FLUID MECHANICS-EBOOK>I<
2nd Edition
ISBN: 2819480256061
Author: HIBBELER
Publisher: INTER PEAR
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Chapter 8, Problem 46P
To determine
The velocity of the water for the model.
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Steam enters the high-pressure turbine of a steam power plant that operates on the ideal reheat Rankine cycle at 700 psia and 900°F and leaves as saturated vapor. Steam is then reheated to 800°F before it expands to a pressure of 1 psia. Heat is transferred to the steam in the boiler at a rate of 6 × 104 Btu/s. Steam is cooled in the condenser by the cooling water from a nearby river, which enters the condenser at 45°F. Use steam tables.
NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part.
Determine the pressure at which reheating takes place. Use steam tables.
The reheat pressure is psia.Find thermal efficieny Find m dot
This is an old exam practice question.
As shown in the figure below, moist air at T₁ = 36°C, 1 bar, and 35% relative humidity enters a heat exchanger operating at steady state
with a volumetric flow rate of 10 m³/min and is cooled at constant pressure to 22°C. Ignoring kinetic and potential energy effects,
determine:
(a) the dew point temperature at the inlet, in °C.
(b) the mass flow rate of moist air at the exit, in kg/min.
(c) the relative humidity at the exit.
(d) the rate of heat transfer from the moist air stream, in kW.
(AV)1, T1
P₁ = 1 bar
11
= 35%
120
T₂=22°C
P2 = 1 bar
Chapter 8 Solutions
FLUID MECHANICS-EBOOK>I<
Ch. 8 - Prob. 1PCh. 8 - Prob. 2PCh. 8 - Prob. 3PCh. 8 - Prob. 4PCh. 8 - Prob. 5PCh. 8 - Prob. 6PCh. 8 - The pressure change that occurs in the aortic...Ch. 8 - Express the group of variables L, μ, ρ, V as a...Ch. 8 - Prob. 9PCh. 8 - Prob. 10P
Ch. 8 - Prob. 11PCh. 8 - Prob. 12PCh. 8 - Prob. 13PCh. 8 - The speed of sound V in air is thought to depend...Ch. 8 - Prob. 15PCh. 8 - Prob. 16PCh. 8 - Prob. 17PCh. 8 - Prob. 18PCh. 8 - The discharge Q over the weir A depends upon the...Ch. 8 - Prob. 20PCh. 8 - Prob. 21PCh. 8 - Prob. 22PCh. 8 - Prob. 23PCh. 8 - Prob. 24PCh. 8 - As the liquid drains from the pipette, the exit...Ch. 8 - The discharge Q from a turbine is a function of...Ch. 8 - The flow of air Q through the fan is a function of...Ch. 8 - The drag FD on the square plate held normal to the...Ch. 8 - Prob. 29PCh. 8 - Prob. 30PCh. 8 - Prob. 31PCh. 8 - The head loss hL in a pipe depends upon its...Ch. 8 - Prob. 33PCh. 8 - The change in pressure Δp in the pipe is a...Ch. 8 - The drag FD on the automobile is a function of its...Ch. 8 - Prob. 36PCh. 8 - Prob. 37PCh. 8 - The diameter D of oil spots made on a sheet of...Ch. 8 - Prob. 39PCh. 8 - The height H of water as it passes over a small...Ch. 8 - Water and crude oil flow through the pipes with a...Ch. 8 - Prob. 42PCh. 8 - If the water in a river is flowing at 16 ft/s, and...Ch. 8 - Prob. 44PCh. 8 - Prob. 45PCh. 8 - Prob. 46PCh. 8 - Prob. 47PCh. 8 - Prob. 48PCh. 8 - The flow of water around the structural support is...Ch. 8 - If the drag on a 15-m-long airplane is to be...Ch. 8 - Prob. 51PCh. 8 - A 15-ft-long submarine is intended to travel at 15...Ch. 8 - The flow of water around the bridge pier is to be...Ch. 8 - Prob. 54PCh. 8 - Prob. 55PCh. 8 - Prob. 56PCh. 8 - Prob. 57PCh. 8 - Prob. 58PCh. 8 - The jet plane can fly at Mach 2 in 40°F air. What...Ch. 8 - Prob. 60PCh. 8 - The drag coefficient on an airplane is defined by...Ch. 8 - Prob. 62PCh. 8 - Prob. 63PCh. 8 - Prob. 64PCh. 8 - A ship has a length of 180 m and travels in the...
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