Problem 4: A supply line contains a two-phase mixture of steam and water at 240 °C. To determine the quality of the mixture a device called a throttling calorimeter is used. In this device a small sample of the two-phase mixture is bled off the line and expanded through a throttling valve to atmospheric pressure (100 kPa). The temperature of the steam sample, T2, is measured on the downstream side of the valve. Find the quality of the mixture in the supply line for the following two cases: a. T2 = 125 °C. b. T2 = 150 °C. (Note that the two samples are superheated vapor because at the given temperatures, the temperature is above the boiling temperature for water at 100 kPa.) Steam - Water T, = 240 C Calorimeter P= 100 kPa Supply Line Flow

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Problem 4: A supply line contains a two-phase mixture of steam and water at 240 °C. To determine the quality
of the mixture a device called a throttling calorimeter is used. In this device a small sample of the two-phase
mixture is bled off the line and expanded through a throttling valve to atmospheric pressure (100 kPa). The
temperature of the steam sample, T2, is measured on the downstream side of the valve. Find the quality of the
mixture in the supply line for the following two cases:
a. T2 = 125 °C.
b. T2 = 150 °C.
(Note that the two samples are superheated vapor because at the given temperatures, the temperature is above
the boiling temperature for water at 100 kPa.)
Steam - Water
T, = 240 C
Calorimeter
P= 100 kPa
Supply Line
Flow
Transcribed Image Text:Problem 4: A supply line contains a two-phase mixture of steam and water at 240 °C. To determine the quality of the mixture a device called a throttling calorimeter is used. In this device a small sample of the two-phase mixture is bled off the line and expanded through a throttling valve to atmospheric pressure (100 kPa). The temperature of the steam sample, T2, is measured on the downstream side of the valve. Find the quality of the mixture in the supply line for the following two cases: a. T2 = 125 °C. b. T2 = 150 °C. (Note that the two samples are superheated vapor because at the given temperatures, the temperature is above the boiling temperature for water at 100 kPa.) Steam - Water T, = 240 C Calorimeter P= 100 kPa Supply Line Flow
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