## Hybrid Heat Pump

Project Purpose: | This project monitored a ground source heat pump with solar recharge. |
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Project Abstract: | Weller Elementary School in Fairbanks, Alaska has a novel hybrid ground source heat pump (GSHP) that uses a solar collector array with an in-ground loop system to seasonally charge the ground with heat. Thermal energy stored in the ground is extracted over the winter to supplement the schoolâ€™s heating. The hybrid system was installed as a proof-of-concept experiment for potential hybrid systems in Interior Alaska. Solar recharge is effective at raising the ground temperature and thus improves the performance of the heat pump. The heat pump had an average COP of 3.73 during its first year of operation; however, a longer study would provide a better understanding of the extent of solar recharge that is required to maintain the heat pump COP. Further analysis of the costs of the heat pump system as part of the overall assessment of school energy costs is also recommended. |

Project Keywords: | Energy; Ground Source Heat Pumps; Heat Pumps; Heating; Solar Thermal; Space Heating; |

Project Site / Location: | Fairbanks, AK |

Project Start: | Sep 01, 2010 |

Project End: | Mar 31, 2014 |

Data Management Plan: | Click to download data management plan |

11.26.12 to 7.24.2013.zip

15MinCenterSensors.dat

15MinEightFootLoopSensors.dat

15MinUndisturbedSensors.dat

15MinWestEdgeSensors.dat

7.24.13 to 1.7.14.zip

Air Exit Temp UNSENT.csv

Air Exit Temp.csv

Air Exit Temp_0.0.csv

Air Exit Temp_0.0_hrly avgs.xlsx

Air Flow UNSENT.csv

Air Flow.csv

Air Flow_0.0.csv

Air Flow_0.0_hrly avgs.xlsx

Circ AB UNSENT.csv

Circ AB.csv

Circ AB_0.0.csv

Circ AB_0.0_hrly avg.xlsm

Circ AB_hrly avg.xlsx

Circ BC UNSENT.csv

Circ BC.csv

Circ BC_0.0.csv

Circ BC_0.0_hrly avg.xlsx

Circ BC_hrly avg.xlsx

Circ CA UNSENT.csv

Circ CA.csv

Circ CA_0.0.csv

Circ CA_0.0_hrly avg.xlsx

Circ CA_hrly avg.xlsx

Duct Temp UNSENT.csv

Duct Temp.csv

Duct Temp_0.0.csv

Duct Temp_0.0_hrly avgs.xlsx

Duct Temp_3600.0.csv

GL HP BTU rate UNSENT.csv

GL HP BTU rate.csv

GL HP BTU rate_0.0.csv

GL HP BTU rate_3600.0.csv

GL flow rate UNSENT.csv

GL flow rate.csv

GL flow rate_0.0.csv

GL flow rate_0.0_calculated hourly.csv

GL flow rate_3600.0.csv

GL return UNSENT.csv

GL return.csv

GL return2 UNSENT.csv

GL return2.csv

GL return2_0.0.csv

GL return2_0.0_calculated hourly.xlsx

GL return2_3600.0.csv

GL return_0.0.csv

GL return_3600.0.csv

GL supply temp UNSENT.csv

GL supply temp.csv

GL supply temp_0.0.csv

GL supply temp_0.0_calculated hourly.xlsx

GL supply temp_3600.0.csv

HP AB UNSENT.csv

HP AB.csv

HP AB_0.0.csv

HP AB_0.0_hrly avg.xlsm

HP AB_hrly avg.xlsm

HP AB_hrly avg.xlsx

HP BC UNSENT.csv

HP BC.csv

HP BC_0.0.csv

HP BC_0.0_hrly avg.xlsx

HP BC_hrly avg.xlsx

HP CA UNSENT.csv

HP CA.csv

HP CA_0.0.csv

HP CA_0.0_hrly avg.xlsx

HP CA_hrly avg.xlsx

HP exit temp UNSENT.csv

HP exit temp.csv

HP exit temp_0.0.csv

HP exit temp_3600.0.csv

HP1 UNSENT.csv

HP1.csv

HP2 UNSENT.csv

HP2.csv

HP3 UNSENT.csv

HP3.csv

SL BTU rate UNSENT.csv

SL BTU rate.csv

SL BTU rate_0.0.csv

SL exit temp UNSENT.csv

SL exit temp.csv

SL exit temp_0.0.csv

SL exit temp_3600.0.csv

SL flow rate UNSENT.csv

SL flow rate.csv

SL flow rate_0.0.csv

SL supply temp UNSENT.csv

SL supply temp.csv

SL supply temp_0.0.csv

SL supply temp_3600.0.csv

Solar Power UNSENT.csv

Solar Power.csv

Solar Power_0.0.csv

Solar Power_0.0_hrly avg.xlsx

Solar Power_hrly avg.xlsx

circ1 UNSENT.csv

circ1.csv

circ2 UNSENT.csv

circ2.csv

circ3 UNSENT.csv

circ3.csv

solar UNSENT.csv

solar.csv

Hybrid GSHP at Weller Elemetary School.pdf

Weller GSHP Timeline.docx

Weller Heat Pump Monitoring Plan.docx

Weller Research Plan (revised 5.20.11).docx

Weller data standards.docx

ground loop-temp strings.pdf

**No data sets have been added to this project.**