Air with a mass flow rate of 5 kg/s enters a horizontal nozzle operating atsteady state at 450 K, 350 kPa, and velocity of 3 m/s. The nozzle is wellinsulated. At the exit, pressure is 300 kPa and temperature is 390 K.Using the ideal gas model for air,the area at the inlet ism²,and the velocity at the outlet isAre potential effects negligible? Why?m/s.Is heat transfer negligible? Why?Note that you may choose to model the specific heat as constant.

Step 1: Given dataThe air is flowing in an insulated nozzle.Mass flow ratem˙=5kg/sAt…

Answered: Air with a mass flow rate of 5 kg/s…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Oil with specific gravity of 0.80 flows down at the rate of 15 m3 /s . The pressure head at the top of the drafttubee is 2m of water absolute. The velocity of oil at the exit of the draft tube is 10m/s. Assume atmospheric pressure head equal to 10m of oil absolute, determine h.
A venturi meter with a throat diameter of 100 mm is fitted in the inclined pipeline of 200 mm diameter with oil of specific gravity 0.88 flowing upwards. The venturi meter coefficient is 0.96. Two pressure gauges are fitted at tapping points, one at the throat reads the vacuum pressure of 40 cm of mercury and the other in the inlet pipe 320 mm below the throat is 20.231 N/cm2. If the loss of head in the main and throat is 0.35 times the kinetic head of the pipe, determine2.1 the volume flow rate of oil through the pipe2.2 the difference in level in the two limbs of the mercury manometer if it is connected to the tapping points and connecting pipes are filled with the same oil
A water tank with a depth of h open to the atmosphere will be discharged through an outlet pipe with a diameter of 1 cm. The density of water is 1000 kg/m3, dynamic viscosity is 0.001 kg/ms. The pipe is 20 m long and there is a pump and a full open angle valve on the pipe. If the pump head supplied by the pump is hp = 2 m, the pressure at the outlet is 150 kPa and the outlet flow rate = 0.001 m3/h, calculate the height h. (Take atmospheric pressure as 100 kPa).
An open jet of water at 20 ℃ exits a nozzle into sea-level air and strikes a stagnation tube, as shown in the sketch. If the pressure at the centerline of section (1) is 110kpa (abs), and losses are neglected, estimate: (a) the mass flow in kg/s, and (b) the height H of the fluid in the stagnation tube. (Atmospheric pressure =101.3 kpa)
Water flows through a 4-in pipe at the rate of 0.952 cfs and thence through a nozzle attached to the end of the pipe. The nozzle tip is 2 in in diameter and the coefficients of velocity and contraction for the nozzle are 0.95 and 0.93, respectively. What pressure head must be maintained at the base of the nozzle if atmospheric pressure surrounds the jet?
plzzzz help meee right nowww plzzz what will be the pressure gradient (kpa/m) at L=30 cm through the nozzle? At L=0, the liquid flows inside the nozzle has a specific gravity S=7.5, at L=0, the velocity is 2 m/s while at L=70 cm, the velocity is 6 m/s. Assume steady and inviscid flow. The velocity varies linearly with distance through the nozzle
Air in a room at T0 = 290 K and P0 = 90 kPa is to be drawn by a vacuum pump through a 3-cm-diameter, 2-m-long adiabatic tube equipped with a converging nozzle at the inlet. The flow in the nozzle section can be approximated as isentropic. The static pressure is measured to be 87 kPa at the tube inlet and 55 kPa at the tube exit. Determine the mass flow rate of air through the duct, the air velocity at the duct exit, and the average friction factor for the duct.
An orifice 150 mm diameter, having a coefficient of contraction of 0.65 discharges oil (SG=0.80) under a head of 8m. The average actual velocity of the jet is 11.65 m/s. Compute the head loss of the orifice.
Heated air at 1 atm and 35°C is to be transported in a 150-m-long circular plastic duct at a rate of 0.35 m3/s . If the head loss in the pipe is not to exceed 20 m, determine the minimum diameter of the duct.
A closed cylindrical tank 5m high contains 2.5m of water. A 100mm diameter circular orifice is situated in the vertical side of the tank, 0.5m from the bottom. What air pressure must be maintained in the air above the surface of the water in order for the discharge in the orifice to be 98 L/s?
A 75 mm-Ø orifice is on the vertical side of a closed tank. The tank rests on a flat ground and the orifice is 0.5 m above the ground. Filled with four fluids with air on the topmost portion that is under a pressure of 15 KPa, and the rest of specific gravities of 0.80, 1.0, and 1.50, respectively, the jet hits the ground at a horizontal distance of 3.75 m. If the liquids have the same thickness, and the power lost in the system is 233 watts, determine the following: (a) The initial discharge in L/s if C=0.63. (b) The thickness of each liquid in m. (c) The coefficient of contraction.
Water is pumped up from a reservoir to a smaller holding tank. If the flow rate through the pipe is 50 LPM, find the NPSH available immediately before the pump. The length of the pipe from the reservoir to the pump is 13.1 meters, and its diameter is 2.8 cm. The distance is h2=6.8 m. Assume a friction factor of 0.021. The vapor pressure of water at the current temperature is 2,399 Pa. Current atmospheric pressure is 95,194 Pa. The density of water is 991 kg/m^3

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