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]11.13 A device designed to allow cleaning of walls and windows on the second floor of homes is similar to the system shown in Fig. 11.20. Determine the velocity of flow from the nozzle if the pressure at the bottom is (a)
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Applied Fluid Mechanics (7th Edition)
- Diagram (1) H(m) 40 36 32 28 24 20 16 12 4 200 400 600 800 1000 1200 1400 1600 1800 V(lit/min)arrow_forwardFind the air flow rate in the duct. Data: Air pressure: 17 psia air temperature at the inlet: 65 F air temperature at the exit: 125 F duct wall temperature 230 F duct cross section is 1.5 ft by 1 ft length of the heated segment is: 8 ftarrow_forwardChoose the correct pne from the options only.arrow_forward
- Saturated water at 310K is being pumped from a tank to an elevated tank at the rate of 7L/s. All of the piping is in 5-in. schedule 40 steel pipe. If the 2 fittings used is 90° ell standard long radius, The pump has an efficiency of 80%. Calculate the kW power needed for the pump. * 125 m 12 m -5 1 50 m 5-in. pipe schedule pump Your answerarrow_forwardCompute the resulting pressure in kPa after a "real" diffuser in which the energy loss due to sudden enlargement is considered for the flow of water at 25°C from a 36 mm OD x 2.0 mm wall copper tube to an 85 mm OD x 2.5 mm wall copper tube, the pipes are the same elevation. The volume flow rate is 150 L/min and the pressure before the enlargement is 500.062 kPa. NB: OD = Outside Diameter, Wall refers to the pipe’s thickness (t) Hints: Obtain the specific weight of water for the given temperature from Appendix A (Table A.1). Obtain the resistance coefficient (K) for sudden enlargement from Table 10.3B in chapter 10. Instructions: Only express the areas in scientific notation to three decimal places but round off to three decimal places in normal number format where necessary throughout your calculations leading to the final answer and including the final answer for all other computations excluding the area.arrow_forwardIt is required to pump cooling water from storage pond to a condenser in a process plant situated 10 m above the level of the pond. 200 m of 74.2 mm i.d. pipe is available and the pump has the characteristics given below. The head loss in the condenser is equivalent to 16 velocity heads based on the flow in the 74.2 mm pipe. If the friction factor Φ = 0.003, estimate the rate of flow and the power to be supplied to the pump assuming η = 0.5 Q (m3 /s) 0.0028 0.0039 0.005 0.0056 0.0059 Δh (m) 23.2 21.3 18.9 15.2 11.0arrow_forward
- # 8-34. A 12 in diameter galvanized steel (smooth) straight duct section conveys air at 1000 ft /min. It is 100 ft long. a. Determine the pressure loss, in inches of w.c. b. Determine the average velocity of air flowing through the duct. c. Identify a cost-effective rectangular duct section with an equivalent pressure loss that has a side depth of 8 in.arrow_forwardA piping system is to be installed at place where the pump will transfer the fluid from tank A to tank B. There are two suggested piping designs available to carry the fluid efficiently. Compute and determine which of the available piping arrangement will experience the less pumping powerwith given flow conditions. Discuss the results. Flow conditions are same for both type of designs and given as: Pipe material: stainless steel Volume flow rate: 40 L/sec Assume the working fluid is water at standard atmosphere temperature and both tanks areopen to atmosphere. Pipe inlet is sharp-edged and bends are sharped without vanes. Elevations are as ?? = ?? ? and ?? = ?? ?arrow_forwardA "spa tub" is to be designed to replace bath tubs in reno- vations. There are to be 6 outlet nozzles, each with a di- ameter of 12 mm, and each should have an outlet velocity of 12 m/s. What is the required flow rate from the single pump that supplies all of these nozzles? If there is one suction line leading to the pump, what is the minimum diameter to limit the velocity at the inlet of the pump to 2.5 m/s?arrow_forward
- Water at 40°F is flowing downward through the fabri- cated reducer shown in Fig. 7.11. At point A the velocity is 10 ft/s and the pressure is 60 psig. The energy loss be tween points A and B is 25 lb-ft/lb. Calculate the pressure at point B.arrow_forwardWater flows through a reducer in a pipe as shown. The pressure at A is equal to 345 kPa and the pressure at B is equal to 325 kPa. What is the flow rate of the water in the pipeline? Flow 150 mm inside diam. 60 mm inside diam.arrow_forwardWater flows thru the entrance section of the pipe whose pressure is 280 kPa and is 4.5 m above the datum. At the exit section of the pipe, the pressure is 200 kPa and is 9.5 m above the datum. Compute the total head loss if the velocity at the entrance and the exit section is 1.2 m/s. a. 3.15 m b. 2.34 m c. 1.89 m d. 2.61 marrow_forward
- Principles of Heat Transfer (Activate Learning wi...Mechanical EngineeringISBN:9781305387102Author:Kreith, Frank; Manglik, Raj M.Publisher:Cengage Learning