Evaluation of the RTF Standard Protocol Fan and Cooling Savings from Commercial-Sector Heat Pump Units. Rooftop Unit Working Group (RTUG) August 20, 2012. BEGINNINGS. RTUG recommendation to RTF in 2010 to add heat pumps to the RTU Protocol and Annual Energy Use and Savings Calculator
Rooftop Unit Working Group (RTUG)
August 20, 2012
Long-term metered energy use was constructed from the
winter and summer energy signatures
1. Update Regional RTU Research Database to included metered data from the heat pump project.
2. Notify the Vancouver facility operator of observed deficiencies in RTU operation.
3. Continuing metering/data collection for another 12 months, assuming there is continued access to the Dreamwatts system data, which is unknown at this time.
4. Adapt the RTF/RTU Standard Protocol and Calculator to produce winter signatures. In the near term, this adaptation could take the form of an adapted spreadsheet tool. The adaptation includes annualizing a normalized year estimate by dividing the year into portions associated with the winter and summer signatures.
5. Further test and substantiate the two-season signature approach on additional heat pump units = 10 units, 5 east side, 5 west side, with at least 6 months data, to provide for normalized annual energy use and savings estimates in the Calculator.
6. Expand the tested application of the heat pump signature by revisiting earlier heat pump metering data from the BPA RTU research program and coordinate with future BPA-sponsored heat pump metering and Pacific Northwest National Laboratory heat pump metering that is just underway.
7. Consider proposing a heat pump addition to the RTU standard protocol by the RTF in 2014 or sooner if additional data is available. In this project as well as others, the existence of an approved protocol has been shown to be a substantial analytical time saver.