An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va = 2.2L. At the beginning of compression, Pi = 95kPa, and T = 290 K. The heat addition is 5 kJ, with one quarter added at constant volume and the rest added at constant pressure.Determine:a) each of the unknown temperatures at the various state, in K.b) the net work of the cycle, in kl.c) the power developed at 3000 cycles per minute, in kW.d) the thermal efficiency.e) the mean effective pressure, in kPa.

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a) each of the unknown temperatures at the various state, b) the net work of the cycle, in kJ. c) the power developed at 3000 cycles per minute, in kw. d) the thermal efficiency. ol tho moan offocti nroccure in ld

a) each of the unknown temperatures at the various state, b) the net work of the cycle, in kJ. c) the power developed at 3000 cycles per minute, in kw. d) the thermal efficiency. ol tho moan offocti nroccure in ld

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

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An air-standard dual cycle has a compression ratio of 9.1 and displacement of Va = 2.2L. At the beginning of compression, Pi = 95
kPa, and T = 290 K. The heat addition is 5 kJ, with one quarter added at constant volume and the rest added at constant pressure.
Determine:
a) each of the unknown temperatures at the various state, in K.
b) the net work of the cycle, in kl.
c) the power developed at 3000 cycles per minute, in kW.
d) the thermal efficiency.
e) the mean effective pressure, in kPa.

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