Re: [TRNSYS-users] Error with Psychrometric Routine?

[David Bradley <bradley@tess-inc.com>]

Fred,
  perhaps I need to see the project. If you are passing 22.2 dry bulb and 14 wetbulb to Type33, it should just be spitting back the exact same thing with a calculation of RH. I just tried that and I'm getting an RH of 40% at 1atm pressure. When you say there is a 6.8C wetbulb, is that on the other side of the energy wheel?
David


On 8/31/2010 09:19, Fred Betz wrote:

I am passing 22.2 C dry bulb and 14.0 C wet bulb to the psychrometric routine (type 33f) and the output is 22.2 C dry bulb, 6. 8 C wet bulb and 0% RH, which is causing an error in the psychrometric routine for a total energy wheel.

 

The output should be approximately 60% RH.

 

The humidity ratio is also showing 0.0.

 

Please advise,

 

Fred

 

 

Fred Betz  PhD., LEED AP Sustainable Systems Analyst

AEI | AFFILIATED ENGINEERS, INC.   5802 Research Park Blvd. | Madison, WI  53719 P: 608.236.1175 | F: 608.238.2614   fbetz@aeieng.com  |  www.aeieng.com

 

 

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