[Ans: 9227.76 kcal/kg] 9. A sample coal contains Carbon = 83%; hydrogen = 7.5%; sulphur = 1.5%; nitrogen oxygen = 8.4%. Find the gross calorific value using Dulong formula. %3D 0.6%; %3D [Ans: 8965.25 kcal/kg]

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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answer number 9

8. Calculate the gross and net calorific value of coal having the following composition: Carbon =
85%; Hydrogen = 8%; sulphur = 1%, nitrogen = 2%; and ash = 4%. (Latent heat of steam = 587
cal/g)
[Ans: 9227.76 kcal/kg]
9. A sample coal contains Carbon = 83%; hydrogen = 7.5%; sulphur = 1.5%; nitrogen = 0.6%;
oxygen = 8.4%. Find the gross calorific value using Dulong formula.
[Ans: 8965.25 kcal/kg]
Transcribed Image Text:8. Calculate the gross and net calorific value of coal having the following composition: Carbon = 85%; Hydrogen = 8%; sulphur = 1%, nitrogen = 2%; and ash = 4%. (Latent heat of steam = 587 cal/g) [Ans: 9227.76 kcal/kg] 9. A sample coal contains Carbon = 83%; hydrogen = 7.5%; sulphur = 1.5%; nitrogen = 0.6%; oxygen = 8.4%. Find the gross calorific value using Dulong formula. [Ans: 8965.25 kcal/kg]
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