26th February 2010 - 03:58 AM
QUOTE (Guest+Feb 24 2010, 06:55 PM)
About 25 years ago I built a monitor
Does the gauge needle still rip into the extreme pompous imbecile zone, when you approach it?
26th February 2010 - 04:47 AM
QUOTE (hydrosoul+Feb 24 2010, 03:42 PM)
I am trying to understand how many BTU are necessary to evaporate water from clay at a certain humidity. Lets say 10% or 15%.
I understand that it is not the same energy necessary to evaporate pure water. Does some know something about this?
Can anyone help me?
Jorge from Chile
Pointless question - firstly would it be Illite, kaolinite, smectite etc .... clays vary in minerals/water content/particle distributions of the very low µm order. Therefore, calculation of desiccating the stuff in BTU's is nigh on impossible, unless you know its exact composition.
ps;- only an insane idiot (Confused2) would attempt to give you an answer.
8th April 2010 - 05:56 AM
Clay is a naturally occurring material composed primarily of fine-grained minerals, which show plasticity through a variable range of water content, and which can be hardened when dried or fired. Clay deposits are mostly composed of clay minerals (phyllosilicate minerals), minerals which impart plasticity and harden when fired or dried, and variable amounts of water trapped in the mineral structure by polar attraction. Organic materials which do not impart plasticity may also be a part of clay deposits.
Evaporation is a type of vaporization of a liquid, that occurs only on the surface of a liquid. The other type of vaporization is boiling, that instead occurs on the entire mass of the liquid. Evaporation is also part of the water cycle.
Evaporation is a type of phase transition; it is the process by which molecules in a liquid state (e.g. water) spontaneously become gaseous (e.g. water vapor). Generally, evaporation can be seen by the gradual disappearance of a liquid from a substance when exposed to a significant volume of gas. Vaporization and evaporation however, are not entirely the same processes.
On average, the molecules in a glass of water do not have enough heat energy to escape from the liquid. With sufficient heat, the liquid would turn into vapor quickly (see boiling point). When the molecules collide, they transfer energy to each other in varying degrees, based on how they collide. Sometimes the transfer is so one-sided for a molecule near the surface that it ends up with enough energy to escape.
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