Answered: a. The coal is supplied every hour at…

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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A boiler you make use of has coal, which is low in sulfur and nitrogen, as fuel. The coal contains 4.8% moisture and 15% ash. The air used for combustion is assumed to be at 92°F, and water vapor in air has a pressure of 20 mmHg. You analyzed the stack gas and found that it contains 14.26% CO2, 0.52% CO, 0.41% H2, 4.32% O2 and 80.49% N2. Water in the stack gas has a pressure of 68.8 mmHg and temperature is 464°F.

Calculate: Establish basis as 1 hour steady state operation.(round up to 4 decimal places)

a. The coal is supplied every hour at 3180 lb. How much air would be needed for every pound of coal.

B. What is the complete ultimate analysis of the fuel?

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