Masters Theses

Abstract

"The injection of water in the spark ignition engine is not new. The effect of humidity in the air on the performance of the spark ignition engine probably initiated the early investigations. The water vapor in the inlet air decreases the speed of the flame front and necessitates spark advance to assure maximum power and maximum efficiency. Water particles in the air evaporate during the compression and combustion of the inducted charge and decrease the tendency of the engine to detonate. These effects are very evident when operating the spark ignition engine in a moist atmosphere. Water is not a foreign element to the internal combustion engine. It can be easily shown that when one pound of a hydrocarbon fuel burns more than one pound of water is formed in the combustion chamber...The fundamental reason for injecting water is to suppress detonation. The exact nature as to how this is accomplished is not definitely known, but it is reasoned that the effect is due to the high heat of vaporization of the water"--Introduction, page 1-2.

Advisor(s)

Miles, Aaron J.

Department(s)

Mechanical and Aerospace Engineering

Degree Name

M.S. in Mechanical Engineering

Publisher

Missouri School of Mines and Metallurgy

Publication Date

1949

Pagination

vi, 44 pages

Note about bibliography

Includes bibliographical references (page 70).

Rights

© 1949 Leonard C. Nelson, All rights reserved.

Document Type

Thesis - Open Access

File Type

text

Language

English

Library of Congress Subject Headings

Automobiles -- Motors -- Knock
Spark ignition engines -- Ignition
Spark ignition engines

Thesis Number

T 836

Print OCLC #

5977759

Electronic OCLC #

701900363

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