A 1 mm diameter tube, 10 cm in length, is used as a viscometer. Its calibration...
A 1 mm diameter tube, 10 cm in length, is used as a viscometer. Its calibration is based on fully developed laminar flow for its whole length. Develop an equation for the viscosity based on Q and p. What is the maximum flowrate for standard air and water at 20°C?
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A 1 mm diameter tube, 10 cm in length, is used as a viscometer.
Its calibration...
A 10-mm diameter tube has a maintained surface temperature of 180°C. Engine oil enters the tube...
A 10-mm diameter tube has a maintained surface temperature of 180°C. Engine oil enters the tube at 70°C at a flow rate of 1.3 kg/s and exits at 105°C. Find the length, in m, of the tube and well as the corresponding heat transfer rate, in W. Assume fully developed flow and use the Dittus-Boelter equation to calculate the average Nusselt number. q= W L= m
8.12 Dry, compressed air at Tm,i 75°C, p- 1o atm, with a mass flow rate of a 30-mm-diameter, 5-m-...
part b only please8.12 Dry, compressed air at Tm,i 75°C, p- 1o atm, with a mass flow rate of a 30-mm-diameter, 5-m-long tube whose surface is at T, 25°C. 0.001 kg/s, enters (a) Determine the thermal entry length, the mean temperature of the air at the tube outlet, the rate of heat transfer from the air to the tube wall, and the power required to flow the air through the tube. For these conditions the fully developed heat transfer coefficient is...
Poiseulle viscometer is used to mcasure the v¡scosity of a fluid. The experimental findings are summarized...
Poiseulle viscometer is used to mcasure the v¡scosity of a fluid. The experimental findings are summarized below: Density: 0.9875 g plusminus 0.0001g Radius: |.2 8 6 mm plusminus 0.002 mm Height: 27.25 cm plusminus 0.05 cm Length: 18.45 cm plusminus 0.05 cm Mass Flow: 22.15g plusminus 0 .01g Mass Time: 67.85g plusminus 0.01g Calculate the following: Average Viscosity of the fluid based on reported experimental data. Error in the Viscosity based on reported experimental data. Express the Average Viscosity in...
A stiff, 10-cm-long tube with an inner diameter of 3.5 mm is attached to a small...
A stiff, 10-cm-long tube with an inner diameter of 3.5 mm is attached to a small hole in the side of a tall beaker. The tube sticks out horizontally. The beaker is filled with 20∘C water to a level 50 cmabove the hole, and it is continually topped off to it maintain that level. What is the volume flow rate through the tube? The viscosity of water is 1.0×10−3Pa⋅s.
An oil preheater consists of a single tube of 30-mm diameter and 7-m length, with its...
An oil preheater consists of a single tube of 30-mm diameter and 7-m length, with its surface maintained at 200°C by swirling combustion gasses. The engine oil enters at 90°C and comes out at 144°C. Assume the flow is laminar and both hydraulically and thermally fully developed. Answer the following questions: (a) What flow rate must be supplied to maintain the oil outlet temperature of 144°C? (b) What is the corresponding heat transfer rate? (c) Discuss how you may refine...
(40 points) Engine oil flows at a rate of 1 kg/s through a 5-mm diameter smooth straight tube. Th...
(40 points) Engine oil flows at a rate of 1 kg/s through a 5-mm diameter smooth straight tube. The oil has an inlet temperature of 47°C and it is desired to heat the oil to a mean temperature of 87°C at the exit of the tube. The surface of the tube is maintained at 150°C. Assuming the flow is fully developed both hydrodynamically and thermally, determine the required length of the tube. Note: by calculating Reynolds number at the entrance...
Question 1 If Glycerine is pumped through a horizontal pipe, with 50 mm diameter and 65...
Question 1 If Glycerine is pumped through a horizontal pipe, with 50 mm diameter and 65 m length, at a rate Q-4.5x10 m/s. If the flow is steady and fully developed, then do the following: (1) Calculate Reynold number, Re, and show the flow is laminar [3 marks (ii) calculate the friction factor, f, [2 marks] (iii) determine the total head loss, Ah, [3 marks (iv) determine the wall shear stress, tw. [4 marks) Take the density and dynamic viscosity...
i really appreciate it if explain this throughly June 1. Consider steady, fully-developed laminar flow of...
i really appreciate it if explain this throughly
June 1. Consider steady, fully-developed laminar flow of air through a Laminar Flow Element (LFE, a type of flow-meter) with an aligned bundle of 100 small bore tubes, each of diameter D 2.00 mm, and length L 200.0 mm. The pressure drop per unit length (Ap/L) across each of the 100 tubes is a function of the tube diameter D, fuid viscosity u (in units N s/m2), and average air velocity Vave....
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. ...
