![Consider an oil of density p 800 kg/m3, viscosity u 0.01 Pa.s (10 times the viscosity of water), heat capacity of Cp 2 k]/(kg](http://img.homeworklib.com/images/3484a68b-a096-47b5-90dd-3d4974990393.png?x-oss-process=image/resize,w_560)
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Consider an oil of density p 800 kg/m3, viscosity u 0.01 Pa.s (10 times the viscosity of water), ...
2. An oil having density of 833 kg/m3 and a viscosity of 3.3 x 103 Pa.s...
2. An oil having density of 833 kg/m3 and a viscosity of 3.3 x 103 Pa.s is pumped from an open tank to a pressurized tank held at 345 k Pa gauge. The oil is pumped from an inlet at the side of the open tank through a line of commercial steel pipe having an inside diameter of 0.07792 m at the rate of 3.494 x 103 m'/s. The length of the straight pipe is 122 m and the pipe...
4. (25 pts) Water is flowing inside a thin wall, smooth pipe of diameter 0.05 m...
4. (25 pts) Water is flowing inside a thin wall, smooth pipe of diameter 0.05 m at a mass flowrate of 0.3 kg/s. The water enters the pipe at a mean temperature Tm,i= 80 °C and exits at Tm,o= 80 °C while the pipe surface temperature is maintained at Ts= 20 °C along its entire length. a. Is the flow turbulent or laminar? b. Calculate the average convection heat transfer coefficient inside the tube. c. Calculate the length of the...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate having 1m length and 1 m width. The oil has a free stream temperature To= 80 °C and the plate surface temperature is maintained at Ts = 0 °C. a. Determine whether the flow over the plate transitions to turbulent regime. b. Calculate the average friction factor and the average heat transfer coefficient for the plate by using the appropriate correlations. c. Calculate the...
The density of water is p = 1000 kg and the viscosity is u = 2...
The density of water is p = 1000 kg and the viscosity is u = 2 kg. Consider diameter of pipe is lm and the velocity of the flow is 1m/s. Compute the Reynolds number. m3 Compute the friction factor, if Reynolds number in pipe flow is 1000.
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a ...
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a total length of 60 m of pipe from a lower reservoir to a higher reservoir. The inner diameter of the pipe is 30 cm. Both reservoirs are open to the atmosphere, and the water surface of the higher reservoir is 10 m above that of the lower reservoir. The entrance from the lower reservoir to the pipe is sharp-edged, and along the...
6 Water is heated in a pipe by exchanging heat with a warmer fluid that flows outside the pipe. Inside diameter of the pipe is dn 0.045 m and outside diameter dour0.05 m. Mean velocity of the water i...
6 Water is heated in a pipe by exchanging heat with a warmer fluid that flows outside the pipe. Inside diameter of the pipe is dn 0.045 m and outside diameter dour0.05 m. Mean velocity of the water in the pipe is um-0.31 m/s and the bulk temperature is 323 K (density 988 kg m-3; viscosity 0.00055 kg m' sı. Pr 3.56, thermal conductivity k 0.64 W m1 Kt). The material of the pipe has thermal conductivity k 0.61 W...
1. An oil of density p800 kg/m3 and viscosity u 5 cP flows at 10 liters/min through a 30 m smooth...
1. An oil of density p800 kg/m3 and viscosity u 5 cP flows at 10 liters/min through a 30 m smooth circular pipe of inner diameter 2 cm. It then flows through a filtering section made up of the same pipe packed at void fraction ε-0.4 with solid spherical particles of diameter 0.5 mm to filter out any fine material. All pipe sections are straight as shown. Design constraint: the pressure drop in the packed bed section (call this AP2)...
Consider the flow of oil with a density 894 kg/m3 and viscosity 2.33 kg/ms in a...
Consider the flow of oil with a density 894 kg/m3 and viscosity 2.33 kg/ms in a 40-cm-diameter pipeline at an average velocity of 0.5 m/s. A 300-m-long section of the pipeline passes through the icy waters of a lake. Disregarding the entrance effects, the friction factor of flow.
Two-pipe concentric concentric) for cooling the engine oil with the help of a water stream in...
