Steam jet cooling

From Wikipedia, the free encyclopedia

Steam jet cooling is a method of cooling water by using a high-pressure jet of steam. Typically, it is used at industrial sites where a suitable steam supply already exists for other purposes or, historically, for air conditioning on passenger trains where steam is also used for carriage heating.

[edit] Principle

Steam is passed through a vacuum ejector of high efficiency to exhaust a separate, closed flask which forms part of a cooling water circuit. The depression in the flask causes some of the water to evaporate, thus giving up heat. The chilled water is pumped through the circuit to air coolers, while the evaporated water from the ejector is recovered in separate condensers and returned to the cooling circuit.

[edit] See also

• Steam generator (railroad)

[edit] References

• Cooling Under Vacuum. Steam jet cooling plants – construction details and how they work accessed 22 December 2006.