Abstract

This paper presents a new analytic model for the estimation of the trapping efficiency of two-stroke engines using an extremely reduced number of measured physical variables. Mainly, the model estimates the trapping efficiency according to the Ostwald diagram, to the molal concentration of carbon dioxide and oxygen at tailpipe and accordingto the mass flow of air and fuel. In order to provide a measure of effectiveness for the proposed model, a use case has been chosen. The model’s effectiveness has been evaluated comparing its outcomes with the results obtained by thermo-fluid dynamic simulation of the use case on a 0D-1D commercial code, whose scavenging model has been previously validated by an extensive experimental activity. The present study shows that, for all the cases considered, the model results differ no more than 11% in absolute value from the simulated ones. In brief, the accuracy of the model allows the estimation of the trapping efficiency for two-stroke engines with reasonable confidence, reduced computational effort and time and costs lower than the currently available techniques.

Autore Pugliese

• Laforgia Domenico , Ficarella Antonio , Carlucci Antonio Paolo

Tutti gli autori

• Carlucci A.P. , Ficarella A. , Laforgia D. , Longo M.

Titolo volume/Rivista

ENERGY PROCEDIA

Anno di pubblicazione

2015

ISSN

1876-6102

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

1

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile