Fundamentals of Thermal-Fluid Sciences
5th Edition
ISBN: 9780078027680
Author: Yunus A. Cengel Dr., Robert H. Turner, John M. Cimbala
Publisher: McGraw-Hill Education
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Question
Chapter 13, Problem 32P
(a)
To determine
The force required to hold the fan.
(b)
To determine
The minimum power input required for the fan.
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Required information
Water initially at 200 kPa and 300°C is contained in a piston-cylinder device fitted with stops. The water is allowed to cool
at constant pressure until it exists as a saturated vapor and the piston rests on the stops. Then the water continues to cool
until the pressure is 100 kPa.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Water
200 kPa
300°C
On the T-V diagram, sketch, with respect to the saturation lines, the process curves passing through the initial, intermediate, and final states of the water. Label the
T, P, and V values for end states on the process curves.
Please upload your response/solution by using the controls provided below.
A piston-cylinder device contains 0.87 kg of refrigerant-134a at -10°C. The piston that is free to move has a mass of 12 kg
and a diameter of 25 cm. The local atmospheric pressure is 88 kPa. Now, heat is transferred to refrigerant-134a until the
temperature is 15°C. Use data from the tables.
R-134a
-10°C
Determine the change in the volume of the cylinder of the refrigerant-134a if the specific volume and enthalpy of R-134a at the initial
state of 90.4 kPa and -10°C and at the final state of 90.4 kPa and 15°C are as follows:
= 0.2418 m³/kg, h₁ = 247.77 kJ/kg
3
v2 = 0.2670 m³/kg, and h₂ = 268.18 kJ/kg
The change in the volume of the cylinder is
m
Chapter 13 Solutions
Fundamentals of Thermal-Fluid Sciences
Ch. 13 - Prob. 1PCh. 13 - Express Newton’s second law of motion for rotating...Ch. 13 - Prob. 3PCh. 13 - Prob. 4PCh. 13 - Prob. 5PCh. 13 - Prob. 6PCh. 13 - Prob. 7PCh. 13 - Prob. 8PCh. 13 - Prob. 9PCh. 13 - Prob. 10P
Ch. 13 - Prob. 11PCh. 13 - Prob. 12PCh. 13 - Prob. 13PCh. 13 - Prob. 14PCh. 13 - Prob. 15PCh. 13 - Prob. 16PCh. 13 - Prob. 17PCh. 13 - Prob. 18PCh. 13 - Water enters a 10-cm-diameter pipe steadily with a...Ch. 13 - A 2.5-cm-diameter horizontal water jet with a...Ch. 13 - A horizontal water jet of constant velocity V...Ch. 13 - A 90° elbow in a horizontal pipe is used to direct...Ch. 13 - Prob. 23PCh. 13 - Prob. 24PCh. 13 - Prob. 25PCh. 13 - Prob. 26PCh. 13 - Water accelerated by a nozzle to 35 m/s strikes...Ch. 13 - Prob. 28PCh. 13 - Prob. 29PCh. 13 - Prob. 31PCh. 13 - Prob. 32PCh. 13 - Prob. 33PCh. 13 - Prob. 34PCh. 13 - Prob. 35PCh. 13 - A 3-in-diameter horizontal water jet having a...Ch. 13 - Prob. 38PCh. 13 - Reconsider the helicopter in Prob. 13–38, except...Ch. 13 - Prob. 40PCh. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - Prob. 43PCh. 13 - Prob. 44PCh. 13 - Prob. 45PCh. 13 - Prob. 46PCh. 13 - Prob. 47PCh. 13 - Prob. 48RQCh. 13 - Prob. 49RQCh. 13 - Prob. 50RQCh. 13 - A 6-cm-diameter horizontal water jet having a...Ch. 13 - Prob. 52RQCh. 13 - A tripod holding a nozzle, which directs a...Ch. 13 - Prob. 54RQCh. 13 - Prob. 56RQCh. 13 - Prob. 57RQCh. 13 - Prob. 58RQCh. 13 - Prob. 59RQCh. 13 - Indiana Jones needs to ascend a 10-m-high...Ch. 13 - Prob. 61RQCh. 13 - Nearly frictionless vertical guide rails maintain...Ch. 13 - Prob. 63RQCh. 13 - Prob. 64RQ
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