Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(47) station Bickley 18 years (1994-2011)| | BoM 9240 (WMO 95610) -32.01° latitude 116.14° longitude 384.0 m alt| | | |It is now 04-Jul-2013 03:39:32 -> computational time was 3 minutes| | OUTPUTS | | INPUTS => NEW33/47/BI_47_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/47/BI_47_DB.txt (Dry Design Day)| | B: CZ0410_NatHERS_1994-2011_w.txt => NEW33/47/BI_47_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/47/BI_47_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 36.4 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.89) => this Design DB was exceeded 10.2 days/year (incl std dev 3.9 days/year). 36.6 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 9.4 days/year (incl std dev 3.5 days/year). Design drybulb changes 1.9 °C per century (linear regression R² 0.10) ~> 37.5 °C mid century. 21.6 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.76) => this Design WB was exceeded 9.9 days/year (incl std dev 6.0 days/year). 21.3 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 12.3 days/year (incl std dev 7.5 days/year). Design wetbulb changes -10.2 °C per century (linear regression R²=-0.44) ~> 16.5 °C mid century. 4.0 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.83) => this Heating DB was insufficient 9.5 days/year (incl std dev 4.5 days/year). 3.4 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 8.2 days/year (incl std dev 3.5 days/year). Design heating changes 5.9 °C per century (linear regression R²=0.47) ~> 6.2 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:09 followed by maximum temperature at 15:15. Nighttime cooling rate 0.411 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 04:33 ~ Max at 15:30 Nighttime cooling rate 0.724 °/hr from 19:58 to 06:53 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 01:37 ~ Max at 15:54 Nighttime cooling rate 0.611 °/hr from 19:45 to 07:1 (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 | | 36.4 DDB / 18.5 CWB | 28.6 CDB / 21.6 DWB | 4.0 DB |14.5 DB| 32.4 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.20 % | 2.55 % | 4.76 % | 0.31 % | 0.43 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 2.68 % | 4.87 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.50 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=79) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 8043| 37.0| 20.1| 16.9| 15:30| 04:33| |+/- 1075|+/- 0.9|+/- 2.7|+/- 2.9|+/-01:06|+/-05:52| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=76) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 7548| 22.0| 15.1| 6.8| 15:54| 01:37| |+/- 1647|+/- 1.0|+/- 3.6|+/- 3.6|+/-02:42|+/-07:39| +/- 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 | | 36.1 / 21.9 | 37.5 / 22.6 || 3.5 | 5.3 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 35.2 DDB / 18.3 CWB | 27.9 CDB / 21.3 DWB | 3.9 DB | 0.4 % | 33.4 DDB / 17.7 CWB | 26.9 CDB / 20.1 DWB | 4.9 DB | 1.0 % | 31.6 DDB / 17.2 CWB | 27.2 CDB / 18.9 DWB | 5.8 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 704 | 1321 | 191 | 87 | mean annual degrees days |+/- 59 |+/- 84 |+/- 26 |+/- 15 | +/- 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| | 4591 | 2079 | 59 | 7 | mean annual degrees hours |+/- 616 |+/- 360 |+/- 101 |+/- 17 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.2| 22.3| 20.4| 17.0| 14.0| 11.3| 10.4| 10.9| 12.0| 14.5| 17.5| 20.1| Average Temperature (DB) | 1.4| 1.3| 1.1| 1.1| 1.0| 0.6| 0.6| 0.8| 0.7| 0.8| 1.2| 1.6| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 176| 146| 293| 640| 1486| 2681| 3340| 3006| 2391| 1569| 765| 393| HD-Hr base 15 °C | 120| 105| 167| 230| 462| 387| 418| 485| 330| 308| 275| 223| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 593| 491| 858| 1635| 3060| 4616| 5412| 5016| 4199| 3018| 1747| 1069| HD-Hr base 18 °C | 232| 210| 312| 406| 605| 413| 443| 545| 423| 434| 409| 423| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1315| 1179| 747| 147| 10| 0| 0| 0| 3| 61| 340| 789| CD-Hr base 24 °C | 414| 357| 237| 86| 14| 0| 0| 0| 7| 39| 166| 336| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 656| 576| 317| 35| 1| 0| 0| 0| 0| 13| 124| 357| CD-Hr base 27 °C | 257| 221| 132| 33| 2| 0| 0| 0| 1| 14| 79| 189| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 28| 16| 1| 0| 0| 0| 0| 0| 0| 1| 7| 5| NECD-Hr base 21 °C | 66| 32| 2| 0| 1| 0| 0| 0| 0| 6| 22| 20| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 3| 1| 0| 0| 0| 0| 0| 0| 0| 0| 2| 1| NECD-Hr base 24 °C | 12| 1| 0| 0| 0| 0| 0| 0| 0| 2| 7| 4| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 14.9| 14.7| 13.5| 12.1| 10.5| 8.8| 8.1| 8.4| 9.0| 10.1| 11.9| 13.2| Average Wet Bulb Temp (WB) | 1.3| 1.0| 0.9| 0.7| 1.1| 0.8| 0.7| 0.9| 0.6| 0.7| 0.6| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 6.27% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 37.9| 37.5| 36.2| 30.1| 25.9| 20.1| 19.0| 20.6| 23.9| 29.4| 33.5| 36.5| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 36.6| 35.6| 34.1| 29.1| 23.9| 18.8| 17.7| 19.0| 21.8| 26.2| 31.6| 34.3| Design maximum DB | 22.1| 21.7| 20.7| 17.9| 15.4| 12.9| 12.1| 12.3| 12.6| 15.5| 17.7| 19.7| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 9.1| 9.6| 8.1| 7.3| 5.3| 4.1| 2.8| 3.3| 3.3| 4.5| 5.8| 7.6| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 5.20% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.5| 21.6| 20.4| 18.5| 17.4| 15.0| 14.3| 14.2| 14.7| 17.4| 19.8| 20.3| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.7| 21.0| 19.3| 18.0| 16.2| 14.0| 13.1| 13.4| 13.8| 16.0| 17.5| 19.2| Design maximum WB | 17.9| 17.2| 16.3| 15.2| 13.9| 11.8| 11.0| 11.4| 11.3| 12.9| 14.4| 15.5| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 6.7| 6.7| 5.4| 5.2| 4.2| 2.8| 1.9| 2.2| 2.4| 2.9| 4.1| 5.6| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|