ADiesel cycle enginewith internal and external irreversibilities of finite combustion rate of the fuel, friction and heat leakage is investigated in this paper. The heat transfer between the working fluid and the environment outside the cylinder obeys generalized radiative heat transfer law [q ∝ ∆(T n)]. Under the conditions of the fixed total cycle time and fuel consumed per cycle, the optimal...

In this study, performance and combustion characteristics of dual fuel operations (biogas, biogas+hydrogen) were experimentally analyzed compared with corresponding baseline diesel in four-cylinder, common-rail engine without thermal barrier coated piston. Tests conducted at three different loads (50 Nm, 75 100 Nm) a constant speed 1750 min-1. Engine pistons Yttria Stabilized Zirconia material ...

Today, the prices of fossil fuels such as gasoline and diesel are skyrocketing, oil depletion air pollution major challenges for us auto industry in particular. Natural gas has known a potential alternative fuel internal combustion engines because its advantages octane number, which is higher than that gasoline, low heat value comparison with safety use. This paper presents study on influence s...

Although YSZ ceramic coating has been used in the field of aeroengines for a long time to protect blades from high temperature erosion, its application on marine engines is still very rare. In this study, powder was sprayed onto upper surface Al-Si alloy piston by atmospheric plasma spraying. The with or without coatings applied diesel engine bench, and ship propulsion characteristics test carr...

A conceptual design of Stirling engine suitable for onboard aircraft application is the motivation behind this study. The aim to evaluate suitability system be integrated in as part energy contributor by recycling waste thermal energy. parametric evaluation an established Wobble-Yoke Engine state space model was performed determine a pre-compensator that able produce highest power output given ...