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Thermosiphon

Heating and Cooling

A thermosiphon is a method of moving a liquid or gas through a loop of piping using only the natural circulation created by heating, with no pump required. As fluid is heated it becomes less dense and rises, while cooler, denser fluid sinks to take its place, setting up a continuous circulation for as long as the heat source keeps running. The principle is widely used in passive solar water heaters, where a rooftop collector heats water that rises into a storage tank, and in some home heating systems and industrial process equipment, where eliminating a pump improves reliability and lowers running cost.

Facts
Classification
Maturity
TRL 9: Actual System Proven in Operational Environment 1
Sources
1. Thermosiphon - Wikipedia
  • Technology maturity, entity description (description property itself uncited on this atlas; cited against the entity's own live or freshly minted Wikipedia source instead)
    The principle is widely used in passive solar water heaters, where a rooftop collector heats water that rises into a storage tank, and in some home heating systems and industrial process equipment, where eliminating a pump improves reliability and lowers running cost.
  • In Group: Heat Exchangers and Boiler Components, Lead
    A thermosiphon (or thermosyphon) is a device that employs a method of passive heat exchange based on natural convection, which circulates a fluid without the necessity of a mechanical pump.
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