5 t/hr of soybean oil is pumped through a smooth stainless steel pipe 5 cm in...

5 t/hr of soybean oil is pumped through a smooth stainless steel pipe 5 cm in diameter at 30C.

A) What will the coefficient of friction be?

B) If by heating the oil its viscosity can be reduced by a factor of 5 and its density by 5%, how will the fraction be affected?

C) Suppose the pipe is not smooth as originally thought. how would the assumed fraction be affected?

D) If the pumping distance were extended by 50% and the pipe's diameter changed to 7 cm, how will the pressure drop (as a result of friction) be affected?

Solutions

Expert Solution

samet mamat answered 1 year ago

Next > < Previous

Related Solutions

Soybean oil at 30 degress Celsius is to be pumped from an open vat through 60...

Soybean oil at 30 degress Celsius is to be pumped from an open vat through 60 m of standard galvanized iron pipe (internal diameter of 9 cm) into the top of a stroage tank that is 17 m above the surface of the vat. The pipeline contains 3 type B elbows and a gate valve. It is desired to pump the oil at 13.7 m^3/hr. 1) How much work head must be added by a pump at this pumping rate?...

Water is being pumped through a horizontal pipe that is 36.0 m long and 13.5 cm...

Water is being pumped through a horizontal pipe that is 36.0 m long and 13.5 cm in diameter. A pump maintains a gauge pressure of 742 Pa at a large open tank at one end of the pipe. The other end of the pipe is open to the air. If this pipe is replaced by a second one of length 9 m and diameter 5.0 cm, what gauge pressure must the pump provide to give the same volume flow rate...

Liquid bismuth flows at a rate of 4.5 kg/s through a 5.0-cm-diameter stainless-steel tube. The bismuth...

Liquid bismuth flows at a rate of 4.5 kg/s through a 5.0-cm-diameter stainless-steel tube. The bismuth enters at 415oC and is heated to 440oC as it passes through the tube. If a constant heat flux is maintained along the tube and the tube wall is at a temperature 20oC higher than the bismuth bulk temperature, calculate the length of tube required to effect the heat transfer. For liquid bismuth: ? = 1.34 ?10-3 kg/m· s Cp = 0.149 kJ/kg.oC k...

Air flows into a commercial steel pipe of 5 cm ID at 70 m/s. The inlet...

Air flows into a commercial steel pipe of 5 cm ID at 70 m/s. The inlet pressure and temperature of the air are 1 MPa and 100?C, respectively. a) Determine the Mach number at a distance 60 m down the pipe if the flow is adiabatic. b) Calculate the temperature at the same point. How would you comment on the assumption of constant Re, hence constant f, along the pipe by considering the temperature variation?

6. Water steadily enters an extremely thin 100 m stainless steel pipe with a diameter of...

6. Water steadily enters an extremely thin 100 m stainless steel pipe with a diameter of 10 cm at a mass flow rate of 31.4 kg/s at 80 °C at 100 kPa. The convection heat transfer coefficient between the ambient air (20 °C) and water pipe is ℎ = 120 ?/(?^2)?. You can ignore the heat loss by radiation and assume the temperature of the water and pipe surface are almost same but the temperature Difference is very small but...

A 8.0-cm-diameter horizontal pipe gradually narrows to 5.0 cm . When water flows through this pipe...

A 8.0-cm-diameter horizontal pipe gradually narrows to 5.0 cm . When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 31.0 kPa and 25.0 kPa , respectively. What is the volume rate of flow?

9. A stainless steel tube having an outside diameter of 0.6 cm and a wall thickness...

9. A stainless steel tube having an outside diameter of 0.6 cm and a wall thickness of 0.05 cm is to be insulated with a material having a thermal conductivity of 0.065 W/mK. If the inner and outer convective heat transfer coefficients are 5.9 W/m2K. what will be the heat loss per meter of length for insulation thicknesses of 0, 0.25, 0.5, 0.75, 1.00, and 1.25 cm if the inside temperature is 95 C and the outside temperature is 10...

Water flows at 112°C through a steel pipe (k=90 W/m °C) which has a 6 cm...

Water flows at 112°C through a steel pipe (k=90 W/m °C) which has a 6 cm inside diameter and 8cm outside diameter. Such that, hi =346 W/m2 °C and ho =6.0 W/m2 °C. Surrounding air temperature is 20°C. To reduce heat loss to the surroundings the pipe is covered with an insulation insulation having the thickness of 4.0 mm and k=0,5W/m°C . Calculate; a. The heat loss by convection per unit length from the bare pipe (before insulation). b....

"Two reservoirs 1200 m apart are connected by a 50-cm smooth concrete pipe. If the two...

"Two reservoirs 1200 m apart are connected by a 50-cm smooth concrete pipe. If the two reservoirs have an elevation difference of 5 m, determine the discharge (20 degree C) in the pipe by the Darcy Weisbach equation, (b) the Hazen- Williams equation, (c) the Manning equation. Assume minor losses are negligible and verify your results with computer software."

A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the...

A 1.0-cm-diameter pipe widens to 2.0 cm, then narrows to 0.5 cm. Liquid flows through the first segment at a speed of 9.0 m/s . What is the speed in the second segment? What is the speed in the third segment? What is the volume flow rate through the pipe? for the love of god please give me the right answer. everyone has given me the wrong answers so far and i'm pissed off.

Subjects