Abstract The main goal of automobile researchers is to develop internal combustion engines that are fuel efficient and emit zero pollutants. It can be inferred from prior research publications lean burn conditions significantly reduce emissions while improving engine efficiency. lean-burn temperatures lower hence harmful like NO reduced. Gasoline fuels have a narrow equivalence ratio window it ...

Reactivity control compression ignition engines illustrated suitable abilities in emission reduction beside high thermal efficiency. In this research, nine various direct fuel injection strategies were studied numerically: three cases with single strategy and six split different start of (SOI). all simulated cases, equivalence ratio kept constant (i.e., 0.3). Among strategies, showed higher IME...

The removal of nitrogen oxides emitted by diesel and lean burn engines is one of the most important targets in catalytic exhaust aftertreatment research. Besides the selective catalytic reduction (SCR) reaction with ammonia the most promising approach is the NOx Storage and Reduction Catalyst (NSR) which utilizes the nitrogen oxides storage on barium sites to form nitrates during the lean phase...

Increasing the gas temperature at inlet to high pressure turbine of engines is known as a proven method increase efficiency these engines. However, this will expose blades’ surface very heat load and thermal damages. In case un-shrouded blades, blade tip be exposed significant due developed leakage flows in gap, leads in-service burnout which degrades shortens its operational life. This paper s...

The production of engines using turbocharged stratified injection technology has increased rapidly in recent years. In addition, the use liquefied petroleum gas, which is an environmental and economical fuel, increasing vehicles. While gas cannot be used before, kits have become applicable to these types with development technology. Turbocharged provide first ignition liquid fuel engines. There...

Abstract In this paper, we analyze the impact of in-service deterioration on overall thermal performance (metal effectiveness) heavily cooled high-pressure nozzle guide vanes a design typical large civil jet engines. We study 15 deteriorated parts (increased surface roughness, barrier coating spallation and sintering, damaged film cooling holes, trailing edge burn-back) from operational engines...

This paper deals with the optimization of the catalytic convertor for CNG Lean burn Engine based on BS4 compliances. In addition to the present catalytic convertor the work is carried out for the optimization of catalytic convertor and also to meet the BS4 compliance and also to reduced cost for the same. In this project we have prepared the samples with some variation in the substrate with res...

Lean burn mode of direct injection spark ignition engines (DISI) can improve the engine's thermal efficiency. However, it showed slow flame propagation and combustion instabilities which are strongly related to mixture distribution. Multiple injections control over in-cylinder charge distribution consequently on mode. Additionally, multiple reduce spray impingement enhance turbulence in compres...