Calculate the minimum velocity of flow in ft/s of water at 160°F in a 2-in steel tube with a wall thickness of 0.065 in for which the flow is turbulent.
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Calculate the minimum velocity of flow in ft/s of water at 160°F in a 2-in steel tube with a wall thickness of 0.065 in for which the flow is turbulent.
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- 3. Vertical turbines are to be used for flocculation in a water treatment plant with a design flow rate of 189,270 m³/day. Flocculation is to be designed with two trains and five compartments per train. The total detention time in this process is to be 25 minutes, and the average temperature of the water flowing into the plant is 10°C. The velocity gradient in the first compartment is to be 70 s¹. Make the following design decisions for the first compartment: a) Determine the dimensions of the compartment. b) Determine the diameter of the impeller. c) Determine the water power required. d) Determine the maximum rotational speed. e) Estimate the pumping capacity of the impeller and circulation time in the tank.Determine the average velocity in ft/s for water flow in a 20 mm diameter copper tube (21.4 mm outside diameter and 19.9 mm inside diameter) carrying water at a volumetric flow rate of 40 L/min.Problem 1. A fluid is flowing in a 20 cm diameter pipeline with a velocity of 5.50 m/sec. The pressure at the center of the pipe is 35 kPa, and the elevation of the pipe above an assume datum is 5 m. Compute the total energy flowing fluid if it is (a.) water, (b.) molasses (s = 1.20) and (c.) gas (w = 4.29 N/). ANSWERS MUST BE IN 3 DECIMAL PLACES ALL THE WAY.
- Compute the following: PROBLEM 12.8 Air is flowing through a 21.79-cm diameter pipe with a velocity of 6.23 m/s. If the temperature of the air is 21.27°C and pressure is 105kPa. Compute for the flow rate of air in the pipe in kg/s.Consider a pipe on a horizontal plane: based on Bernoulli's equation A. none of the above B. the inlet velocity will be less than the outlet velocity C. the inlet velocity will be greater than the outlet velocity D. the elevation of the inlet will be greater than that of the outletThe Figure shown below is a parallel pipeline system with two branches used to supply lubricating water to the bearings. The main line and two branches use the same size of pipes. The pressures at section 1 and section 2 are and , respectively. The resistance coefficients for two bearings are and . The cross section areas of two branch pipes are . The energy loss caused by friction can be ignored. The energy loss caused by one bend is . (7) Calculate the velocity in branch a_________m/s
- An open test tube at 293 K is Water at 20°C is being pumped from a tank to an elevated tank at the rate of 5.0 x 10-3 m3/s. All of the piping in the image below is 4-in. schedule 40 pipe. The pump has an efficiency of 65%. Calculate the kW power needed for the pump.1. A given pipe first carries water and then carries air at 15°C and atmospheric pressure. What is the ratio of the mass discharge rates and the volume discharge rates, if the friction factors were the same for these two flows? 2. Two horizontal pipes of the same length and relative roughness carry air and water, respectively, at 60°F. The velocities are such that the Reynolds numbers and pressure drops for each pipe are the same. Find the ratio of the average air velocity to water velocity.Water at room temperature with a mass flow rate of 2 kg / s flows through a system of 2 pipes connected in series. The first piece of pipe is 10 m long 1 in. Sch. 40, the second piece of pipe is 15 m long 2 in. Sch 40 is made of commercial steel tubing. Piping system is horizontal. Calculate the pressure loss across both pipes and the pump power required to flow water through this piping system, ignoring the energy loss of the fitting. CREATE THE KNOWN AND UNKNOWN BY DRAWING THE SHAPE OF THE ORGANIZATION AND WRITE YOUR ASSUMPTIONS IN DETAIL
- Q2l Calculate size of each part for the air conditioning ducts system shown in Figure(1) by using equilibrium pressure drop method. The velocity of air in main duct 7 m/s. Tabulate the results (velocity value, rate of pressure drop, circular diameter, and air flow rate) for each part, then convert circular ducts to equivalent rectangle ducts at height 300 mm for all system. 0.5 m³/s E 5m A D 0.5m³/s 3m B Figure (1) 3m 3m 5m C 1 m³/sThe flow rate of water at 20°C in the center of a pipe with an inside diameter of 102.3mm is measured with a pitot tube. At 18°c, the reading from the manometer is 80mm of carbon tetrachloride. The coefficient for the pitot tube is 0.95. A.) Calculate the velocity at the center and the average velocity B.) Calculate the volumetric flowrate of the waterThe inlet pressure to a piping system is 440 kPa. The inlet pipe diameter is 0.6 m. What is the velocity of the flow of water and discharge at the inlet?