A New Practical Model for the Scavenging Process in a Two-Stroke Cycle Engine Dept. of Mechanical Engineering Ben-Gurion University, Beer-Sheva, Israel (At present on a sabbatical leave at M.I.T.)

Format:

Conference/Event

Author/Creator:

Sher, Eran, author.

Conference Name:

SAE International Congress & Exposition (1985-02-25 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1985

Summary:

A semi-empirical model is proposed to represent the scavenging process in cross, loop or uniflow scavenged engines. The model is based on the assumption that in most cases (if not in all) the time variation of the mass fraction of fresh air content in the gas passing through the exhaust port (β) exhibits an "S" type curve. An exponential function of the form ofis suggested to fit this curve where the shape and the form factors may consider any combination of perfect displacement, perfect mixing and short-circuiting processes. The charging efficiency was then calculated and compared with other models - the isothermal mixing, the non-isothermal mixing, the Benson model and a detailed computer model. The new model has been found as a realistic model for modern engine design and an easy-to-use model for computer simulations

Notes:

Vendor supplied data

Publisher Number:

850085

Access Restriction:

Restricted for use by site license