Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines
This paper studies the integration of heat pump units (HPUs) to enhance the thermal efficiency of a combined heat and power plant (CHPP). Different solutions of integrate the HPUs in a combined-cycle gas turbine (CCGT) plant, the CCGT-450, are analyzed based on simulations developed on “United Cycle...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2021-05-01
|
| Series: | Energies |
| Subjects: | |
| Online Access: | https://www.mdpi.com/1996-1073/14/9/2685 |
| _version_ | 1797535015250165760 |
|---|---|
| author | Vitaly Sergeev Irina Anikina Konstantin Kalmykov |
| author_facet | Vitaly Sergeev Irina Anikina Konstantin Kalmykov |
| author_sort | Vitaly Sergeev |
| collection | DOAJ |
| description | This paper studies the integration of heat pump units (HPUs) to enhance the thermal efficiency of a combined heat and power plant (CHPP). Different solutions of integrate the HPUs in a combined-cycle gas turbine (CCGT) plant, the CCGT-450, are analyzed based on simulations developed on “United Cycle” computer-aided design (CAD) system. The HPUs are used to explore low-potential heat sources (LPHSs) and heat make-up and return network water. The use of HPUs to regulate the gas turbine (GT) intake air temperature during the summer operation and the possibility of using a HPU to heat the GT intake air and replace anti-icing system (AIS), over the winter at high humidity conditions were also analyzed. The best solution was obtained for the winter operation mode replacing the AIS by a HPU. The simulation results indicated that this scheme can reduce the underproduction of electricity generation by the CCGT unit up to 14.87% and enhance the overall efficiency from 40.00% to 44.82%. Using a HPU with a 5.04 MW capacity can save $309,640 per each MW per quarter. |
| first_indexed | 2024-03-10T11:38:36Z |
| format | Article |
| id | doaj.art-6ff9f79b0f3a497db9a6376c03d45839 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-10T11:38:36Z |
| publishDate | 2021-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-6ff9f79b0f3a497db9a6376c03d458392023-11-21T18:40:29ZengMDPI AGEnergies1996-10732021-05-01149268510.3390/en14092685Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas TurbinesVitaly Sergeev0Irina Anikina1Konstantin Kalmykov2Higher School of Nuclear and Heat Power Engineering, Institute of Energy, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaHigher School of Nuclear and Heat Power Engineering, Institute of Energy, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaHigher School of Nuclear and Heat Power Engineering, Institute of Energy, Peter the Great St. Petersburg Polytechnic University, 195251 St. Petersburg, RussiaThis paper studies the integration of heat pump units (HPUs) to enhance the thermal efficiency of a combined heat and power plant (CHPP). Different solutions of integrate the HPUs in a combined-cycle gas turbine (CCGT) plant, the CCGT-450, are analyzed based on simulations developed on “United Cycle” computer-aided design (CAD) system. The HPUs are used to explore low-potential heat sources (LPHSs) and heat make-up and return network water. The use of HPUs to regulate the gas turbine (GT) intake air temperature during the summer operation and the possibility of using a HPU to heat the GT intake air and replace anti-icing system (AIS), over the winter at high humidity conditions were also analyzed. The best solution was obtained for the winter operation mode replacing the AIS by a HPU. The simulation results indicated that this scheme can reduce the underproduction of electricity generation by the CCGT unit up to 14.87% and enhance the overall efficiency from 40.00% to 44.82%. Using a HPU with a 5.04 MW capacity can save $309,640 per each MW per quarter.https://www.mdpi.com/1996-1073/14/9/2685heat pump unitenergy efficiencyvapor compressionthermal power plantlow-potential heat sourceCCGT-CHPP |
| spellingShingle | Vitaly Sergeev Irina Anikina Konstantin Kalmykov Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines Energies heat pump unit energy efficiency vapor compression thermal power plant low-potential heat source CCGT-CHPP |
| title | Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines |
| title_full | Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines |
| title_fullStr | Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines |
| title_full_unstemmed | Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines |
| title_short | Using Heat Pumps to Improve the Efficiency of Combined-Cycle Gas Turbines |
| title_sort | using heat pumps to improve the efficiency of combined cycle gas turbines |
| topic | heat pump unit energy efficiency vapor compression thermal power plant low-potential heat source CCGT-CHPP |
| url | https://www.mdpi.com/1996-1073/14/9/2685 |
| work_keys_str_mv | AT vitalysergeev usingheatpumpstoimprovetheefficiencyofcombinedcyclegasturbines AT irinaanikina usingheatpumpstoimprovetheefficiencyofcombinedcyclegasturbines AT konstantinkalmykov usingheatpumpstoimprovetheefficiencyofcombinedcyclegasturbines |