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Heat transfer in th...
Heat transfer in the trailing region of gas turbines – A state-of-the-art review
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- Du, Wei (författare)
- Harbin Institute of Technology
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- Luo, Lei (författare)
- Harbin Institute of Technology
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- Jiao, Yinghou (författare)
- Harbin Institute of Technology
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- Wang, Songtao (författare)
- Harbin Institute of Technology
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- Li, Xingchen (författare)
- Lund University,Lunds universitet,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Lunds Tekniska Högskola,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH,Academy of Military Medical Science China
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- Sunden, Bengt (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Värmeöverföring,Institutionen för energivetenskaper,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Heat Transfer,Department of Energy Sciences,Departments at LTH,Faculty of Engineering, LTH
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(creator_code:org_t)
- Elsevier BV, 2021
- 2021
- Engelska.
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Ingår i: Applied Thermal Engineering. - : Elsevier BV. - 1359-4311. ; 199
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://doi.org/10.1...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Highly efficient gas turbines are beneficial for improving the energy structure, reducing carbon dioxide emissions and protecting the Earth's environment. A highly efficient gas turbine means a higher inlet temperature and requires a more efficient cooling structure. Due to the limitations of aerodynamics, structure and strength, cracks, fractures and ablation easily form at the trailing edge of gas turbines. Thus, it is vital to enhance the heat transfer in the trailing edge of gas turbines. In practical applications, internal cooling structures (pin fins, latticework ducts) and film cooling are used simultaneously. In addition, some innovative cooling structures have been proposed, such as dimples/protrusions, labyrinth channels and so on. Research progress on turbine trailing edge cooling structures is presented in this paper. For pin finned duct, the heat transfer and flow structure characteristics are introduced for single rows, multirows, static and rotating conditions. Investigations on latticework ducts are quite inadequate. Therefore, only the main flow and heat transfer characteristics are shown in this paper. For film cooling at the trailing edge, experimental results and numerical results are introduced. Finally, some suggestions for heat transfer research in the trailing edge region are proposed.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Energiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Energy Engineering (hsv//eng)
Nyckelord
- Cooling structures
- Enhancement
- Future trends
- Heat transfer
- Trailing region
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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