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A fuel of Q₁ = 6888 kcal/kg was burned in the furnace of a 223 m² water tube boiler which was generating 5443 kg steam per hr at 14.06 kg/cm² ab, d and s, from 109 C feed, at a time when fuel consumption was 612 kg per hr. (a) Find kcal rating and percent rating. (b) Calculate over-all thermal efficiency.

A fuel of Q₁ = 6888 kcal/kg was burned in the furnace of a 223 m² water tube boiler which was generating 5443 kg steam per hr at 14.06 kg/cm² ab, d and s, from 109 C feed, at a time when fuel consumption was 612 kg per hr. (a) Find kcal rating and percent rating. (b) Calculate over-all thermal efficiency.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Section: Chapter Questions
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A fuel of Q₁ = 6888 kcal/kg was burned in the furnace of a 223 m² water tube boiler which was generating 5443 kg steam per hr at 14.06 kg/cm² ab, d and s, from 109 C feed, at a time when fuel consumption was 612 kg per hr. (a) Find kcal rating and percent rating. (b) Calculate over-all thermal efficiency.
Transcribed Image Text:A fuel of Q₁ = 6888 kcal/kg was burned in the furnace of a 223 m² water tube boiler which was generating 5443 kg steam per hr at 14.06 kg/cm² ab, d and s, from 109 C feed, at a time when fuel consumption was 612 kg per hr. (a) Find kcal rating and percent rating. (b) Calculate over-all thermal efficiency.
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