2018 04 03 Task 3 Coordination Meeting

Task 3 Coordination Meeting

Date: April 3, 2018, 5pm CET/German time (UTC+1)

Building perspective: Presentation of first draft of common exercise document which focuses on the buildings (by Ina)
- 16 identical buildings were modelled in the IDEAS library and the simulation results were reported
  - The exact workflow as well as an overview of the simulation results can be found in the README-document on the following repository: https://github.com/ibpsa/project1/tree/master/wp_3_2_destest
  - To ensure an efficient meeting and a clear communication, could everyone please read this document by Tuesday April 3rd?
- Discussion
  - On the current district (layout and data format)
  - On the following steps
System perspective: Discussion on the systems: definition of thermal network (Felix)
- Layout
- Specification needed, …
Schedule for common exercise + commitment (relate to perspective)
Repeat call to provide information on what research questions are to be solved
- ==> results in multiple use cases that the DES test has to tackle
Next meeting

Join Skype Meeting
Join by phone
- +3216379898 (Heverlee) Dutch (Netherlands)
- +3216379897 (Heverlee) English (United States)
Conference ID: 321261

Alessandro, Annelies, Ina, Artem, Christoph, Konstantin, Dirk, Felix, Bram (notes)

Documents discussed by Ina can be found here.

Buildings in SketchUp and extracted CityGML model (using FME)
CityGML contains all
- geometry
  - Area, volume, ...
  - Day and night zone
- construction year
- U values
Standard occupant ISO13790
Then simulate
More info (such as all building elements, their layers and materials + day zone and night zone) in SimpleDistrict.teaserXML
- View in NotepadXML
Who will model the heat demand from a building perspective?
- Alessandro (Buildings/IBPSA)
- Konstantin & Ina (IDEAS)
- Peter (AixLib)
Better to have contributors use several libraries to be able to compare. Alessandro will start in IBPSA library. If more time is available, multiple libraries can be tested by the same contributor.
Further questions may be directed to Ina
Dirk: Is the definition of all 16 buildings separate?
- All parameters are the same, but they are still separate entities
Layout and data format are clear
Schedule: 5-6 weeks feasible?
- Main challenge in translating data into simulations
- Goal: First comparison of the outcome
- --- Mid-May is decided as deadline for comparing results ---

two or three typical layouts
Buildings library, but parameters will be specified
- all properties and dimensions will be supplied separately
Next step:
- Have a look at losses
- Have a look at pumping power
- Ramp up from that
- Couple simulations?
- Contributors:
  - Felix (makes suggestion for lay-out)
  - Annelies & Bram
  - Peter?
  - Others if interested
- Ground specifications? Kasuda model is often used
  - Start with fixed temperature
- Deadline: in 5 weeks
  - Thermal network description week before next meeting such that contributors can prepare
  - With assumptions (sophisticated), but automatization would be nice

Konstantin gives an update: optimization code is running, but results are currently off.
Massimo is contacted for other insights