New Technologies to Improve HVAC Energy Performance. NEEECE Session 1-1 June 15, 2016

Transcription

1 New Technologies to Improve HVAC Energy Performance NEEECE Session 1-1 June 15, 2016

2 Why focus on HVAC? Computers 4% Office equipment 2% Referigerati on 9% Lighting 8% Cooking 5% Water heating 4% Building Energy Usage (BTU) by End Use Other 13% Space Heating 44% Cooling 4% Ventilation 7% HVAC accounts for over 50% of building energy usage Thousands of existing RTU units wasting energy Upcoming code changes increase baseline efficiency Influx of alternative technologies (VRF) presents challenges & opportunities Source: CBECS 2012 Data, Released May

3 Innovation and New Developments: 1. Rooftop Unit Optimizers: Case Study by BJs Wholesale an end user perspective 2. Advances in RTU technology: how to stay ahead of the curve 3. Variable Refrigerant Flow: When and where should you consider VRF 3

4 Panelists Kevin Moran, Manager of Utility and Energy Services, BJ's Wholesale Club RTU controllers Sam Martin, Sales Manager, Johnson Controls RTU technology Greg Hosselbarth, Regional Manager, Mitsubishi Electric Cooling & Heating Variable Refrigerant Flow 4

5 Kevin Moran Manager of Utility and Energy Services, BJ s Wholesale Club

6 BJ s Wholesale Club Advanced RTU Controller Retrofit Project with Transformative Wave VFD Units BJ s was invited to participate in 2 VFD Energy studies; one by USDOE and one by Cape Light Compact Results from both tests proved significant energy savings. (35-45%) After testing various manufacturer s product, BJ s selected T-Wave s Catalyst Lite solution. In 2014 and 2015 BJ s Wholesale deployed 583 advanced retrofit rooftop controllers in: 57 Stores in 10 States The overall goal of the project was to save energy, but the controls package also had to be able to integrate with our existing Danfoss control system. Fault Diagnostics Fan Motor Speed and Amperage

7 Snapshot of RTU programming in EMS. Notice we limit fan speed to no more than 90%. This equates into ~27% energy savings alone. Additional savings based on further reductions in speed dependent on temperature. Additional benefits include soft start motor control while having no adverse effects on indoor air quality.

8 Snapshot of EMS screen showing fan operation, along with 2 stages of cooling. Notice when cool 2 is on, amps are 18.7 and when only cool 1 is on, amps drop to 10.5.

9 Transformative Wave s CATALYST Lite solution Variable Speed Drive, Supply Sensor, and interface board All logic resides in the drive Automatically ramps up the fan to protect the compressor Provides positive interlock with fire/smoke protection system Works with existing motors 2016

10 Savings Results 2016

11 Top Take-Aways All new Clubs and HVAC replacements have VFD Drives Proven Energy Savings

12 Sam Martin Sales Manager, Johnson Controls

13 Sam Martin

14 Agenda Packaged RTU Background Key Industry Drivers Packaged Equipment Today Why Should an Owner Choose High Efficiency Future Innovations

15 Traditional Packaged Rooftop Market Off the shelf Limited Options Great Value Constant Volume Measured by EER EER EER * 65, ,000 Btu/h

16 What are the Key Market Drivers Today?

17 What size was the Boston Centrifugal Chiller market in 2015? $8.5 million / 50 units What size was the Boston RTU market in 2015? $35 million / 3,500 units

18 More than half of the U.S. Commercial Building Space is cooled by packaged HVAC equipment Department of Energy (DOE) new energy conservation standards Implemented in two phases Jan 1, 2018 Increase efficiency minimums by 10% Jan 1, 2023 Increase efficiency minimums by 25-30% Initiative will save more than any other in history.

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20 Drivers of Change 2016 DOE Focus on IEER Real World Energy IECC Financial crisis fueled innovation

21 Today s Packaged RTU Market Capabilities today far exceed previous generations Multiple Efficiency Tiers Sophisticated Controls Inverter Technology Direct Drive Fans Energy Recovery Dual Enthalpy ECM motors

22 Why should a building Owner consider High Efficient Packaged Rooftop Equipment?

23 Options available Smart Controllers Operational Savings Variable Speed Technologies Energy Savings High Efficiency Short Payback Times

24 Smart Scrubber HVAC Load Reduction Unit The Future Continued Focus on Real World Energy Smart Equipment Fault Detection Diagnostics (FDD) Connected Equipment - Internet of things (IoT) Integration with Other Products

25 Sam Martin 2016

26 Greg Hosselbarth Regional Manager, Mitsubishi Electric Cooling & Heating

27 Variable Refrigerant Flow (VRF) Greg Hosselbarth Commercial Regional Manager Mitsubishi Electric Heating & Cooling

28 Single Compressorized Outdoor Unit - Individual Fan coil unit per zone Flexible Refrigerant Lineset

29 Person Staff Meeting!! Recover heat from cooling zones for free heat Afternoon Early Morning 9:00 AM 100% Heating

30 Zoning Individual Zone control Flexibility Refrigerant Linesets 11 Indoor unit types Efficiency Variable Speed

31 VRF Zoned Comfort No more hot spot cold spot issues Individual control = Individual comfort

32 Flexibility Individual Zone Control Individual unit and thermostat per office Tenant Energy Allocation Flexibility for future tenant fit-out 2016

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34 Traditional 90º F Set Temp. 77º F 75º F 73º F OFF OFF OFF 60Hz ON ON ON 0Hz

35 Variable Speed Efficiency 90º F Set Temp. 75º F 150Hz 60 Hz 60Hz 30Hz ON Compressor 0Hz

36 12 Story Office Building Phase 1: Prepare for Tenant Fit-out 388 tons of Simultaneous Heating and Cooling equipment 100% heated by Air-source VRF

37 Factory 63: Innovation District Existing 6-story warehouse 35,000 sqft 38 Units + Live/Work spaces 100 tons of Simultaneous Heating & Cooling equipment 100% Heated by Air Source VRF LEED Gold

38 125,000sqft Office Building 100% heated by Air-source VRF (2) 15,000CFM DOAS W/ Enthalpy wheel serving indoor units Interior 4-way units and perimeter ducted units

39 Thank you for coming to NEEECE 2016