1. 400,000 Ibm/hr of 270°F water is to be heated to 370°F by condensing saturated390°F steam. (The steam does not sub cool upon condensing). Your job is to designthe heat exchanger. The following parameters represent constraint your design.number of tube passes4tube fluidwater being heatednumber of shell passshell fluidsteam being cooledU (based on outside tube area)700 BTU/hr – ft² – °F1 intube outside diametertube wall thickness1/16 inbulk tube fluid velocity5 ft/s(a) How many tubes are required per pass?(b) How many tubes are required total?(c) Allowing 3 ft for headers and flanges, how long should the exchanger be?

Given :- Number of tube passes : 4 Change of temperature : 270F-370F Velocity of fluid : 5ft/sec

1. 400,000 Ibm/hr of 270°F water is to be heated to 370°F by condensing saturated 390°F steam. (The steam does not sub cool upon condensing). Your job is to design the heat exchanger. The following parameters represent constraint your design. number of tube passes 4 tube fluid water being heated number of shell pass 1 shell fluid steam being cooled 700 BTU /hr – ft² – °F 1 in U (based on outside tube area) tube outside diameter tube wall thickness 1/16 in bulk tube fluid velocity 5 ft/s (a) How many tubes are required per pass? (b) How many tubes are required total? (c) Allowing 3 ft for headers and flanges, how long should the exchanger be?

1. 400,000 Ibm/hr of 270°F water is to be heated to 370°F by condensing saturated 390°F steam. (The steam does not sub cool upon condensing). Your job is to design the heat exchanger. The following parameters represent constraint your design. number of tube passes 4 tube fluid water being heated number of shell pass 1 shell fluid steam being cooled 700 BTU /hr – ft² – °F 1 in U (based on outside tube area) tube outside diameter tube wall thickness 1/16 in bulk tube fluid velocity 5 ft/s (a) How many tubes are required per pass? (b) How many tubes are required total? (c) Allowing 3 ft for headers and flanges, how long should the exchanger be?

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Heat Exchangers

Heat exchangers are the types of equipment that are primarily employed to transfer the thermal energy from one fluid to another, provided that one of the fluids should be at a higher thermal energy content than the other fluid.

Heat Exchanger

The heat exchanger is a combination of two words ''Heat'' and ''Exchanger''. It is a mechanical device that is used to exchange heat energy between two fluids.

Question

1. 400,000 Ibm/hr of 270°F water is to be heated to 370°F by condensing saturated
390°F steam. (The steam does not sub cool upon condensing). Your job is to design
the heat exchanger. The following parameters represent constraint your design.
number of tube passes
4
tube fluid
water being heated
number of shell pass
shell fluid
steam being cooled
U (based on outside tube area)
700 BTU/hr – ft² – °F
1 in
tube outside diameter
tube wall thickness
1/16 in
bulk tube fluid velocity
5 ft/s
(a) How many tubes are required per pass?
(b) How many tubes are required total?
(c) Allowing 3 ft for headers and flanges, how long should the exchanger be?

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