On the Conflation of Contaminant Prediction within

Whole Building Performance Simulation

byAizaz A Samuel

Indoor Pollutants

Importance:

Health

Productivity

Comfort & Odour

Chemicals released from building materials and furnishings

Outdoor air pollutants

Bacteria, Moulds and Mites

Chemicals from cleaning products

ETS

Radon from soilFumes from paints and solvents

Animal danderand hair

Combustion products

Aerosols, mothballs etc

Asbestos from pipe insulation

Overview of Simulation Strategies

(A) Network Air Flow BasedComputational Fluid Dynamics

(B) Integrated vs Standalone

Buildings and related Energy Systems

Building Systems

PlantControl

Smart Materials

& Renewables

OthersIntra room air movement

Inter room air movement

Fabric conductionElectrical flow

Shading

Longwave radiation exchange

Shortwave radiation

Acoustics

Light flow

Moisture flow Convection

Contaminant flow

Fluid flow

Thermal processes

Electrical flow

Combined heat & power

Phase change materials

Ducted wind turbines

Photovoltaics

ClimateSky model

Construction materials

GlazingOrientation

Terrain

Integrating Contaminant Simulation within Thermally Coupled Network Air Flow

Network Air Flow Thermal & PlantSimulation

Air Flow Information

Contaminant Flow Model

Bsim (thermal, flow, lighting, HVAC etc.)

ComputationalFluid Dynamics

Contaminants Flow Modelling

Integrating Contaminant Simulation within Thermally Coupled Network Air Flow and CFD

Conclusion

Applications: CO2 controlThermally integrated contaminant flow modellingDouble facade modelling using CFD and network mass

flow

Usage: Menu driven GUIExtensive helpExemplar modelsAt least one international project

Training: Workshop at international building simulation conference

Used as training exercise at Postgraduate level

Publications: A number of research papers