Thermodynamics: An Engineering Approach
9th Edition
ISBN: 9781259822674
Author: Yunus A. Cengel Dr., Michael A. Boles
Publisher: McGraw-Hill Education
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Chapter 1.11, Problem 99RP
The force generated by a spring is given by F = kx, where k is the spring constant and x is the deflection of the spring. The spring of Fig. 1–99 has a spring constant of 8 kN/cm. The pressures are P1 = 5000 kPa, P2 = 10,000 kPa, and P3 = 1000 kPa. If the piston diameters are D1 = 8 cm and D2 = 3 cm, how far will the spring be deflected? Answer: 1.72 cm
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1-99 The force generated by a spring is given by F=kx, where
k is the spring constant and x is the deflection of the spring.
The spring of Fig. Pl–99 has a spring constant of 8 kN/cm.
The pressures are P, = 5000 kPa, P, = 10,000 kPa, and
P = 1000 kPa. If the piston diameters are D, = 8 cm and
D, = 3 cm, how far will the spring be deflected? Answer: 1.72 cm
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D2
P2
Spring -
P3
P1
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In the refrigeration experiment you
obtained the following values while using
the fixed orifice valve:
1- absolute pressure at the valve inlet: 680
kPa
2- absolute pressure at the valve outlet:
186.7 kPa
3- temperature at the compressor outlet:
86.67°C
What is the value of the compressor work
per unit mass in kJ/kg? You can round
your result to one decimal place
A gasoline line is connected to a pressure gage through a double-U manometer, as shown in Fig. P1–110. If the reading of the pressure gage is 370 kPa, determine the gage pressure of the gasoline line.
Chapter 1 Solutions
Thermodynamics: An Engineering Approach
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