150-182 and several steam table books, among others ASME Steam Tables and Properties of Water and Steam by W. Wagner et al., "The IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam," ASME J. The formulation is described in a paper by W. IAPWS-IF97 was developed in an international research project coordinated by the International Association for the Properties of Water and Steam (IAPWS). In 1997, IFC-67 has been replaced by a new formulation, the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam or IAPWS-IF97 for short. The equations underlying IFC-97 are published for example in. Since 1967 IFC-67 has been used for "official" calculations such as performance guarantee calculations of power cycles. In this field it's also important that all parties involved, e.g., companies bidding for equipment in a new steam power plant, base their calculations on the same property data values because small differences may produce appreciable differences.Ī standard for the thermodynamic properties of water over a wide range of temperature and pressure was developed in the 1960's, the 1967 IFC Formulation for Industrial Use (IFC-67). ![]() Accurate data are especially needed for the design of equipment in steam power plants (boilers, turbines, condensers). ![]() Thermodynamic, transport and other properties of water are known better than of any other substance. For other calculations, try related software: EES (Engineering Equation Solver), OpenCalphad, Thermo-Calc, ProPhyPlus, BibPhy, DiagSim, ThermoSoft and many more.That's why a good deal of work has been spent on the investigation and measurement of water properties over the years. Languages: Contact me to improve the translation to your mother tongue. Test version: Get the latest features and enhancements as they are pushed out at. Advanced features: Main features are free, but you can buy-in extra features (marked with *) for advanced calculations. You will receive a free license with all the extra features for your collaboration. If you find an error, explain me how to reproduce it so I can fix it. Error detection and correction: Calculations are accurate, but software bugs are unpredictable. Educational hints: Quick reminders of thermodynamic concepts and formulas. Interactive steam charts (Pressure-Volume, Temperature-Entropy, Enthalpy-Entropy, etc) with linear or logarithmic scales, automatic zoom and draggable rulers. Customizable Ambient conditions for exergy calculation, and Reference State for matching the results with any bibliography or scholar book: Cengel - Boles, Moran - Shapiro, Sonntag - Borgnakke - Van Wylen, Rogers - Mayhew, Bejan, Nag, etc. Configuration of the thermodynamic system as Control Mass or Control Volume (Closed system or Open system), and of the Sign Convention of the First Principle (∆U = Q - W, ∆U = Q + W), to calculate the Work of the processes according the problem. Substances: Water, Air, Ammonia, Carbon dioxide, Nitrogen, Oxygen, Alkanes (Butane, Ethane, Heptane, Hexane, Isopentane, Methane, Octane, Pentane, Propane), Alkenes (Ethylene, Propylene), Refrigerants* (R11, R12, R13, R14, R22, R23, R114, R123, R134a, RC318, R500, R502, Propyl alcohol), Ideal gases (Water, Air, Ammonia, Carbon monoxide, Carbon dioxide, Methane, Acetylene, Ethylene, Hydrogen, Nitrogen (N), Nitrogen monoxide, Oxygen, Hydroxide, Chlorine, Fluorine, Hydrobromic acid, Hydrogen chloride, Hydrogen iodide, Hydrogen sulfide, Sulfur dioxide), Noble gases (Helium, Neon, Argon, Krypton, Xenon, Radon). Units: Pressure (bar, at, atm, kPa, MPa, psia), Temperature (K, C, R, F), Volume (m3, ltr, ft3, gal), Mass (mol, kmol, kg, lbm), Energy (J, kJ, kc, kWh, BTu), Power (W, kW, hp, hp(UK), BTus, BTUh). Automatic calculation of cycles: Carnot, Otto, Diesel, Dual-Mixed, Stirling, Joule-Brayton, Regenerative heat exchanger*, Power Rankine*, Refrigeration Rankine*, and Rankine plus open or close heat exchangers*. Cycle properties: Thermal efficiency, COP heating, COP cooling, plus all the process properties. Process properties: Heat, Work, Expansion work, Technical work, Flux work, and increments of main state properties. State properties: Pressure, Temperature, Volume, Internal energy, Enthalpy, Entropy, Exergy, Pressure, Specific heat, Quality, and Saturated properties. Calculate states, processes and cycles of free-designed systems or theoretical exercises. Ensure your learning with reminders of main thermodynamic laws, equations and concepts. Fast and reliable calculations of steam tables of water and other 55 substances. Thermodynamics calculator of steam tables and thermodynamic propertiesĪpp to solve problems and exercises of Engineering Thermodynamics. ![]() To take advantage of these days at home, write me an email to and I will send you a free "Bachelor license" to ease your Thermodynamic lessons :-)
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