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A boiler is fired with coal containing 72.63% C, 14% ash ,1.6% N, and 1.2% S burnt under conditions that the elimination of combustibles from the refuse is complete. The air enters the furnace at 25°C, 760 mmHg, and 80% RH. The flue gases go to the stack at 280°C and 100 kPa. The average Orsat analysis of the flue gas is 8.41% CO2, 2.52% CO, 0.76% H₂ and 9.86% O₂. Calculate the following: a) % excess air b) ultimate analysis of the coal c) m³ flue gas/kg coal d) m³ air/kg coal

A boiler is fired with coal containing 72.63% C, 14% ash ,1.6% N, and 1.2% S burnt under conditions that the elimination of combustibles from the refuse is complete. The air enters the furnace at 25°C, 760 mmHg, and 80% RH. The flue gases go to the stack at 280°C and 100 kPa. The average Orsat analysis of the flue gas is 8.41% CO2, 2.52% CO, 0.76% H₂ and 9.86% O₂. Calculate the following: a) % excess air b) ultimate analysis of the coal c) m³ flue gas/kg coal d) m³ air/kg coal

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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Please help me answer all that requires answer. May you round it off to 4 decimal places. Thank you.

Problem 5 A boiler is fired with coal containing 72.63% C, 14% ash ,1.6% N, and 1.2% S burnt under conditions that the elimination of combustibles from the refuse is complete. The air enters the furnace at 25°C, 760 mmHg, and 80% RH. The flue gases go to the stack at 280°C and 100 kPa. The average Orsat analysis of the flue gas is 8.41% CO2, 2.52% CO, 0.76% H₂ and 9.86% O₂. Calculate the following: a) % excess air b) ultimate analysis of the coal c) m³ flue gas/kg coal d) m³ air/kg coal
Transcribed Image Text:Problem 5 A boiler is fired with coal containing 72.63% C, 14% ash ,1.6% N, and 1.2% S burnt under conditions that the elimination of combustibles from the refuse is complete. The air enters the furnace at 25°C, 760 mmHg, and 80% RH. The flue gases go to the stack at 280°C and 100 kPa. The average Orsat analysis of the flue gas is 8.41% CO2, 2.52% CO, 0.76% H₂ and 9.86% O₂. Calculate the following: a) % excess air b) ultimate analysis of the coal c) m³ flue gas/kg coal d) m³ air/kg coal
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