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An orifice plate is to be used in conjunction with a differential pressure transmitter to measure the flow rate of water in a 0.15 m diameter pipe. The maximum flow rate is 50 m3 h-1, the density of water is 103 kg m-3 and the viscosity is 10-3 Pa s.
(a) Explain why an orifice plate meter is suitable for this application.
(b) Estimate the required orifice plate hole diameter if the transmitter has an input range of 0 to 1.25 x 104 Pa.
A turbine flowmeter consists of an assembly of four ferromagnetic blades rotating at an angular velocity ω rad s-1 given by:ω= 4.5 x 104 Q
where Q m3 s-1 is the volume flow rate of the fluid. The total flux N linked by the coil of the magnetic transducer is given by:
N= 3.75 + 0.88 cos 4θ milliwebers
where θ is the angle between the blade assembly and the transducer. The range of the flow-meter is 0.15 x 10-3 to 3.15 x 10-3 m3 s-1.
Calculate the amplitude and frequency of the transducer output signal at minimum and maximum flows.
Which electronics material opposes the movement of free electrons?
A sunchronous motor with negligible armature resistance runs at a load angle of 20o at the rated frequency. if the supply frequency is increased by 10%, keeping other parameter constant, the new load angle
Apply branch-current analysis to the network- Use mesh analysis to determine the power delivered by the independent 3 V source of the network in the network.
Are safety hazards associated with generation, transmission, and distribution of electric power by the electric utility industry greater than or less than safety hazards associated with the transportation industry? The chemical products industry? ..
Write an assembly program that reads a list of characters from the keyboard and writes the sorted list in ascending order to the console screen, over and over again. Any lowercase letter should be translated to the corresponding uppercase letter
A digital system is described by the following difference equation: y[n] = x[n] - 0.3 x[n-1] + 0.28 x[n-2] Find the transfer function H(z), the denominator polynomial A(z), and the numerator polynomial B(z).
Design a voltage regulator circuit that provide a voltage at a maximum of 100 mA from a 6V battery. A maximum of 1W of power should be dissipated in any one component.
A candidate material for a turbine blade application oxidizes by diffusion of metal atoms through the oxide to the metal surface, where metal and oxygen react to form the oxide. After 10 hours at 550*C, an oxide layer 8µm thick has formed.
A 3-D printer lays down a semicircular arc of positively charged plastic with a radiusR = 3.5 cm, and a linear charge density of Lambda = +1.9 uC/m. After the printer has finished the arc, the stylus moves to the center of the arc.
The water, which has a flow rate of 3 kg/s, enters as saturated liquid at 450 K and leaves as saturated vapor at the same temperature. If the overall heat transfer coefficient is 50 W/m2 · K and there are 500 tubes, each of 0.025-m diameters what ..
A copper conductor has a dia of 0.06 in and it is 1200ft long. Assume that the current total (dc) carried is 50A. Find the total resistance of the conductor. What current density exists in it What is the dc voltage between the conductor ends
calculate the convolution (x1[x]*x2[k]) for the following pairs of sequences: a-) x1[k]=u[k+3]-u[k-2] and x2[k]=u[k+5]-u[k-4] b-) x1[k]=0.5^k u[k] and x2[k]=cos Pi*k u[-k]
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