Comparative analysis of three simulation models applied on a motored internal combustion engine

2012 ◽  
Vol 60 ◽  
pp. 45-55 ◽  
Author(s):  
E.G. Pariotis ◽  
G.M. Kosmadakis ◽  
C.D. Rakopoulos
Keyword(s):  
Comparative Analysis ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Simulation Models ◽  
Internal Combustion

Comparative analysis between a PEM fuel cell and an internal combustion engine driving an electricity generator: Technical, economical and ecological aspects

2014 ◽  
Vol 63 (1) ◽  
pp. 354-361 ◽  
Author(s):  
Lúcia Bollini Braga ◽  
Jose Luz Silveira ◽  
Marcio Evaristo da Silva ◽  
Einara Blanco Machin ◽  
Daniel Travieso Pedroso ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Fuel Cell ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Pem Fuel Cell ◽  
Internal Combustion ◽  
Ecological Aspects

scholarly journals A Design of the Compression Chamber and Optimization of the Sealing of a Novel Rotary Internal Combustion Engine Using CFD

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2362
Author(s):  
Savvas Savvakis ◽  
Dimitrios Mertzis ◽  
Elias Nassiopoulos ◽  
Zissis Samaras
Keyword(s):  
Internal Combustion Engine ◽  
Cfd Simulation ◽  
Combustion Engine ◽  
Numerical Study ◽  
Simulation Models ◽  
Internal Combustion ◽  
Intake Port ◽  
Significant Difference ◽  
Port Design ◽  
Compression Chamber

The current paper investigates two particular features of a novel rotary split engine. This internal combustion engine incorporates a number of positive advantages in comparison to conventional reciprocating piston engines. As a split engine, it is characterized by a significant difference between the expansion and compression ratios, the former being higher. The processes are decoupled and take place simultaneously, in different chambers and on the different sides of the rotating pistons. Initially, a brief description of the engine’s structure and operating principle is provided. Next, the configuration of the compression chamber and the sealing system are examined. The numerical study is conducted using CFD simulation models, with the relevant assumptions and boundary conditions. Two parameters of the compression chamber were studied, the intake port design (initial and optimized) and the sealing system size (short and long). The best option was found to be the combination of the optimized intake port design with the short seal, in order to keep the compression chamber as close as possible to the engine shaft. A more detailed study of the sealing system included different labyrinth geometries. It was found that the stepped labyrinth achieves the highest sealing efficiency.

scholarly journals APLICACIÓN DE UN PROGRAMA DE CÁLCULO TÉRMICO PARA COMPROBAR EL FUNCIONAMIENTO DE UN MOTOR DIESEL PERKINS MODELO C4.236.V - GASODIESEL MEDIANTE ANÁLISIS COMPARATIVO

2017 ◽  
Vol 24 (2) ◽  
pp. 56
Author(s):  
Arturo Maza Rubina ◽  
Lastra Espinoza Luis
Keyword(s):  
Comparative Analysis ◽  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Thermal Calculation ◽  
Operating Cycle ◽  
Simulation Testing ◽  
Para Determinar ◽  
Experimental Values ◽  
Testing Bench

Este trabajo de investigación, se realizó en la ciudad de Lima y trata, sobre el desarrollo y aplicación de un programa en base al cálculo térmico; para determinar los parámetros de funcionamiento del motor de combustión interna de uso automotriz mediante la simulación de los distintos procesos que tienen lugar en los motores, los cuales permiten establecer los índices previsibles del ciclo de funcionamiento de un motor de combustión interna de tipo gasodiesel (GLP+D2). El desenvolvimiento del cálculo térmico, con respecto al comportamiento del motor trabajando como gasodiesel, es validado y contrastado con los valores experimentales, mediante un análisis comparativo de las características del motor Diesel Perkins, obtenidas en el banco de pruebas Newage y las características del motor simuladas; mediante el programa computacional AJESA 2004, luego se realiza la contrastación de cada subhipótesis permitiendo así la formulación de conclusiones. Palabras clave.- Gasodiesel, Cálculo térmico, Simulación, Banco de pruebas, Ajesa 2004, Newage, Válvula RND, Características de velocidad, Características de carga, Análisis comparativo. ABSTRACTThis research was conducted in Lima and is on the development and implementation of a program based on thermal calculation; to determine the operating parameters of an internal combustion engine for automotive use, by simulating various processes occurring in engines, which allow to establish the expected rate of the operating cycle of an internal combustion engine of gasodiesel type (GLP + D2). The development of the thermal calculation, based on the behavior of the engine working as gasodiesel, is validated and contrasted with the experimental values, through a comparative analysis of the characteristics of the diesel engine Perkins, obtained in the test Newage and simulated characteristics of the engine; by the computer program AJESA 2004, finally each sub-hypothesis is tested and this allows us to formulate conclusions. Keywords.- Gasodiesel, Thermal calculation, Simulation, Testing bench, Ajesa 2004, Newage, RND valve, Speed characteristics, Load characteristics, Comparative analysis.

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