Q3:Size the duct system shown in thefigure. The air velocity at the inletis 8m/s. The length of each ductsegment is 4m. If the pressuredrop in each diffuser and elbow(or Tee branch) is 20Pa and 25 Parespectively, calculatepressure head required for theAHU. (Note: CFM=ft³/min.)theAHU600CFM800CFM1000CFM600CFM800CFM1000CFM600CFM800CFM1000CFM

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Answered: Q3: Size the duct system shown in the…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Using velocity reduction method, design the duct system. Take the velocity of air in main duct as 8m/sec, air density 1.2kg/m. Coranch = 0.4 Coutlet = 1 2. Using equal pressure drop method, design the duct system. Take Ap = 1pa/m, air density 1.2kg \m. Cranch = 0.4 Coutlet = 1
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Hello i have an example with an answer , please show the solution since only the answer was shown in this example. And i need its solution to review properly. Thank you 1.Question : A centrifugal pump has impeller with dimensions r1 = 71 mm, r2 = 154 mm, b1 = 52 mm, b2 = 26 mm, β1 = β2 = 30º. For discharge of 74 L/s and shockless entry to vanes, compute the speed in rpm.Answer : 743.12 rpm
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Q-- Consider the following data relating toperformance of a centrifugal pump:speed 1200 rpm, flow rate 30 L/s, head 20 m, and power 5 kW. If the speed of the pump is increased to 1500 rpm, assuming the efficiency isunaltered, Find the new flow rate and head.
18. A centrifugal pump has, to work against a head of 25 metres at a speed of 850 rpm.. The flow component of the velocity at outlet is 2 5 metres/second. The outlet vane angle is 40°." If the discharge of the pump is 0-25 cumec find (i) The diameter of the impeller and (ii) The width of the impeller at outlet. Neglect losses. (0:387 m; 0*082 m)
. What horsepower is supplied to air moving at 7m/min through a 70cmx90cm duct under a pressure of8cm of H2O?
Q1/ A) An impulse wheel is to be designed to develop at the nozzle pressure is 40 kg/cm and the deflect the jet impinging on them 150°. The center line of the bucket is on a circle of 250 cm find:- 1. The speed of the Pelton wheel (rpm). 2. Efficiency and hours power the theoretical, at the nozzle flow rate 3 m'/sec. 3. Specific speed.
Find the loss in total pressure for each run in the simple duct system of Fig. 1, using the equal-friction method and in English unit. The total pressure available for the duct system is 0.12 in. wg (30 Pa), and the loss in total pressure for each diffuser at the specified flow rate is 0.02 in. wg (5 Pa). Duct fittings are listed in Table 1. Assume the duct dimeter in run 1 is 10 in. and the rest are 8 in. Does the duct system require any adjustment? 150 cfm e. a 15 ft Plenum е 15 ft 5 ft 5 ft a 3. 20 ft 4 10 ft 200 cfm e 10 ft 150 cfm b Duct Fittings for Figure 1 Fittings Type Abrupt Entrance 90 deg Elbow, Pleated Round to Rectangular boot, Straight 45 deg. Converging Wye 45 deg Elbow, Pleated a d e
Centrifugal pump has differential pressure 15 bar and use to transport oil between two separators. If the pressure at first separator is 4 bar calculate the pressure at second separator and NPSH. Where: Suction and discharge pipe diameters = 10 inch, Suction pipe length = 16 m, ld Oil level at first separator 3 m2d Oil density=880 kg/m³ P Oil flow rate=0.092 m³/sec e Pipe roughness= 0.045 mm Discharge pipe length = 25 m O Oil level at second separator = 5.5 m2d Oil viscosity = 9.5 x 10³ Pa.s Oil vapor pressure 22.5 kPa d кра 4.5x10²

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