Building Integrated Heating Systems

This paper presents the preliminary modelling perspectives of an ongoing project where a flexible simulation tool for component and system analysis of district heating consumer installations is developed. The simulation tool makes it possible to simulate district heating consumer installations containing water based central heating systems, domestic hot tap water systems, buildings as well as load predictions of the systems. The main purpose of the project is to improve the inter action of the system components, decrease the energy consumption and analyze the performance of the heating system and the relation between the building and the heating system, Building Integrated Heating System. This is done with emphasis on increasing the system performance of the district heating system. The paper presents the modelling approach with main emphasis on lumped parameter modelling using statistical methods. Some prior results are discussed and illustrated through examples, including analysis of the heat dynamics of a building and a new approach on handling discontinuities exemplified in the modelling of the transient flows pipes.