5.1.4 In a test on a boiler, the following observations were made: Coal burned per hour = 480kg Water evaporated per hour = 4375kg Boiler pressure Feed water temperature = 95°C Temperature of steam leaving the boiler = 260°C Calorific value of coal used = 30.7MJ/kg %3D 3.0MPA %3D %3D Take: C, of superheated steam = 2.093kJ/kgK %3D Determine: 5.1.4.1 the efficiency of the boiler (

5.1.4 In a test on a boiler, the following observations were made: Coal burned per hour = 480kg Water evaporated per hour = 4375kg Boiler pressure Feed water temperature = 95°C Temperature of steam leaving the boiler = 260°C Calorific value of coal used = 30.7MJ/kg %3D 3.0MPA %3D %3D Take: C, of superheated steam = 2.093kJ/kgK %3D Determine: 5.1.4.1 the efficiency of the boiler (

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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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

5.1.4 In a test on a boiler, the following observations were made:
Coal burned per hour = 480kg
Water evaporated per hour = 4375kg
Boiler pressure
Feed water temperature 95°C
Temperature of steam leaving the boiler = 260°C
Calorific value of coal used = 30.7MJ/kg
%3D
%3D
3.0MPA
%3D
%3D
Take: Cp of superheated steam = 2.093k)/kgK
%3D
Determine:
5.1.4.1
the efficiency of the boiler (

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