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Greg Allen of Sustainable Edge presents an overview on designing healthier, more energy efficient indoor environments.
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FUNDAMENTAL BUILDING SERVICES
SHELTER FROM THE ELEMENTS
• AIR • EARTH • PRECIPITATION • RADIATION • TEMPERATURE • SOUND • ORGANISMS
SHELTER FROM THE ELEMENTS
AIR: • wind • air barrier • ventilation • contaminants • conditioning • filtration
SHELTER FROM THE ELEMENTS
EARTH • Tempering • Moisture • Soil gas • Pests
SHELTER FROM THE ELEMENTS
PRECIPITATION • Water entry • Snow • Freezing • Vapour • Retention • Drainage
SHELTER FROM THE ELEMENTS
RADIATION • Solar • Daylight • Visual • EMF
SHELTER FROM THE ELEMENTS
TEMPERATURE • Heat transfer • Tolerable limits • Thermal comfort • Storage
SHELTER FROM THE ELEMENTS
SOUND • Outdoor noise • Connectivity • Acoustics ORGANISMS • Pathogens • Insects • Vermin
AMBIENT RESOURCES
SUN WIND SOIL RAIN MINERALS FLORA/FAUNA
IMPROVED INSULATION
DOW CAVITYMATE RSI 1/ 2.6 CM ASPEN AEROGEL RSI 2/ 2.6 CM
VIP AND VIG
ADVANCED GLAZING
THERMAL COMFORT
THERMAL COMFORT
PSYCHROMETRICS
CONVENTIONAL SYSTEMS
• VARIABLE AIR VOLUME SYSTEM
CONVENTIONAL SYSTEMS
• TERMINAL REHEAT, CONSTANT AIR VOLUME
CONVENTIONAL SYSTEMS
• DUAL DUCT SYSTEM
CONVENTIONAL SYSTEMS CONVENTIONAL SYSTEMS
CONVENTIONAL SYSTEMS
PERIMETER INDUCTION CHILLED BEAM
CURRENT BEST PRACTICE
• DEDICATED OUTDOOR AIR SUPPLY • 100% OA WITH RADIANT HEAT/COOL
CURRENT BEST PRACTICE
DISPLACEMENT VENTILATION UNDERFLOOR SUPPLY
CURRENT BEST PRACTICE
AIR COUPLED THERMAL MASS
CURRENT BEST PRACTICE
DISPLACEMENT VENTILATION
LOW E CEILINGS
CURRENT BEST PRACTICE
• DUAL DESICCANT ERV
LIQUID DESICCANT COOLING
VAN ZYL 2 CYCLE USES CaCl2 @ COP >2
CURRENT BEST PRACTICE
EMERGENT PRACTICE
• BIOFILTRATION
EMERGENT PRACTICE
• CO2 CAPTURE CARBONIC ANHYDRASE ALGAE PRODUCTION
PASSIVE HEAT AND COOL
NIGHTSKY COOLING + MASS
DISPLACEMENT VENTILATION
EARTH TUBE + HEAT RECOVERY
Displacement Ventilation
Price PTU 2008
• Outdoor Air requirements (ASHRAE Standard 62-2004) – Requirement =
(Occupant/Space Requirement)/(Ez)
– OHAD = 100/1.0 = 100 CFM – DV = 100/1.2 = 80 CFM
• 20% Savings on OA requirements
Ventilation Effectiveness
Source ASHRAE
DV Characteristics
• Measure of Contaminants in Occupied Zone compared to Return Air
• Mixed Systems < 1.0 • DV Systems > 1.0 • Potential Reduction for
outdoor air requirement under ASHRAE 62-2004
Ventilation Effectiveness
Occupant
Exhaustc C
CE =
DV Characteristics
• New research into Healthcare and DV – Show applications in patient rooms, waiting areas, admittance, non-
critical care spaces • Superior comfort levels • Improved contaminant removal
– Significant reduction in infectious transmission through airborne containments
Applications Healthcare
HEALING PLANTS
FAN ENERGY REDUCTION
MANITOBA HYDRO HQ
WATERLOO ARCHITECTURE BUILDING
SUPERIOR ENVELOPE INTERSTITIAL BLINDS MAGBOARD SIP
TRACKING PV SHADING
TRANSLUSCENT NANOGEL
LIGHT PENETRATION
LIGHTENING THE LOAD
GLARE-FREE TASK LIGHTING
HIGH QUALITY LED LIGHTING
ACOUSTIC QUALITY
THE SILENT TREATMENT
SOUND ADVICE
THE WORLD IS IN YOUR HANDS
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