Business

United Airlines scores 3Q profit as more travel returns

An improvement in customer travel levels helped United Airlines report a profit in the third quarter on Tuesday even as it pointed to higher jet fuel costs as the latest challenge facing the industry.

Energy & Green Tech

Philippines torn between LNG and renewable energy

The Philippines must turn to renewable sources to solve its energy crisis, environmental experts urge, as the country comes under pressure from big corporations to buy into liquefied natural gas (LNG).

Energy & Green Tech

France's $35B innovation plan includes nuclear reactor funds

French President Emmanuel Macron on Tuesday unveiled a 5-year, 30 billion-euro ($35 billion) investment plan for developing innovative technology and industrial activity, including building small nuclear reactors, electric ...

Energy & Green Tech

Producing kerosene from bio-based side streams

Wageningen University & Research and its partners have developed a new type of aviation fuel that is produced using bio-based waste streams from the agriculture industry.

Energy & Green Tech

Using heat from underground parking lots to warm apartments

Over a third of the energy used in Switzerland each year goes to heating. And nearly 60% of the heating used in Swiss residential buildings originates from fossil fuels—making Switzerland the biggest such consumer in Europe. ...

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Fuel

Fuel is any material that is burned or altered to obtain energy and to heat or to move an object. Fuel releases its energy either through a chemical reaction means, such as combustion, or nuclear means, such as nuclear fission or nuclear fusion. An important property of a useful fuel is that its energy can be stored to be released only when needed, and that the release is controlled in such a way that the energy can be harnessed to produce work. Examples: Methane, Petrol and Oil.

All carbon-based life forms—from microorganisms to animals and humans—depend on and use fuels as their source of energy. Their cells engage in an enzyme-mediated chemical process called metabolism that converts energy from food or light into a form that can be used to sustain life. Additionally, humans employ a variety of techniques to convert one form of energy into another, producing usable energy for purposes that go far beyond the energy needs of a human body. The application of energy released from fuels ranges from heat to cooking and from powering weapons to combustion and generation of electricity.

This text uses material from Wikipedia, licensed under CC BY-SA