The air supply to an oil-engine is measured by being taken directly from theatmosphere into a large reservoir through a sharp-edged orifice 50 mm diameter. Thepressure difference across the orifice is measured by an alcohol manometer set at a slopeof arcsin 0.1 to the horizontal. Calculate the volume flow rate of air if the manometerreading is 271 mm, the relative density of alcohol is 0.80, the coefficient of discharge forthe orifice is 0.602 and atmospheric pressure and temperature are respectively 755 mmHgand 15.8 °C. (You may assume R = 287 J · kg¯' ·K!.)

Given: To calculate the volume flow rate of air. Given: d= 50 mm manometer reading=271 mm density of…

Answered: The air supply to an oil-engine is…

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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As an engineer, you are setting up an experiment to measure the airflow rate in a duct. Choose a technique and devices for the measurement. You are required to design/draw the set-up and demonstrate the calculation for themeasurement of flow rate. Please discuss the relevant principle involved and reason for selectingthe technique.
her of partic Fluid Flow /Liquid of density 1200 kg/m² throgh a pipe of 50mm inte intemal dimeter an orifice, lo mm in dimeter is fitted in the life and differential Pressure Shwn on amercury manometer is 0-1 m. assuming the leads the manometer are filled with the flowing fluid, calculate @ the mass flow fate of fluid flowing the approximate drop in pressure. caused by the orifice in KN/m² pe of 50 mm in d differential the flowing flu ifice in kN/m the density bartle wers c the coefficient of discharge ugybe taken as 0-61 and the density of mercury is 13,550 kg/m³
Find the difference in pressure head and velocity of flow of an oil through a pipe, when the difference of mercury level in a different U-tube manometer connected to the two tappings of the pitot tube as 112 mm. Take co-efficient of the pitot tube ("L" shaped measuring instrument ) as 0.92 and sp. gr of oil = 0.8 %3D (Enter only the values in the boxes by considering units given in the bracket. Do not send the hand written answers to my mail Id) Difference in pressure head (unit in m) = Velocity of flow (unit in m/s) =
1. Solve and draw the figures İ. An oil of sp. gr. 0.9 is flowing through a venturimeter having inlet diameter 20 cm and throat diameter 10 cm. The oil-mercury differential manometer shows a reading of 20 cm. Calculate the discharge of oil through the horizontal venturimeter. Take C, = 0.98. ii. A horizontal venturimeter with inlet diameter 30 cm and throat diameter 15 cm is used to measure the flow [Ans. 59.15 litres/s] of oil of sp. gr. 0.8. The discharge of oil through venturimeter is 50 litres/s, find the reading of the oil- mercury differential manometer. Take C = 0.98. iii. A horizontal venturimeter with inlet diameter 20 cm and throat diameter 10 cm is used to measure the flow of water. The pressure at inlet is 14.715 N/cm² and vacuum pressure at the throat is 40 cm of mercury. Find the discharge of water through venturimeter. [Ans. 2.489 cm] [Ans. 162.539 lit./s]
Fluid is moving at rate of 3m/s in a chamber of a 12inch positive displacement flow meter, if the density of the fluid is 4.5kg/m³ and has a mass flow rate of 8kg/s, what is the maximum volume capacity of the chamber?
The total head of fan is 200m and has a static pressure of 201mm of water gage. What is the velocity of air flowing if density is 1.16kg/m3. ANSWER: 22.9
A crude oil of specific gravity 0.85 is flowing through a pipe of diameter 300 mm and the frictional head loss of 4.5 m of crude oil between the two ends of a pipe which are 700 m apart. Calculate the Reynold's Number, discharge of crude oil in the pipe. Take co - efficient of friction as 0.0075 and kinematic viscosity as 14 stokes. 1) The velocity of flow of oil in the pipe is (m/s) 2) The Reynold's Number for the flow is 3) Discharge of crude oil through pipe (in m3/s) is
A pipe of diameter 12 cm, is used to pump the water to the house in the Hamra hill at the height of 60 m than the ground. The discharge at the end of the pipe is 200 lit/s. The pressure gauge is fitted at the entry of the pipe in the ground is 34 N/cm?. Find the following: (i) The velocity head at the entry of pipe (in m) (ii) Pressure head at the inlet (in m) (iii) Total available energy per unit weight of the water at the pipe inlet (unit in m) (Enter only the values by referring to the units given in brackets & DO NOT write the unit & do not send the handwritten answers to my mail id...) velocity head at the entry of the pipe is = (unit in m) pressure head at inlet = (unit in m) Total available energy per unit weight of the water at inlet of the pipe
3.A horizontal venturimeter with inlet diameter 30 cm and throat diameter 15 cm is used to measure the flow of oil of sp. gr. 0.8. The discharge of oil through venturimeter is 50 litres/s, find the reading of the oil-mercury differential manometer. Take Cd = 0.98
Oil at 38 deg. Celsius is being drawn from a closed tank having a pressure of 70 kPa gage. The level of oil in the tank is 2.5m above the pump centerline. The suction line friction loss is 0.6m. The vapor pressure of the gasoline is 48 kPa absolute and its specific gravity is 0.82 Determine the NPSH in meters available. choices: a. 19.36 b. 17.23 c. 4.64
B4. An orifice meter with orifice area 1039 mm2 is inserted in a pipe of area 2078 mm2 .The pressure difference measured by a mercury oil differential manometer on the two sides of the orifice meter gives a reading of 60 cm of mercury. Find the rate of flow of oil of sp. gr. 0.9 when the co-efficient of discharge of the orifice meter = 0.52. (Enter only the values by referring the unit given. Also upload the hand written answers in the link provided) Head of water (in m) The discharge of water through pipe (in Litres/sec)
y aer. A Pitot tube is used to measure the air flow rate in a eircular duct 8.5 m I.D. The "riowing air temperature is 65.5°C. The Pitot tube is placed at the center of the duct and the reading R on the manometer is 1.2 cm of water. A static pressure measurement obtained at the Pitot tube position is 2.0 cm of water above atmospheric. Take Cp 0.98,9ter ase press u = 2.03 x 10 Pa.s, if U- Ux ( 1-0.17). Calculate The velocity at the center and the average velocity. The volumetric flow rate of the flowing air in the duct

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