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Domestic waste releases 9 GJ/tonne when burned in electricity from waste plant having a conversion efficiency of 25 per cent. A community of 15 000 households produces 12 000 tonnes of combustible waste annually.
(a) What is the annual electricity output? (Note 1 kW h = 3600 kJ)
(b) For plant load factor of 80 per cent, what generator rating is appropriate?
(c) What fraction of the total community demand can be supplied if the annual demand per household is 4000 kW h?
The electric field in a certain region of space is given by the vector field E(r ) = E(x, y, z) = (x ? z)xˆ + (z ? y) yˆ V/m Find any two points P( x1 , y 1, z 1) and Q( x2 , y2 , z2 ) such that the electric field at P is perpendicular to the elec..
Case study of incident where arc flash is an hazard cause problems, damage in NON oil gas industry what is learnt from the incident,
Problem 1: What is a fluid? Give examples of both fluids and non-fluids. How do they differ?
A pn-junction is uniformly doped and has dopant concentration of NA = 4 x10^16 cm-3 in the p-region at 300K. AT zero bias, 20% of the total space charge region (W) is extended in the p-region. Calculate Vbi, ND, W, xn and xp.
Determine the voltage
A transformer is required to produce 15V (rms) and 1A from a 30V (rms) line voltage. The primary used 100 turms of wire. How many turns are required for the secondary and what is the primary current.
The maximum voltage that James can apply to this capacitor is limited by Vmax = Kd, where K is the breakdown strengh of the dielectric. deriven an expression for the maximum energy that can be stored in this capacitor in terms of K and the volume ..
A variable-frequency voltage source of value 12cos(wt) drives a network with a resistor of value 12 ohms, an inductor of value 50mH, and a capacitor of value 5uF, all in series, in that order.
a. Convert all the per unit values to a common kVA of 100 and transmission side voltage base of 2500V b. To maintain one per unit voltage at rated load, find the per unit generator voltage needed.
1. Code programs using MATLAB 2. Apply MATLAB and Simulink to aid the analysis of engineering problems An LRC circuit is shown in Fig.1.
An op amp having a single pole roll-off at 100 Hz and a low frequency gain of 105 is operated in a feedback loop with ß= .01. what is the factor by which feedback shifts the pole. to what frequency. If ß is changed to a value that results in a clo..
Given a high or low pass RC or RL filter, indentify circuit characteristics such as AV, AVdB, AP, APdB, ZT, XT, and delete text at FC.
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