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Assume that in the operation of the engine in the previous problem, the air supply is reduced below in the theoretical value to the point such that 90% of the carbon in the fuel burns to CO2 and the remaining to CO. Assume also that under these conditions, the hydrogen in the gaseous combustion products is 40% of the CO in them, the oxygen being all consumed. Calculate the following: a. The Orsat analysis for the gases from the exhaust pipe b. The pounds of dry air required per pound fuel burnt c. The cubic feet of dry air that must be supplied to the engine per pound of fuel burnt, on the assumption that the barometer is normal and the air temperature is 70ºF. d. The volume of exhaust gases per pound of fuel burnt, if these leave the engine at 960°F.

Assume that in the operation of the engine in the previous problem, the air supply is reduced below in the theoretical value to the point such that 90% of the carbon in the fuel burns to CO2 and the remaining to CO. Assume also that under these conditions, the hydrogen in the gaseous combustion products is 40% of the CO in them, the oxygen being all consumed. Calculate the following: a. The Orsat analysis for the gases from the exhaust pipe b. The pounds of dry air required per pound fuel burnt c. The cubic feet of dry air that must be supplied to the engine per pound of fuel burnt, on the assumption that the barometer is normal and the air temperature is 70ºF. d. The volume of exhaust gases per pound of fuel burnt, if these leave the engine at 960°F.

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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I need answer in letter d number 3. 

2. An automobile engine is being operated with pure methyl alcohol using 10% excess air over that necessary for theoretical combustion and securing substantially complete combustion of the fuel. A sample of the exhaust gases is removed from the exhaust pipe and carefully analyzed in the Orsat. What analysis would you suspect to get? 3. Assume that in the operation of the engine in the previous problem, the air supply is reduced below in the theoretical value to the point such that 90% of the carbon in the fuel burns to CO2 and the remaining to CO. Assume also that under these conditions, the hydrogen in the gaseous combustion products is 40% of the CO in them, the oxygen being all consumed. Calculate the following: a. The Orsat analysis for the gases from the exhaust pipe b. The pounds of dry air required per pound fuel burnt c. The cubic feet of dry air that must be supplied to the engine per pound of fuel burnt, on the assumption that the barometer is normal and the air temperature is 70°F. d. The volume of exhaust gases per pound of fuel burnt, if these leave the engine at 960°F. 13 / 19
Transcribed Image Text:2. An automobile engine is being operated with pure methyl alcohol using 10% excess air over that necessary for theoretical combustion and securing substantially complete combustion of the fuel. A sample of the exhaust gases is removed from the exhaust pipe and carefully analyzed in the Orsat. What analysis would you suspect to get? 3. Assume that in the operation of the engine in the previous problem, the air supply is reduced below in the theoretical value to the point such that 90% of the carbon in the fuel burns to CO2 and the remaining to CO. Assume also that under these conditions, the hydrogen in the gaseous combustion products is 40% of the CO in them, the oxygen being all consumed. Calculate the following: a. The Orsat analysis for the gases from the exhaust pipe b. The pounds of dry air required per pound fuel burnt c. The cubic feet of dry air that must be supplied to the engine per pound of fuel burnt, on the assumption that the barometer is normal and the air temperature is 70°F. d. The volume of exhaust gases per pound of fuel burnt, if these leave the engine at 960°F. 13 / 19
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