Characteristics Of Combustion Chamber Research Articles

Экспериментальное исследование теплогидравлических характеристик трактов охлаждения камер сгорания с предельными параметрами оребрения энергосиловых установок

Экспериментальное исследование теплогидравлических характеристик трактов охлаждения камер сгорания с предельными параметрами оребрения энергосиловых установок

Experimental Study on Diesel Engine and Analysis the Spray Characteristics of Diesel and Biodiesel by Varying Injection Pressure

— The spray characteristic of the injected fuel is mainly depends upon fuel injection pressure, temperature, ambient pressure, fuel viscosity and fuel density. An experimental study was conducted to examine the effect of injection pressure on the spray was injected into direct injection (DI) diesel engine in the atmospheric condition. In Diesel engine, the window of 20 mm diameter hole and the transparent quartz glass materials were used for visualizing spray characteristics of combustion chamber at right angle triangle position. The varying Injection pressure of 180 - 240 bar and the engine was hand cranked for conducting the experiments. Spray characteristics for Jatropha oil methyl ester (JOME) and diesel were studied experimentally. Spray tip penetration and spray cone angle were measured in a combustion chamber of Direct Injection diesel engine by employing high speed Digital camera using Mie Scattering Technique and ImageJ software. The study shows the JOME gives longer spray tip penetration and smaller spray cone angle than those of diesel fuels. The Spray breakup region (Reynolds number, Weber number), Injection velocity and Sauter Mean Diameter (SMD) were determined for diesel and JOME. SMD decreases for JOME than diesel and the Injection velocity, Reynolds Number, Weber Number Increases for JOME than diesel.

Concerning the problem of dynamic damping of the vibration combustion self-oscillations in a liquid-propellant rocket engine

The reason for the decrease in the amplitude of longitudinal vibration combustion self-oscillations in the combustion chamber of a liquid-propellant rocket engine by means of antipulse partitions has been justified. A mathematical model of the development of combustion instability in such a chamber on attachment of a Helmholtz resonator to it has been obtained. The character of the damping of vibration combustion self-oscillations excited by the action of the Crocco mechanisms and negative thermal resistance, when varying the acoustic parameters of the resonator and of the pressure head characteristics of combustion chamber is established.

Результаты испытаний камеры сгорания ГТД дг80 с низкоэмисcионным горелочным устройством на базе трубчатых модулей

The present article gives the survey of the main streams in designing of low-emission combustion chambers with taking into account the modern trends of the gas turbine technologies development. Perspectives of the low-emission combustion chambers development based on application of unique design and aerodynamic mains lice “Bord nozzle” (tube module) are describes and justified. Characteristics of combustion chamber with burner on the basis of pipe modules were investigated