A physical object for storing energy, and which after discharge may be recharged.

A cooler that is intended to use air as the cooling medium.

A gravity separator where two liquid substances separates and where the substance with the less gravity can be skimmed off.

A tank or vessel in which a process stream is charged or pumped and where lighter products flash off or vaporize and are drawn off at the top. The remainder heavier fractions are drawn off at the bottom of the vessel.

A reboiler often boils liquid coming from the bottom of a distillation column, after which the resulting vapour is returned to the distillation column.

A drum intended to separate relatively small quantities of liquid from a vapour stream.

A heat exchanger using plates as the device for separating the two fluids and across which the energy is transferred.

A non-corrugated plate heat exchanger that has flat plates with chemically etched flow passages which are diffusion bonded together into blocks.

A tubular heat exchanger in which a tube bundle is surrounded by a shell.