Experimental Investigation on Film Cooling in a Hydrocarbon/GOX Rocket Combustion Chamber

2012 ◽  
Author(s):  
Christoph Kirchberger ◽  
Gregor Schlieben ◽  
Andreas Hupfer ◽  
Hans Peter Kau
Keyword(s):  
Experimental Investigation ◽  
Combustion Chamber ◽  
Film Cooling

An Experimental Investigation of a New Hybrid Film Cooling Scheme

2010 ◽  
Author(s):  
M. Ghorab ◽  
I. Hassan ◽  
T. Lucas
Keyword(s):  
Experimental Investigation ◽  
Film Cooling ◽  
Hybrid Film ◽  
Density Ratio ◽  
Thermochromic Liquid Crystal ◽  
Hybrid Scheme ◽  
Cooling Performance ◽  
Average Heat ◽  
Bending Effect ◽  
Turbine Airfoils

This paper presents an experimental investigation of the film cooling performance of a New Hybrid Film Cooling Scheme using Thermochromic Liquid Crystal technique. The new scheme has been designed to improve the film cooling performance of gas turbine airfoils. The scheme includes two consecutive film hole configurations with interior bending. The cooling performance of the new scheme was analyzed across blowing ratios of 0.5, 1.0 and 1.5, at a density ratio of 0.94. The results showed that the new scheme enhanced the local and the laterally averaged film cooling performance in terms of effectiveness, and net heat flux reduction in compared to other film hole configurations. The bending effect of the new scheme throttled the secondary flow causing it to spread widely over the downstream surfaces, hence enhancing the film cooling performance at low and high blowing ratios. The hybrid scheme provided an average heat transfer ratio near unity over the downstream surfaces at low and high blowing ratios.

scholarly journals Characteristics of gaseous film cooling with hydrocarbon fuel in supersonic combustion chamber

2021 ◽  
Author(s):  
Tingting Jing ◽  
Zhen Xu ◽  
Jiachen Xu ◽  
Fei Qin ◽  
Guoqiang He ◽  
...  
Keyword(s):  
Combustion Chamber ◽  
Film Cooling ◽  
Hydrocarbon Fuel ◽  
Supersonic Combustion

scholarly journals Influence of Chemical Composite Additive on Combustion and Emission Characteristics of a Diesel Engine using Waste Plastic Oil as Fuel and Modified Piston Bowl

2018 ◽  
Vol 34 (6) ◽  
pp. 2806-2813
Author(s):  
Pappula Bridjesh ◽  
Pitchaipillai Periyasamy ◽  
Narayanan Kannaiyan Geetha
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Combustion Chamber ◽  
Emission Characteristics ◽  
Soy Lecithin ◽  
Physiochemical Properties ◽  
Waste Plastic ◽  
Piston Bowl ◽  
Waste Plastic Oil ◽  
Engine Combustion

This experimental investigation is an endeavour to substitute diesel with WPO as fuel on a diesel engine. Enhancing the physiochemical properties of WPO or with hardware modifications on the engine, the performance of engine could not be improved up to the mark. The physiochemical properties of WPO are enhanced by the use of composite additive, which is a mixture of soy lecithin and 2-ethylhexyl nitrate and to improve the in-cylinder air motion; subsequently to increase the swirl and turbulence, standard hemispherical combustion chamber is modified to toroidal spherical grooves combustion chamber. The results of combined effect of modifying the combustion chamber and addition of composite additive suggest that improvements in engine-out emissions can be obtained from current diesel engines by enhancing physiochemical properties of fuel and matching geometry of combustion chamber. Engine combustion and emission characteristics under various loads for various fuels under test are as well studied.

Experimental Investigation of Methane Assisted Pulverized Coal Flames Using an Optical Accessible Combustion Chamber

2021 ◽  
pp. 327-338
Author(s):  
C. Axt ◽  
D. Zabrodiec ◽  
S. Pielsticker ◽  
T. Kreitzberg ◽  
O. Hatzfeld ◽  
...  
Keyword(s):  
Experimental Investigation ◽  
Combustion Chamber ◽  
Pulverized Coal
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