International Steam Tables

The International Steam Tables - IAPWS-IF97 app has been developed by active members of the International Association for the Properties of Water and Steam (IAPWS) at the Zittau/Goerlitz University of Applied Sciences. The research group at the Department of Technical Thermodynamics in Zittau participated in the improvement of the Industrial Formulation IAPWS-IF97 for the Properties of Water and Steam and developed four supplementary standards for backward equations.

This app is on the market for Android and Apple-iOS, and is designed for snug use. The calculations of the thermodynamic properties are based on the Industrial Formulation IAPWS-IF97 and canopy its full vary of validity. In addition, transport properties, thermodynamic derivatives, and backward features may be calculated.

This app is meant for use by college students and engineers in their day by day work.

To learn extra in regards to the International Steam Tables - IAPWS-IF97 app go to our website www.thermodynamics-zittau.de for an in depth User's Guide.

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Features of the International Steam Tables - IAPWS-IF97 app:

The following mixtures of input variables could be chosen:

Pressure p and temperature t

Pressure p and vapor fraction x in moist steam area

Temperature t and vapor fraction x in wet steam area

Pressure p and particular enthalpy h

Pressure p and specific entropy s

Specific enthalpy h and particular entropy s

Specific inside power u and particular quantity v

Specific enthalpy h and specific volume v

The consumer simply edits the values of the enter variables and all outcomes are calculated mechanically. See the screenshots below this textual content for particulars.

Depending on the given pair of input variables the next properties will be calculated:

Pressure p or saturation stress ps

Temperature t or saturation temperature ts

Vapor fraction x

Specific quantity v

Density rho

Specific inner vitality u

Specific enthalpy h

Specific entropy s

Specific isobaric warmth capacity cp

Specific isochoric heat capacity cv

Isentropic exponent kappa

Speed of sound w

Isobaric cubic expansion coefficient alpha_v

Isothermal compressibility kappa_t

Thermal conductivity lambda

Dynamic viscosity eta

Kinematic viscosity ny

Prandtl quantity Pr

Thermal diffusivity a

The calculated properties are displayed in a scrollable view. The person simply must scroll down to see all the results. See the screenshots below for details.

If the consumer switches from one input variable mixture to a different the previously given or calculated values will be assigned to the new enter values and the output is being calculated mechanically. For example, if the consumer calculates a certain state level from pressure p and temperature t and switches to a calculation from pressure p and specific entropy s afterwards, the previously calculated worth for s (from p and t) will be assigned as enter value for s. This eases the calculation of thermodynamic processes in which one property is stored constant, e. g. of an isentropic enlargement.

The consumer can select SI or I-P unit techniques. In addition quite lots of different items are available,

e.g.

K, °C, °F, °R for Temperature,

MPa, bar, psi, atm for strain,

kg, lb for mass,

kJ, Btu, ft lbf, kcal for energy.

All items can be chosen independently however the consumer may also swap between SI and IP unit system for all properties with only one tap. See the screenshots under this textual content for particulars.

Unit conversions might be effective immediately.

A detailed User's Guide explains the features and capabilities of this App. View the User's guide online on www.thermodynamics-zittau.de.