A 2-m³ insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400 kPa. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 450°C. (a) Determine the mass of the steam that has entered and the temperature of the steam in the supply line, and (b) If the tank was initially evacuated while everything else was kept the same, what would be the temperature of the steam in the supply line?

A 2-m³ insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a supply line that carries steam at 400 kPa. Now the valve is opened, and steam is allowed to flow slowly into the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be 450°C. (a) Determine the mass of the steam that has entered and the temperature of the steam in the supply line, and (b) If the tank was initially evacuated while everything else was kept the same, what would be the temperature of the steam in the supply line?

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

A 2-m³ insulated tank initially containing saturated water vapor at 1 MPa is connected through a valve to a
supply line that carries steam at 400 kPa. Now the valve is opened, and steam is allowed to flow slowly into
the tank until the pressure in the tank rises to 2 MPa. At this instant the tank temperature is measured to be
450°C. (a) Determine the mass of the steam that has entered and the temperature of the steam in the supply
line, and (b) If the tank was initially evacuated while everything else was kept the same, what would be the
temperature of the steam in the supply line?

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