2014 KA Minutes of the Workshop

2nd Workshop CityGML EnergyADE - Karlsruhe, 30th of October 2014

• Host: EIFER Karlsruhe, Germany
• List of participants

Next Steps - TODO List

WHAT	WHO	WHEN
Provide Feedbacks on the current UML Schemas (see Community Portal)	ALL participants	Nov 2014
Finalize the ADE Energy UML Schema, based on the different Feedbacks	HFT (Bruse, Nouvel)	1st week Dec 2014
Write ADE Energy XSD Schema	EIFER (Nichersu), CSTB (Tournaire)	Dec 2014
Implement XSD Schema in Simulation tool/platform Write test CityGML file	RWTH Aachen, EPFL, SINERGIS, CSTB, TUM, HFT	Jan - Feb 2015
Start simulation based on test CityGML file Iterative process with feedbacks	RWTH Aachen, EPFL, SINERGIS, CSTB, TUM, HFT	Mar - Apr 2015
Come to next workshop with results	ALL participants	Mar - Apr 2015

Presentations and Minutes

TOP 1: ADE Energy, Motivations and requirements Jean-Marie Bahu (EIFER Karlsruhe) Presentation: Energy ADE Workshop - Introduction

TOP 2: Energy Aspects of the INSPIRE Building Model Dr. Gerhard Gröger (University of Bonn - Geoinformatics) Presentation: Energy Aspects of the INSPIRE Building Model Discussion: Overlapping risks between ADE INSPIRE and ADE ENERGY R. Nouvel: is there some risks of redundancy between the ADE INSPIRE developped currently (in particular by Mr. Kolbe) and our ADE ENERGY? >>> J. Benner: There is no semantic or low-level semantic overlap between them.

TOP 3: Material module for ADE Energy Joachim Benner and Karl-Heinz Haefele (KIT Karlsruhe) Presentation: Proposal of a Material Extension for the EnergyADE Discussion: Specific Window Object K.H. Haefele: Window may be considered as a generic construction. Is an additional window model required? >>> M. Lauster: For dynamic energy simulation, a specific window model, including window shading and window opening is actually needed. Consideration of costs K.H. Haefele: Should be “cost” taken into account in UML? How it should be integrated? (All costs are here considering, including financial costs, grey energy, emission cost needed etc.) >>> R. Nouvel: Cost information is not specific to materials. Therefore it should not be part of the material ADE. Maybe later a Costs ADE could be developed M. Petit: in costs, currency and unit parameters could be combined in a unique parameters. Consideration of indoor air quality Same consideration that for costs. This is not specific to materials. Material texture / visualization K.H. Haefele: there are some risks that the texture displays in an uncorrect orientation. Should we add an explicit visualization information? Material Thickness R Nouvel: In the current ADE Materials version of KIT (like in gbXML), Thickness is part of the material parameters. In most simulation models and some international formats (ifc), thickness is associated with layers while materials contain only parameters proper to it (conductivity, volumetric capacity etc.). Could we rather consider this modelling way.

TOP 4: Building Physics module Romain Nouvel (HFT Stuttgart) Presentation: Report of the Activities of the Building Physics Group

TOP 5: Occupancy module for ADE Energy Jean-Marie Bahu (EIFER Karlsruhe) Presentation: Report of the Activities of the Building Occupants Group Discussion: Schedules L. Giovanni: What represent the occupancy schedules? >>> J-M.Bahu: occupancy schedule is a normalized schedule (0 to 1: 1 corresponding to the maximal indicated person number) representing the presence of the occupant in a zone/building. It is important in particular to calculate the intern gains P. Riederer: What is the purpose to integrate occupancy and indoor climate set-point schedules in the CityGML file? This file is going to be very heavy? >>> R. Nouvel: Hourly schedules are necessary inputs for the dynamic simulation. A possibility would be to use external links in order to connect CityGML file with an external database with hourly values. ACTION (Nov. 2014): R. Kaden (TU Munchen) will share his model of Time-Depending Data Type on the Wiki. After discussion and finalization, this model will be used for the schedule definition.

TOP 6: Energy System module for ADE Energy Romain Nouvel (HFT Stuttgart) Presentation: Report of the Activities of the Energy Systems Group Discussion: Standard parameters of Energy Systems Someone: Which energy system parameters should be standardized in the ADE Energy? >>> R. Nouvel: This is a trade-off between restrictive general information data and very detailed (and less used) information data. Each ADE Energy participants should specify which parameters, among those they use to model energy system, could be of interest for another model of the same energy system.

TOP 7: Metadata module for ADE Energy Volker Kraut (M.O.S.S. Taufkirchen) Presentation: Report of the Activities of the Metadata Group ACTION (until next workshop): All participants of the other Working groups should supply a list of required metadata for specific parameters.

Open discussion and next step definition

• ADE Energy implementation form

Three different forms of ADE Energy implementation were brought up: 1- a uniform ADE Energy, integrating all developments of the WG 2- a mandatory ADE Energy core on one side, and on the other side an optional extended ADE Energy (inspired from the Core3D and Extended3D from INSPIRE) 3- an ADE Energy core linked to several ADE Energy modules corresponding to different attributes categories (i.e. time-series, material, occupancy and energy systems).

The last scenario was accepted. The ADE Energy core correspond to the Building Physics Module, which sets a data structure to link the different modules. The ADE Energy modules will be integrated in the same UML schema ADE Energy, in modular way. Some later extensions of each of this module outside the "Building Energy" theme will be possible (e.g. later creation of a ADE Materials or ADE Occupancy).

• Levels of Detail covered by the ADE Energy

J.M. Bahu prefered to focus first on the main application of this ADE Energy: the building modelled in LoD2.
R. Nouvel reported that the ADE Energy has been from the beginning developed as flexible as possible, potentially compatible with all CityGML Levels of Details (LoD1 to LoD4). Then he suggested to define a UML schema covering all LoDs, and wait for some feebacks from the test phase.
This last proposition found finally consensus.

• Window definition

RWTH and HFT Stuttgart suggested to define a semantical window object (related to a shading object) in a similar way that for ThermalBoundarySurface. Without LoD3 or more, the position of the windows is unknown, only the window surface area is relevant.