Two-pipe concentric concentric) for cooling the engine oil with the help of a water stream in a large diesel engine a reverse (opposite) flow heat exchanger is used. Water at a flow rate of 0.3 kg/h from inside pipe with an inside diameter of 56 mm It flows. The inner pipe is made of stainless steel with a heat transmission coefficient of 16 W/mc and is meat (wall its thickness is 3 mm. Apart from this there is another pipe...
Oil flow in a journal bearing can be treated as parallel flow between two large isothermal...
Oil flow in a journal bearing can be treated as parallel flow between two large isothermal plates with the lower plate moving at a constant velocity of V∞ =12 m/s and the other stationery. Consider such a flow with a uniform spacing of d=0.5mm between the plates. The temperatures of the upper and lower plates are T1=50 °C and T2=15°C, respectively. Use thermal conductivity k=0.145 W/m.K and dynamic viscosity µ =0.8374 kg/m.s for the oil. (a) Simplify the mass continuity,...
2. An oil having density of 833 kg/m3 and a viscosity of 3.3 x 103 Pa.s is pumped from an open tank to a pressurized tank held at 345 k Pa gauge. The oil is pumped from an inlet at the side of the open tank through a line of commercial steel pipe having an inside diameter of 0.07792 m at the rate of 3.494 x 103 m'/s. The length of the straight pipe is 122 m and the pipe...
4. (25 pts) Water is flowing inside a thin wall, smooth pipe of diameter 0.05 m at a mass flowrate of 0.3 kg/s. The water enters the pipe at a mean temperature Tm,i= 80 °C and exits at Tm,o= 80 °C while the pipe surface temperature is maintained at Ts= 20 °C along its entire length. a. Is the flow turbulent or laminar? b. Calculate the average convection heat transfer coefficient inside the tube. c. Calculate the length of the...
2. (25 pts) Engine oil flows with a velocity of 6 m/s over a flat plate having 1m length and 1 m width. The oil has a free stream temperature To= 80 °C and the plate surface temperature is maintained at Ts = 0 °C. a. Determine whether the flow over the plate transitions to turbulent regime. b. Calculate the average friction factor and the average heat transfer coefficient for the plate by using the appropriate correlations. c. Calculate the...
The density of water is p = 1000 kg and the viscosity is u = 2 kg. Consider diameter of pipe is lm and the velocity of the flow is 1m/s. Compute the Reynolds number. m3 Compute the friction factor, if Reynolds number in pipe flow is 1000.
Water, with density of 1000 kg/m3 and kinematic viscosity of 1.0 x 10- m2/s, is pumped through a total length of 60 m of pipe from a lower reservoir to a higher reservoir. The inner diameter of the pipe is 30 cm. Both reservoirs are open to the atmosphere, and the water surface of the higher reservoir is 10 m above that of the lower reservoir. The entrance from the lower reservoir to the pipe is sharp-edged, and along the...
6 Water is heated in a pipe by exchanging heat with a warmer fluid that flows outside the pipe. Inside diameter of the pipe is dn 0.045 m and outside diameter dour0.05 m. Mean velocity of the water in the pipe is um-0.31 m/s and the bulk temperature is 323 K (density 988 kg m-3; viscosity 0.00055 kg m' sı. Pr 3.56, thermal conductivity k 0.64 W m1 Kt). The material of the pipe has thermal conductivity k 0.61 W...
1. An oil of density p800 kg/m3 and viscosity u 5 cP flows at 10 liters/min through a 30 m smooth circular pipe of inner diameter 2 cm. It then flows through a filtering section made up of the same pipe packed at void fraction ε-0.4 with solid spherical particles of diameter 0.5 mm to filter out any fine material. All pipe sections are straight as shown. Design constraint: the pressure drop in the packed bed section (call this AP2)...
Two-pipe concentric concentric) for cooling the engine oil with the help of a water stream in a large diesel engine a reverse (opposite) flow heat exchanger is used. Water at a flow rate of 0.3 kg/h from inside pipe with an inside diameter of 56 mm It flows. The inner pipe is made of stainless steel with a heat transmission coefficient of 16 W/mc and is meat (wall its thickness is 3 mm. Apart from this there is another pipe...
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