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Calculate the energy content of solid waste having following composition using modified Dulong Equation.
Component % by mass
Carbon 35
Hydrogen 10
Oxygen 40
Nitrogen 8
Sulphur 3
Ash 4
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Component % by mass
Carbon 35
Hydrogen 10
Oxygen 40
Nitrogen 8
Sulphur 3
Ash 4
- 100%

Modified Dulongs formula for energy content is as follows:

Energy content $(Btu/lb) = 145C + 610*(H-O/2) + 40S +10N$

Since Ash is a left out matter in the process so that content of ash will not be included in the energy content calculations.

Energy content

= $145*35 + 610*(10-40/8) + 40*3 +10*8$

= 8325 Btu/lb

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