International Steam Tables vs StemFox Scientific Calculator Usage & Stats

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/Görlitz University of Applied Sciences. The research group at the Department of Technical Thermodynamics in Zittau participated in the development of the "Industrial Formulation IAPWS-IF97 for the Properties of Water and Steam" and developed four supplementary standards for backward equations. This universal app can be used on iPhone, iPad, and iPod touch, and is designed for comfortable use. The calculations of the thermodynamic properties are based on the Industrial Formulation IAPWS-IF97 and cover its full range of validity. In addition, transport properties, thermodynamic derivatives, and backward functions can be calculated. This app is intended to be used by students and engineers in their daily work. To learn more about the "International Steam Tables - IAPWS-IF97" app visit our website www.thermodynamics-zittau.de for a detailed User's Guide. --------------------------------------- Features of the "International Steam Tables - IAPWS-IF97" app: The following combinations of input variables can be chosen: Pressure p and temperature t Pressure p and vapor fraction x in wet steam region Temperature t and vapor fraction x in wet steam region Pressure p and specific enthalpy h Pressure p and specific entropy s Specific enthalpy h and specific entropy s Specific internal energy u and specific volume v Specific enthalpy h and specific volume v The user just edits the values of the input variables and all results are calculated automatically. See the screenshots below this text for details. Depending on the given pair of input variables the following properties will be calculated: Pressure p or saturation pressure ps Temperature t or saturation temperature ts Vapor fraction x Specific volume v Density rho Specific internal energy u Specific enthalpy h Specific entropy s Specific isobaric heat 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 number Pr Thermal diffusivity a The calculated properties are displayed in a scrollable view. The user just needs to scroll down to see all the results. See the screenshots below for details. If the user switches from one input variable combination to another the previously given or calculated values will be assigned to the new input values and the output is being calculated automatically. For example, if the user calculates a certain state point from pressure p and temperature t and switches to a calculation from pressure p and specific entropy s afterwards, the previously calculated value for s (from p and t) will be assigned as input value for s. This eases the calculation of thermodynamic processes in which one property is kept constant, e. g. of an isentropic expansion. The user can choose SI or I-P unit systems. In addition a variety of other units are available, e.g. K, °C, °F, °R for Temperature, MPa, bar, psi, atm for pressure, kg, lb for mass, kJ, Btu, ft lbf, kcal for energy. All units can be selected independently but the user might also switch between SI and IP unit system for all properties with just one tap. See the screenshots below this text for details. Unit conversions will 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.
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Become a better engineer! Stop wasting your time on pointless busy work! Complete your calculations more quickly and accurately. Designed by an engineer, for engineers, StemFox has all the tools you need: Calculator STEM homework is technical and demanding. Accordingly, StemFox includes a calculator able to handle the most complex equations. From trigonometry to Bessel functions, StemFox has you covered! ・More than 80 mathematical functions. ・Quick reference to common basic scientific functions and operators. ・Quickly and easily copy and paste values. ・Quickly reference calculations in all parts of the app. ・Reference previous calculations via the ans(x) method. ・Prettyprint formatting of calculations. Textbook Companions Homework is an important portion of education. Entering equations into your calculator is not. Yet, this tedious error prone activity takes up a significant portion of homework time. Enter StemFox Textbook Companions. Textbook Companions contain references to a textbook’s equations and tables. Equations: ・Equations are referenced by number and name/description. ・Equations are searchable and divided into chapters for quick reference. ・Equations are solvable for any variable. Enter the known variables, and solve for the unknown one. ・Avoid error prone calculator entry. ・Avoid the errors and tedium of entering variables multiple times in the same equation. ・Decreases calculation time by as much as 90% over entering the entire formula yourself! Tables: ・Quickly lookup table values. ・Fast, easy, accurate, table linear interpolation. ・Copy and paste values with a simple tap, no transcription errors! Yay! Unit Converter Unit conversion is a common STEM activity. To speed up this irritating activity, StemFox offers the most comprehensive scientific unit converter available! ・More than two dozen separate units and nearly 300 individual conversions available. ・Tap to copy, tap to paste. SUBSCRIPTION INFORMAITON: • Subscribe on a monthly or annual basis to receive Unlimited Daily Solutions for the duration of the subscription. • Payment will be charged to iTunes Account at confirmation of purchase. • Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period. • Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. • Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Setting after purchase. • Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription, where applicable. Terms of Use: http://stemfox.io/index.php/eula/ Privacy Policy: http://stemfox.io/index.php/privacy-policy/
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International Steam Tables VS.
StemFox Scientific Calculator

December 19, 2024