Simulation of Thermal Building Behaviour in Modelica

Abstract

During the past decades heating and air conditioning systems were usually designed and consequently oversized according to simplified, mostly static calculating procedures. The increase in primary energy costs, rising cost pressure felt by private and public clients as well as increased demands on comfort forced engineers to change the customary procedure. Thus the dynamic simulation of building and system behaviour plays an increasingly important role in planning and dimensioning heating and air conditioning systems. This change is supported by the growing performance of personal computers in use. This means that calculating methods which used to be too expensive and time-consuming became practicable and could even be improved.