Q2. Forced convective heat transfer coefficient depends on type of flow (True/False)
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Q2. Forced convective heat transfer coefficient depends on type of flow (True/False)
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- 1) Which of the following statement is NOT correct about piping network? a) In parallel pipes, the flow rate is proportional to its diameter and inversely proportional to its length and friction factor. b) When analyzing the piping network, conservation of mass throughout the system must be satisfied. c) In piping systems with pumps, the Bernoulli equation should be corrected by introducing a kinetic energy correction factor. d) The algebraic sum of head losses for all loops equal to zero. 2) The EGL is always a distance V2/2g above the HGL. True or Falsechoose the correct answer Q1- The pipe diameter is: * a) Directly proportional to fluid velocity b) Inversely proportional to mass flow rate c) Directly proportional to mass flow rate d) None of all aboveDefine average velocity and relative velocity.
- The present pumping rate of crude oil through the Alaska Pipeline with an ID of 39 in is 550,000 barrels per day (1 barrel is 42 U. S. gallons). For crude oil at 60ºC, take ρ = 860 kg/m3 and μ ≈ 0.004 kg/m·s. What would be the maximum rate if the flow were constrained to be laminar? Take π = 22/7. Answer is asking for maximum flow rate for barrels per day9At 1 atm and 20 oC, air flows in a 7 cm diameter tube. What should be the maximum air velocity to keep the flow laminar? (kinematic viscosity 1.516E-5 m^2/s)A certain fluid has a specific gravity of 1.25 flows through a 150 mm diameter pipe with mean velocity of 1.2 m/s. a.) Determine the volume flow rate? b.) Determine the mass flow rate? c.) Determine the weight flow rate?
- THEORY AND PRIMCIPLE OF PIPE INSULATIONThe entry length in pipe flow will be higher for? A. High velocity of flow B. Small diameters C. Highly viscous fluids D. Low viscosity fluidWhich is not true about the velocity profile in a pipeline flow. a. Velocity will be zero at the walls b. Velocity will be minimum at centre Velocity will decrease symmetrically towards walls Velocity will be maximum at centre
- 1. What is the likelihood that a flow with an average velocity of 0.15 f t/s in a 6 in. water pipe is laminar? Find the speed at which the flow will always be laminar. 2. If the critical Reynolds number for a river is 2000 based on average velocity and depth, what is the maximum speed for laminar flow in a river 10 f t deep? 2 f t deep? Do you expect any river flow to be laminar?.How does velocity affect the types of fluid flow?In membrane processes the _____ ____ mode of operation has the feed water flowing tangentially to the membrane, and the resulting shear force of the fluid velocity helps minimize accumulation of particulate matter on the surface of the membrane. Enter two words, lower case, separated by one space.