DOE-2 Reference Manual Version 2.1 - DOE2.com

D. SOLAR RADIATION DATANone of theradiation data.hourly values.present TRY or California weather files contain measured solarTwo options are currently available for calculating the neededIn the first option, the LOADS program calculates hourly values of solarradiation for the station in question using the Boeing cloud cover modifier toestimate solar radiation from cloud cover data.The second option uses the Kimura-Stephenson cloud cover modifier model.This model is available only in the weather processor for TRY tapes.Specifying the TRYKS option to the weather processor will result in a solarpacked weather file. The DOE-2 LOADS program will then use these solar valuesin place of the usual Boeing calculations described in the first option. TheKimura-Stephenson algorithm was developed from a comparison of measured solardata with cloud cover data for a location near Ottawa, Canada. The resultingcloud cover constants, therefore, include the Ottawa clearness numbers. Thisoption should only be used for climates similar to Ottawa.SOLMETOne year of solar data for each of 35 US weather stations will be includedin the weather data library in the future. The SOLMET format and a map showingthe location of the solar monitoring weather stations are included as Figs.VIII.2 and VIII.3, respectively. The SOLMET Manual describes how the solardata were prepared and summarizes the methods used to correct existing dataand to provide missing data. .E. DESIGN DAYThe user may instruct the program to perform the LOADS and SYSTEMS calculationsfor a design day. The format for design-day input is given in Chap. III.VIII.13 (Revised 5/81)