Title "Performance of a mixed-use ground source heat pump system in Stockholm" Accompanying data set Description This data set accompanies the paper: Spitler, J.D. and S.E.A. Gehlin. 2022. Performance of a mixed-use ground source heat pump system in Stockholm. Clima 2022. 22-25 May, 2022. Rotterdam. The data set consists of four Excel xlsm files and three Excel xlsx files. The xlsm files contain VBA source code used to post-process the data. Abstract Abstract (from the paper): The 6300 m2 two-story Studenthuset building at Stockholm University in Stockholm, completed in 2013, was thoroughly instrumented. Space heating and hot water are provided by a ground source heat pump (GSHP) system consisting of five 40 kW off-the-shelf water-to-water heat pumps connected to 20 boreholes of 200 m depth in hard rock. Space cooling is provided by direct cooling from the boreholes. This system has now been monitored for five years. This paper presents the results in the form of a range of performance indicators that describe the short-term and long-term system performance. Performance factors are computed for several boundaries defined by the IEA HPT Annex 52 boundary schema. Seasonal, monthly, daily, and binned performance factors for both heating and cooling operation are presented and discussed. Contrary to expectations based on thermodynamic theory, the performance is better correlated to the quantity of heating or cooling provided than it is to the exiting fluid temperatures from the ground heat exchanger. Despite being in Stockholm, the building rejects about 30% more than it extracts, leading to a minimal temperature increase over the five measured years. The analysis indicates that if operated as is, the GHE will not exceed its temperature constraints for many decades. The five-year seasonal performance factor (SPF) for combined heating and cooling is 5.2±0.2 considering only the heat pump and source-side circulating pump. However, the load-side distribution system and Legionella protection systems result in a significant decrease in the 5-year combined heating and cooling SPF at the outer boundary to 1.8±0.3. Data Description The analysis of the five-years of data for the Studenthuset building at the University of Stockholm is contained in the 49 MB file 2016-2021_rev_06.xlsm. This Excel spreadsheet includes both the hourly raw data and the VBA code used to post-process it. As working with the full file is unwieldy, worksheets from the post-processing analysis were extracted and used to create plots, as summarized below. Each of these workbooks will have the data extracted from 2016-2021_rev_06.xlsm. The filenames correspond to worksheet names in the 49 MB file. The interested reader can work backwards from the figure number to the workbook used to make the plot, to the correct worksheet in 2016-2021_rev_06.xlsm. One exception is Figure 5; the temperatures there were extracted from Sheet1 of 2016-2021_rev_06.xlsm Figure FileName Worksheet 3 BinResultsODA.xlsx Energy Signature 4 BinResultsYear_V3.xlsm GHELoads 5 Temperatures.xlsx Sheet1 6 BinResultsHPEFT_V2.xlsm Plot 7 BinResultsYear_V3.xlsm Elec. 8 BinResultsYear_V3.xlsm Elec. 9 BinResultsYear_V3.xlsm BinResultsYear 10 BinResultsYear_V3.xlsm BinResultsYear 11 BinResults_Month_of_Year.xlsx BinResultsMonth 12 BinResults_Month_of_Year.xlsx BinResultsMonth 13 BinResultsHPEFT_V2.xlsm Plot4 14 BinResultsHPEFT_V2.xlsm Plot4 15 BinResults_Day_of_Operation.xlsm Sheet2 Previous analyses of the Studenthuset building with 1-3 years of data are described in the papers below. Additional References Spitler, J. D. and S. Gehlin. 2019. Measured Performance of a Mixed-Use Commercial-Building Ground Source Heat Pump System in Sweden. Energies 12(10): 2020. https://www.mdpi.com/1996-1073/12/10/2020 Spitler, J.D. and. and S. Gehlin. 2021. Three Years’ Performance Monitoring of a Mixed-Use Ground Source Heat Pump System in Stockholm. 13th IEA Heat Pump Conference. Jeju, Korea. April 26-29. pp. 262-271. Gehlin, S., J.D. Spitler, A. Larsson and Å. Annsberg. 2018. Measured performance of the University of Stockholm Studenthuset ground source heat pump system. EnerStock 2018 -14th International Conference on Energy Storage. 25-28 April 2018, Adana, Turkey.