Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(16) station Adelaide 45 years (1967-2011)| | BoM 23090 (WMO 94675) -34.92° latitude 138.62° longitude 51.0 m alt| | | |It is now 04-Jul-2013 00:20:15 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/16/AD_16_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/16/AD_16_DB.txt (Dry Design Day)| | B: CZ0514_NatHERS_1967-2011_w.txt => NEW33/16/AD_16_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/16/AD_16_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 38.0 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.55) => this Design DB was exceeded 9.8 days/year (incl std dev 4.2 days/year). 37.9 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 10.5 days/year (incl std dev 4.5 days/year). Design drybulb changes 5.5 °C per century (linear regression R² 0.49) ~> 41.2 °C mid century. 20.9 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.86) => this Design WB was exceeded 9.8 days/year (incl std dev 4.2 days/year). 21.1 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 9.4 days/year (incl std dev 4.1 days/year). Design wetbulb changes 0.9 °C per century (linear regression R²=0.15) ~> 21.7 °C mid century. 4.6 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.99) => this Heating DB was insufficient 10.0 days/year (incl std dev 4.6 days/year). 3.8 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 9.3 days/year (incl std dev 4.2 days/year). Design heating changes -3.0 °C per century (linear regression R²=-0.44) ~> 2.0 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 04:04 followed by maximum temperature at 15:24. Nighttime cooling rate 0.339 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 03:04 ~ Max at 15:36 Nighttime cooling rate 0.449 °/hr from 19:54 to 07:26 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at -2:25 ~ Max at 16:12 Nighttime cooling rate 0.369 °/hr from 19:56 to 06:52 (evenings following 3PM design conditions). ___________________________________________________________________________ ___________________________________________________________________________ |Option 1 Dry summer | Option 2 Wet summer |Winter(8AM)| Daily | Yearly | |design DB / coinc WB | coinc DB / design WB | heating | Range | Range | | 38.0 DDB / 18.6 CWB | 29.3 CDB / 20.9 DWB | 4.6 DB |10.7 DB| 33.4 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.28 % | 2.39 % | 4.85 % | 0.38 % | 0.44 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 2.50 % | 5.07 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.64 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=155) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7755| 38.5| 23.2| 15.3| 15:36| 03:04| |+/- 1175|+/- 0.8|+/- 3.5|+/- 3.4|+/-01:12|+/-06:43| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=240) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6420| 21.1| 16.0| 5.1| 16:12| -2:25| |+/- 1916|+/- 0.8|+/- 2.1|+/- 2.0|+/-04:18|+/-08:05| +/- standard deviation |________|________|_______|_________|________|________| AIRAH critical design excludes 0.25 % extremes (24 hours and 8AM-6PM) _________________________________________________ _________________________ | Critical Cooling || Critical Heating | | 24 hour | 8AM-6PM || 24 hour | 8AM-6PM | | DB / WB | DB / WB || DB | DB | | 38.3 / 21.4 | 39.7 / 21.8 || 4.0 | 6.2 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 37.3 DDB / 18.4 CWB | 29.3 CDB / 20.9 DWB | 4.5 DB | 0.4 % | 34.9 DDB / 17.8 CWB | 29.1 CDB / 19.8 DWB | 5.7 DB | 1.0 % | 32.8 DDB / 17.2 CWB | 28.6 CDB / 18.9 DWB | 6.8 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 531 | 1108 | 229 | 114 | mean annual degrees days |+/- 54 |+/- 78 |+/- 50 |+/- 33 | +/- standard deviation |____________|____________|____________|____________| Cooling degree hour base temps 21 °C, 24 °C & 27 °C. _____________________________________________________ | Cooling | Cooling | Non-Evaporative Cooling | |DegHr base24|DegHr base27|WB DH base21|WB DH base24| | 5494 | 2733 | 29 | 1 | mean annual degrees hours |+/- 1206 |+/- 802 |+/- 38 |+/- 3 | +/- standard deviation |____________|____________|____________|____________| Average cooling and heating degree hours (D-Hr) tabulated by month _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.6| 22.9| 20.3| 17.3| 14.2| 11.8| 11.2| 12.1| 13.9| 16.2| 18.9| 20.8| Average Temperature (DB) | 1.8| 1.4| 1.4| 1.2| 0.8| 0.8| 0.7| 0.9| 1.1| 0.9| 1.5| 1.3| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 60| 44| 162| 519| 1321| 2307| 2795| 2396| 1588| 949| 423| 173| HD-Hr base 15 °C | 59| 36| 89| 240| 313| 487| 428| 417| 373| 221| 147| 93| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 410| 328| 732| 1488| 2907| 4229| 4833| 4304| 3158| 2219| 1254| 737| HD-Hr base 18 °C | 222| 154| 253| 435| 437| 556| 470| 548| 532| 377| 328| 236| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1414| 1337| 728| 191| 13| 0| 0| 3| 45| 210| 606| 945| CD-Hr base 24 °C | 650| 498| 430| 135| 22| 0| 1| 9| 54| 123| 385| 390| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 775| 711| 338| 59| 1| 0| 0| 0| 10| 72| 286| 481| CD-Hr base 27 °C | 424| 332| 280| 59| 2| 0| 0| 1| 17| 62| 238| 246| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 14| 10| 3| 0| 0| 0| 0| 0| 0| 0| 0| 2| NECD-Hr base 21 °C | 26| 22| 11| 1| 0| 0| 0| 0| 0| 0| 0| 4| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 2| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 14.6| 14.8| 13.7| 12.1| 10.5| 9.0| 8.3| 8.5| 9.5| 10.6| 12.1| 13.3| Average Wet Bulb Temp (WB) | 1.2| 0.9| 1.0| 0.9| 0.7| 0.9| 0.7| 0.6| 0.7| 0.6| 0.8| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 5.95% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 39.8| 38.8| 35.9| 31.0| 25.0| 20.2| 19.4| 22.5| 27.4| 32.1| 35.8| 37.8| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 38.1| 37.3| 34.4| 29.6| 24.3| 18.9| 18.3| 21.5| 25.4| 29.5| 33.8| 35.7| Design maximum DB | 27.4| 27.0| 24.4| 20.6| 16.5| 13.6| 12.7| 13.7| 17.2| 20.1| 23.7| 26.0| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 12.2| 12.4| 10.4| 8.2| 5.5| 3.6| 3.3| 3.8| 5.0| 6.6| 8.5| 10.4| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 3.94% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.3| 21.5| 20.5| 18.3| 16.0| 14.0| 13.3| 13.6| 15.4| 17.2| 19.3| 20.7| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.0| 20.7| 19.7| 17.5| 15.5| 13.4| 12.5| 12.8| 14.7| 16.4| 18.4| 19.4| Design maximum WB | 19.1| 18.7| 17.3| 15.3| 13.6| 12.1| 10.9| 11.0| 12.2| 13.9| 15.8| 17.1| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 8.5| 8.5| 7.7| 6.4| 4.2| 2.8| 2.6| 2.9| 3.9| 4.7| 6.2| 7.4| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|