ABSTRACT
This chapter presents what a future environment for building system modeling and simulation may look like. As buildings continue to require increased performance, more flexible load shifting, better integration of renewable energy and waste heat sources, and better comfort, their energy and control systems are becoming more integrated and complex. The chapter focuses on the modeling, simulation and analysis of building energy and control systems. Such systems can be classified as heterogeneous systems because they involve multiple domains, such as thermodynamics, fluid dynamics, heat and mass transfer, electrical systems, control systems and communication systems. The translation of mathematical models into a simulation program can be fully automated. When translating a model, symbolic processing is important to reduce computing time since many building system simulation problems lead to large, sparse differential algebraic equation systems. Equation-based object-oriented modeling and simulation environments have been applied successfully in numerous demanding industrial applications.
