Energy efficiency

Energy efficiency

Industry: Energy

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Energy efficiency

Acid rain

Energy; Energy efficiency

A term used to describe precipitation that has become acidic (low pH) due to the emission of sulphur oxides from fossil fuel burning power plants.

Vapour retarder

Energy; Energy efficiency

A material that retards the movement of water vapour through a building element (walls, ceilings) and prevents insulation and structural wood from becoming damp and metals from corroding. Often ...

Absorbent

Energy; Energy efficiency

A material that extracts one or more substances from a fluid (gas or liquid) medium on contact, and which changes physically and/or chemically in the process. The less volatile of the two working ...

A material that can be used to store thermal energy as latent heat. Various types of materials have been and are being investigated such as inorganic salts, eutectic compounds, and paraffins, for a ...

Photobiological hydrogen production

Energy; Energy efficiency

A hydrogen production process that process uses algae. Under certain conditions, the pigments in certain types of algae absorb solar energy. An enzyme in the cell acts as a catalyst to split water ...

Propane

Energy; Energy efficiency

A hydrocarbon gas, C3H8, occurring in crude oil, natural gas, and refinery cracking gas. It is used as a fuel, a solvent, and a refrigerant. Propane liquefies under pressure and is the major ...

Natural gas

Energy; Energy efficiency

A hydrocarbon gas obtained from underground sources, often in association with petroleum and coal deposits. It generally contains a high percentage of methane, varying amounts of ethane, and inert ...