The fluid condition at the inlet and exit of a horizontal convergent nozzle is analysed. The nozzle is operating steadily and heat loss is assumed negligible. If the specific enthalpy of fluid and velocity of fluid at the inlet are 3,314 kJ/kg and 226 km/hr respectively. At the exit the specific enthalpy of fluid is 2,563 J/kg. Calculate the exit area (in mm2Jof the nozzle when the specific volume at the nozzle exit is 0 61 m3/kg at the inlet area of 0.23 m2 and the specific volume at the inlet is 0.3 m3/kg.

The fluid condition at the inlet and exit of a horizontal convergent nozzle is analysed. The nozzle is operating steadily and heat loss is assumed negligible. If the specific enthalpy of fluid and velocity of fluid at the inlet are 3,314 kJ/kg and 226 km/hr respectively. At the exit the specific enthalpy of fluid is 2,563 J/kg. Calculate the exit area (in mm2Jof the nozzle when the specific volume at the nozzle exit is 0 61 m3/kg at the inlet area of 0.23 m2 and the specific volume at the inlet is 0.3 m3/kg.

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

See similar textbooks

Similar questions

What is the mass flow rate of air is flowing at a velocity of 20 m/s through a tube with an area of 2 m2 and density of 1.225 kg/m3? Assuming that the airflow is incompressible, what is the new velocity of the mass airflow if the tube narrows to an area of 1 m2? 24.5 kg / s, 10 m/s 49 kg /s, 40 m/s O 12.25 kg / s, 20 m / s 50 slugs / s, 40 ft/s
(1) Given the working form of the Bernoulli equation as V2 + gz + 2 dW F dm Where F is the friction heating per unit mass dQ F = Au dm Given also that friction heating in laminar flow of Newtonian fluids in circular pipes is given as и 128 -gAz = Q Ax -AP F = Ax is change in the x-direction. A typical capillary viscometer has a large-diameter reservoir and a long, small diameter, vertical tube. The sample is placed in the reservoir and the flow rate due to gravity is measured. The tube is 0.1 m long and has a 1 mm ID. The height of the fluid in the reservoir above the inlet to the tube is 0.02 m. The fluid being tested has a density of 1050 kg / m³. The flow rate is 10-8 m³ / s. What is the viscosity of the fluid? Typical capillary viscometer
Parvinbhai
Water at 60 deg. F is pumped from a reservoir to the top of a mountain through a 6-in SCH 120 pipe at an average velocity of 12 ft/s. The pipe discharges into the atmosphere at a level 3000 ft above the level in the reservoir. The pipeline itself is 4500 ft. long. If the overall efficiency of the pump and the motor driving it is 70% and the cost of electric energy to the motor is 4 cents per kilowatt-hour, 2. what is the theoretical power consumption in hp? 373755575557337733none of the given
Air flows steadily and isentroplcally into an aircraft inlet at a rnass flow rateof 100 kgs·1• At a section where the cross-sectional area is 0.5 m2 , thetemperature and pressure are 200 K and 20 kPa, respectively. Determinethe velocity, pressure and cross-sectional area at a downstream sectionwhere the temperature is 350 K. Sketch the flow passage, and show the ·process on a T-s diagram
Tout=? V (m/s) D=0.1m air Air at (3.10x10^2) K is entering in a circular pipe at 101325 Pa as shown in Figure. The velocity of the air at the pipe entrance is (1.0000x10^O) m/s. The diameter of the pipe is 0.1m. Specific gas constant of air is 287 J/kg-K. Specific heat of air is 1000 J/kg-K. Find the outlet temperature if 2000 J of heat is added to the pipe. Answer should be in 'K' with three significant figures. Note: Your answer is assumed to be reduced to the highest power possible.
An iron bar 2.0 cm x 3.0 cm x 10.0 cm at a temperature of 95 °C is dropped into a barrel of water at 25 °C. The barrel is large enough so that the water temperature rises negligibly as the bar cools. The rate at which heat is transferred from the bar to the water is given by the expression Q (J/min) = UA (Th - Tw.) where U = 0.05 J/(min cm °C)] is a (cm) is the exposed surface area of the bar, T₁, and T are the surface temperature of the bar and the water temperature, respectively. The heat capacity of the bar is 0.46 J/(g °C). Heat conduction in iron is rapid enough for the temperature T, to be considered uniform throughout the bar. a) Write an energy balance on the bar M = (60 cm³)(7.7 g/cm³) = 462 g C₁ = 0.46 kJ/(kg-°C), T = 25°C U= 0.050 J/(min-cm² °C) |4=2[(2)(3) + (2)(10) +(3)(10)]cm² = 112 cm²
What’s the answer for this please ?
In regions far from the entrance, fluid flow through a circular pipe is one dimensional, and the velocity profile for laminar flow is given by u(r) = umax(1 − r2/R2), where R is the radius of the pipe, r is the radial distance from the center of the pipe, and umax is the maximum flow velocity, which occurs at the center. Obtain (a) a relation for the drag force applied by the fluid on a section of the pipe of length L and (b) the value of the drag force for water flow at 20°C with R = 0.08 m, L = 30 m, umax = 3 m/s, and ? =0.0010kg/m⋅s.
Carbon dioxide flows steadily through a varying cross- sectional-area duct such as a nozzle at a mass flow rate of 3 kg/s. The carbon dioxide enters the duct at a pressure of 1400 kPa and 200°C with a low velocity, and it expands in the nozzle to a pressure of 200 kPa. The duct is designed so that the flow can be approximated as isentropic. Determine the following parameters at each location along the duct that corresponds to a pressure drop of 200 kPa: (i) density; (ii) velocity: (iii) flow area; (iv) mach number. You may assume: • Carbon dioxide is an ideal gas with constant specific heats at room temperature; • Flow through the duct is steady, one-dimensional and isentropic. Use c, 0 846 kJ/kgk andk = 1.289 throughout the calculations, which are the constant-pressure specific heat and specific heat ratio values of carbon dioxide at room temperature. The gas constant of carbon dioxide is R = 0.1889 kJ/kg K.
A gas of 0.7 specific gravity is flowing in a linear reser- voir system at 150°F. The upstream and downstream pressures are 2000 and 1800 psi, respectively. The system has the following properties: L 2000 ft, k = 40 md, Calculate the gas flow rate. W=300 ft, h = 15 ft = 15%
Q2/ The Air enters Diffuser at (80 kPa, 27°C) with velocity (200 m/s) and the flow rate (2.5 kg/s), and leaves the Diffuser at (42°C). The exit area of the diffuser is (400 cm2). Determine the exit velocity. from table T1=27.C=300K h1=300.19 kJ/kg T2=42.C%3D315K h2=315.27 kJ/kg