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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. Thermosiphoning is used for circulation of liquids and volatile gases in heating and cooling applications such as heat pumps, water heaters, boilers and ...
Thomas Fowler (1777 – 31 March 1843) [1] was an English inventor whose most notable invention was the thermosiphon which formed the basis of early hot water central heating systems. He also designed and built an early mechanical calculator .
Thermosiphon – Method of heat exchange in which convection drives pumpless circulation Thermal barrier – Minimization of heat transfer Pages displaying short descriptions of redirect targets Thermal pad – pad on a printed circuit board connected to surrounding copper with a thermal connection Pages displaying wikidata descriptions as a ...
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Liquid-cooled engines usually have a circulation pump. The first engines relied on thermosiphon cooling alone, where hot coolant left the top of the engine block and passed to the radiator, where it was cooled before returning to the bottom of the engine. Circulation was powered by convection alone.
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The general forced circulation boiler has a low circulation ratio of range between three and ten. The circulation ratio is how much steam is produced per how much feed was put in. Natural circulation boilers have a huge range of circulation ratios all the way from five to one hundred. [6]
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