© Optimum Energy Copyright © 2014 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential Introduction to HVAC Optimization Matt Tyson, PE,

© Optimum EnergyCopyright © 2014 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential

Introduction to HVAC OptimizationMatt Tyson, PE, CEM

November 2015

Copyright © 2014 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential

Energy Consumption in HVAC Systems

2

Sources: IDC and the EIA Commercial Building Consumption Survey

Total annual average

HVAC system detail

Typical building energy

load

Chilled water plant

Air-handling system

Boiler plant

Other100%

75%

50%

25%

0%

5%

35%

25%

35%


The Three Laws of HVAC System Optimization

3

You cannot optimize what you cannot measure.• Data collection via fully integrated sensor and meter

network• All relevant mechanical components tracked in real time

Optimize systems, not just individual components.• Holistic, system-based energy optimization• Ensures peak efficiency of entire heating and cooling

system

Optimization must be automatic, dynamic, and continuous.• Real-time dynamic process• Closed-loop system: does not require operator

intervention

Copyright © 2014 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential4

The Wrong Approach: HuntingThe biggest threat to effective optimization is lack of system transparency and stability• Common approach: hunt and reset• Hunting creates instability and loss of savings

Supply Air Temperature

Static Pressure

Chilled Water Valve

Position


The Right Approach: On-Premise Real-Time Dynamic Commissioning (RTDC)Eliminating hunting with relational controlCooling Tower

Fan SpeedCondenser

Pump SpeedChiller Vane

& SpeedChilled Water Pump Speed

Air Handler Fan Speed

Total System Cooling Output

Total System Energy Input

Total System Schematic

VFD’s

5


Chiller Plant Efficiency Scale

Annual average kW per ton

Legacy Chiller Plants Conventional Plants

Efficient Plants

Ultra Efficient Data Center

Plants

High EfficiencyPlants

Just like miles per gallon, the kW/ton figure reflects the efficiency of the chiller plant regardless of the amount of cooling produced

6

Average annual chilled water plant efficiency in kW/ton. Input includes: chillers, tower fans, condenser pumps, and chilled water pumping.


Operational Modules

Closed-loop system control

Pumps&Valves

Chillers TowerFans

VFD’s

VFD’s

OptimumLOOP TM

Chilled Water System Optimization

• Patented relational control algorithms• Automatically and continuously

optimize plant performance in real time• Dynamically adapt to yield the lowest

energy draw while meeting availability requirements

• Flexible implementation: e.g., ability to start with cooling towers Building Automation System

Cloud-Based M&V


Operational Modules

Air-Handling System Optimization

VAVs / CAVsAHUs

VFD’s

VFD’s

Building Automation System

• Continuous optimization of DDC variable air volume handlers

• Automatically adjust airflow to deliver precise output

• Minimize fan power, chilled water, and heating energy consumption

• Supplies cooling load from most efficient source based on real-time conditions

Cloud-Based M&V



Operational Modules

Cloud-Based M&V

Boiler Plant Optimization

Building Automation System

Pumps&Valves

VFD’s

Boilers

VFD’s

• Continuously calculates the most efficient operation of boilers and pumps

• Demand-based relational control algorithms optimize hot water and steam systems



Cloud-Based M&V: Real-Time Transparency

Real-Time Analytics

System Diagnostics & Prognostics Web &

Mobile Apps

Pumps&Valves

Chillers TowerFans

VAVs / CAVsAHUs

VFD’s

Boilers

VFD’s

• Robust, interactive data visualization with dynamic charting

• Anytime, anywhere access to performance and energy savings

• Intelligent operations management for facility operators

Cloud-Based M&V


Machine Learning Layer

Sensor & Intelligence Layer

Control Layer

Optimization Layer

Cloud Layer

Building Automation System Operational Modules

Real-time Dynamic Commissioning

Device Layer

Pumps&Valves

Chillers TowerFans

VAVs / CAVsAHUs

VFD’s

Boilers

VFD’s

Real-Time Analytics

System Diagnostics & Prognostics

Chilled water

Air-handling system

Boiler plant

Web &

Mobile Apps

Holistic HVAC System Optimization: A Platform Approach

Cloud-Based M&V

Thank you. Engineered. Deployed. Proven.

Copyright © 2014 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential. Information contained in this presentation and otherwise disclosed orally by Optimum Energy, LLC contains confidential information which is subject to the obligations of the confidentiality Agreement between Optimum Energy, LLC and you (“the NDA”). You agree to treat the information as donfidential in accordance with the NDA.

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© Optimum Energy Copyright © 2014 Optimum Energy LLC. All Rights Reserved. Proprietary & Confidential Introduction to HVAC Optimization Matt Tyson, PE,