A gasoline engine is burning 2 liters of fuel per hour. The energy of combustion of this fuel is 450,000 J/g. a.) If the engine goes through a 110 cycles per minute, how much thermal energy is absorbed per cycle? b.) If 30,100 J of mechanical work is performed per cycle, how much heat energy is discarded per cycle? c.) What is the power rating of this engine in kW and hp? d.) Calculate the thermal efficiency of this engine? e.) If the thermal efficiency is

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
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A gasoline engine is burning 2 liters of fuel
of combustion of this fuel is 450,000 J/g. a.) If
per hour.
The
energy
the engine goes through a 110 cycles per minute, how much
thermal energy is absorbed per cycle? b.) If 30,100 J of
mechanical work is performed per cycle, how much heat
energy is discarded per cycle? c.) What is the power rating of
this engine in kW and hp? d.) Calculate the thermal
efficiency of this engine? e.) If the thermal efficiency is
doubled, how much heat should be lessen in the heat sink?
Transcribed Image Text:A gasoline engine is burning 2 liters of fuel of combustion of this fuel is 450,000 J/g. a.) If per hour. The energy the engine goes through a 110 cycles per minute, how much thermal energy is absorbed per cycle? b.) If 30,100 J of mechanical work is performed per cycle, how much heat energy is discarded per cycle? c.) What is the power rating of this engine in kW and hp? d.) Calculate the thermal efficiency of this engine? e.) If the thermal efficiency is doubled, how much heat should be lessen in the heat sink?
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