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SENSORS AND ANALYTICS FOR SMART BUILDINGS

DAWN JOHN MULLASSERY ELECTRICAL ENGINEER, ENERGY SYSTEMS

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OVERVIEW• BUILDINGS AND ENERGY CONSUMPTION

• SMART BUILDINGS

• ENERGY DISTRIBUTION IN BUILDINGS

• HVAC - WORKING AND COMPONENTS

• SENSORS

• SENSOR AND CONTROLLER DATA IN

ENERGYANALYTICS

BUILDINGS AND ENERGY

Source: https://www.seas.ucla.edu/~pilon/PCMIntro.html3

SMART BUILDINGS

AUTOMATED BUILDINGS

ADVANCED BUILDINGS

INTELLIGENT BUILDINGS

INTEGRATED BUILDINGS

Source: http://www.ibm.com/smarterplanet/us/en/green_buildings/overview/4

WHAT MAKES A BUILDING SMART ?

Safe, Comfortable and Productive Environment

for Occupants

Energy Efficiency

SMART BUILDING

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ENERGY DISTRIBUTION IN SMART BUILDINGS

Source: http://www2.schneider-electric.com/sites/corporate/en/products-services/product-launch/smart-panels/building-energy-savings.page

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HVAC SystemsHVAC: Heating, Ventilation, Air ConditioningCondition air to a preferred temperature and

humidity for comfort

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HVAC SYSTEMS

• HUMIDITY CAN BE ALTERED

• OUTSIDE AIR BE ADDED OR REMOVED

• TEMPERATURE CAN BE ALTERED

• FILTRATION CAN BE DONE

• CO2 CAN BE CONTROLLED

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HVAC WORKING

A H U

Source: https://www.eclimatenotebook.com/fundamentals_nl.php9

AIR HANDLING UNIT (AHU)

Source: https://www.eclimatenotebook.com/fundamentals_nl.php10

SENSORS AND CONTROLLERS

Source: http://www.electrical-knowhow.com/2012/04/hvac-control-systems-and-building.html11

SENSORS

THERMISTORS (20ºC to 24ºC)HUMIDITY SENSORS (50% RH to 65% RH)CARBON DIOXIDE SENSORS ( 450 ppm to

650 ppm)OCCUPANCY SENSORS

(ASHRAE standards)

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ENERGY ANALYTICSFault Detection in building systemsContinuous energy monitoring and real time or close-

to-real time alertsIdentifies anomalies and patterns in building data

Where does the data come from??Sensors and Controllers

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ENERGY ANALYTICS

Source: Advanced Sensors and Controls for Building Applications: Market Assessment and Potential R&D Pathways

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SUMMARYBuildings contribute to 40% of total energy

consumptionExcellent candidates for energy savingsSmart buildings and building automation is

critical and gaining popularityEnergy analytics is a powerful tool that has

the potential to save energy and improve building performance15

THANK YOU!

Q & A

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