|
Jing, Thank you for the file and first I want to say that your simulation is very well put together. You avoided a lot of the pitfalls and traps that are common sources of errors! Well done. I had a look at your simulation and found that during those few periods of the year when the water is coming out of the tower slightly hotter than it goes in are just because the ambient temperature and RH are so high at those times that the tower can't do any cooling. The way that a closed circuit tower works is that water is sprayed over the tubes that contain the water that is being cooled. As water evaporates off the tubes, it cools the tubes and thus the water in them. If it gets too hot and humid out, however, there isn't much evaporation off the tubes and consequently there isn't any cooling. Best, David On 5/1/2014 10:11, Jing Hong wrote:
-- *************************** David BRADLEY Principal Thermal Energy Systems Specialists, LLC 22 North Carroll Street - suite 370 Madison, WI 53703 USA P:+1.608.274.2577 F:+1.608.278.1475 d.bradley@tess-inc.com http://www.tess-inc.com http://www.trnsys.com |