Q2a) Consider heat transfer to oil flow inside a copper pipe. Is the pipe length affecting the heattransfer rate into the oil? Briefly explain.b) Used engine oil can be recycled by a patented reprocessing system. Suppose that such a systemincludes 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 byatmospheric-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 lamOil in35°COil out0.05 kg/sI em45°C0.02 cmCopper tubeL = ?

"Since you have asked multiple questions, we will solve the first question for you. If you want any…

Answered: a) Consider heat transfer to oil flow…

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

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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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

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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