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Q1: It is desired to increase the output of a spark-ignition engine by either (1) raising the compression ratio from 8 to 10 or (2) increasing the inlet pressure from 1.0 bar to 1.5 bar. Using the constant-volume cycle as a model for engine operation, which procedure will give: (a) The highest pressure of the cycle? (b) The highest efficiency?

Q1: It is desired to increase the output of a spark-ignition engine by either (1) raising the compression ratio from 8 to 10 or (2) increasing the inlet pressure from 1.0 bar to 1.5 bar. Using the constant-volume cycle as a model for engine operation, which procedure will give: (a) The highest pressure of the cycle? (b) The highest efficiency?

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Q1: It is desired to increase the output of a spark-ignition engine by either (1) raising the compression ratio from 8 to 10 or (2) increasing the inlet pressure from 1.0 bar to 1.5 bar. Using the constant-volume cycle as a model for engine operation, which procedure will give: (a) The highest pressure of the cycle? (b) The highest efficiency?
Transcribed Image Text:Q1: It is desired to increase the output of a spark-ignition engine by either (1) raising the compression ratio from 8 to 10 or (2) increasing the inlet pressure from 1.0 bar to 1.5 bar. Using the constant-volume cycle as a model for engine operation, which procedure will give: (a) The highest pressure of the cycle? (b) The highest efficiency?
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