Engine oil (c_p%3D2100 J/(kg-K)) is heated from 25 °C to 70 °C. The oil flows at a rate 0.5kgsec in a 2cm diameter thin walled copper tube. The oil is heated by condensing steam at 1000C on the outside of the 2cm tube in a counter-flow heat exchanger. The latent heat of vaporization for the steam is h_fg%32257kJkg. The overall heat transfer coefficient is U=1000 Wm2K, based on the 2cm diameter thin walled copper tube area. A) Find the overall heat transfer rate to the oil. B) Find the log-mean temperature difference.

Engine oil (c_p%3D2100 J/(kg-K)) is heated from 25 °C to 70 °C. The oil flows at a rate 0.5kgsec in a 2cm diameter thin walled copper tube. The oil is heated by condensing steam at 1000C on the outside of the 2cm tube in a counter-flow heat exchanger. The latent heat of vaporization for the steam is h_fg%32257kJkg. The overall heat transfer coefficient is U=1000 Wm2K, based on the 2cm diameter thin walled copper tube area. A) Find the overall heat transfer rate to the oil. B) Find the log-mean temperature difference.

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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