James,
You ask an almost impossible question. The variables are incredible, not
the least of which is atmospheric humidity. Why dont you operate your
dosemeter from a water level activated float switch....no need for
adjustments.
HTH
Paul.
-----Original Message-----
From: Payne, James E [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, April 18, 2001 2:35 PM
To: '[EMAIL PROTECTED]'
Subject: Determining evaporation
Hi all,
I'm just finishing the equipment setup on a new reef tank, and I'm
trying to find the answer for something I don't know how to calculate or
estimate. I've got a medical dosimeter attached to a 3 gallon carboy that
I'm going to be using to replace all water lost to evaporation with
Kalkwasser. What I don't know is how much water will be lost. The tank is
65 gallons with a surface area of 648 sq. in. (36" x 18"). The water will
probably stay at right about 80 F (I don't have a chiller). There is some
surface agitation, but it's not extreme. The top is open to the air (no
hood), and there's plenty of circulation (~18 tank volumes/hour) in the
tank, so I don't expect much heat addition from the lighting (esp. since the
assembly is well ventilated). My dosimeter can be set in mL/hr. Any ideas
where I should start the flow rate? I know I can adjust the rate to be near
perfect as time goes on, but I don't know what ballpark range I should try
to begin with. Any ideas would be appreciated.
Thanks,
James Payne
[EMAIL PROTECTED]
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