During the process of raising steam in a boiler, when the pressure was 1.9 bar gauge the temperature inside the boiler was130°C and when the pressure was 6.25 bar gauge (0.625 MPa) the temperature was 165°C. If the volume of the steam space is constant at 4.25 m. Calculate the mass of steam.

During the process of raising steam in a boiler, when the pressure was 1.9 bar gauge the temperature inside the boiler was130°C and when the pressure was 6.25 bar gauge (0.625 MPa) the temperature was 165°C. If the volume of the steam space is constant at 4.25 m. Calculate the mass of steam.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter1: Heat, Temperature, And Pressure

Section: Chapter Questions

Problem 6RQ: One British thermal unit will raise the temperature of _____ 1b of water _____F.

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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

During the process of raising steam in a boiler, when the pressure was 1.9 bar gauge the temperature inside the boiler was130°C and when
the pressure was 6.25 bar gauge (0.625 MPa) the temperature was 165°C. If the volume of the steam space is constant at 4.25 m. Calculate
the mass of steam.
Steam Properties :
Steam at 130°C
P
2.7 bar
Vg
0.6686 m3/kg
5.356 kg
4.356 kg
6.356 kg
3.356 kg

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