In this table some very important energy concepts are explained
1 Watt corresponds to the power which needs to be invested over 1 s
to move an object over a path length of 1 m while applying a force of 1 N on
1 Watt corresponds to the power which you need to heat up 1 gram of
water by 14.3 K over 60 seconds. Reminder: 1 W = 1 J/s.
The watthour (Wh) is the Energy which is supplied as power to a
device in one hour. The best example is a 60 Watt bulb which burned during
one hour. During this one hour, the bulb used an Energy of 60 Wh.
Energy in terms of fuel usage is usually described by the unit: kWh (kilowatt-hour).
1 kWh = 3.6 MJ = 3.6 • 106 J
= 859.845 kcal
1 hp (horsepower) = 735.498’75 W
1 l Car fuel = 9 kWh
One Ampere-hour is the charge amount which flows through a conductor
at a constant current of 1 A for over 1 hour.
·In the table on the 2nd page you will find the
energy contents of various materials which are commonly exploited and combusted
in our daily life in order to gain energy.
·On the 3rd page there are values listed which
illustrate the power production of various powerplants and other energy
·On the 4th page there are values listed which
illustrate the energy and power consumption of commonly used vehicles and
·Keep in mind that all these values serve only for orientation
purposes. Thus the values are lay in the range of true values but are NOT
·The values are oriented on sources from Wikipedia, News-Papers
and technical data of the corresponding developer or operator.
Weakly enriched Uranium, used in
Nuclear Power plants (~5% 235U)
1.3 • 105
Enriched Uranium (100% 235U)
2.2 • 107
Enriched Thorium (100% 232Th)
Fat (animal and vegetable)
Kind of power plant
One nuclear reactor unit
One nuclear reactor core of a nuclear
power plant holds approximately 100 tons of Uranium. Of these 100 tons, ~4 %
are 235U. Every year 20 tons of these nuclear fuel elements are replaced
by new ones. Thus the nuclear fuel elements can stay up to 3 or 5 years
inside the nuclear reactor core without replacement.
1 kg of natural Uranium (containing
~0.7 % of 235U) has more or less the same energy as ~13’000 l of
petroleum or ~20’000 kg of black coal.
One fossil-fuel power station unit
The black coal consumption of a
fossil-fuel power station unit is somewhat around 12’000 tons/day.
at 1’000 W/m² sun irradiation
2 – 8
Max. power limit is dependent on the
size of the wind turbine
dependent on the river size
Energy and power consumption of various devices and vehicles
average car burns ca. 6 l (ca. 194 MJ) car fuel per 100 km on a freeway.
Plane (holding 240 people, per 100 km
per 100 km
burns ca. 850 l kerosene per 100 km, while being able to transport ~240
people. This makes ca. 3.5 l
per 100 km per person
helicopter uses ~ 150 l kerosene per 100 km when flying 250 km/h. Yet fuel
usage is very dependent on size and the movement of the helicopter. A Eurocopter
HH-65 Dolphin fits into this scale
1’900 – 3’300
ICE Train needs an energy of ca 1900 – 3300 kWh to drive a length of 100 km
uses on average 30 l diesel when driving 100 km at a speed of 80 km/h.
Buses use up to 60 l fuel per 100 km
70 – 500
on the hard ware of the computer and the kind of work the computer performs
32” – 40”
Comparison of Atomic Bombs
The strength of Atomic Bombs is usually
described by tons of TNT equivalents. Thus, if an Atomic Bomb hast a blast
yield of 1 kilotons, this means that 1000 tons of TNT have the same blast
yield. Atomic bombs usually contain enriched Uranium or Plutonium containing
at least 80 % 235U or 239P respectively.