2) A heat-engine cycle uses steam as the working fluid. The maximum possible efficiency of the cycle is 35 percent. During the heat addition process, steam changes from a saturated liquid to a saturated vapor at a constant temperature of 265 °C. a. If the mass flow rate of steam is 2.5 kg/s, what is the net power output in kW? b. What is the temperature at which heat is rejected?

2) A heat-engine cycle uses steam as the working fluid. The maximum possible efficiency of the cycle is 35 percent. During the heat addition process, steam changes from a saturated liquid to a saturated vapor at a constant temperature of 265 °C. a. If the mass flow rate of steam is 2.5 kg/s, what is the net power output in kW? b. What is the temperature at which heat is rejected?

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.

Question

2) A heat-engine cycle uses steam as the working fluid. The maximum possible efficiency of the
cycle is 35 percent. During the heat addition process, steam changes from a saturated liquid to a
saturated vapor at a constant temperature of 265 °C.
a. If the mass flow rate of steam is 2.5 kg/s, what is the net power output in kW?
b. What is the temperature at which heat is rejected?

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