SUSTAINABLE ENERGY (LL)
2nd Edition
ISBN: 9780357667224
Author: DUNLAP
Publisher: CENGAGE L
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Chapter 3, Problem 19P
To determine
Calculate the annual mass of the coal used.
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Calculate the Gross and Net calorific values of a coal having the following compositions, C = 63 %, H2 = 19 %, 02 = 03 %, S =13 % and ash=2.
At 260°C and 7.62 m/s, the products of combustion of 635 kg coal per hour travel through a breeching. Excess air, 50%.Assume square section breeching and find its dimensions. Sea level, and density of the flue gas-coal fired = 0.68 kg/m3 Ultimate Analysis of coal is as follows: Sulfur 0.55% ; Nitrogen 1.17% Hydrogen 4.5% ; Oxygen 6.03% Carbon 84.02% ; Ash 3.73%
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