Two engines have cylinders which are geometrically the same in size and shape. The cylinders of engine A are surrounded with a normal water jacket filled with a water-ethylene glycol solution. The cylinders of engine B are insulated, making this an adiabatic engine. Other than temperatures, the engines are operated with the same steady-state conditions (as much as possible). (a) Which engine has higher volumetric efficiency? Why? (b) Which engine has higher thermal efficiency? Why? (c) Which engine has hotter exhaust? Why? (d) Which engine would be more difficult to lubricate? Why? (e) Which engine would be a better SI engine? Why?
Two engines have cylinders which are geometrically the same in size and shape. The cylinders of engine A are surrounded with a normal water jacket filled with a water-ethylene glycol solution. The cylinders of engine B are insulated, making this an adiabatic engine. Other than temperatures, the engines are operated with the same steady-state conditions (as much as possible). (a) Which engine has higher volumetric efficiency? Why? (b) Which engine has higher thermal efficiency? Why? (c) Which engine has hotter exhaust? Why? (d) Which engine would be more difficult to lubricate? Why? (e) Which engine would be a better SI engine? Why?
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
Related questions
Question
Two engines have cylinders which are geometrically the same in size and shape. The cylinders
of engine A are surrounded with a normal water jacket filled with a water-ethylene glycol
solution. The cylinders of engine B are insulated, making this an adiabatic engine. Other than
temperatures, the engines are operated with the same steady-state conditions (as much as
possible). (a) Which engine has higher volumetric efficiency? Why? (b) Which engine has
higher thermal efficiency? Why? (c) Which engine has hotter exhaust? Why? (d) Which engine
would be more difficult to lubricate? Why? (e) Which engine would be a better SI engine?
Why?
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