Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Variable Capacity Heat Pump Laboratory & Field Test Results

661 views

Published on

Ryan Fedie, Engineering Manager, BPA Energy Efficiency
26th Annual E Source Forum

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Variable Capacity Heat Pump Laboratory & Field Test Results

  1. 1. B O N N E V I L L E P O W E R A D M I N I S T R A T Bonneville Power Administration Variable Capacity Heat Pump Laboratory & Field Test Results 26th Annual E Source Forum September 17–20, 2013 Ryan Fedie Engineering Manager, BPA Energy Efficiency rtfedie@bpa.gov I O N
  2. 2. B O N N E V I L L E P O W E R A D M I N I S T R A T I VCHP Indoor & Outdoor Unit Credit: Walt Hunt, EPRI Labs 2 O N
  3. 3. B O N N E V I L L E P O W E R A D M I N I S T R A T I O VCHP Lab Testing  Fan and compressor speeds generally track one another through the operating modes  Compressor speed increases as the outdoor temperature decrease (reduces aux heat usage)  Cyclic test: no affect on the performance of the system  Frost Accumulation test: no degradation in capacity output  Savings over federal minimum efficiency unit: 17% energy savings for Seattle, 19% for Boise 3 N
  4. 4. B O N N E V I L L E P O W E R A D M I N I S T R A T I VCHP Lab Testing Capacity Curves of Energy Model Data 4 O N
  5. 5. B O N N E V I L L E P O W E R A D M I N I S T R A T I O Summary of Field Study  Developed analytical tools to evaluate VCHP energy use on an annual basis  Good agreement between field data & lab data  VCHPs perform at higher levels than single speed systems  Modeled performance with field data 25-30% improvement  Duct losses larger because operate at lower airflows – however, only ~5% greater  Equipment size, aux controls, setback behavior still matter 5 N
  6. 6. B O N N E V I L L E P O W E R A D M I N I S T R A T I O Summary of Field Study  Developed analytical tools to evaluate VCHP energy use on an annual basis  Good agreement between field data & lab data  VCHPs perform at higher levels than single speed systems  Modeled performance with field data 25-30% improvement  Duct losses larger because operate at lower airflows – however, only ~5% greater  Equipment size, aux controls, setback behavior still matter 6 N
  7. 7. B O N N E V I L L E P O W E R A D M I N I S T R A T I Contact Information BPA, Lab & Field Testing Kacie Bedney, Research Engineer Bonneville Power Administration 503.230.4631 kcbedney@bpa.gov BPA Emerging Technology Jack Callahan, Research Technical Lead Bonneville Power Administration 503.230.4496 jmcallahan@bpa.gov EPRI, Lab Testing Walt Hunt. Project Engineer Electric Power Research Institute 865.218.8184 whunt@epri.com Ecotope, Field Testing Ben Larson, Research Scientist Ecotope, Inc. 206.322.3753, ext 207 ben@ecotope.com 7 O N

×