The oil (cp= 1759 J/kg.℃) from an oil cooled electric transformer is cooled from 79.5℃ to 29.4℃ at the rate of 1360.5kg per hour. This is done in an oil-water heat exchanger that receives 2948kg/hr of water at 15.6℃. For the heat exchanger U=295 W/m2℃. Find the exit temperature of water. answer: 25.294 degrees C
The oil (cp= 1759 J/kg.℃) from an oil cooled electric transformer is cooled from 79.5℃ to 29.4℃ at the rate of 1360.5kg per hour. This is done in an oil-water heat exchanger that receives 2948kg/hr of water at 15.6℃. For the heat exchanger U=295 W/m2℃. Find the exit temperature of water. answer: 25.294 degrees C
Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)
8th Edition
ISBN:9781305387102
Author:Kreith, Frank; Manglik, Raj M.
Publisher:Kreith, Frank; Manglik, Raj M.
Chapter10: Heat Exchangers
Section: Chapter Questions
Problem 10.17P
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Question
The oil (cp= 1759 J/kg.℃) from an oil cooled electric transformer is cooled from 79.5℃ to 29.4℃ at the rate of 1360.5kg per hour. This is done in an oil-water heat exchanger that receives 2948kg/hr of water at 15.6℃. For the heat exchanger U=295 W/m2℃. Find the exit temperature of water.
answer: 25.294 degrees C
![J
58. The oil (cp=1759
kg.°C
i from an oil cooled electric transformer is cooled
from 79.5°C to 29.4°C at the rate of 1360.5kg per hour. This is done in a
oil-water heat exchanger that receives 2948kg/hr of water at l5.8C. For the
heat exchanger U=295w/m²°C. Find the exit temperature of water.
Ans: 25.294 °C](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F27defd64-5c27-45e0-9c2d-f8b6e49749c2%2Fbfcafef0-f5f9-4a1c-888b-ddb7e867047a%2Fppj8agj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:J
58. The oil (cp=1759
kg.°C
i from an oil cooled electric transformer is cooled
from 79.5°C to 29.4°C at the rate of 1360.5kg per hour. This is done in a
oil-water heat exchanger that receives 2948kg/hr of water at l5.8C. For the
heat exchanger U=295w/m²°C. Find the exit temperature of water.
Ans: 25.294 °C
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