At the beginning of the compression process of an air-standard Otto cycle, p₁= 1 bar and T₁ = 300 K. Thecompression ratio is 8.5 and the heat addition per unit mass of air is 1400 kJ/kg. Determine (a) the net work,in kJ/kg, (b) the thermal efficiency of the cycle, (c) the mean effective pressure, in bar, (d) the maximumtemperature of the cycle, in K.

Given: The condition at the beginning of the cycle is p1=1 bar and T1=300 K. The compression ratio…

Answered: At the beginning of the compression…

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

See similar textbooks

Similar questions

p91#12. air with Cv=0.723 KJ/Kgm-degree Kelvin is compressed in a piston-cylinder machine according to pV^1.3=c from an initial temperature of 17degree celsius and pressure of 1 bar,to a final pressure of 5 bars. determine the final temperature,the heat transferred and the work.
The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure ratio for the cycle is 12 and the minimum and maximum temperatures are 520°R and 2800°R, respectively.Determine:(a) the percent thermal efficiency of the cycle.(b) the mass flow rate of air, in lb/h.(c) the net power developed by the cycle, in hp.
6. Air enters the compressor of an air-standard Brayton cycle with a volumetric flow rate of 60 m³/s at 0.8 bar, 280 K. The compressor pressure ratio is 20, and the maximum cycle temperature is 2100 K. For the compressor, the isentropic efficiency is 92% and for the turbine the isentropic efficiency is 95%. Determine (a) the net power developed, in MW. (b) the rate of heat addition in the combustor, in MW. (c) the thermal efficiency of the cycle.
3The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure ratio for the cycle is 12 and the minimum and maximum temperatures are 520°R and 2800°R, respectively.Determine:(a) the percent thermal efficiency of the cycle.(b) the mass flow rate of air, in lb/h.(c) the net power developed by the cycle, in hp.
The state at the beginning of compression of an air-standard Diesel cycle is fixed by p₁ = 100 kPa and T₁ = 310 K. The compression ratio is 18 and the cutoff ratio is 1.9. Determine: (a) the maximum temperature, in K. (b) the pressure at the end of the expansion, in kPa. (c) the net work per unit mass of air, in kJ/kg. (d) the percent thermal efficiency.
In an Otto cycle, the volume at the beginning of the isentropic compression is 0.74 L. If the displaced volume of the cycle is 0.68 L, the specific heat ratio is γ=1.3 and the work done is 455.6 kJ/kg, the heat rejected in kJ per kg of air is: Select one: a. 124.5 b. 521.4 c. 705.2 d. 405.0
In an Otto cycle, the volume at the beginning of the isentropic compression is 0.8 L. If the displaced volume of the cycle is 0.72 L, the specific heat ratio is γ=1.32 and the work done is 455 kJ/kg, the heat rejected in kJ per kg of air is: Select one: a. 417.7 b. 124.5 c. 521.4 d. 705.2
In Otto Cycle, air at 18oC is first compressed to one-ninth of its original volume. If the heat input to the cycle is 460 KJ/Kg of air, determine a. The temperature of the remaining points in the cycle. b. The ratio of the maximum and minimum pressure in the cycle.
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 8.5 and the heat addition per unit mass of air is 1400 kJ/kg.Determine:(a) the maximum temperature of the cycle, in K.(b) the net work, in kJ/kg.(c) the percent thermal efficiency of the cycle.(d) the mean effective pressure, in kPa.
At the beginning of the compression process of an air-standard Otto cycle, p1 = 1 bar and T1 = 300 K. The compression ratio is 3.5 and the heat addition per unit mass of air is 1300 kJ/kg. Determine: (a) the maximum temperature of the cycle, in K. (b) the net work, in kJ/kg. (c) the percent thermal efficiency of the cycle. (d) the mean effective pressure, in kPa.
The rate of heat addition to an ideal air-standard Brayton cycle is 1.0 x 107 Btu/h. The pressure ratio for the cycle is 12 and the minimum and maximum temperatures are 520°R and 2800°R, respectively.Determine:(a) the percent thermal efficiency of the cycle.(b) the mass flow rate of air, in lb/h.(c) the net power developed by the cycle, in hp.
_.. A steam compressor operates with P₁ = 100 kPa and x1 = 1 at the inlet, a final pressure of 1600 kPa at the exit, a mass flow rate of m = 5 kg/s, and an isentropic efficiency of n = 85%. Complete a thermodynamic analysis of the compressor, using the appropriate data for water, by finding: (A) The isentropic temperature at the exit, T2s, (B) The actual temperature at the compressor exit, T2, and (C) the rate of entropy production of the compressor, $gen. W

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS