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Variable Capacity Heat Pump RTF Sub-Committee October 23 , 2013. Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency. Meeting Topics. VC HP Overview ( M ira) DOE ASRAC working group (Paul Doppel) Plus if time allows: New VRF energy-saving features
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Variable Capacity Heat Pump RTF Sub-CommitteeOctober 23, 2013 Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency
Meeting Topics • VC HP Overview (Mira) • DOE ASRAC working group (Paul Doppel) • Plus if time allows: • New VRF energy-saving features • Load based testing (all) • Other VRF research projects (all) • Suggestions for future meetings (all)
Variable Capacity Heat Pumps (VC HP = VRF + DHP) + Variable Refrigerant FlowHeat Pump System Ductless Heat Pumps
Variable Refrigerant Flow (VRF) Systems • VRF systems, either heat-pump or heat-recovery models, provide heating and air-conditioning, with: • Inverter driven outdoor-unit compressors and condenser fans, providing improved part-load and low-ambient performance, • Multiple indoor-units with multi-speed fans, electronic expansion valves and integrated thermostats, • 3. Refrigerant piping network for heat transfer, • Integrated control system, and • Ventilation provided by VRF system, natural ventilation or a dedicated outside air system (DOAS).
VC HP Sub-Committee • Sub-Committee of the Regional Technical Forum (RTF) • 2. Purpose: develop and recommend VC HP measures with • high consensus methodology to estimate and verify electrical savings • specification for cost effective installations that ensures persistent savings • Minutes and presentations are posted at: http://rtf.nwcouncil.org/subcommittees/vchp/meetings.htm
DOE ASRAC Working Group • Paul Doppel • Mitsubishi Senior Director, Industry & Government Relations
November Meeting 11/20/13 at 10 am • Potential topics: • BPA’s Residential VC HP Research • New VRF energy-saving features • Other