Question: Which of the following is the expression for determination of calorific value of coal using Davies formulae? (where CV is calorific value, %H is percentage of hydrogen, %C is percentage of carbon, %O is percentage of oxygen and %S is percentage of sulphur.)
Options
A : CV = (6.543×%H + 403)[%C/3 + %H – (%O – %S)/8]
B : CV = (6.543×%H + 403)[%C/3 + %H + (%O – %S)/8]
C : CV = (6.543×%H – 403)[%C/3 + %H – (%O – %S)/8]
D : CV = (6.543×%H – 403)[%C/3 + %H + (%O – %S)/8]
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