Performance Framework Tool

James O’Donnell, Edward Corry and Magdalena Stukan

Galway, 03/07/2009

2Short Overview

• Scenario Model Description

• Detailed Scenario Model Requirements

• Proposed Domain to IFC Mapping

• Tool Objectives

• Tool Interface

• Development Status

• Additional Information

3ITOBO Relevance

4Scenario Model

5Detailed Sub Scenario

Gymnasium Zone Temperature is Reduced by 2C

Energy Consumption

Building Objects

Performance Aspects

Chiller

Qualitative Performance Objectives

Quantitative Performance

Metrics

Datum 1: Water Mass Flow Rate (l/s)

Datum 3: Water Return Temperature (C)

Datum 2: Water Flow Temperature (C)

Datum SourcesFormulae

Optimise OutputChilled Water

OutputDatum 1*Constant* (Datum 3- Datum 2)

TemperatureBuilding Function

Maintain Temp Setpoint

Gymnasium Zone

Temperature C

Temperature C

Simulation Model Output

Measured Readings

Simulation Model Output

Datum 1: Water Mass Flow Rate (l/s)

Datum 3: Water Return Temperature (C)

Datum 2: Water Flow Temperature (C)

Measured Readings

6Required IFC Objects

IRUSE Object IFC ObjectPortfolio IFCProject

Site IFCSite

Building IFCBuilding

Building Storey IFCBuildingStorey

Zone IFCZone

HVAC System IFCSystem

HVAC System Component Numerous IFC definitions

Scenario IFCProject

Performance Aspect IFCSystem

Performance Objective IFCPerformanceHistory

  IFCPerformanceObjective

Performance Metric IFCPerformanceMetric

Measurement Stream To be Defined

Sensor IFCSensorType

  IFCDistributionControlElement

Unit IFCMeasurewithUnit

7Tool Objectives

• Create a performance framework to enable life cycle documentation and evaluation through scenario models;

• Store the developed scenario models in IFC format;

• Enable access to the 'updated IFC based BIM and linked Data Warehouse' through customised 'Building Manager user interfaces'.

8Tool Environment

9User Interface Screenshot

10Development Status

• Alpha Version Developed

• Minor Debugging in Process

• Investigation of IFC 2x3 schema options (80%, The suggested solution requires validation expert)

• Completed Tool due date: August 31st 2009

11Appendix

Additional Information

12

ScenarioIFCProject

Performance AspectIFCSystem

Building Object Many IFC Definitions

IFC RelAssignsToControl

IFC Performance History

IFC RelAssiociatesConstraint

IFC Performance Objective

IFCConstraintRelationship

IFC Objective IFC Objective

IFC Objective

IFCConstraintRelationship

IFC Objective IFC Objective

IFC Metric

IFC Table

IFC Metric IFC Metric IFC Metric

IFC Time IFCTimeSeries IFC MeasureWithUnit

IFC RelAssiociatesConstraint

IFC DistributionControlElement

IFCRelDefinesBy

IFCSensorType

IFCMeasurementStream

LegendRequires Validation

IFC Relationship

IFC Class

IFC Sensor Definition

Proposed Scenario Model Relationships

12

IfcRelAggregates

IfcRelConnectsElement

13Proposed Sensor Relationships

13

IFCEnergyConversionDevice

IFCRelDefinesBy

IFCBoilerType

IFCDistributionControlElement

IFCRelDefinesBy

IFCSensorType

IFCRelConnectsElements

IFC RelAssiociatesConstraint

IFCMetric

IFCRelContainedInSpatialStructure

IFCSpace

IFCRelAggregates

IFCBuildingStorey

IFCRelAggregates

IFCBuilding IFCRelServicesBuilding

IFCSystem

IFCRelAssignsToGroup

IFCRelServicesBuilding

IFCElectricalCircuit

IFCRelAssignsToGroup

IFCConstraintRelationship

IFCObjective

IFCConstraintRelationshipIFC

RelAssignsToControl

IFC Performance History

IFC RelAssiociatesConstraint

IFC Performance Objective