Convection is single or multiphase fluid flow that occurs spontaneously due to the combined effects of material property heterogeneity and body forces on a fluid, most commonly density and gravity.

The development of a geothermal resource where levels of geothermal reservoir temperature and reservoir flow capacity are naturally sufficient to produce electricity.

A collective description for paints based on binders such as bitumen, alkyds and oils.

A circuit that converts AC to DC or from DC to AC or acts as AC frequency changer. Modern electric drive systems, in which speed control of the electric motor is required, use power supply converters.

Converter substations may be associated with HVDC converter plants, traction current, or interconnected non-synchronous networks.

A device used to step up the voltage of the AC supply network.

The entire system for delivering bulk cargo from the shore stockpile or receiving point to the ship.

A group of vessels sailing together, e.g. through a canal or ice.

A heat exchanger where hot air or liquid is cooled by seawater or by fresh water. Coolers fall into two groups, shell and tube, and the plate type.

Cooling is removal of heat, usually resulting in a lower temperature and/or phase change.

Cooling degree day is a measurement designed to quantify the demand for air conditioning needed to cool a building.

In the study of heat transfer, fins are surfaces that extend from an object to increase the rate of heat transfer to or from the environment by increasing convection.

A cooling tower is a heat exchanger in which air and water are brought into direct contact with each other in order to reduce the water's temperature

A vessel, other than a rescue unit, designated to coordinate surface search and rescue operation within a specified area.

A ductile metal, which has good electrical conductivity and is widely used in electrical equipment. It has a high resistance to corrosion and also forms a number of important alloys, e.g. brass and bronze.

Copper zinc tin sulfide (CZTS) is a quaternary semiconducting compound which has received increasing interest since the late 2000s for applications in thin film solar cells.

A core catcher is a device provided to catch the molten core material (corium) of a nuclear reactor in case of a nuclear meltdown and prevent it from escaping the containment building.

A core sample is a cylindrical section of (usually) a naturally-occurring substance.

The core–mantle boundary (CMB) of Earth lies between the planet's silicate mantle and its liquid iron-nickel outer core.

Stainless steel sandwich panels developed by MacGREGOR company for fixed and hoistable car decks on ferries and ro-ro ships.