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During the commissioning of an oil-fired boiler, it was found that it was necessary to maintain 4% O2 in the flue gas at the minimum firing rate and 2% O2 at the maximum firing rate in order to obtain complete combustion of the fuel. Calculate the excess air percentage at both firing rates.   The analysis of the oil was: carbon 85%, hydrogen 11%, sulfur 4%.

During the commissioning of an oil-fired boiler, it was found that it was necessary to maintain 4% O2 in the flue gas at the minimum firing rate and 2% O2 at the maximum firing rate in order to obtain complete combustion of the fuel. Calculate the excess air percentage at both firing rates.   The analysis of the oil was: carbon 85%, hydrogen 11%, sulfur 4%.

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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During the commissioning of an oil-fired boiler, it was found that it was necessary to maintain 4% O2 in the flue gas at the minimum firing rate and 2% O2 at the maximum firing rate in order to obtain complete combustion of the fuel. Calculate the excess air percentage at both firing rates.

 

The analysis of the oil was: carbon 85%, hydrogen 11%, sulfur 4%. 

 

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