A steady-state simulation of a cooling system is described. The simulation has been carried out using an algorithm, implemented in Turbo Pascal, which allows the system parameters to be changed, or the output to be modified easily. A computer program, called CCSim, has been developed and is currently being extended to cover other systems likely to be encountered in practice. Turbo Vision, the screen-menu design routine of Turbo Pascal, has been employed to enhance its user-friendliness. A case study, whose output has been checked using IMSL-FORTRAN routines, is presented.