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Heat (energy) is necessary for evaporation to occur. Energy is used to break the bonds that hold water molecules together, which is why water easily evaporates at the boiling point (212° F, 100° C) but evaporates much more slowly at the fre...
http://ga.water.usgs.gov/edu/watercycleevaporation.html
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Evaporation is a thermal separation process, widely used for concentration of liquids in the form of solutions, suspensions, and emulsions. Concentration is accomplished by boiling out a solvent, normally water, from the liquid. ... In most cases, concentrate resulting from the evaporation process is the final product.
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www.niroinc.com/news_archives/evaporation_process_princ...
www.niroinc.com/news_archives/evaporation_process_principles.asp
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Water is transferred from the surface to the atmosphere through evaporation, the process by which water changes from a liquid to a gas. ... Approximately 80% of all evaporation is from the oceans, with the remaining 20% coming from inland water and vegetation. Winds transport the evaporated water around the globe,
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ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/hyd/evap.rxml
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Evaporation is the process that changes a liquid into a gas. It can occur at any temperature, and is due to the movement of molecules in the liquid. For example, water left in a saucer will gradually evaporate. The water molecules escape into the air as a gas that is water vapor.
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www.browseinfo.net/evaporation.html
www.browseinfo.net/evaporation.html
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One process which tranfers water from the ground back to the atmosphere is evaporation. Evaporation is when water passes from a liquid phase to a gas phase. Rates of evaporation of water depend on things like the temperature, humidity, and wind.
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www.windows.ucar.edu/tour/link=/earth/Water/evaporation...
www.windows.ucar.edu/tour/link=/earth/Water/evaporation.html
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Under reduced air pressure, the boiling point of water can be brought down to temperatures well below 100. Attempts to conserve salt-boiling fuel and speed production by utilising this intriguing property of water resulted in yet a further breakthrough in salt technology: the modern vacuum-evaporation process.
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www.jti.co.jp/Culture/museum/english/salt/Japanesesalt/...
www.jti.co.jp/Culture/museum/english/salt/Japanesesalt/sengo/vacuum.html
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Title: Monitoring the evaporation process of liquid samples in sub-nanoliter vials ... One would expect that the evaporation process of liquid droplets was described many years ago. On the contrary, just recently some underlying principles of the dynamic process of evaporation have been published.
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www.ph.tn.tudelft.nl/People/lucas/publications/1999/ASC...
www.ph.tn.tudelft.nl/People/lucas/publications/1999/ASCI99RDTYLV/ASCI99RDTYLV.html
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Even more important is the fact that the low-grade, reject, waste heat can be used for driving the evaporation process. This quality of waste heat is so low, it is regarded as being available free of cost.
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www.esemag.com/0599/multi.html
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Engineering partner to the big Danish companies; ... BJORN Evaporator type ELTS.... ...for fully automized an continouos high concentration of oil bearing waste water and emulsions ; [ read more ] ... Evaporation - Inddampning - Engineering - Process Equipment...
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