Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 05 Jan 2018 My Price 5.00

stoichiometric gasoline.

A two-liter, four-cylinder, open-chamber SI engine operates at 3500 RPM using stoichiometric gasoline. At this speed volumetric efficiency is 93%, combustion efficiency is 98%, indicated thermal efficiency is 47%, and mechanical efficiency is 86%.

Calculate:

(a) Brake power. [kW]

(b) bmep. [kPa]

(c) Amount of unburned fuel exhausted from the engine. [kg/hr]

(d) bsfc. [gmlkW-hr]

(e) Compare these results with those of Problem 7-8.

Problem

The engine in Problem 7-7 has a volumetric efficiency of 92%, an overall combustion efficiency of 99%, an indicated thermal efficiency of 52%, and a mechanical efficiency of 86% when operating at 3500 RPM.

Calculate:

(a) Brake power at this condition. [kW]

(b) bmep. [kPa]

(c) Amount of unburned fuel exhausted from the engine.[kglhr]

(d) bsfc. [gmlkW-hr]

 

Answers

Maurice Tutor
(5)
Status NEW Posted 05 Jan 2018 02:01 PM My Price 5.00

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