QUESTION 5 Consider the fully developed flow of light oil at 25°C (p = 910 kg/m³, μ = 0.048 Pa) through a 25 mm diameter, 45 m long laid horizontal, with a mean velocity of 0.3 m/s. Determine: 5.1 the velocity profile 5.2 the pumping power required to maintain this flow
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- Consider an air solar collector that is 1 m wide and 4 m long and has a constant spacing of 3 cm between the glass cover and the collector plate. Air flows at an average temperature of 45°C at a rate of 0.12 m3/s through the 1-m-wide edge of the collector along the 4-m-long passageway. Disregarding the entrance and roughness effects and the 90° bend, determine the pressure drop in the collector.Combination of available data for transition and turbulent flow in smooth as well as rough pipes into the following implicit relation known as the_________________. Group of answer choices a. Bernoulli’s equation b. Continuity equation c. Colebrook’s equation d. Ideal gas equationGlycerin at 40°C with ?? = 1252 kg/m3 and ?? = 0.27 kg/m·s is flowing through a 6-cm-diameter horizontal smooth pipe with an average velocity of 3.5 m/s. Determine the pressure drop per 10 m of the pipe. What is minor loss in pipe flow? How is the minor loss coefficient KL defined?
- a rectangular duct made of commercial steel is used to channel air at 1 atm and 35°C at an avergae velocity of 7m/s. The duct is 15 cm by 20 cm and 12m long. Disregarding the entrance effects, determine the fan power needed to overcome the pressure losses in this section of the duct.Glycerin, with a density of 1260 kg/m3 and an absolute viscosity of 1.5 kg/m.s, flows in a tube with an internal diameter of 5,0 cm, but it is not known whether the regime is laminar or turbulent. Knowing that the length of the hydrodynamic inlet of this flow is 0.2 m, determine the velocity of the oil and the flow regime. (the form is in the side picture)For these velocity distributions in a round pipe, indicate whether the kinetic-energy correction factor ∝ is greater than, equal to, or less than unity.
- What are the primary considerations when selecting a flowmeter to measure the flow rate of a fluid?Water enters a piping system with a diameter of 0.1016 m from a reservoir with a volumetric flow rate of 0.1893 m3/min. Determine whether the flow is laminar or turbulent if, during the winter, the dynamic viscosities of μ = 1.308×10-3 Pa·s and 0.687×10-3 Pa·s during the summer.What is the length of pipe necessary to reach a fully developed flow?The duct has a cross section 15 cm x 20 cm made of commercial steel, has air flowing steadily at 1 atm and 35C and at an average velocity of 7m/s. Solve for the fan power requirement in W disregarding the entrance effects. The length of the duct is 10 m long. Round your answer to 4 decimal places.
- Consider an air solar collector that is 1 m wide and 5 m long and has a constant spacing of 3 cm between the glass cover and the collector plate as shown in Figure below, Air flows at an average temperature of 45°C at a rate of 0.15 m/s through the 1-m-wide edge of the collector along the 5-m-long passageway. Disregarding the entrance and roughness effects and the 90° bend, determine the pressure drop in the collector.Answer completely Show how the Darcy-Weisbach equation can be derived from the Hagen-Poiseuille equation through the introduction of the Reynolds number. What is the friction factor, f, equal to for flow at a laminar condition? What is it equal to in other regimes of flow?A 1.0 m radius cylindrical industrial tank filled with viscous oil to a level at a height h from its base, must be drained through a tube with a radius of 0.2 m and length L, connected to its base. The speed profile of oil in the drain tube can be described by the equation below. Where v is the oil speed, vmax is a = maximum oil speed, r is the radius, and R is the tube radius. Considering this problem situation, do what is asked in the following items, justifying your answers. a) What is the volume, in liters, of oil removed from the tank after 10 seconds, if the maximum discharge speed does the oil reach 0.35 m/s? Data: π ≈ 22/7; 1 m3 = 1000 L. b) What flow regime does the system operate? Demonstrate. Data: specific mass of oil = 800 kg/m3, specific mass of water = 1000 kg/m3, oil viscosity = 0.056 Pa.s e viscosity of water = 0.001 Pa.s.