building energy parametric optimization / collaboration

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


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


Technical Analysis

Management Consultancy

Special Calculations

Carbon Footprint

Datacenters

Enviroment

CMMS Software

Due Diligence

Energy Efficiency

Facility Management

Management and Supervision


Contract

Philosophy Process

IPDAlliance

Partnering

BIMLeanConstruction

Requirements

Concept

Detail

Construction

Commissioning

Maintenance

Cornerstones of construction project

Tools


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)


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 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


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


Energy and Comfort simulations


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


It is not realistic to expect having IPD or Alliance Contract in every project


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


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 - …



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


•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



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.


Optimization of Energy usage


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


Meilahden potilastorni, 1.kerros


Thanks, questions?Thanks, questions?

building energy parametric optimization / collaboration

Engineering