What is the minimum duct size needed to move 200 cu ft per minute andmaintain duct velocity below 800 feet per minute?
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What is the minimum duct size needed to move 200 cu ft per minute and
maintain duct velocity below 800 feet per minute?
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- Industrial pipes Do the guides allow movement of a pipe only in two directions (in a plane)?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?FLOW THROUGH PIPELINE PROBLEM Process water is pumped from the main storage tank (A) to process tanks (B) and (C). The pipeline from main storage tank (A) to the centrifugal pump inlet is 3-inch Schedule 40 commercial steel pipe, with an equivalent length of 61 meters. The line from the centrifugal pump discharge to the tee (entry into leg) where the pipeline branches is also 3-inch Schedule 40 pipe, with an equivalent length of 30.5 meters. The pipeline from the tee to process tank (B) is 1.5-inch Schedule 40 pipe, with an equivalent length of 183 meters. The pipeline from the tee to process tank (C) is 2-inch Schedule 40 commercial steel pipe, with an equivalent length of 183 meters. The equivalent lengths as given do not include four (4) gate valves, one (1) between storage tank (A) and the centrifugal pump, one (1) between the centrifugal pump and the tee, and one (1) each at process tanks (B) and (C); and two (2) globe valves (bevel seat), globe valve “X” in line from the tee to…
- Water at 5°C is to be pumped from the river to the bottom of a water tower. The pump is 5 m above the river (dimension "a" on the diagram below) and is supplied by a 6.00 inch schedule 40 pipe. The tank is 19.5 m above the pump (dimension "b" on the diagram below) and is supplied by a 4 inch schedule 40 pipe. The water level in the tank is 4.3 m above the inlet (dimension "c" on the diagram below). The pump delivers 0.021 m/s. Losses are estimated to be 1.2 m between the river and the pump, and 4.2 m between the pump and the tank. Discharge line Suction line Pump River a) Calculate the losses in the suction line in kPa, based on the given head loss in m. kPa b) Calculate velocity in the suction line in m/s. m/s c) What is the pressure at the inlet to the pump in kPa? kPaFind 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 Venturi tube narrows down from 4 inches diameter to 2 inches. What is the rate of flow of water if the pressure at the throat is 2 lbs/sq.in less than at the larger section? O 0.388 cu.ft/sec O 0.985 cu.ft/sec O 0.585 cu.ft/sec O 0.215 cu.ft/sec O 0.645 cu.ft/sec
- With 280 K static temperature, 103 kPa static pressure and 167 m/sec speed, air heat is added to the duct. enters. Static pressure at the duct outlet is given as 65 kPa. How much heat has been added to the duct? How much more heat can be added to this channel without changing the conditions at the channel entrance?What is the hydraulic radius of a rectangular air duct 300mm by 500mm?A perfect venture with throat diameter of 1.8 inches is placed horizontally in a pipe with a 5 in inside diameter. 80 lb of water flow through the pipe each second. What is the difference between the pipe and venture throat static pressure?
- QUESTION 4 The figure below shows a fluid flow system that is designed to pump water at 20 °C from a lower vented reservoir to an elevated vented tank. Note that the drawing is not to scale as the dimensions of the reservoirs are very large relative to those of the piping system. The suction line entering the pump is specified as 20 m of 3½" schedule 40 commercial steel pipe; the discharge line from the pump is 180 m of 2%" schedule 40 commercial steel pipe. 15 m 3 m 31/2-in Schedule 40 steel pipe Fully open gate valve 21/2-in Schedule 40 steel pipe Flanged regular 90⁰ elbows Pump Flow Swing-type check valve valve Butterfly (K butterfly = 0.8) a. Starting from the Bernoulli equation (in 'head' form) for the situation where the liquid levels in the two reservoirs are reference points 1 and 2, derive the correct equation for pump head Hpump (m) in terms of volumetric flow rate Q (m³/s) and other process variables (e.g. z, f, L, D, K). b. Using Excel (or another suitable program), create…The rest of the questions are thus: 4) Calculate the air temperature and pressure in the pump at the end of the following expansion stroke, just before the piston uncovers the orifice (orifice dimensions are neglectable).5) Calculate the mass and temperature of air in the pump (i.e. the cylinder andconnecting pipe) after the orifice has been exposed and the pressure has risen to atmospheric pressure (bottle valve is now closed).7) Calculate the piston position and the air temperature in the pump during the next compression stroke at the time when the valve to the gas bottle opens again.8) Calculate the pressure in the bottle when no more air can be transferred by the pump. (This will be after an undetermined number of pumping cycles).For the single pump-pipe system below, what will be the changes for the operating point if we increase the pipe size but decrease the shaft speed of the pump? EB H₂ O The operating point will remain the same. O The operating point will occur either at a higher discharge or at a lower discharge, depending on the specific influence of each change. O The operating point will occur at a higher discharge. O The operating point will occur at a lower discharge.