sling psychrometer

[radwin]

does a thermometer with a wet wick then subjecting it to a fan can replace a sling psychrometer?

 

[walkes]

Isn't that the same thing? The thermometer with a wet bulb on it, if slung around will give you the wet-bulb temperature, go to your psych chart for dry-bulb and wet bulb for your humidity.

 

[MintJulep]

Yes, it can. The fan should "pull" air across, not "blow" to avoid error associated with fan heat.

It looks like everything you might ever want to know could be found here:

http://rp.ashrae.biz/page/ASHRAE-D-RP-1460-20110405.pdf

 

[willard3]

The air velocity at the bulb/wick is important.
How you get the velocity is your choice.

 

[cdxx139]

Sorry to be off topic, but...

MintJulep,
What a great resource that link was. Is that available to all ASHRAE members or part of the special HVAC&R Research subscription?

Regards

knowledge is power

 

[MintJulep]

I was surprised that it appears to be freely available. Typically ASHRAE research papers are available to anyone for a fee.