A water tube boiler operating at a pressure of 1.4 Mpa and a temperature of 250°C with an enthalpy of 2927.2 kJ/kg has an overall efficiency of 82%. The feedwater enters the boiler at a temperature of 95°C with an enthalpy of 397.96 kJ/kg. The boiler operates at 130% rating when using coal with a HHV of 30,250 kJ/kg of dry coal. Coal with 6% moisture and 8% ash is burned at a rate of 910 kg/hr. Find Equivalent specific evaporation in kg of steam per kg of coal

A water tube boiler operating at a pressure of 1.4 Mpa and a temperature of 250°C with an enthalpy of 2927.2 kJ/kg has an overall efficiency of 82%. The feedwater enters the boiler at a temperature of 95°C with an enthalpy of 397.96 kJ/kg. The boiler operates at 130% rating when using coal with a HHV of 30,250 kJ/kg of dry coal. Coal with 6% moisture and 8% ash is burned at a rate of 910 kg/hr. Find Equivalent specific evaporation in kg of steam per kg of coal

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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