processes intensity on the values of the simple and complex cycles of power plants efficiency has been re...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Academy of Sciences of Moldova
2020-09-01
|
| Series: | Problems of the Regional Energetics |
| Subjects: | |
| Online Access: | https://journal.ie.asm.md/assets/files/04_03_47_2020.pdf |
| _version_ | 1819182483093061632 |
|---|---|
| author | Kuznetsov V.V. |
| author_facet | Kuznetsov V.V. |
| author_sort | Kuznetsov V.V. |
| collection | DOAJ |
| description | The increase of power plants efficiency by improving the processes of heat and mass transfer of the working fluid between their elements is a relevant problem. The influence of the heat transfer processes intensity on the values of the simple and complex cycles of power plants efficiency has been revealed. The most significant results of the work are: the dependences to determine the efficiency of heat conversion in power plants of simple and complex cycles, which take into account the thermal and hydrodynamic efficiency of the elements included in them have been proposed; to ensure the highest possible efficiency of heat transfer processes in the elements of power plants, the following levels have been proposed: heat transfer in a power plant element; heat exchange in the element of the power plant; heat transfer between the elements of the power plant. The significance of the obtained results lies in the possibility to increase the power plants efficiency at the design and modernization stages using the presented dependencies, which take into account the thermal and the hydrodynamic efficiency of heat transfer between the elements of the plants. According to the proposed dependencies, an assessment of the efficiency of heat conversion in a gas turbine plant with a heat recovery boiler operating on a steam turbine has been carried out. It has been found that due to the intensification of heat transfer along the gas side of the boiler, it is possible to increase the heat efficiency from 0.516 to 0.752. |
| first_indexed | 2024-12-22T22:46:50Z |
| format | Article |
| id | doaj.art-a17f6d65e5484c4b95b8d8eaf0384ea3 |
| institution | Directory Open Access Journal |
| issn | 1857-0070 |
| language | English |
| last_indexed | 2024-12-22T22:46:50Z |
| publishDate | 2020-09-01 |
| publisher | Academy of Sciences of Moldova |
| record_format | Article |
| series | Problems of the Regional Energetics |
| spelling | doaj.art-a17f6d65e5484c4b95b8d8eaf0384ea32022-12-21T18:10:04ZengAcademy of Sciences of MoldovaProblems of the Regional Energetics1857-00702020-09-01473293910.5281/zenodo.4018947Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants ElementsKuznetsov V.V.0Admiral Makarov National University of Shipbuilding Мykolaiv, Ukraine The increase of power plants efficiency by improving the processes of heat and mass transfer of the working fluid between their elements is a relevant problem. The influence of the heat transfer processes intensity on the values of the simple and complex cycles of power plants efficiency has been revealed. The most significant results of the work are: the dependences to determine the efficiency of heat conversion in power plants of simple and complex cycles, which take into account the thermal and hydrodynamic efficiency of the elements included in them have been proposed; to ensure the highest possible efficiency of heat transfer processes in the elements of power plants, the following levels have been proposed: heat transfer in a power plant element; heat exchange in the element of the power plant; heat transfer between the elements of the power plant. The significance of the obtained results lies in the possibility to increase the power plants efficiency at the design and modernization stages using the presented dependencies, which take into account the thermal and the hydrodynamic efficiency of heat transfer between the elements of the plants. According to the proposed dependencies, an assessment of the efficiency of heat conversion in a gas turbine plant with a heat recovery boiler operating on a steam turbine has been carried out. It has been found that due to the intensification of heat transfer along the gas side of the boiler, it is possible to increase the heat efficiency from 0.516 to 0.752.https://journal.ie.asm.md/assets/files/04_03_47_2020.pdfefficiencyaheat |
| spellingShingle | Kuznetsov V.V. Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements Problems of the Regional Energetics efficiency a heat |
| title | Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements |
| title_full | Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements |
| title_fullStr | Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements |
| title_full_unstemmed | Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements |
| title_short | Multi-Level Estimation of the Heat Transfer Processes Efficiency in the Power Plants Elements |
| title_sort | multi level estimation of the heat transfer processes efficiency in the power plants elements |
| topic | efficiency a heat |
| url | https://journal.ie.asm.md/assets/files/04_03_47_2020.pdf |
| work_keys_str_mv | AT kuznetsovvv multilevelestimationoftheheattransferprocessesefficiencyinthepowerplantselements |