Prediction of Enthalpy and Internal Energy of Saturated Steam

The main aim of this work is to establish an empirical formula for calculation the enthalpy and internal energy of saturated steam. The use of this formula reflects a good result under saturated steam conditions. In order to obtain this reliable model for calculating these thermodynamic prosperities, a formula is established by nonlinear regression based on experimental data collection, after a thorough survey of literatures. Application of the proposed formula shows that, the average percentage error between the results obtained by this equation and the experimental data, is about (0.58%) for internal energy, and for enthalpy is about (0.64%), for 71 data points at each case.