Draft:Archive/2024/Engineering thermodynamics/Steam tables/Worksheet for evaluating the accuracy of Wikiversity steam table entries

T(Celsius) = 350 ... p(bars) = 1.50E+02 bars ... (0.17% error)

 * (Superheated steam) values from the Wikiversity table:
 * v = volume (m^3/kg) = 1.15E-02


 * "True" values from http://webbook.nist.gov/chemistry/fluid/:
 * v = volume (m^3/kg) = 0.011481


 * Wikipedia's percent error (X_wiki - X_true)/X_true:
 * error(v)= .166%

T(Celsius) = 380 ... p(bars) = 400 ... (0.11% error)

 * (Superheated steam) values from the Wikiversity table:
 * v = volume (m^3/kg) = .00168
 * "True" values from http://webbook.nist.gov/chemistry/fluid/:
 * v = volume (m^3/kg) = .0016819
 * Wikipedia's percent error (X_wiki - X_true)/X_true:
 * error(v)= 0.11%

T(Celsius) = 500 ... p(bars) = 500 (0% error)

 * (Superheated steam) values from the Wikiversity table:
 * v = volume (m^3/kg) = 0.00389
 * "True" values from http://webbook.nist.gov/chemistry/fluid/:
 * v = volume (m^3/kg) = 0.00389
 * error(v)= 0%

T(Celsius) = 400.....P midway between 50 bars and 100

 * Wikiversity table:
 * v1(m^3/kg) = .0264
 * v2(m^3/kg) = .0578
 * v_wiki = (v1+v2)/2      =     .0421
 * http://webbook.nist.gov/chemistry/fluid/
 * P = (p1+p2)/2 = 75 bars
 * v_true = .036966
 * %error = 13.9%

T(Celsius) = xxx .....P midway between xxx bars and xxx

 * Wikiversity table:
 * v1(m^3/kg) = xxx
 * v2(m^3/kg) = xxx
 * v_wiki = (v1+v2)/2      =     xxx
 * http://webbook.nist.gov/chemistry/fluid/
 * P = (p1+p2)/2
 * v_true
 * %error =

T(Celsius) = xxx .....P midway between xxx bars and xxx

 * Wikiversity table:
 * v1(m^3/kg) = xxx
 * v2(m^3/kg) = xxx
 * v_wiki = (v1+v2)/2      =     xxx
 * http://webbook.nist.gov/chemistry/fluid/
 * P = (p1+p2)/2
 * v_true
 * %error =

T(Celsius) = ???

 * (Superheated steam) values from the Wikiversity table:
 * p = pressure (pars) = ???
 * v-fluid = volume (m^3/kg) = ???
 * v-gas = volume (m^3/kg) = ???
 * u-fluid = energy (kJ/kg) = ???
 * u-gas= energy (kJ/kg) = ???
 * h-fluid = enthalpy (kJ/kg) = ???
 * h-gas= = enthalpy (kJ/kg) = ???
 * s-fluid = entropy (kJ/kg) = ???
 * s-gas= = enthalpy (kJ/kg) = ???
 * "True" values from http://webbook.nist.gov/chemistry/fluid/:
 * p = pressure (pars) = ???
 * v-fluid = volume (m^3/kg) = ???
 * v-gas = volume (m^3/kg) = ???
 * u-fluid = energy (kJ/kg) = ???
 * u-gas = energy (kJ/kg) = ???
 * h-fluid = enthalpy (kJ/kg) = ???
 * h-gas = enthalpy (kJ/kg) = ???
 * s-fluid = entropy (kJ/kg) = ???
 * s-gas =  enthalpy (kJ/kg) = ???
 * Wikipedia's percent error (X_wiki - X_true)/X_true:
 * error: p = pressure (pars) = ???
 * error: v-fluid = volume (m^3/kg) = ???
 * error: v-fluid= volume (m^3/kg) = ???
 * error: u-gas = energy (kJ/kg) = ???
 * error: u-gas = energy (kJ/kg) = ???
 * error: h-fluid = enthalpy (kJ/kg) = ???
 * error: h-gas =  enthalpy (kJ/kg) = ???
 * error: s-fluid = entropy (kJ/kg) = ???
 * error: s-gas =  enthalpy (kJ/kg) = ???
 * (optional): who are you?

