Explanation Express the minimum power required by the compressor. W ˙ rev,in = m ˙ [ h 2 − h 1 − T 0 ( s 2 − s 1 ) ] (I) Here, mass flow rate is m ˙ , initial and final specific enthalpy is h 1 and h 2 respectively, surrounding temperature is T 0 and initial and final specific entropy is s 1 and s 2 respectively. Conclusion: Perform the unit conversion of temperature from ° F to R . T 1 = 60 ° F = ( 60 + 460 ) R = 520 R T 2 = 480 ° F = ( 480 + 460 ) R = 940 R Refer Table A-17E, “ideal gas properties of air ” and write the properties corresponding to initial temperature ( T 1 ) of 520 R as. h 1 = 124.27 Btu / lbm s 1 = 0.59173 Btu / lbm ⋅ R Here, specific enthalpy and entropy at saturated vapor is h g and s g respectively. Refer Table A-17E, “ideal gas properties of air” and write the properties corresponding to initial temperature ( T 1 ) of 940 R as. h 2 = 226.11 Btu / lbm s 2 = 0

8th Edition

ISBN: 9780073398174

Author: Yunus A. Cengel Dr., Michael A. Boles

Publisher: McGraw-Hill Education

See similar textbooks

Concept explainers

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.

Videos

Question

Chapter 8.8, Problem 56P

To determine

The minimum power required by the compressor.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 8.8, Problem 55P

Chapter 8.8, Problem 57P

Students have asked these similar questions

Figure: 06_P041 Copyright 2013 Pearson Education, publishing a Prentice Hall 2. Determine the force that the jaws J of the metal cutters exert on the smooth cable C if 100-N forces are applied to the handles. The jaws are pinned at E and A, and D and B. There is also a pin at F. 400 mm 15° 20 mm A 15° 15 D B 30 mm² 80 mm 20 mm 400 mm Figure: 06_P090 Copyright 2013 Pearson Education, publishing as Prentice Hall 15° 100 N 100 N 15°

A telemetry system is used to quantify kinematic values of a ski jumper immediately before the jumper leaves the ramp. According to the system r=560 ft , r˙=−105 ft/s , r¨=−10 ft/s2 , θ=25° , θ˙=0.07 rad/s , θ¨=0.06 rad/s2 Determine the velocity of the skier immediately before leaving the jump. The velocity of the skier immediately before leaving the jump along with its direction is ? I have 112.08 ft/s but can't seem to get the direction correct. Determine the acceleration of the skier at this instant. At this instant, the acceleration of the skier along with its direction is ? acceleration is 22.8 ft/s^2 but need help with direction. Need help with velocity direction and acceleration direction please.

For Problems 18-22 (Table 7-27), design a V-belt drive. Specify the belt size, the sheave sizes, the number of belts, the actual output speed, and the center distance.

Chapter 8 Solutions

Thermodynamics: An Engineering Approach

Ch. 8.8 - What final state will maximize the work output of...Ch. 8.8 - Is the exergy of a system different in different...Ch. 8.8 - How does useful work differ from actual work? For...Ch. 8.8 - Prob. 4P Ch. 8.8 - Consider two geothermal wells whose energy...Ch. 8.8 - Consider two systems that are at the same pressure...Ch. 8.8 - Prob. 7P Ch. 8.8 - Does a power plant that has a higher thermal...Ch. 8.8 - Prob. 9P Ch. 8.8 - 8–10C Can a process for which the reversible work...

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.