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Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, ASHRAE Research Project 1093-RP, Final Report
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This is the final report for the ASHRAE 1093-RP project. This report presents the method used to derive the diversity factors and typical load shapes of lighting and receptacle loads in office buildings. In this report the results of the application of the diversity factor calculations are applied to the data collected for this project. The buildings analyzed for this report consisted of office buildings monitored by the ESL, and office buildings provided by the LBNL.
DescriptionIn this report a day-typing method that uses a percentile analysis is described. In the percentile analysis the 50th percentile was used to calculate the diversity factors and the typical hourly load shapes; other statistics are reported as well, including: the mean, the mean plus or minus one standard deviation, and the 10th, 25th, 75th, and 90th percentiles. This percentile calculation has been codified into a MS Excel spreadsheet that can be used for analyzing up to one year of hourly data in the proper format. A table of comparative EUIs and a summary of the results have also been included to facilitate easier comparison of the profiles. In general the method divides the year into weekday and weekends; allowing the user to include or remove holidays as needed. The spreadsheet then produces three forms of output; a) tabular output describing the statistics of the diversity profiles that are developed, b) graphical output of the diversity profiles, and c) ready-to-use input files for the DOE-2, BLAST and EnergyPlus simulation programs. Electronic copies of all the diversity factor profiles in this report are provided in the accompanying CDROM as part of the MS Word file.
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Abushakra, B.; Sreshthaputra, A.; Haberl, J. S.; Claridge, D. E. (2001). Compilation of Diversity Factors and Schedules for Energy and Cooling Load Calculations, ASHRAE Research Project 1093-RP, Final Report. Energy Systems Laboratory (http://esl.tamu.edu), Texas A&M University. Available electronically from