Français
1. Energy: what for?
Energy is essential to the economic development of mankind and the improvement of living standards. It is mainly consumed in thermal form (heat or cold), for transport or to generate electricity. Food is also a form of energy, but is not included in energy balances. It was the main source of energy for primitive man, whose diet was much poorer than today's in developed countries. Today, the energy content of food represents only 5-6% of the energy consumed worldwide. But it remains essential.
It takes around 2.7 kWh of food per day to support the basic metabolism of an average human being. This corresponds to an average power output of 110 W, or that of an incandescent lamp providing good lighting in a room. Living beings are therefore characterized by excellent energy efficiency. The functioning of the human brain consumes up...
The Ultimate Scientific and Technical Reference
This article is included in
Smart cities
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Energy: what for?
Trends in energy demand
Bibliography
Bibliography
Websites
French Environment and Energy Management Agency http://www.ademe.fr
International Energy Agency http://www.iea.org
Areva http://www.areva.com
BP statistical review...
The Ultimate Scientific and Technical Reference
