Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(43) station Oodnadatta 45 years (1967-2011)| | BoM 17043 (WMO 94476) -27.56° latitude 135.45° longitude 117.0 m alt| | | |It is now 04-Jul-2013 03:16:50 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/43/OO_43_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/43/OO_43_DB.txt (Dry Design Day)| | B: CZ0403_NatHERS_1967-2011_w.txt => NEW33/43/OO_43_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/43/OO_43_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 42.5 °C Design DB = mean of 10th highest 3PM each year + (std dev * 0.00) => this Design DB was exceeded 58.2 days/year (incl std dev 33.1 days/year). 45.1 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 36.4 days/year (incl std dev 23.5 days/year). Design drybulb changes 1.4 °C per century (linear regression R² 0.09) ~> 45.9 °C mid century. 23.2 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.90) => this Design WB was exceeded 9.4 days/year (incl std dev 5.0 days/year). 23.0 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 12.8 days/year (incl std dev 7.1 days/year). Design wetbulb changes 0.6 °C per century (linear regression R²=0.06) ~> 23.3 °C mid century. 2.9 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.70) => this Heating DB was insufficient 10.4 days/year (incl std dev 5.7 days/year). 0.8 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 2.3 days/year (incl std dev 1.5 days/year). Design heating changes 6.8 °C per century (linear regression R²=0.16) ~> 4.9 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:47 followed by maximum temperature at 16:11. Nighttime cooling rate 0.868 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 05:53 ~ Max at 16:00 Nighttime cooling rate 1.029 °/hr from 19:56 to 06:50 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 00:23 ~ Max at 17:24 Nighttime cooling rate 0.693 °/hr from 19:43 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 | | 42.5 DDB / 19.3 CWB | 30.6 CDB / 23.2 DWB | 2.9 DB |12.6 DB| 39.6 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 1.93 % | 6.45 % | 26.08 % | 0.43 % | 0.24 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 6.97 % | 26.33 % | |_____________________|______________________| | design DB concurrent with design WB | | 2.35 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=809) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7384| 42.4| 29.2| 13.2| 16:00| 05:53| |+/- 1262|+/- 0.5|+/- 1.8|+/- 1.9|+/-00:36|+/-01:51| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=198) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6529| 23.6| 20.0| 3.6| 17:24| 00:23| |+/- 1850|+/- 0.7|+/- 2.0|+/- 2.0|+/-05:36|+/-07:43| +/- 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 | | 46.0 / 23.7 | 46.4 / 23.9 || 3.0 | 5.1 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 45.3 DDB / 20.6 CWB | 30.6 CDB / 23.3 DWB | 3.6 DB | 0.4 % | 44.1 DDB / 19.9 CWB | 30.7 CDB / 22.2 DWB | 5.1 DB | 1.0 % | 42.3 DDB / 19.3 CWB | 36.2 CDB / 21.0 DWB | 6.5 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 256 | 485 | 1378 | 910 | mean annual degrees days |+/- 148 |+/- 260 |+/- 760 |+/- 592 | +/- 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| | 33068 | 21840 | 242 | 10 | mean annual degrees hours |+/- 18230 |+/- 14212 |+/- 285 |+/- 22 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 32.9| 31.9| 28.7| 23.8| 18.7| 15.1| 15.0| 17.6| 21.8| 25.4| 28.8| 30.9| Average Temperature (DB) | 4.3| 4.1| 3.9| 4.0| 3.9| 3.8| 3.9| 4.2| 4.1| 4.1| 4.0| 3.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 0| 13| 159| 759| 1649| 1801| 1169| 445| 136| 20| 2| HD-Hr base 15 °C | 4| 1| 19| 146| 513| 1006| 1095| 776| 343| 120| 22| 4| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 9| 11| 82| 468| 1566| 2832| 3045| 2101| 971| 411| 110| 25| HD-Hr base 18 °C | 24| 23| 87| 354| 926| 1534| 1651| 1318| 664| 306| 90| 25| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 6626| 5403| 4140| 1857| 574| 183| 192| 510| 1373| 2700| 4144| 5364| CD-Hr base 24 °C | 2871| 2511| 2332| 1654| 790| 322| 316| 652| 1232| 1890| 2326| 2505| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 4855| 3840| 2707| 1014| 241| 43| 43| 205| 746| 1623| 2773| 3750| CD-Hr base 27 °C | 2629| 2282| 1940| 1126| 395| 78| 75| 286| 784| 1342| 1921| 2218| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 90| 106| 17| 2| 0| 0| 0| 0| 0| 0| 5| 21| NECD-Hr base 21 °C | 153| 192| 42| 8| 1| 0| 0| 0| 0| 0| 21| 35| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 4| 5| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 15| 16| 1| 0| 0| 0| 0| 0| 0| 0| 3| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 17.3| 17.6| 15.3| 12.8| 10.3| 8.3| 7.7| 8.7| 10.8| 12.8| 14.6| 15.9| Average Wet Bulb Temp (WB) | 1.6| 1.7| 1.6| 1.7| 1.3| 1.6| 1.6| 1.5| 1.3| 1.3| 1.3| 1.2| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 29.39% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 44.7| 42.9| 40.4| 35.8| 30.4| 26.2| 27.0| 30.8| 35.3| 39.3| 42.1| 43.3| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 46.5| 45.3| 42.3| 37.8| 32.4| 28.9| 28.9| 31.4| 35.3| 38.9| 42.1| 44.1| Design maximum DB | 33.9| 33.4| 29.8| 25.0| 20.5| 16.8| 16.4| 18.4| 22.2| 25.9| 29.5| 31.9| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.0| 20.3| 16.8| 12.6| 8.2| 5.5| 5.1| 6.8| 9.7| 12.8| 16.2| 18.5| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 5.11% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.7| 22.8| 20.9| 18.6| 16.5| 14.5| 13.9| 15.1| 17.3| 18.7| 20.3| 21.6| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.9| 23.3| 20.7| 18.5| 15.6| 14.0| 13.2| 14.4| 16.9| 18.2| 19.5| 20.8| Design maximum WB | 21.1| 21.6| 18.5| 16.4| 12.6| 10.7| 9.8| 10.6| 12.5| 15.2| 17.3| 19.0| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 10.8| 11.3| 8.8| 6.0| 3.7| 1.7| 1.2| 1.9| 4.0| 5.8| 8.0| 9.5| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|