jnh11564
Electrical
- Aug 6, 2010
- 1
I'm wondering if someone can provide a reference for the wetbulb calculation provided by M777182 in thread 724-129442. The calculation is as follows:
m777182 (Chemical) 20 Jul 05 6:35
On a range Tdry bulb=15..40[deg C] and rh=10...90[%]you can calculate the Twet bulb[degC] at P=1006[mbar](=755 Torr)with max relative error~6% with an approximative polynomial model that you can put in a cells. For lower Tdry and rh the relative error will be higher.
Twet bulb= A*Tdry + B*rh + C*Tdry^2 + D*rh^2+ E*Tdry*rh + F whereA=5,391260E-01B=1,047837E-01C=-7,493556E-04D=-1,077432E-03E=6,414631E-03F=-5,151526E+00
Thanks!
m777182 (Chemical) 20 Jul 05 6:35
On a range Tdry bulb=15..40[deg C] and rh=10...90[%]you can calculate the Twet bulb[degC] at P=1006[mbar](=755 Torr)with max relative error~6% with an approximative polynomial model that you can put in a cells. For lower Tdry and rh the relative error will be higher.
Twet bulb= A*Tdry + B*rh + C*Tdry^2 + D*rh^2+ E*Tdry*rh + F whereA=5,391260E-01B=1,047837E-01C=-7,493556E-04D=-1,077432E-03E=6,414631E-03F=-5,151526E+00
Thanks!