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. The flowrate is 0.021 m3/s and the wall shear stress is 5.76 N/m2. Assume fully developed flow. a. Verify that the flow is turbulent b. Determine the pressure drop [N/m2 c. Estimate the viscous sublayer thickness [mm], i.e., where y+ 5 d. Compare results of part c. with typical pipe roughness (see Table 8.1 in text and comment on implication e. Using...
Question2 .5 A capillary tube with inside diameter of 6 mm connects a closed tank A...
Question2 .5 A capillary tube with inside diameter of 6 mm connects a closed tank A to an open Tank B, as shown. The liquid in A and B and Capillary CD is water having specific weight of 9780 N/m'antd viscosity of 0.0008 kg/m.s. The pressure P. 34.5 kPa gauge. Which direction will the water flow? And what is the volumetric flowrate. Neglect losses. 43m Tank B in) Uelaad Choose a File
A 10-mm diameter tube has a maintained surface temperature of 180°C. Engine oil enters the tube at 70°C at a flow rate of 1.3 kg/s and exits at 105°C. Find the length, in m, of the tube and well as the corresponding heat transfer rate, in W. Assume fully developed flow and use the Dittus-Boelter equation to calculate the average Nusselt number. q= W L= m
part b only please8.12 Dry, compressed air at Tm,i 75°C, p- 1o atm, with a mass flow rate of a 30-mm-diameter, 5-m-long tube whose surface is at T, 25°C. 0.001 kg/s, enters (a) Determine the thermal entry length, the mean temperature of the air at the tube outlet, the rate of heat transfer from the air to the tube wall, and the power required to flow the air through the tube. For these conditions the fully developed heat transfer coefficient is...
Poiseulle viscometer is used to mcasure the v¡scosity of a fluid. The experimental findings are summarized below: Density: 0.9875 g plusminus 0.0001g Radius: |.2 8 6 mm plusminus 0.002 mm Height: 27.25 cm plusminus 0.05 cm Length: 18.45 cm plusminus 0.05 cm Mass Flow: 22.15g plusminus 0 .01g Mass Time: 67.85g plusminus 0.01g Calculate the following: Average Viscosity of the fluid based on reported experimental data. Error in the Viscosity based on reported experimental data. Express the Average Viscosity in...
An oil preheater consists of a single tube of 30-mm diameter and 7-m length, with its surface maintained at 200°C by swirling combustion gasses. The engine oil enters at 90°C and comes out at 144°C. Assume the flow is laminar and both hydraulically and thermally fully developed. Answer the following questions: (a) What flow rate must be supplied to maintain the oil outlet temperature of 144°C? (b) What is the corresponding heat transfer rate? (c) Discuss how you may refine...
(40 points) Engine oil flows at a rate of 1 kg/s through a 5-mm diameter smooth straight tube. The oil has an inlet temperature of 47°C and it is desired to heat the oil to a mean temperature of 87°C at the exit of the tube. The surface of the tube is maintained at 150°C. Assuming the flow is fully developed both hydrodynamically and thermally, determine the required length of the tube. Note: by calculating Reynolds number at the entrance...
Question 1 If Glycerine is pumped through a horizontal pipe, with 50 mm diameter and 65 m length, at a rate Q-4.5x10 m/s. If the flow is steady and fully developed, then do the following: (1) Calculate Reynold number, Re, and show the flow is laminar [3 marks (ii) calculate the friction factor, f, [2 marks] (iii) determine the total head loss, Ah, [3 marks (iv) determine the wall shear stress, tw. [4 marks) Take the density and dynamic viscosity...
i really appreciate it if explain this throughly
June 1. Consider steady, fully-developed laminar flow of air through a Laminar Flow Element (LFE, a type of flow-meter) with an aligned bundle of 100 small bore tubes, each of diameter D 2.00 mm, and length L 200.0 mm. The pressure drop per unit length (Ap/L) across each of the 100 tubes is a function of the tube diameter D, fuid viscosity u (in units N s/m2), and average air velocity Vave....
H2.3 Consider water at 20°C flowing through a horizontal pipe of diameter 15 cm and length 10 m. The flowrate is 0.021 m3/s and the wall shear stress is 5.76 N/m2. Assume fully developed flow. a. Verify that the flow is turbulent b. Determine the pressure drop [N/m2 c. Estimate the viscous sublayer thickness [mm], i.e., where y+ 5 d. Compare results of part c. with typical pipe roughness (see Table 8.1 in text and comment on implication e. Using...
Question2 .5 A capillary tube with inside diameter of 6 mm connects a closed tank A to an open Tank B, as shown. The liquid in A and B and Capillary CD is water having specific weight of 9780 N/m'antd viscosity of 0.0008 kg/m.s. The pressure P. 34.5 kPa gauge. Which direction will the water flow? And what is the volumetric flowrate. Neglect losses. 43m Tank B in) Uelaad Choose a File
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