ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
A spool type high temperature control valve is developed to control the flow rate of hightemperature fuel supply for scramjet engines in this paper. The clearance between the friction pairs ofthe spool and sleeve is crucial for the proper performance of the valve working at the temperature ashigh as 700 K. The high temperature environment may cause problems to the valve, for instance thethermal deformation of the valve materials, the failure of the friction pairs inside the valve and eventhe damage of the operating proportional electromagnet. Therefore the thermodynamic analyses ofthe valve are carried out using 2D finite element analysis method. The heat transfer and fluid dynamicmodels, as well as the boundary conditions are introduced. The heat flux through the fluid/solidinterface is calculated to connect the heat transfer models inside the solid domain and the fluiddomain. By solving both the heat transfer and turbulent flow models in the solid and fluid domains,the flow field distribution inside the flow channel and the thermal field distribution inside all the partsof the valve are shown. Suggestions on the design of the valve are given according to thethermodynamic analysis results
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/18/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.575-578.1240.pdf
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