DefinitionenDie Energie eines Systems ist seine Fähigkeit, Arbeit zu leisten (in der Umgebung).

Energiewandler tauschen Energie zwischen einem System und der Umgebung in mindestens zwei Energieformen aus.

Motorchemische Energie kinetische Energie

Kraftwerkchemische Energie elektrische Energie

Großtechnische Energiewandlungsanlagen wie Kraftwerke bestehen aus mehreren Energiewandlern, die stufenweise Primärenergieformen in technisch nutzbare Energieformen wie elektrische Energie oder thermische Energie (Prozess- und Fernwärme) umwandeln.

Energiewandlung nennt man entsprechend eine Kategorie von Prozessen, bei denen Energie zwischen einem System und der Umgebung in mindestens zwei Energieformen ausgetauscht wird.

Besonders für eine Energiewandlung in elektrische Energie ist auch der umgangssprachliche Begriff Energieerzeugung üblich und bezieht sich auf die nach dem Prozess zur Verfügung gestellte Energieform (elektrische Energie).

Definitions

The of a system is its capacity to to work (in the surroundings).

transducers convert between a system and ist surroundings in at least two forms.

engineChemical kinetic

power plantChemical electrical

Name of the process: transformation

Power: rate of transformation

Stufenweise Energiewandlungen zur Stromerzeugung

transformation steps in electrical power generation

Transformation examples

to→↓ from mechanical thermal radiation electrical chemical nuclear

mechanical gear brake synchrotron radiation generator ultrasonics

synchrotron (particle accelerator)

thermal steam turbine heat exchanger

heat radiator (black body)

thermo couple blast furnace

radiation radiometer solar thermal collector

non-linear optics photovoltaics photosynthes

is

electrical electric motor resistance heating LED transformer rechargeable

battery

chemical combustion engine furnace chemilumi-

nescence fuel cell pyrolysis

nuclear nuclear bomb nuclear reactor

solar radiation

radio-isotope thermo-electric generator

radiolysis breeder reactor

More definitions …Definition according to ISO 13600

An carrier is either a substance or a phenomenon that can be used to produce mechanical work or heat or to operate chemical or physical processes.

It is any system or substance that contains energy for conversion as usable later or somewhere else. This could be converted for use in, for example, an appliance or vehicle.

Examples:

• springs• electrical batteries, capacitors• pressurized air, dammed water• hydrogen, petroleum, coal, wood, and natural gas.

Energy development is the effort to provide sufficient primary sources and secondary forms.

More definitions …Definition in the field of "Energetics"

Energy carriers (EC) are produced by the energy sector using primary energy sources (PES).

The distinction between "Energy Carriers" and "Primary Energy Sources" is extremely important since these two labels refer to forms of different quality so that they cannot be aggregated: 1 megajoule (MJ) of EC is not the same as 1 MJ of PES.

Sankey Diagram: Energy flow of Power Plant

E1=Energy consumed, El1=Electricity generated, El2=Internal use, El3=Electricity for consumption, L1=Processing Loss, L2=Transmission Loss. (Result of year 2008)

World consumption (2006)

production from 1989 to 1999

consumption from 1989 to 1999