QUESTION 1 The economiser of a steam boiler receives its feed water at 34.6°C and supplies the evaporator at a temperature of 60.1°C. The water is then heated at a constant pressure of 600kPa and delivered with a dryness fraction of 0.73. The super-heater dries and superheats the steam to a specific volume of 0.394m³/kg. Determine the: specific volume of the wet steam;

QUESTION 1 The economiser of a steam boiler receives its feed water at 34.6°C and supplies the evaporator at a temperature of 60.1°C. The water is then heated at a constant pressure of 600kPa and delivered with a dryness fraction of 0.73. The super-heater dries and superheats the steam to a specific volume of 0.394m³/kg. Determine the: specific volume of the wet steam;

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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Question

specific enthalpy supplied by the super-heater;
boiler efficiency when 5450kg of steam is delivered per
hour and 791kg of coal is used per hour with a heat value
of 29.5MJ/kg; m
(

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Step 1: Given data

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Step 2: Properties from steam table

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Step 3: Specific volume of the wet steam at State 2

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Step 4: Specific enthalpy supplied by the super-heater

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Step 5: Boiler efficiency

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