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Refer to the shell-and-tube heat exchanger shown in Fig. 9.13. The outer tube has an OD of
of the inner tube is
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Applied Fluid Mechanics
- Mention Applications of heat exchangersarrow_forwardA shell-and-tube heat exchanger is made of two standard steel tubes, as shown in Fig. 9.13 . The outer tube has an OD of 7/8 in and the OD for the inner tube is ½ in. Each tube has a wall thickness of 0.049 in. Calculate the required ratio of the volume flow rate in the shell to that in the tube if the average velocity of flow is to be the same in each. Answer is Qshell/ Qtube= 2.19. Please show how to solve.arrow_forwardWhat is the log mean temperature difference in oC of a double-pipe counterflow heat exchanger where the fluid enters at 90oC and exits at 50oC. Inside the inner pipe another fluid enters at 20oC and exits at 60oC.arrow_forward
- Explain the meaning and usefulness of the effective diameter (a type of equivalent diameter) for the annular region in a double pipe heat exchanger?arrow_forwardWhat are the 3 major thermal resistances to heat flow in a double -pipe heat exchanger. State assumptions.arrow_forwardA still mill desires to cool 3000 gal/hr of an inorganic liquid from 250oF to 180oF by Lehigh River water flowing through a shell-and-tube exchanger at a rate of 5000 gal/hr. The liquid is somewhat acidic in nature and so an alloy exchanger is probably required.Within the plant is an unused S-and-T, floating-head exchanger have one shell pass and two tube passes. The shell is mild steel, and the tubes are type 304 stainless. Specifications of the surplus exchanger revel a 20-in I.D. shell with 158 1-in 14 BWG tubes 16 ft long laid out on a 1.25 in square pitch. Baffles are placed 6-in apart.Will the surplus exchanger be suitable for the cooling requirements? Assume the inorganicliquid has the physical properties of water.arrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning