Sat Pressure 2a82e68a-6913-40ee-8257-974155aae359 13 Water Vapor Saturation Pressure Ruben Sidranski 4 5 false false 0 decimal
&[DATE] &[TIME] - &[FILENAME]
&[PAGENUM] / &[COUNT]
Water vapor pressure at Sea Level (IP) per ASHRAE Fundamentals 2017
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2017 ASHRAE Fundamentals:The coefficients of Equations (5) and (6) were derived from the Hyland-Wexler equations, which aregiven in SI units. Because of rounding errors in the derivations and in some computers’ calculatingprecision, results from Equations (5) and (6) may not agree precisely with "published" values.. 32F was averaged between the two equations.

#Temp Press.ws #C 1.0214165 10 4 ^ * - 4.8932428 10 0 ^ * - 5.3765794 10 3 - ^ * - 1.9202377 10 7 - ^ * 3.5575832 10 10 - ^ * 9.0344688 10 14 - ^ * - 4.1635019 10 0 ^ * 1.0440397 10 4 ^ * - 1.1294650 10 1 ^ * - 2.7022355 10 2 - ^ * - 1.2890360 10 5 - ^ * 2.4780681 10 9 - ^ * - 6.5459673 10 0 ^ * 13 1 mat : #C 1 el #Temp °Ra / / #C 2 el + #C 3 el #Temp °Ra / * + #C 4 el #Temp °Ra / ( 2 ^ * + #C 5 el #Temp °Ra / ( 3 ^ * + #C 6 el #Temp °Ra / ( 4 ^ * + #C 7 el #Temp °Ra / ln * + exp 148 °F * - ( #Temp ≤ ( #Temp 32 °F * < ( & #C 1 el #Temp °Ra / / #C 2 el + #C 3 el #Temp °Ra / * + #C 4 el #Temp °Ra / ( 2 ^ * + #C 5 el #Temp °Ra / ( 3 ^ * + #C 6 el #Temp °Ra / ( 4 ^ * + #C 7 el #Temp °Ra / ln * + exp #C 8 el #Temp °Ra / / #C 9 el + #C 10 el #Temp °Ra / * + #C 11 el #Temp °Ra / ( 2 ^ * + #C 12 el #Temp °Ra / ( 3 ^ * + #C 13 el #Temp °Ra / ln * + exp + 2 / #Temp 32 °F * ≡ #C 8 el #Temp °Ra / / #C 9 el + #C 10 el #Temp °Ra / * + #C 11 el #Temp °Ra / ( 2 ^ * + #C 12 el #Temp °Ra / ( 3 ^ * + #C 13 el #Temp °Ra / ln * + exp 32 °F * #Temp < ( #Temp 392 °F * ≤ ( & NOT IN ASHRAE FUNDAMENTALS DEFINITIONS cases 2 1 line psia * :

THIS IS THE AVERAGE OF ASHRAE TABLE

32 °F * Press.ws 0.088645 psia * psia 0.000116

@-80F=0.000116

 psia 67.033985

@300F=67.0206