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In a counter-current-flow tubular heat exchanger, a liquid food (milk), flowing in the inner pipe, is heated from 20 to 40°C. In the outer pipe the heating medium (water) cools from 90 to 50°C. The overall heat-transfer coefficient based on the inside diameter is 2000 W/(m^2-°C). The inside diameter is 5 cm and length of the heat exchanger is 10 m. The average specific heat of water is 4.181 kJ/(kg-°C). Calculate the mass flow rate of water in the outer pipe.

In a counter-current-flow tubular heat exchanger, a liquid food (milk), flowing in the inner pipe, is heated from 20 to 40°C. In the outer pipe the heating medium (water) cools from 90 to 50°C. The overall heat-transfer coefficient based on the inside diameter is 2000 W/(m^2-°C). The inside diameter is 5 cm and length of the heat exchanger is 10 m. The average specific heat of water is 4.181 kJ/(kg-°C). Calculate the mass flow rate of water in the outer pipe.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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please i need help need before 2:20 pm

In a counter-current-flow tubular heat exchanger, a liquid food (milk),
flowing in the inner pipe, is heated from 20 to 40°C. In the
outer pipe the heating medium (water) cools from 90 to
50°C. The overall heat-transfer coefficient based on the inside
diameter is 2000 W/(m^2-°C). The inside diameter is 5 cm and
length of the heat exchanger is 10 m. The average specific heat
of water is 4.181 kJ/(kg-°C). Calculate the mass flow rate of
water in the outer pipe.  Compare the amount of milk being heated to concurrent design.

 

: 96867.56 Js 96.86752 mass rate Water: - Qu= Q - M Ceo STw - a6.96756 Ko/6 96.86756 94 .86756 (4.191) (0- 90) 0.579 k/s ams the preduct : (milk) mass flow rate of Q - Q 96. 06756 (3.:051) (40-20) Q Cp AT Page 2 1 20 Q +7
Transcribed Image Text:: 96867.56 Js 96.86752 mass rate Water: - Qu= Q - M Ceo STw - a6.96756 Ko/6 96.86756 94 .86756 (4.191) (0- 90) 0.579 k/s ams the preduct : (milk) mass flow rate of Q - Q 96. 06756 (3.:051) (40-20) Q Cp AT Page 2 1 20 Q +7
: 96867.56 Js 96.86752 mass rate Water: - Qu= Q - M Ceo STw - a6.96756 Ko/6 96.86756 94 .86756 (4.191) (0- 90) 0.579 k/s ams the preduct : (milk) mass flow rate of Q - Q 96. 06756 (3.:051) (40-20) Q Cp AT Page 2 1 20 Q +7
Transcribed Image Text:: 96867.56 Js 96.86752 mass rate Water: - Qu= Q - M Ceo STw - a6.96756 Ko/6 96.86756 94 .86756 (4.191) (0- 90) 0.579 k/s ams the preduct : (milk) mass flow rate of Q - Q 96. 06756 (3.:051) (40-20) Q Cp AT Page 2 1 20 Q +7
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this one sir kindly answer please

13.190 19/19-k1 Soymilk is heated in a 3-m long, 5-cm I.D. tubular heat exchanger with an overall heat ransfer coefficient of 2555 W/m2-K. Water flows concurrently a with the product and ecreases in temperature from 82°C to 71°C. a. If the soymilk enters the heat exchanger at 5°C, what product flowrate would be required to heat it to 68.5°C b. If the configuration of the heat exchanger is reversed to countercurrent flow, given the same rate of heat transfer, what will be the final temperature of the soymilk?
Transcribed Image Text:13.190 19/19-k1 Soymilk is heated in a 3-m long, 5-cm I.D. tubular heat exchanger with an overall heat ransfer coefficient of 2555 W/m2-K. Water flows concurrently a with the product and ecreases in temperature from 82°C to 71°C. a. If the soymilk enters the heat exchanger at 5°C, what product flowrate would be required to heat it to 68.5°C b. If the configuration of the heat exchanger is reversed to countercurrent flow, given the same rate of heat transfer, what will be the final temperature of the soymilk?
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sir do you have a graph or diagram for this please??

 

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