[Equest-users] Evapotranspiration Rate - Greenhouse

[Singhal, Harshul]

Hi everyone,

I am modeling one greenhouse for which I need to manually calculate latent load through evapotranspiration rate through plants in the space. I came across with some research where they talked about calculating evapotranspiration rate in mm/day or mm/hr.

http://edis.ifas.ufl.edu/pdffiles/ae/ae45900.pdf

also, I got this software on "land & water division" website to calculate ET rate: http://www.fao.org/nr/water/eto.html

Can someone please explain it to me if it makes sense to use this calculation for ET rate through crops in glass chamber? Why this unit is in mm/day (length/time unit)? Tried to look around but haven't got the explanation. Why it's not some volume/time unit? Is it mm/day for every sq ft or every sq metre?

Some inputs will be very helpful here. Thanks

Harshul Singhal, LEED AP BD+C
Project Consultant
Thornton Tomasetti
386 Fore Street, Suite 401
Portland, ME  04101
T +1.207.245.6060  F +1.207.245.6061
D +1.207.245.6074
HSinghal at ThorntonTomasetti.com
www.ThorntonTomasetti.com


<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

The information in this email and any attachments may contain

confidential information that is intended solely for the

attention and use of the named addressee(s). This message or

any part thereof must not be disclosed, copied, distributed

or retained by any person without authorization from the

addressee. If you are not the intended addressee, please

notify the sender immediately, and delete this message.

<><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><>

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20150529/d9cc53fe/attachment.htm>