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a) Consider heat transfer to oil flow inside a copper pipe. Is the pipe length affecting the heat transfer rate into the oil? Briefly explain.

a) Consider heat transfer to oil flow inside a copper pipe. Is the pipe length affecting the heat transfer rate into the oil? Briefly explain.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Q2 a) Consider heat transfer to oil flow inside a copper pipe. Is the pipe length affecting the heat transfer rate into the oil? Briefly explain. b) Used engine oil can be recycled by a patented reprocessing system. Suppose that such a system includes a process during which engine oil flows through a 1-cm-internal diameter, 0.02-cm- wall copper tube at the rate of 0.05 kg/s. The oil enters at 35°C and is to be heated to 45°C by atmospheric-pressure steam condensing on the outside, as shown in figure given below. i) ii) iii) Determine the condensing steam temperature at 1 atm, T. [°C]. Calculate the convection heat transfer coefficient for the oil inside the pipe, [W/m'.K]. Calculate the rate of heat transfer rate into the oil, [kW], and, determine the length of the tube required. iv) Condensing steam Ct lam Oil in 35°C Oil out 0.05 kg/s I em 45°C 0.02 cm Copper tube L = ?
Transcribed Image Text:Q2 a) Consider heat transfer to oil flow inside a copper pipe. Is the pipe length affecting the heat transfer rate into the oil? Briefly explain. b) Used engine oil can be recycled by a patented reprocessing system. Suppose that such a system includes a process during which engine oil flows through a 1-cm-internal diameter, 0.02-cm- wall copper tube at the rate of 0.05 kg/s. The oil enters at 35°C and is to be heated to 45°C by atmospheric-pressure steam condensing on the outside, as shown in figure given below. i) ii) iii) Determine the condensing steam temperature at 1 atm, T. [°C]. Calculate the convection heat transfer coefficient for the oil inside the pipe, [W/m'.K]. Calculate the rate of heat transfer rate into the oil, [kW], and, determine the length of the tube required. iv) Condensing steam Ct lam Oil in 35°C Oil out 0.05 kg/s I em 45°C 0.02 cm Copper tube L = ?
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