Calculate the total electrical energy

Assignment Help Electrical Engineering
Reference no: EM131181499

Question

A hydro-electric power station has a reservoir of area 2.4 square kilometres and capacity 5 x 106 m3. The effective head of water is 100 metres. The penstock, turbine and generation efficiencies are respectively 95%,90% and 85%.

(i) Calculate the total electrical energy that can be generated from the power station.

(ii) If a load of 15,000 kW has been supplied for 3 hours, find the fall in reservoir level.

Reference no: EM131181499

Questions Cloud

Draw a set of cost curves including avc : Draw a set of cost curves including AVC, ATC, and MC curves. Graphically show what will happen to these curves if technology improves, making it possible for the firm to use less labor.
Optimal order quantity given quantity discount information : The Bellevue University bookstore purchases sweatshirts with the school name and logo from a vendor. The vendor sells the sweatshirts to the store for $38 per shirt. What is the bookstore;s optimal order quantity given this quantity discount informat..
How do you obtain most of your food : How do you obtain most of your food? Does it come from a supermarket, or do you get some from a farmers' market or grow your own? Are you surprised to learn that less than 12 cents of a dollar spent on food goes to the primary sector, where the fo..
What amount of money invested : What amount of money invested today at 10% interest can provide the following scholarship: P300,000 at the end of each year for 5 years; P500,000 for the next 5 years and P 800,000 thereafter?
Calculate the total electrical energy : Calculate the total electrical energy that can be generated from the power station.- If a load of 15,000 kW has been supplied for 3 hours, find the fall in reservoir level.
Manufacture motorized recreational equipment : GMFC is planning to expand its U.S. operations by building a new plant. They will employ about 500 production workers. This new plant will manufacture motorized recreational equipment including all-terrain vehicles, personal watercraft, and snowmobil..
Consumer price index history table : Use the Bureau of Labor Statistics "Consumer Price Index History Table"  (http://www.bls.gov/cpi/tables.htm) to answer the following questions.  Note:  There are many tables that the BLS occasionally rearranges.  You need the annual percent change..
Using point-of-sale system for some time to track inventory : Alliance Supermarkets has been using a point-of-sale (POS) system for some time to track its inventory. The system uses a laser scanner to read the universal product code (UPC) on each item at teh checkout container. Describe any information that may..
What impact would this have on the economy : Do you think that this is true? If automobile use were to fall in half over the next 15 years, what impact would this have on the economy?

Reviews

Write a Review

Electrical Engineering Questions & Answers

  Find the line-to-line voltage of the line at the sending end

A balanceed three-phase load of 15 MA with a lagging load factor of 0.85 is supplied by a 115KV subtransmission line. if the line impedance is 50+j100Ohm per phase, determine the following: (a) The line current of the load.

  What energy does the electron have at a

Point A is at an electrostatic potential of +1V relative to point B in a vacumm. An electron initially at rest at B moves to A. What energy (in J and eV) does the electron have at A What is its velocity

  List the names of the active filters by the voltage gain

List the characteristics of an ideal op-amp. An amplifier has cutoff frequencies fc1 =1.2 kHz and fc2 = 16.4 kHz. Calculate the Bandwidth. List the names of the active filters by their voltagegain(dB) vs frequency graphs.

  Calculate net electric field at point a due to three charges

Calculate the net force on charge q2 due to charges q, and q3.

  Find then the corresponding impulse response h

Find the poles and zeros of H(s) and plot them in the s-plane. Find then the corresponding impulse response h(t). Determine if the impulse response of this system is absolutely integrable so that the system is BIBO stable.

  How much energy is exchanged when a positive charge moves

Supposed that the terminals are labeled a,b. V(ab) = -15 V, how much energy is exchanged when a positive charge of a 4 C moves through the device from a to b. Is the energy delivered or taken from the device.

  Computation the percentage second harmonic distortion

Calculate the percentage second harmonic distortion present in the output. Calculate the percentage error in the output voltage compared to its ideal value at the instant of time when t= 1/3200 seconds.

  Find the line current and the total power taken by the load

a three- wire system has a balanced Y- connected load with a75-Ω resistance, 125- mH inductance, and 55-μFcapacitance in series from each line to the neutral point. assuming positive phase sequence with Vp= 125V at 60 Hz

  Calculate the magnitude of the electric field

The work required to carry a particle with charge of 6C from 5V eqipotential surface to a 6V eqipotential surface and back again to the 5V surface is

  How to estimate the lifetime at degrees celcius

When a type of integrated circuit is tested at 185 degrees Celcius, 10% of the circuits fail within two weeks with VDD = 1.0V. Estimate the 10% lifetime at 95 degrees Celcius and 1.0V assuming Ea = 1.0eV.

  Calculate motor speed in revolutions per minute

4.What is the fundamental benefit of PLC controls over manual controls 5.Describe the differences between the two methods of scanning during PLC logic solving. Which method holds the advantage over the other

  Calculate what is magnitude terminal voltage at power system

Through a three-phase transmission line, a three phase symmetrical load is supplied from a power system bus. The parameters per phase of the transmission line are: R=5 ohms, X=70 ohms, B=9*10^-4 ohms.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd