Building Energy parametric optimization / collaboration
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This document discusses using a collaborative "knotworking" approach in the early design phase of construction projects. It describes a case study of using parametric energy simulation to optimize building energy usage. Key points: - Knotworking involves workshops with various experts to solve targeted problems, allowing collaboration even without integrated project delivery contracts. - A parametric energy simulation was conducted using a spatial building model, automatically generating walls and windows to test multiple envelope variations and optimize energy consumption. - Over 2000 simulation cases per hour allowed analyzing different parameter combinations like wall types and window sizes to identify realistic starting points for the next design phase.
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Building Energy parametric optimization / collaboration
- 1. Collaborative approach, knotworking in early design phase Case ”Parametric Energy Simulation” 02.12.2014 Tero Järvinen, BIM Manager VI Project Manager's Day, Tallinn University of Technology MEP Design, Tero Järvinen
- 2. Granlund Oy Finland Consultancy • 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
- 3. 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– Combiedmodels– LightingSimulations- Designer MagiCAD Solibri Navisworks 3ds Max MEP Design, Tero Järvinen Technical Analysis ManagementConsultancy Special Calculations Carbon Footprint Datacenters Enviroment CMMS Software Due Diligence Energy Efficiency Facility Management Management and Supervision
- 4. MEP Design, Tero Järvinen Contract Philosophy Process IPD Alliance Partnering BIMLean Construction Requirements Concept Detail Construction Commissioning Maintenance Cornerstones of construction project Tools
- 5. 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)
- 6. 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 / building owner have an interest to think differently Rule of Thumb –method (2014)
- 7. Process MEP Design, Tero Järvinen
- 8. 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
- 9. 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 alternativesolutions 7. Chosen calculation to basis of CAD- system calculations SQL IFC MEP Design, Tero Järvinen
- 10. 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 IFC SQL Requirements Concept Detail Construction Commissioning Maintenance
- 11. Energy analysis in different phases
- 12. Knotworking MEP Design, Tero Järvinen
- 13. 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
- 14. 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
- 15. Knotwork –session Case: sustainable building shape Target Setting – Discussion – Work – Discussion – Work – Result - … MEP Design, Tero Järvinen
- 16. MEP Design, Tero Järvinen Picture: Tietoa Finland Oy / RYM Oy, Model Nova Information Exchange SpeechCharts Models Text, pictures… etc. Messages
- 17. 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 …
- 18. Parametric Energy Simulation MEP Design, Tero Järvinen
- 19. MEP Design, Tero Järvinen Process and technology leap in Energy Simulations
- 20. 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
- 21. 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: Riuska Granlund Optimization Requirements Concept Detail Construction Commissioning Maintenance
- 22. We are not seeking exact Energy Consumption, but differencies among them 0 10 20 30 40 50 60 70 80 90 100 Total energy Electrical Heating Building 1 Building 2 Building 3 %, max. consumption
- 23. Don’t forget Indoor Air Quality Targets
- 24. IFC model with spaces Creating walls and windows in Simulation software Setting up Parametric values Parametric Simulation Exporting results to cloud Showing results from cloud Process for parametric Energy Simulation in phase 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 multiple parameters in Knotwork –session, Realistic values for startingpoint of next design phase
- 25. Parametric Energy Simulation Demo MEP Design, Tero Järvinen
- 26. Meilahden potilastorni, 1.kerros MEP Design, Tero Järvinen Thanks, questions?Thanks, questions?