Question

Calculate the gross calorific value of coal having the following composition: C = 80%, H = 8%, S = 1%, O= 3%, N = 1% and ash = 7% using Dulong’s formula. Given latent heat of steam = 587 cal/g​

Answer 1

Explanation:

Calculate the net calorific value of a coal sample having the following composition: C=80%, H=5%, O=4%, N=3%, S=3.5% and ash=5%. Explanation: Apply the dulong's formula that is: HCV = 1/100[8080C + 34500(H-O/8) + 22400S], here the C, S, O, H are the percentages of carbon, sulphur, oxygen and hydrogen.

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