Idle speed control of ultra-lean burn engines continues to be a major focus of automotive engineers owing to the benefits offered in terms of fuel economy and emissions reduction. This paper applies a recently proposed linear time varying model predictive approach for the idle speed control of ultra-lean burn internal combustion engines. Unlike conventional gasoline engines, the approach uses f...

the usage of turbochargers in diesel engines has led to the downsizing of the motors as well as usage of the waste gates in turbochargers. any dimensional reduction in turbochargers and appurtenant leads to an enhancement on the performance of internal combustion engines and in environmental problems in terms of aerodynamic, thermodynamic and mechanical specifications for both engines and turbo...

Nowadays, increased attention has been focused on internal combustion engine fuels. Regarding environmental effects of internal combustion engines particularly as sources of pollution and depletion of fossil fuels, compressed natural gas has been introduced as an alternative to gasoline and diesel fuels in many applications. A high research octane number which allows combustion at higher co...

Just like any thermodynamic system, combustion engines must be cooled to eliminate friction due heat. Without proper cooling, internal components, such as connecting rods, rod bearings, and pistons can severely damaged thermal expansion, leading severe damage the engine block or outright catastrophic failure. Modern are using coolant, which flows through passageways within pull heat away from s...

nowadays, increased attention has been focused on internal combustion engine fuels. regarding environmental effects of internal combustion engines particularly as sources of pollution and depletion of fossil fuels, compressed natural gas has been introduced as an alternative to gasoline and diesel fuels in many applications. a high research octane number which allows combustion at higher compre...

Practically, an accurate combustion chemistry model is of great importance in engine simulations when it is combined with the computational fluid dynamics computations. Syngas is used as one of the fuel options in internal combustion engines. In the current work, we optimize a combustion chemistry model of syngas using machine learning algorithms. Result shows that the optimized model can achie...

The concepts of residual gas and admission (or volumetric efficiency) coefficients are used exclusively by specialists in the field piston Internal Combustion Engines. However, it is preferable to apply volume fractions components working mixture consisting air, fuel, residual, recirculating gases, for evaluation filling. This simplifies makes more easy-to-grasp influence individual factors on ...

The feasibility of heat engines, coupled with an internal combustion engine and designed to increase the coefficient of efficiency of hydrocarbon or other chemical fuels, was considered. The prospects of the use of osmotic phenomena in aqueous solutions of thermosensitive polymers in order to improve the operation of heat engines were shown.