Retrieving thermodynamic properties TABLE A-6 Superheated water T 小 S Tables ℃ m3/kg kJ/kg kJ/kg kJ/kg-K P-0.01MPa(45.81℃) Sat. 14.670 2437.22583.9 8.1488 50 14.867 2443.32592.0 8.1741 100 17.196 2515.5 2687.5 8.4489 150 19.513 2587.92783.0 8.6893 200 21.826 2661.42879.6 8.9049 250 24.136 2736.1 2977.5 9.1015 300 26.446 2812.3 3076.7 9.2827 400 31.063 2969.33280.0 9.6094 Graphs 500 35.680 3132.93489.7 9.8998 600 40.296 3303.33706.3 10.1631 700 44.911 3480.83929.9 10,4056 How? 800 49.527 3665.44160.610.6312 Is it possible to have some simple relations among the properties that are sufficiently general and accurate? Equations RT a pV=RT of State 元-bD2 Computer software (EES,lT,Refprop.…) they are based on EoS 上游充通大 March 19,2019 3 SHANGHAI JIAO TONG UNIVERSITYMarch 19, 2019 3 Retrieving thermodynamic properties How? Tables Graphs Equations of State … Computer software (EES, IT, Refprop…) they are based on EoS pv RT  Is it possible to have some simple relations among the properties that are sufficiently general and accurate?