Modelling System Flows in Building and City Design

verfasst von

Philipp Florian Geyer, Martin Buchholz

Abstract

Buildings and cities have major part in global energy consumption. This calls for a performance-oriented approach of the design of buildings and cities to reduce their environmental impact. Therefore, the paper proposes Parametric Systems Modelling (PSM) as a tool for supporting a multidisciplinary performance-oriented design process of building and cities. The method is based on the Systems Modelling Language (SysML), which is a diagram-based modelling tool universally serving in systems engineering and which has its roots in software engineering. The transfer to the building domain is intended for design, evaluation and optimization of buildings and cities as systems. The approach exceeds the approach of geometric parametric modelling, extends it by physical and technological information. Thus, it provides a basis for multidisciplinary analyses and simulations. Its application aims at the generation and exploration of innovative sustainable design solutions at system level.
The first part introduces the PSM method that bases on the Systems Modelling Language (SysML) and illustrates it by a simple example from the building domain. The PSM method includes at its current development state seven model types represented in form of different diagrams: (1) use case diagrams, (2) requirement diagrams, (3) block definition diagrams, (4) activity diagrams, (5) internal block diagrams, (6) simple parametric diagrams and (7) parametric diagrams extended by measures of effectiveness (moe). These types serve for a design-oriented and requirement-driven generation of the system.
The next part reports from the development of an innovative sustainable build-city system, which was supported by PSM. An emphasis is set on the modelling of energy, water and biomass flows. On the one hand, this illustrates the capabilities of the method for performance-oriented design modelling of buildings and cities; on the other hand, it serves to present an innovative design solution and to show the use of renewable energy, water and biomass recycling in the local urban environment.
To sum it up, the application of Parametric Systems Modelling is intended for supplementing the geometry-based CAD / CAAD to provide a modelling environment that allows the multidisciplinary parametric system-based description of the design artefact. The aim is to provide an environment that allows the modelling of multidisciplinary interdependencies for performance-oriented design simultaneously with geometric modelling. The developed PSM method is basis for this environment. Further development of the research includes prototypical implementation of a PSM editor integrated with a parametric CAD environment.

Externe Organisation(en)

Technische Universität München (TUM)
Technische Universität Berlin

Typ

Aufsatz in Konferenzband

Seiten

823-828

Publikationsdatum

2011

Publikationsstatus

Veröffentlicht

Ziele für nachhaltige Entwicklung

SDG 7 – Erschwingliche und saubere Energie, SDG 11 – Nachhaltige Städte und Gemeinschaften