A surface condenser is to operate under the following conditions: 45,000 kW turbine, exhaust steam rate is 8 lb/kW-hr, 2” Hg absolute condenser pressure, ¾” no. 17 BWG admiralty tubes, 500F inlet water temp., 8 ft/s water velocity, 85% cleanliness factor, 15 0F terminal difference, 80% pump efficiency and 5ft friction drop in tunnels and pipes. Calculate the following:Surface Area (ft2)Volume of cooling water (gpm)Number of tubesActual length of tubesPump-motor power (hp)

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Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter47: High-pressure, Low-pressure, And Absorption Chilled-water Systems

Section: Chapter Questions

Problem 13RQ: The subcooling temperature in a condenser can be measured by taking the difference between the A....

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A surface condenser is to operate under the following conditions: 45,000 kW turbine, exhaust steam rate is 8 lb/kW-hr, 2” Hg absolute condenser pressure, ¾” no. 17 BWG admiralty tubes, 50⁰F inlet water temp., 8 ft/s water velocity, 85% cleanliness factor, 15 ⁰F terminal difference, 80% pump efficiency and 5ft friction drop in tunnels and pipes. Calculate the following:
Surface Area (ft²)
Volume of cooling water (gpm)
Number of tubes
Actual length of tubes
Pump-motor power (hp)

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