Numerical analysis of fuel injection configuration on nitrogen oxides formation in a jet engine combustion chamber

2020 ◽  
Vol 220 ◽  
pp. 112862 ◽  
Author(s):  
Damijan Cerinski ◽  
Milan Vujanović ◽  
Zvonimir Petranović ◽  
Jakov Baleta ◽  
Niko Samec ◽  
...  
Keyword(s):  
Numerical Analysis ◽  
Nitrogen Oxides ◽  
Combustion Chamber ◽  
Fuel Injection ◽  
Jet Engine ◽  
Engine Combustion

scholarly journals RESEARCH ON THE PROCESS OF BIOFUEL INJECTION / BIODEGALŲ IŠPURŠKIMO PROCESO TYRIMAS

2012 ◽  
Vol 4 (4) ◽  
pp. 381-385
Author(s):  
Birutė Skukauskaitė ◽  
Tomas Mickevičius
Keyword(s):  
Diesel Engine ◽  
Combustion Chamber ◽  
Diesel Fuel ◽  
Rapeseed Oil ◽  
Fuel Injection ◽  
Injection Pressure ◽  
Fuel Spray ◽  
Chamber Volume ◽  
Air Density ◽  
Engine Combustion

The purpose of this research was to examine penetration peculiarities of rapeseed oil injected into the combustion chamber of a diesel engine. For conducting tests, a stand imitating conditions (air density) for the engine combustion chamber was designed. The analysis of pictures obtained using a fast recording camera determined fuel injection into the chamber volume and calculated the velocity of spray head. It was established that fuel spray of injected rapeseed oil proceeds deeper into the combustion chamber than that of mineral diesel fuel. The parameters of fuel spray are mainly influenced by injection pressure rather than by the density of compressed gases. Santrauka Šio darbo tikslas buvo ištirti į dyzelinio variklio degimo kamerą įpurškiamos rapsų aliejaus čiurkšlės kitimo ypatumus, lyginant su mineraliniu dyzelinu. Tyrimams sukonstruotas stendas, kuriame buvo imituojamos sąlygos (oro tankis), esančios variklio degimo kameroje. Analizuojant spartaus filmavimo vaizdo kamera gautus vaizdus, buvo išmatuotas degalų čiurkšlės įsiskverbimo į degimo kamerą dydis, apskaičiuotas čiurkšlės fronto judėjimo greitis. Nustatyta, kad įpurškiamo rapsų aliejaus čiurkšlė į degimo kamerą įsiskverbia giliau, negu mineralinio dyzelino čiurkšlė. Įpurškiamų degalų čiurkšlės parametrams didesnės įtakos turi įpurškimo slėgis nei aplinkos dujų tankis.

scholarly journals RESEARCH ON CHARACTERISTICS OF TURBO JET ENGINE COMBUSTION CHAMBER

Aviation ◽  
2021 ◽  
Vol 25 (1) ◽  
pp. 65-72
Author(s):  
Andrius Dubovas ◽  
Domantas Bručas
Keyword(s):  
Combustion Chamber ◽  
Computer Simulations ◽  
Operating Parameters ◽  
Exhaust Gas ◽  
Jet Engines ◽  
Gas Temperature ◽  
Jet Engine ◽  
Engine Combustion ◽  
Exhaust Gas Temperature ◽  
Combustion Mixture

The characteristics of the combustion chamber of turbo jet engine with various parameters are examined in this article. The scientific works of other authors analyzing operating parameters of the jet engines were reviewed. Their recommendations were considered. Computer simulations of the combustion chamber were performed using different combustion reactions. The exhaust gas temperature and its dependence on the combustion mixture were determined. A practical study was also carried out, during which the experimental exhaust gas temperature was measured, and the trends of temperature change were determined. After analyzing both theoretical and practical results, the conclusions are presented.

Numerical Analysis of Active Cooling Structure of Engine Combustion Chamber

2012 ◽  
Vol 629 ◽  
pp. 564-569
Author(s):  
Y.G. Zhang ◽  
Y.G. Bai ◽  
X.C. Yu ◽  
Y.F. Liu
Keyword(s):  
Numerical Analysis ◽  
Combustion Chamber ◽  
Mesh Generation ◽  
Dynamic Method ◽  
Thermal Protection ◽  
Fluid Dynamic ◽  
Analysis Process ◽  
Heat Transfer Theory ◽  
Engine Combustion ◽  
Parallel Technique

With the convective heat transfer theory, numerical analysis of fluid-solid-heat coupling is implemented for the engine combustion chamber cooling structure based on finite element method and computational fluid dynamic method, thus to obtain valuable simulation results. Different components of the mesh generation method used which have different influences on the computational results are thought over during this analysis process, including different grid type, grid density and boundary layer meshes. Moreover, MPI parallel technique is also used to resolve the computation demands. The temperature distributions of the key parts in the cooling structure are investigated, which can be used as a significant reference for the thermal protection design of the engine combustion chamber.

scholarly journals Transpiring cooling of a scram-jet engine combustion chamber

1997 ◽  
Author(s):  
Sang Choi ◽  
Stephen Scotti ◽  
Kyo Song ◽  
Heidi Ries ◽  
Sang Choi ◽  
...  
Keyword(s):  
Combustion Chamber ◽  
Jet Engine ◽  
Engine Combustion

scholarly journals Research using the CNG fuel system from the petrol fuel system for the honda wave engine

2021 ◽  
pp. 69-75
Author(s):  
Nguyen Thanh Tuan ◽  
Le Minh Xuan ◽  
Nguyen Trung Hieu ◽  
Doan Phuoc Tho ◽  
Nguyen Phu Dong
Keyword(s):  
Combustion Chamber ◽  
Fuel Injection ◽  
Supply System ◽  
Injection System ◽  
Fuel Injection System ◽  
Test Results ◽  
Fuel System ◽  
Fuel Supply ◽  
Engine Combustion ◽  
Design And Manufacture

The article presents research on Honda wave motorcycle engines using CNG gas based on a corresponding gasoline fuel injection system. In the study, we choose a solution using two nozzles suitable when switching to using CNG fuel. According to the throttle opening, the test results are conducted and can confirm that the engine, when using CNG, has reduced power and torque compared to gasoline. However, using a CNG fuel supply system from the fuel injection system saves time and cost of design and manufacture. The installation is simple, no need to interfere with the engine combustion chamber. As a result, the engine on the car operates reliably, stably, and reliably.

Study of Air Excess in Relation with Engine Parameters for a Generalized Reaction Based on JET-A Fuel

2015 ◽  
Vol 772 ◽  
pp. 395-400
Author(s):  
Razvan Marius Catana ◽  
Grigore Cican
Keyword(s):  
Combustion Chamber ◽  
General Formula ◽  
Pressure Ratio ◽  
Combustion Process ◽  
Combustion Reaction ◽  
Jet Engine ◽  
Engine Combustion ◽  
Different Temperatures

In this paperwork we are studying the performance of a combustion process into a jet engine combustion chamber, more specifically the relations between excess of air, overall pressure ratio and inlet turbine temperature for a combustion reaction based on a jet A fuel. The study present a method of calculating the excess of air for a generalized combustion reaction based on Jet A fuel indicated by the general formula , for different temperatures of air, different temperatures of fuel and different inlet turbine temperatures. The result of this study is to achieve diagrams in which are presented the variation of air excess with engine parameters who participate in combustion process and to performed a computing program in which it is calculated the exactly value of excess of air for any outlet compressor temperatures, any inlet turbine temperatures and different fuel temperatures.

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