
Concept explainers
(a)
The high heat value in terms of moisture free.

Answer to Problem 7.12P
The high heat value in terms of moisture free is
Explanation of Solution
Given:
Moisture content is
Weight of sample placed in calorimeter is
Gross calorific value is
Weight of ash that remains in the bomb calorimeter after combustion is
Concept Used:
The moisture heat is subtracted from the original heat energy in case of moisture free condition.
Calculation:
Write the expression for high heat value in moisture free condition.
Here, high heat value in moisture free condition is
Convert the mass of the sample to pounds.
Substitute,
Conclusion:
Thus, the high heat value in moisture free condition is
(b)
The high heat value in moisture free and ash free conditions.

Answer to Problem 7.12P
The high heat value in moisture free and ash free condition is
Explanation of Solution
Concept Used:
The moisture heat and the ash heat is subtracted from the original heat energy in case of moisture free and ash free condition.
Calculation:
Write the expression for the high heat value in moisture free and ash free condition.
Here, high heat value in moisture free and ash free condition is
Convert the mass of ash to pounds.
Substitute,
Conclusion:
The value of the high temperature of heat in moisture free and ash free condition is calculated using the concept of subtracting moisture free and ash heat from original energy.
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Chapter 7 Solutions
Solid Waste Engineering
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