Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance
Coolants play a major role in the performance of heat exchanging systems. In a marine gas turbine engine, an intercooler is used to reduce the compressed gas temperature between the compressor stages. The thermophysical properties of the coolant running within the intercooler directly influence the...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-09-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/11/9/2300 |
| _version_ | 1797517861126668288 |
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| author | Salah Almurtaji Naser Ali Joao A. Teixeira Abdulmajid Addali |
| author_facet | Salah Almurtaji Naser Ali Joao A. Teixeira Abdulmajid Addali |
| author_sort | Salah Almurtaji |
| collection | DOAJ |
| description | Coolants play a major role in the performance of heat exchanging systems. In a marine gas turbine engine, an intercooler is used to reduce the compressed gas temperature between the compressor stages. The thermophysical properties of the coolant running within the intercooler directly influence the level of enhancement in the performance of the unit. Therefore, employing working fluids of exceptional thermal properties is beneficial for improving performance in such applications, compared to conventional fluids. This paper investigates the effect of utilizing nanofluids for enhancing the performance of a marine gas turbine intercooler. Multi-walled carbon nanotubes (MWCNTs)-water with nanofluids at 0.01–0.10 vol % concentration were produced using a two-step controlled-temperature approach ranging from 10 °C to 50 °C. Next, the thermophysical properties of the as-prepared suspensions, such as density, thermal conductivity, specific heat capacity, and viscosity, were characterized. The intercooler performance was then determined by employing the measured data of the MWCNTs-based nanofluids thermophysical properties in theoretical formulae. This includes determining the intercooler effectiveness, heat transfer rate, gas outlet temperature, coolant outlet temperature, and pumping power. Finally, a comparison between a copper-based nanofluid from the literature with the as-prepared MWCNTs-based nanofluid was performed to determine the influence of each of these suspensions on the intercooler performance. |
| first_indexed | 2024-03-10T07:22:06Z |
| format | Article |
| id | doaj.art-5601e7f8160449949a09381409075243 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T07:22:06Z |
| publishDate | 2021-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-5601e7f8160449949a093814090752432023-11-22T14:30:27ZengMDPI AGNanomaterials2079-49912021-09-01119230010.3390/nano11092300Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler PerformanceSalah Almurtaji0Naser Ali1Joao A. Teixeira2Abdulmajid Addali3School of Aerospace, Transport and Manufacturing (SATM), Cranfield University, Cranfield MK43 0AL, UKKuwait Institute for Scientific Research, Energy and Building Research Center, Nanotechnology and Applications Program, Safat 13109, KuwaitSchool of Aerospace, Transport and Manufacturing (SATM), Cranfield University, Cranfield MK43 0AL, UKSchool of Aerospace, Transport and Manufacturing (SATM), Cranfield University, Cranfield MK43 0AL, UKCoolants play a major role in the performance of heat exchanging systems. In a marine gas turbine engine, an intercooler is used to reduce the compressed gas temperature between the compressor stages. The thermophysical properties of the coolant running within the intercooler directly influence the level of enhancement in the performance of the unit. Therefore, employing working fluids of exceptional thermal properties is beneficial for improving performance in such applications, compared to conventional fluids. This paper investigates the effect of utilizing nanofluids for enhancing the performance of a marine gas turbine intercooler. Multi-walled carbon nanotubes (MWCNTs)-water with nanofluids at 0.01–0.10 vol % concentration were produced using a two-step controlled-temperature approach ranging from 10 °C to 50 °C. Next, the thermophysical properties of the as-prepared suspensions, such as density, thermal conductivity, specific heat capacity, and viscosity, were characterized. The intercooler performance was then determined by employing the measured data of the MWCNTs-based nanofluids thermophysical properties in theoretical formulae. This includes determining the intercooler effectiveness, heat transfer rate, gas outlet temperature, coolant outlet temperature, and pumping power. Finally, a comparison between a copper-based nanofluid from the literature with the as-prepared MWCNTs-based nanofluid was performed to determine the influence of each of these suspensions on the intercooler performance.https://www.mdpi.com/2079-4991/11/9/2300colloidalsuspensionWR-21MWCNTintercooler effectivenesspumping power |
| spellingShingle | Salah Almurtaji Naser Ali Joao A. Teixeira Abdulmajid Addali Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance Nanomaterials colloidal suspension WR-21 MWCNT intercooler effectiveness pumping power |
| title | Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance |
| title_full | Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance |
| title_fullStr | Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance |
| title_full_unstemmed | Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance |
| title_short | Effect of Multi-Walled Carbon Nanotubes-Based Nanofluids on Marine Gas Turbine Intercooler Performance |
| title_sort | effect of multi walled carbon nanotubes based nanofluids on marine gas turbine intercooler performance |
| topic | colloidal suspension WR-21 MWCNT intercooler effectiveness pumping power |
| url | https://www.mdpi.com/2079-4991/11/9/2300 |
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