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Hans ErhornAdeline 2.0 - Using Computer Tools to Evaluate Daylighting and Electric Lighting Applications in Buildings Jürgen Stoffel Michael Szerman Fraunhofer-Institut für Bauphysik (IBP) Nobelstraße 12 70569 Stuttgart, Germany Abstract In practical applications, design and calculation procedures known in daylighting engineering to date frequently suffer from shortcomings in evaluating innovative and complex daylighting systems. Such conventional methods are particularly insufficient when it comes to predicting how these systems will actually affect a building's thermal and energy performance. Thanks to novel computer programs such as Adeline 2.0 (Advanced Daylighting and Electric Lighting Integrated new Environment) it is now possible to simulate complex daylighting systems, too. Adeline 2.0 enables lighting designers, architects and engineers to predict not only visual properties of daylighting and electric lighting systems, but also their impact on the overall energy performance of a building. They allow to analyse the interaction between natural and artificial lighting to estimate the amount of energy possibly to be saved by the use of daylight. The user may choose from several simulation programs which can be used in different stages of the design process. All of these programs are integrated under a uniform graphical interface which has been strongly improved compared to version 1.0.
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