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### 4-ph-8

Course: WEB 112, Fall 2009
School: Cornell
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Word Count: 123

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Solution Work 4.ph.8 backwards from the output, stream 5 at 150C and 500 atm. To avoid condensing H2O at 150C, the H2O partial pressure cannot exceed 4.7 atm. (See point 5 on the phase diagram below.) For the H2O partial pressure to stay below 4.7 atm at 500 atm total pressure, the H2O partial pressure at 1 atm total pressure must be below 4.7 atm / 500 = 0.0094 atm. To find the condenser temperature we move...

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Solution Work 4.ph.8 backwards from the output, stream 5 at 150C and 500 atm. To avoid condensing H2O at 150C, the H2O partial pressure cannot exceed 4.7 atm. (See point 5 on the phase diagram below.) For the H2O partial pressure to stay below 4.7 atm at 500 atm total pressure, the H2O partial pressure at 1 atm total pressure must be below 4.7 atm / 500 = 0.0094 atm. To find the condenser temperature we move horizontally the to left until we reach the liquid-vapor border. As shown by point 3 on the phase diagram below, the condenser must operate at 7C or below. The condenser temperature is 7C. pressure-temperature phase diagram for H2O 10 liquid + vapor 100% humid...

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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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Cornell - WEB - 112
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