![]() Third, compiled functions and procedures, written in a high-level language such as Pascal, C, or FORTRAN, can be dynamically-linked with EES. Functions, procedures, modules, and subprograms can be saved in library files that are automatically read in when EES is started. Second, the EES language supports user-written functions, procedures, modules and subprograms.įunctions and procedures are similar to those in Pascal and FORTRAN in which assignment statements rather than equalities are employed.ĮES modules and subprograms are callable EES routines that use equalities. EES also allows the user to add functions in three ways.įirst, a facility for entering and interpolating tabular data is provided so that tabular data can be directly used in the solution of the equation set. Library of mathematical and thermophysical property functions. Transport properties are also provided for all substances.Īn extensive heat transfer library, developed in conjunction with the book Heat Transfer is provided in addition to the built-in Air tables are built-in, as are psychrometric functions, JANAF data for over 1200 substances,Īnd property data for hundreds incompressible solids and liquids including heat transfer fluids and brine solutions. Similar capability is provided for most refrigerants, ammonia, methane, carbon dioxide and many other fluids. Second, EES provides many built-in mathematical and thermophysical property functions useful for engineering calculations.įor example, the high accuracy steam tables are implemented such that any thermodynamic property can be obtained from a built-in function call in terms of any two other properties. First, EES allows equations to be entered in any order with unknown variables placed anywhere in the equations ĮES automatically reorders the equations for efficient solution. ![]() There are several major differences between EES and other equation-solving programs. ![]()
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