1What are the four concerned study of electric power systems
Generation, Transmission, Distribution, Utilization
2This involves the conversion of energy from a non-electrical form (such as thermal, hydraulic, or solar energy) to electrical energy
Generation
3The formula for work where the mass move through a linear displacement in the direction of force
U = Fl
4The formula of work when the displacement is not in the direction of force
U = Flcosa
51 joules is equivalent to what N.m?
1 J = 1 N.m
6The capacity of a body to do work?
Energy
71 joules is equivalent to what Watts.Second?
1 J = 1 W.s
8How many joules in 1 KWh
1 KWh = 3.6×10⁶ J
9What are the two most important forms of mechanical energy?
Kinetic energy, Potential energy
10An energy that has a virtue of it's motion?
Kinetic energy
11What is the formula of kinetic energy?
KE = (½)Mu²
12An energy that has a virtue of it's position?
Potential energy
13What is the formula of Potential Energy
PE = Mgh
14What is the usual unit of Thermal energy?
calories (cal)
15One ____ is the amount of heat required to raise the temperature of one gram of water at 15°C through one Celsius degree
calorie
16How many joules in 1 cal?
1 cal = 4.186 J
17What is the equivalent of Joules and calories in 1 BTU?
1 BTU = 1.055 × 10³ J = 0.252 × 10³ cal
18In what unit of Thermal energy and electrical energy usually expressed?
BTU = KWh = MWh
19What's quad stands for?
Quadrillion British Thermal Unit
20What is the equivalent in Joules and BTU in 1 quad?
1 quad = 10¹⁵ BTU = 1.055 × 10¹⁸ J
21It is defined as the time rate at which work is done or the time rate of change of energy?
Power
22The formula for instantaneous power?
p = (dU/dt) = (dw/dt)
231 watts is equivalent to what joules/second?
1 W = 1 J/s
24The constant of proportionality “a” is also known as?
per-unit growth
25What is the formula for doubling time?
td = (ln2/a) = (0.693/a)
26The formula for energy consumed in one doubling period equals the energy consumed for the entire time prior to that doubling period.
Q1 = Q2 = (Po)(e^bt1)
27What are the 5 major sources of energy
1. Fossil fuels (coal, petroleum, and natural gas)
2. Solar Radiation
3. Tidal energy
4. Geothermal energy
5.Nuclear energy
28An energy generator that transforms the kinetic energy of the wind into rotary shaft motion and, in turn to electrical energy.
Turbine-type wind energy
29The formula for power in wind turbine?
P = 2.46 × 10^-3 D²U²
30The potential energy of a mass of water at a hydraulic head is converted into the kinetic energy of a hydraulic turbine that drives an electric generator
Hydropower conversion
31A flow rate of 1m³/s with a head of 100m provides what hydraulic power?
9.8 × 10⁵ W
32This energy is obtained by closing off bay with a dam, allowing it to fill during periods of high tide, and recovering the energy as it empties during the periods of low tides.
Tidal energy
33Formula for average tidal power
Pav = 0.219 H²
34Solve for the potential energy, the given mass is 1000 kg, and height is 100m
9.8 × 10⁵ J
35Formula for per unit growth?
M = Moe^at