T(Celsius) = ???

 * (Superheated steam) values from the Wikiversity table:
 * p = pressure (pars) = ???
 * v-fluid = volume (m^3/kg) = ???
 * v-gas = volume (m^3/kg) = ???
 * u-fluid = energy (kJ/kg) = ???
 * u-gas= energy (kJ/kg) = ???
 * h-fluid = enthalpy (kJ/kg) = ???
 * h-gas= = enthalpy (kJ/kg) = ???
 * s-fluid = entropy (kJ/kg) = ???
 * s-gas= = enthalpy (kJ/kg) = ???
 * "True" values from http://webbook.nist.gov/chemistry/fluid/:
 * p = pressure (pars) = ???
 * v-fluid = volume (m^3/kg) = ???
 * v-gas = volume (m^3/kg) = ???
 * u-fluid = energy (kJ/kg) = ???
 * u-gas = energy (kJ/kg) = ???
 * h-fluid = enthalpy (kJ/kg) = ???
 * h-gas = enthalpy (kJ/kg) = ???
 * s-fluid = entropy (kJ/kg) = ???
 * s-gas =  enthalpy (kJ/kg) = ???
 * Wikipedia's percent error (X_wiki - X_true)/X_true:
 * error: p = pressure (pars) = ???
 * error: v-fluid = volume (m^3/kg) = ???
 * error: v-fluid= volume (m^3/kg) = ???
 * error: u-gas = energy (kJ/kg) = ???
 * error: u-gas = energy (kJ/kg) = ???
 * error: h-fluid = enthalpy (kJ/kg) = ???
 * error: h-gas =  enthalpy (kJ/kg) = ???
 * error: s-fluid = entropy (kJ/kg) = ???
 * error: s-gas =  enthalpy (kJ/kg) = ???
 * (optional): who are you?

T(Celsius) = ???

 * (Superheated steam) values from the Wikiversity table:
 * p = pressure (pars) = ???
 * v-fluid = volume (m^3/kg) = ???
 * v-gas = volume (m^3/kg) = ???
 * u-fluid = energy (kJ/kg) = ???
 * u-gas= energy (kJ/kg) = ???
 * h-fluid = enthalpy (kJ/kg) = ???
 * h-gas= = enthalpy (kJ/kg) = ???
 * s-fluid = entropy (kJ/kg) = ???
 * s-gas= = enthalpy (kJ/kg) = ???
 * "True" values from http://webbook.nist.gov/chemistry/fluid/:
 * p = pressure (pars) = ???
 * v-fluid = volume (m^3/kg) = ???
 * v-gas = volume (m^3/kg) = ???
 * u-fluid = energy (kJ/kg) = ???
 * u-gas = energy (kJ/kg) = ???
 * h-fluid = enthalpy (kJ/kg) = ???
 * h-gas = enthalpy (kJ/kg) = ???
 * s-fluid = entropy (kJ/kg) = ???
 * s-gas =  enthalpy (kJ/kg) = ???
 * Wikipedia's percent error (X_wiki - X_true)/X_true:
 * error: p = pressure (pars) = ???
 * error: v-fluid = volume (m^3/kg) = ???
 * error: v-fluid= volume (m^3/kg) = ???
 * error: u-gas = energy (kJ/kg) = ???
 * error: u-gas = energy (kJ/kg) = ???
 * error: h-fluid = enthalpy (kJ/kg) = ???
 * error: h-gas =  enthalpy (kJ/kg) = ???
 * error: s-fluid = entropy (kJ/kg) = ???
 * error: s-gas =  enthalpy (kJ/kg) = ???
 * (optional): who are you?