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Coal having the following analysis on a weight basis has a gross heating value of 29000 kJ/kg : carbon, 70.0%; hydrogen, 5.5%; nitrogen, 1.5%; sulphur, 3.0%; oxygen: 13.0%; ash, 7.0%. Calculate the net heating value given that the latent heat of vaporization of water is 2370 kJ/kg water.

Coal having the following analysis on a weight basis has a gross heating value of 29000 kJ/kg : carbon, 70.0%; hydrogen, 5.5%; nitrogen, 1.5%; sulphur, 3.0%; oxygen: 13.0%; ash, 7.0%. Calculate the net heating value given that the latent heat of vaporization of water is 2370 kJ/kg water.

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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Coal having the following analysis on a weight basis has a gross heating value of 29000 kJ/kg : carbon, 70.0%; hydrogen, 5.5%; nitrogen, 1.5%; sulphur, 3.0%; oxygen: 13.0%; ash, 7.0%. Calculate the net heating value given that the latent heat of vaporization of water is 2370 kJ/kg water.
Transcribed Image Text:Coal having the following analysis on a weight basis has a gross heating value of 29000 kJ/kg : carbon, 70.0%; hydrogen, 5.5%; nitrogen, 1.5%; sulphur, 3.0%; oxygen: 13.0%; ash, 7.0%. Calculate the net heating value given that the latent heat of vaporization of water is 2370 kJ/kg water.
Expert Solution
Step 1

Given:

Gross heating value, GCV = 29000 kJ/kg

Carbon = 70.0%

Hydrogen = 5.5%

Nitrogen = 1.5%

Sulphur = 3.0%

Oxygen = 13.0%

Ash = 7.0%

Latent heat of vaporization of water, λ = 2370 kJ/kg

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