Need imfo on BON-AIRE evaperator  or portable coolers?
100135
Sounds cool.  Pun intended.  I placed this on my watch list because I'd like to know the source for this info when it comes.  Good luck.
1008417
Liquid air is being used for rapid cooling.
625254
Air conditioning?  Well I don't really know much about this stuff but it sounds pretty cool...
812553
ok my way is an extreme but i suggest encase it in silicone let it dry then its water proof i saw a pic of a cooling system for a mother board it was encased in silicone and put in a fish tank \n\nBUT BE WARNED ENCASING IT IN SILICONE WILL ADD TO THE HEAT PROBLEM ON SOME BOARDS
1005734
That's a bit high...usually want to operate at about 40-45 C or less. Get yourself a better heat sink and cooling fan, and maybe a better cooled case.
496976
a case fan is 4 dollars and takes 2 minutes to install.  I suggest that its best to ere on the side of conservatism and spend the 4 dollars.  If nothing else, it will be 4 dollars spent towards peace of mind.\n\nchances are you dont need it, but since your smart enough to think about it you may as well put your own fears to rest.\n\nanother plus, it cant hurt anything unless you really mess up installing it big time.
592913
a box fan works great a small fountain or even a fish tank with a water filter heavy curtains and rugs. also weather strip around doors and put a door guard will help on noise and cooling and heating bills.
522557
Do a search on Swamp Coolers. It is a box with a squirrel cage fan, a water supply and pads around the exterior to humidify the air. This system of cooling will only be able to humidify the air to about 35%. If you are in a humid area, try something else.
1126271
HI, lovely system the XPS400. It doesn't need an extra fan, it comes with two. And even if u find some place to put one, put one at the rear to pull out hot air i.e. an exhaust bcoz that'll automatically work for the cool air to be sucked in.\nHope that helps for more u can check out\nhttp://support.dell.com/support/edocs/systems/xps400/sm/index.htm
350827
Lemonade bottle (fins will help) and a water/air ratio of 1/3 : 2/3 makes a good starting point. The rest is good old trial and error!
928091
In general the temperature of the water has very little impact on the temperature reduction due to evaporative cooling.\n\nAs to how cool you can get the air. If you have sufficient contact between the air and water, you should be able to approach the wet bulb temperature of the air but since the contact is not 100% efficient you will never reach the wet bulb temperature.\n\nI don't have a chart handy but you should be able to determine the wet bulb temperature that corresponds to 23% humidity.
115612
Hey what is your climate? You know what? It doesn't matter. 150 sq ft is like a walk in closet. Get the smallest window unit you can find. Or get a great big one from a thrift store or flea market. A hand held fan blowing over an ice tray could cool that room. That must be a school question or something so you probley want pounds. 15lbs
899553
I got the Vick's cool air humidifier.  (the cool air is supposed to be better)   I think it was about $30 and works pretty well.\n\nI wouldn't' think that trying to make one at home would be a good idea.  Something about sticking my head over a hot pot of water just doesn't sound safe.
982374
Try a company called Eurocold
631466
2 hours power will cool it to perfection all time, you rather choose split , it better than the window unit, but if considering cost , then you can go for windows unit
397666
Mist cooling is simply introducing an atomized spray of water into an airstream to cool the air.   As the water droplets vaporize and dissolve in the air, they remove heat energy from the air, leaving the air slightly cooler.\n\nThese systems are most effective in dry heat climates, where the relative humidity is low.  The water can evaporate much more quickly, removing more heat.\n\nThe lowest temperature that can be conceivably reached (provided that the system were 100% efficient) is the dewpoint temperature, also known as the wet-bulb temperature.  If the air were cooled to this temperature, its relative humidity would be 100% and it would be at maximum moisture saturation.  So, in most cases, these coolers can only reduce temperatures to 60 or 70 degrees under normal conditions, unless you're in a desert or other arid region.\n\nMost mist coolers are smaller, portable systems that use a common fan with several nozzles in front of it that produce a very fine mist spray of water.\n\nSmaller systems are also available for cooling milling work in tooling manufacturing.  These systems typically have an additive in the water supply to reduce the oxidation effects of the water.
317109
Take table for R134a refrigerant:\n\na) delta s = entropy change\n--inlet for evaporator assuming 50%moisture= interpolate to get S \n@200kpa for R134a\n0       Sg   \n0.5     S\n1       Sf\nget Sg and Sf from table at 200kpa for R134a. \n \n--out for evaporator = Sg at 200Kpa (get from table) since it is sat vap.\n\nthe difference of both Sfg and Sg is the answer.\n\nb)  delta S = Q / T  where Q = 120 KJ and T = -5+273 = 268K\n\nc) add both a) and b) is the total entropy