Explanation Given information: The condenser pressure is 80 kPa and atmospheric pressure is 98 kPa . Write the expression for gauge pressure. P g a u g e = − P v a c u u m ..... (I) Here, gauge pressure is P g a u g e and vacuum pressure is P v a c u u m . Write the expression for absolute pressure. P a b s = P a t m − P v a c u u m ..... (II) Here, absolute pressure is P a b s and atmospheric pressure is P a t m . Substitute 80 kPa for P v a c u u m in Equation (I). P g a u g e = − 80 kPa ..... (III) Convert pressure from kPa to kN / m 2 . P g a u g e = − 80 ( 1 kPa 1 kN / m 2 1 kPa ) = − 80 kN / m 2 ..... (IV) Convert Pressure from kPa to lbf / in 2 . P g a u g e = − 80 kPa = − 80 ( 1 kPa .145 lbf / in 2 1 kPa ) = − 11.6 lbf / in 2 ..... (V) Convert Pressure from kPa to psi . P g a u g e = − 80 kPa = − 80 ( 1 kPa .145 psi 1 kPa ) = − 11.6 psi ..... (VI) Convert Pressure from kPa to mmHg . P g a u g e = − 80 kPa = − 80 ( 1 kPa 7.5 mmHg 1 kPa ) = − 600 mmHg ...... (VII) Substitute 80 kPa for P v a c u u m and 98 kPa for P a t m in equation (II)

Fluid Mechanics Fundamentals And Applications

3rd Edition

ISBN: 9780073380322

Author: Yunus Cengel, John Cimbala

Publisher: MCGRAW-HILL HIGHER EDUCATION

See similar textbooks

Videos

Question

Chapter 3, Problem 23P

To determine

The gauge pressure in kPa.

The gauge pressure in kN/m2.

The gauge pressure in lbf/in2.

The gauge pressure in psi.

The gauge pressure in mmHg.

The absolute pressure in kPa.

The absolute pressure in kN/m2.

The absolute pressure in lbf/in2.

The absolute pressure in psi.

The absolute pressure in mmHg.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Chapter 3, Problem 22P

Chapter 3, Problem 24P

Students have asked these similar questions

3. The structure in Figure 3 is loaded by a horizontal force P = 2.4 kN at C. The roller at E is frictionless. Find the axial force N, the shear force V and the bending moment M at a section just above the pin B in the member ABC and illustrate their directions on a sketch of the segment AB. B P D A 65° 65° E all dimensions in meters Figure 3

4. The distributed load in Figure 4 varies linearly from 3wo per unit length at A to wo per unit length at B and the beam is built in at A. Find expressions for the shear force V and the bending moment M as functions of x. 3W0 Wo A L Figure 4 2 B

1. The beam AB in Figure 1 is subjected to a uniformly distributed load wo = 100 N/m. Find the axial force N, the shear force V and the bending moment M at the point D which is midway between A and B and illustrate their directions on a sketch of the segment DB. wo per unit length A D' B all dimensions in meters

Chapter 3 Solutions

Fluid Mechanics Fundamentals And Applications

Ch. 3 - Someone claims that the absolute pressure in a...Ch. 3 - A tinysteel cube is suspended in water by a...Ch. 3 - Express Pascal’s law, and give a real-world...Ch. 3 - Consider two identical fans, one at sea level and...Ch. 3 - What is the difference between gage pressure and...Ch. 3 - Explain why some people experience nose bleeding...Ch. 3 - Prob. 7P Ch. 3 - A vacuum gage connected to a chamber reads 36 kPa...Ch. 3 - The pressure at the exit of an air compressor is...Ch. 3 - The pressure in a water line is 1500 kPa. What is...

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.

Solution Summary: The author compares the gauge pressure in kPa with the absolute pressure, which is -80.

Videos

The gauge pressure in kPa. The gauge pressure in kN/m2. The gauge pressure in lbf/in2. The gauge pressure in psi. The gauge pressure in mmHg. The absolute pressure in kPa. The absolute pressure in kN/m2. The absolute pressure in lbf/in2. The absolute pressure in psi. The absolute pressure in mmHg.

Want to see the full answer?

Chapter 3 Solutions