A designer needs a quarter-turn valve to flow approximately 10 GP an inlet pressure of 3000 psig outlet pressure of 2900 psig. TI
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- A "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?For the fow rate of 20 liters per minute using the data sheet of the valve. Find the pressure drop. Hint: using orifice formala. Energized 32 cSt/150 sus ol at 40°C A 6.100 A 5.500 4.160 2.40 1420 3.8 15.1 FLOW Ipm o pm PRESSURE DROP ber paWhen using a double acting pressure intensifier for continuous pressure increase, we are looking to have pressure intensified brand operate at 5L/min at 30 MPA. If the main pump can supply 10L/min at 10 MPA, what is the diameter ratio needed between actuator and boosting piston?
- How to work out a Bernoulli pipe diameter change to increase or decrease flow into a Ram pump drive pipe. The ram pump selected is a: RAM PO400 with a 80mm drive pipe, will deliver 19200 liters per day to 125m The elevation of ram pump is 334m The elevation of drive inlet pipe is 359m The height being pumped to is 111mWhat is the engine speed (in rpm) required for good volumetric efficiency for an engine with two inlet and two exhaust valves, bore of 0.086 m, stroke of 90 mm, inlet air temperature of 330 K, exhaust temperature of 900 K and inlet valve diameter 30 mm (each). Assume specific heat ratio =1.37, R = 287 J/kg.K and an average inlet flow coefficient 0.4. Select one: a. 7013 O b. 6350 O c. 7847 O d. 4620 e. 9202A Gould Brand, German made Single Reciprocating Compressor has a speed of 1200 rpm. The diameter of the cylinder bore is equal to 120mm and a displacement length of stroke equal to 150mm, at suction pressure of 120KPa with 20 degree centigrade to 215 degree centigrade temperatures. Calculate the following: a. Mass Flow rate, kg/sec b. Pressure Ratio c. Indicated Power d. Shaft Power if Mech'l Eff.=80%
- 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 eA simple jet carburetor is required to supply 5 kg of ai and 0.5 kg of fuel per minute. The fuel specific gravity is 0.75. Thrnea'r is initially at 1 bar and 300 K. Calculate the throat diameter or ir choke for a flc ty ocity of 100 m/s. Velocite oefficient is 0.8. If the pressure drop acit 1 1he fuel metering orific orifice diameter assuming. Caf .60 and= 1.4. 80 of that of the choke. calculate8- Chocking flow condition in convergent nozzle accurse when the back pressure be greater than critical pressure. true false
- A Forced - Draft (FDF) with open suction has rated capacity of 4,000 CFM at 1,800 rpm. The pressure developed at the discharged duct is 10 mm H2O. The discharge duct is circular with inside diameter of 600 mm. Calculate the following:a) what is the velocity of air at the discharge in mm H2O?b) what is the theoretical fan power required in kW?Consider standard density of water and air are 1000 kg/m3 and 1.20 kg/mb) A single stage, single acting reciprocating compressor has a bore of 250 mm and a stroke of 550 mm. It runs at a speed of 300 rev/min. The clearance is 4% of swept volume, and the polytropic index is 1.39 throughout. The intake pressure is 97 kPa at 25°C, and the final compression pressure is 600 kPa. If the free air conditions are 101 kPa and 20°C, determine the free air delivered in m/s.a) Calculate the interstage pressure ratio per stage for a two-stage compressor if the overall pressure ratio is 10. b) What speed should a single acting, reciprocating compressor run at to produce 50 m³/h of air? The data for the compressor is: Piston diameter = 100 mm, Stroke length = 110 mm,