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9F gas turbine exhaust system architecture design and analysis

Author: SunLei
Tutor: GuLiQiang；LiuFeng
School: Shanghai Jiaotong University
Course: Mechanical Design
Keywords: Gas turbine Exhaust Heat Transfer Structure FEM
CLC: TK473
Type: Master's thesis
Year: 2011
Downloads: 97
Quote: 0
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Abstract


Gas turbine with high efficiency, rapid starts and stops , you can use a variety of combustible gases, small footprint and reliable protection and other features . Which is widely used in power plants and other power output places . Gas turbine exhaust system as an important auxiliary systems, their efficiency and work have a great impact . However, due to the gas turbine exhaust systems are very complex and harsh working conditions , except by the wind and earthquake loads caused by the natural environment , but also by the impact of high-temperature gas , exhaust system structural safety under severe threat. The actual operation of the plant has been found in more than housing the exhaust system overheating or lining shedding . In this paper, 9F gas turbine exhaust expansion pipe design projects created using finite element software Ansys exhaust pipe expansion model , its heat transfer and thermal -structural coupling finite element analysis on the impact of the exhaust pipe temperature expansion and structural strength of each factor research. And on this basis, combined with industry norms and standards designed to optimize the design of the exhaust pipe expansion . In this design, thus eliminating the previous product failure occurred in operation condition . And under the premise of ensuring product quality , reduce product costs, shorten the development cycle. Firstly, the expansion of the exhaust pipe structure and thermal protection preliminary design study and exposition ; combined with industry norms and company standards proposed expansion of the exhaust pipe design requirements. Then study the exhaust pipe thermal expansion conditions , temperature distribution , temperature and the temperature distribution and temperature factors on the impact and reasonable insulation design. While the environmental loads , structural loads , load combinations and their effect on the basis of the impact of structural calculations and research. And on this basis, the expansion of the exhaust pipe design optimization.

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CLC: > Industrial Technology > Energy and Power Engineering > Internal combustion engine > Gas turbine ( gas turbine ) > Structure
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