Finite-time Thermodynamic Modelling and Simulation of Irreversible Diesel Cycle Engines
نویسنده
چکیده
Department of Mechanical Engineering, National Institute of Technology Silchar Silchar, Assam, India E-mail:[email protected] or [email protected] ABSTRACT A finite-time thermodynamic modelling and simulation of irreversible Diesel cycle engines has been developed considering non-linear variable specific heats with temperature, heat transfer loss, internal irreversibility effects and engine friction loss. A parametric study on performance characteristics such as power and efficiency have been made and discussed which may be used in actual engine designs and applications. Effect of engine speed, heat transfer loss, and internal irreversibility with respect to compression ratio on power and cycle efficiency have been analysed and discussed.
منابع مشابه
Exergoeconomic analysis and genetic algorithm power optimization of an irreversible regenerative Brayton cycle
In this study, the performance of an irreversible regenerative Brayton cycle is sought through power maximizations using finite-time thermodynamic concept in finite-size components. Optimizations are performed using a genetic algorithm. In order to take into account the finite-time and finite-size concepts in the current problem, a dimensionless mass-flow rate parameter is used to deploy ti...
متن کاملExergoeconomic analysis and genetic algorithm power optimization of an irreversible regenerative Brayton cycle
In this study, the performance of an irreversible regenerative Brayton cycle is sought through power maximizations using finite-time thermodynamic concept in finite-size components. Optimizations are performed using a genetic algorithm. In order to take into account the finite-time and finite-size concepts in the current problem, a dimensionless mass-flow rate parameter is used to deploy ti...
متن کاملModeling of Heat Losses Within Combustion Chamber of Diesel Engines
The cylinder working fluid mean temperature, rate of heat fluxes to combustion chamber and temperature distribution on combustion chamber surface will be calculated in this research. By simulating thermodynamic cycle of engine, temperature distribution of combustion chamber will be calculated by the Crank-Nicolson method. An implicit finite difference method was used in this code. Special treat...
متن کاملFinite element analysis of thermo-mechanical stresses in diesel engines cylinder heads using a two-layer viscoelasticity model
Loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. One of the most important durability problems in diesel engines is due to the cracks valves bridge area. The purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. In this article, mechanical prope...
متن کاملThermo-mechanical analysis of fatigue cracks of diesel engines cylinder heads using a two-layer two-layer viscoplasticity model with considering viscosity effects
Loading conditions and complex geometry have led the cylinder heads to become the most challenging parts of diesel engines. One of the most important durability problems in diesel engines is due to the cracks valves bridge area. The purpose of this study is a thermo-mechanical analysis of cylinder heads of diesel engines using a two-layer viscoplasticity model. In this article, mechanical p...
متن کامل