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Variable Capacity Heat Pump RTF Sub-Committee June 27 , 2012. Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency. Meeting Agenda. VC HP Sub-Committee Overview (Mira) EnergyPlus VRF Overview ( Richard Raustad, FSEC) Building Simulation Program Issues
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Variable Capacity Heat Pump RTF Sub-CommitteeJune 27, 2012 Mira Vowles, P.E., CEM Emerging Technology Project Manager BPA Energy Efficiency
Meeting Agenda • VC HP Sub-Committee Overview (Mira) • EnergyPlus VRF Overview (Richard Raustad, FSEC) • Building Simulation Program Issues • If we have time: • BPA VRF System Emerging Technology Field Test • Whole Building M&V Approach
EnergyPlus VRF Overview • Richard Raustad, Senior Research Engineer • Florida Solar Energy Center
Building Simulation Program Issues • How accurate are building simulation programs for estimating site-specific savings? • How will the accuracy of the building simulation programs be verified? • Certify building simulation programs? • Develop VRF calibrated modeling best practices? • Other?
30-ton VRF System Before & After Energy Use BEFORE AFTER
Next Meeting: 8/22/12 at 9 am (no July meeting) • Potential Topics: • Compile list of PNW VRF installations & brainstorm how to “mine” for useful information • Develop M&V best practice and standard protocol • Develop research plan to verify model accuracy • Compare actual RTU annual fan kWh/SF to models • Develop VRF savings estimates (IEER plus fan?) • NEEA RTU Replacement Discussion