building energy parametric optimization / collaboration
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Collaborative approach, knotworking in early design phase
Case ”Parametric Energy Simulation”
02.12.2014
Tero Järvinen, BIM ManagerVI Project Manager's Day,Tallinn University of Technology
MEP Design, Tero Järvinen
Granlund Oy FinlandConsultancy
• MEP Design• Facilities Management• Energy and Sustainability
Software• Manager– Facilities Management• Designer – MEP Design• RIUSKA – Energy Analysis• BSPro – IFC middleware
Numbers• ~515 person, 43 MEUR (2013)
• R&D 3,5 MEUR / 41 personyears
MEP Design, Tero Järvinen
Integrated Enviroment
Requirement Management–
Comfort simulation–
Energy simulation –
Cost analysis–
Life cycle–
CFD –
Maintenance -
Roomex
Riuska
Riuska
Lifest
BSLCA
Ansys
Manager
Equipment data–
MEP modeling–
Model Auditing–
Combied models–
Lighting Simulations-
Designer
MagiCAD
Solibri
Navisworks
3ds Max
MEP Design, Tero Järvinen
Technical Analysis
Management Consultancy
Special Calculations
Carbon Footprint
Datacenters
Enviroment
CMMS Software
Due Diligence
Energy Efficiency
Facility Management
Management and Supervision
MEP Design, Tero Järvinen
Contract
Philosophy Process
IPDAlliance
Partnering
BIMLeanConstruction
Requirements
Concept
Detail
Construction
Commissioning
Maintenance
Cornerstones of construction project
Tools
MEP Design, Tero Järvinen
Current state of BIM in Finland (1/2)
• BIM is widely accepted and a normal process to do design in major architect or engineering companies
• Designers have ability to use BIM in collaborative mode, but it is not a normal way to proceed
• There are ”Common BIM Requirements 2012” available, which are quite often referred in Invitation for Tenders
• Too often there is no BIM execution plan – Designers do not know usecases for modelling
• Construction site is using BIM, if General Contractor has ability to use it(In most cases they do not have ability or interest)
• BIM in FM does not exist
Rule of Thumb –method (2014)
MEP Design, Tero Järvinen
Current state of BIM in Finland (2/2)
• We are in position, where hype has been over about 3-4 years and designers in major cities have done multiple BIM projects
• We are not anymore focused to softwares, but processes and methods
• IFC is used as a normal way to share information
• Lean Construction is coming
• Only a few client / buildingowner have an interest tothink differently
Rule of Thumb –method (2014)
Process
MEP Design, Tero Järvinen
MEP BIM design
• Creating requirementsRequirements
• Alternative solutionsSchematic
• Modelling chosen alternativeDesign
• Building according the ModelsConstruction
• Utilization of ModelsCommissioning
• BIM in FMMaintenance
Target consumption
Indoor air quality
Spatial Provisions
Energy Efficiency
Network Modelling
Network calculations
Combied Models
Information content
Device Validation
Information content
Service Area Charts
Device Database
MEP Design, Tero Järvinen
Requirements management
Requirements
Schematic
Design
Construction
Commissioning
Maintenance
1. Targets for spacetypes
2. Building Model
3. Linking requirements to spaces
5. Energy and Comfort simulation
4. Service Area Zones
6. Comparisation of alternative solutions
7. Chosen calculation to basis of CAD-system calculations
SQL
IFC
MEP Design, Tero Järvinen
Energy and Comfort simulations
MEP Design, Tero Järvinen
Dynamic simulation of energy and comfort is made according to the requirements, building model and service area charts.
• Every space is simulated, usage of architectural IFC-model
• Alternative simulations and comparisations for different envelopes, windows etc. -> beginning of LCC calculations
IFCSQL
Requirements
Concept
Detail
Construction
Commissioning
Maintenance
Energy analysis in different phases
Knotworking
MEP Design, Tero Järvinen
It is not realistic to expect having IPD or Alliance Contract in every project
MEP Design, Tero Järvinen
Picture: Saku Viita-Aho
Collaborative approach can be done also in “normal” projects
Way of Action: Workshop –method
In Finnish Research Project “Rym PRE”, workgroup “Model Nova” highlighted a method: “Knotworking”
Knotworking is close cooperation between various actors and experts in connection with the design and construction process of buildings
Knotwork –session is held in a 1-2 day workshop, where people have well-aimed target which need to be solved
Knotwork –method researched/developed by Institute of Behavioral Sciences, CRADLE, University of Helsinki
Requirements management in phase of Design Brief
MEP Design, Tero Järvinen
IFC
Requirements
Concept
Detail
Construction
Commissioning
Maintenance
Software:- Cost estimation- Energy simulation- IFC-space objects
Knotwork –sessionCase: sustainable building shape
Target Setting – Discussion – Work – Discussion – Work – Result - …
MEP Design, Tero Järvinen
MEP Design, Tero Järvinen
Picture: Tietoa Finland Oy / RYM Oy, Model Nova
Information ExchangeSpeechCharts
Models
Text, pictures… etc.
Messages
Process of knotwork -session
• Knotworksession has to be well prepared and the results needs to be clearly presented to decission makers
MEP Design, Tero Järvinen
•Targets, Agenda•Who will participate•External fasilitator?
Pre -meeting
•Preliminary work•Studying process, checking software compatibility and collaboration possibilities
Self preparation •Collaborative
workshop•Double-check Targets
Knotwork –session 1
•Additional work if needed•Presentation of visual results
Homework•Will be held if needed
Knotwork –session 2
…
…
1-2h
Estimated timetables
4-8 h 3-8 h 3-5h 3-8h …
ParametricEnergySimulation
MEP Design, Tero Järvinen
MEP Design, Tero Järvinen
Process and technology leap in Energy Simulations
Using spatial model (from bim)• Normally, architectal model do not have windows in early phases
• Windows and walls can be created in energy simulation softaware to have multiple variations for example different procents (%) on windows in envelope (or window types, shadings, blinds etc.
MEP Design, Tero Järvinen
Optimization of Energy usage
MEP Design, Tero Järvinen
With parametric Energy Simulation in ”Riuska”, you can get 100-2000 (or more) simulation results of building energy consumption.
Results are viewed in userfriendly cloud service for decission making purposes – real time search for optimate solution in one meeting with people having knowledge about expences and reality of limitations
SQL
Software:RiuskaGranlund Optimization
Requirements
Concept
Detail
Construction
Commissioning
Maintenance
We are not seeking exact Energy Consumption, but differencies among them
0102030405060708090
100
Total energy
Electrical Heating
Building 1
Building 2
Building 3
%, max. consumption
Don’t forget Indoor Air Quality Targets
IFC model with
spaces
Creating walls and windows in Simulation
software
Setting up Parametric
values
ParametricSimulation
Exporting results to
cloud
Showing results
from cloud
Process for parametric Energy Simulation inphase of Design Brief
Windows are created automatically, resulting mathematically correct model(s), but not architecturally
Parameters, for example:- Walltypes- Window types- Window blinds %- Heat Recovery %- … etc.
Approx. Speed with 10.000m2 building: ~2000 cases / hour
Analysis with multipleparameters in Knotwork –session,Realistic values forstartingpoint of next design phase
ParametricEnergySimulation
Demo
MEP Design, Tero Järvinen
Meilahden potilastorni, 1.kerros
MEP Design, Tero Järvinen
Thanks, questions?Thanks, questions?
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