What are fluids and how are they used in Polysun?
Polysun was designed so as to allow users to create the desired system layout by means of the available components. The first step of the simulation foresees hence a careful analysis of the system layout. The process includes in the sequence the identification of fluid domains and subsequently the identification of fluid loops. Definition: The term Fluid refers to the fluid that circulates the different components and transports energy. As fluids often contain different substances Polysun includes a catalogue of main fluid components showing the pure substances (like, for example, water, ethylenglycol, propylenglycol) as well as a fluid mixture catalogue showing the fluids that are actually employed (like, for example, potable water, ethylene mixture, propylene mixture). Definition: A fluid domain is a continuous hydraulic area permeated by a common fluid. A system typically consists of several different fluid domains. System components belonging to a defined fluid domain are circulate
