Steam at a pressure of 11 bar and a temperature of 320 °C is contained in a large vessel. Connected to the vessel through a valve is a turbine followed by a small initially evacuated tank with a volume of 0.60 m³. When emergency power is required, the valve is opened and the tank fills with steam until the pressure is 11 bar. The temperature in the tank is then 400 °C. The filling process takes place adiabatically and kinetic and potential energy effects are negligible. Determine the amount of work developed by the turbine in kJ.

Steam at a pressure of 11 bar and a temperature of 320 °C is contained in a large vessel. Connected to the vessel through a valve is a turbine followed by a small initially evacuated tank with a volume of 0.60 m³. When emergency power is required, the valve is opened and the tank fills with steam until the pressure is 11 bar. The temperature in the tank is then 400 °C. The filling process takes place adiabatically and kinetic and potential energy effects are negligible. Determine the amount of work developed by the turbine in kJ.

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

Steam at a pressure of 11 bar and a
temperature of 320 °C is contained in a large
vessel. Connected to the vessel through a
valve is a turbine followed by a small initially
evacuated tank with a volume of 0.60 m³.
When emergency power is required, the valve
is opened and the tank fills with steam until
the pressure is 11 bar. The temperature in the
tank is then 400 °C. The filling process takes
place adiabatically and kinetic and potential
energy effects are negligible. Determine the
amount of work developed by the turbine in
kJ.

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