6.94 Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K, 278 kPa and exits at 120 kPa. The mass flow rate is 5.5 kg/s, and the power developed is 1120 kW. Stray heat transfer and kinetic and potential energy effects are negligible. Assuming k = 1.4, determine (a) the temperature of the air at the turbine exit, in K, and (b) the isentropic turbine efficiency. 837-2, 91.4%

6.94 Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K, 278 kPa and exits at 120 kPa. The mass flow rate is 5.5 kg/s, and the power developed is 1120 kW. Stray heat transfer and kinetic and potential energy effects are negligible. Assuming k = 1.4, determine (a) the temperature of the air at the turbine exit, in K, and (b) the isentropic turbine efficiency. 837-2, 91.4%

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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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.

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6.94 Air modeled as an ideal gas enters a turbine operating at steady state at 1040 K,
278 kPa and exits at 120 kPa. The mass flow rate is 5.5 kg/s, and the power developed is
1120 kW. Stray heat transfer and kinetic and potential energy effects are negligible.
Assuming k = 1.4, determine (a) the temperature of the air at the turbine exit, in K, and
(b) the isentropic turbine efficiency. 837-2, 91.4%

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