【實用書籍app】Steam|最夯免費app

Steam calculates the thermodynamic properties of water and steam for subcooled (compressed liquid), saturated, superheated, and supercritical conditions.

Use Steam in the field and in the classroom to replace tedious interpolation of steam properties from printed steam tables.

Steam includes both the 1997 and 1967 industrial formulations for property calculations. Although the 1997 formulation has been available for over 10 years, most heat balances and textbooks still use the 1967 formulation.

Select one of the functions:

P,T - pressure and temperature

P,h - pressure and specific enthalpy

P,s - pressure and specific entropy

P,x - pressure and steam quality

T,x - temperature and steam quality

to calculate:

Specific enthalpy

Specific entropy

Specific volume

Specific heat capacity (isobaric)

Specific internal energy

Density

Saturation temperature

Quality

Saturated liquid and saturated vapor properties

Switch instantly between imperial (psia, F, Btu/lbm, etc.) or metric (kPa, C, kJ/kg, etc.) engineering units. You choose the metric units for pressure (kilopascal, megapascal, bar, atmospheres, millimeters of mercury, or kiloponds/cm2), temperature (C or K), energy (kilojoules, kilocalories, or kilopond-meters) and specific volume (cubic meters/kg or liters/kg). Tap the 'i' button to access the metric units setup screen.

For saturated and two-phase conditions, saturated liquid and saturated vapor values are calculated. If appropriate for a particular property, the delta from liquid to vapor is also calculated. For example, the heat of vaporization (hfg) is calculated for specific enthalpy.

Select either the IAPWS Industrial Formulation 1997 for the Thermodynamic Properties of Water and Steam (IF97) or the 1967 IFC-Formulation for Industrial Use (IFC-67).

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