7. Engine oils enter a 20 mm diameter tube at a temperature of 22°C and a flow rate of 0.8 kg/s. If the tube surface temperature is maintained at 150 °C, find the outlet temperature for a tube that is 10 m long as well as one that is 80 m long. Estimate the mean temperature to be 77 °C. Answer questions 7.1 and 7.2: 7.1. What is the outlet mean temperature, in °C, for the pipe that is 10 m in length? 7.2. What is the outlet mean temperature, in °C, for the pipe that is 80 m in length?

7. Engine oils enter a 20 mm diameter tube at a temperature of 22°C and a flow rate of 0.8 kg/s. If the tube surface temperature is maintained at 150 °C, find the outlet temperature for a tube that is 10 m long as well as one that is 80 m long. Estimate the mean temperature to be 77 °C. Answer questions 7.1 and 7.2: 7.1. What is the outlet mean temperature, in °C, for the pipe that is 10 m in length? 7.2. What is the outlet mean temperature, in °C, for the pipe that is 80 m in length?

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.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.4P: 5.4 Evaluate the Stanton number for flow over a tube from the following data: , , , , .

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