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URBEM is an interdisciplinary cooperati on bet ween the Vienna University of Technology and Wiener Stadtwerke. One of the key elements is to find a proper sim ulation environment to si mulate the effects of different ur ban development strategies (e.g. 2020, 2030, 2050) focusing on al l buildings, the entire district heating and cooling grid as well as th e whole gas and electricity grid within a district or even the entire city. The aim of this research is to find a validated method to create load profiles in terms of scalable density function for individual buildings and building neighborhoods regarding the heating, cooling and electricity demand with respect to certain building use cases, thermal qualities, construction year, HVAC-systems and even the influence of lifestyle asp ects. This paper demonstrates a new approach how to im plement buildings and their characteristics into a new developed urban simulation environment. Du e to special requirements on the urban simulation environment, conventional building simulation tools are not capable in terms of time efficiency, interoperability and connectivity to deal with those particular initial parameters to run the entire simulation environment. By using density functions only th e input of a certain urban development scenario, that is going to be investigated within the URBEM an d the quantity of buildings, is needed to generate aggregated, location and time dissolved heating load curves. By comparing the results with a detailed simulation, the range of the relative deviations performs by +/-1.5%, which is an accurate and sufficient result for using scalable density function within the URBEM simulation envi ronment.

A new approach to simulate buildings and their crucial characteristics in a comprehensive urban simulation environment