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The ASHRAE South Brazil Chapter and IBPSA-Brasil are launching in partnership the second edition of the Building Performance Simulation Conference. The event will be held online on May 31st and June 1st, in two 45-min sessions, followed by questions and answers.
Monday - May 31st, 2021 8:30AM (BRT)
Topic: Simulations for decision-making in the built environment
Tuesday - June 1st, 2021 8:30AM (BRT)
Topic: Building Performance Simulation – mind the gap
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About the topics:
Simulations for decision-making in the built environment
This presentation discusses three approaches of using simulations for decision-making in the built environment. The first one provides illustrations about how simulations can be used to explore site opportunities and constraints in regeneration projects, through examples related to the urban scale. The second approach refers to how multi-domain simulations are organised around an explicit decision-making strategy to support the regeneration of the primary function of a complex building type. The third approach shows examples of how simulations and digital data can be used to represent the voice of the people in regenerating buildings, communities and cities. The emphasis in regeneration is a provocation for us to debate the role of simulations in decision-making for mitigating environmental destruction and climate change and for fighting inequalities, some of the common goals which are part of the UN blueprint to achieve a sustainable future for all.
Building Performance Simulation – mind the gap
The energy performance gap refers to the difference between expected (during design) and actual energy performance of buildings. There is significant evidence to suggest that this gap is getting larger as buildings become more energy efficient. There appear to be three kinds of reasons for the energy performance gap. The first is misinterpretation of regulatory compliance calculations as predictions of in-use energy consumption. The second kind is related to issues with the actual operation of the building (services), such as undetected faults and non-optimal controls. The third kind has to do with discrepancies between design stage assumptions and reality during operation of the building. Examples of the latter kind are incorrect assumptions regarding actual occupant behavior, on-site weather data, unregulated sources of energy consumption (e.g. plug loads, server rooms, external lighting), and performance of innovative building components. The presentation will discuss and illustrate the first and second kind in some detail, but the main focus will be on the third kind. The presentation will also argue and demonstrate that it is often more effective and efficient to get better assumptions rather than to use more complex simulation models. The presentation will finish with a brief introduction of the use of simulation models during the operation of buildings; e.g. as a digital twin for fault detection and diagnosis or for (model based) control optimization. Where appropriate, the presentation will highlight ASHRAE’s achievements and ongoing efforts in these areas.

31 de maio de 2021 11:30:00

Mon May 31 2021 11:30:00 GMT+0000 (Coordinated Universal Time)

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