Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(40) station Newman 45 years (1967-2011)| | BoM 7176 (WMO 94317) -23.42° latitude 119.80° longitude 524.5 m alt| | | |It is now 04-Jul-2013 02:58:37 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/40/NE_40_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/40/NE_40_DB.txt (Dry Design Day)| | B: CZ0305_NatHERS_1967-2011_w.txt => NEW33/40/NE_40_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/40/NE_40_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 43.1 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.04) => this Design DB was exceeded 9.7 days/year (incl std dev 6.0 days/year). 43.3 ° 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 6.0 days/year). Design drybulb changes 0.4 °C per century (linear regression R² 0.04) ~> 43.5 °C mid century. 24.6 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.74) => this Design WB was exceeded 9.8 days/year (incl std dev 5.9 days/year). 24.4 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 10.4 days/year (incl std dev 6.0 days/year). Design wetbulb changes -0.7 °C per century (linear regression R²=-0.09) ~> 24.0 °C mid century. 1.9 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 1.46) => this Heating DB was insufficient 9.0 days/year (incl std dev 6.1 days/year). 1.3 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 20.6 days/year (incl std dev 14.1 days/year). Design heating changes -0.0 °C per century (linear regression R²=-0.00) ~> 1.3 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:51 followed by maximum temperature at 15:27. Nighttime cooling rate 0.861 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 05:31 ~ Max at 15:30 Nighttime cooling rate 0.926 °/hr from 19:41 to 07:2 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 03:48 ~ Max at 15:24 Nighttime cooling rate 0.714 °/hr from 19:38 to 06:51 (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 | | 43.1 DDB / 19.9 CWB | 33.0 CDB / 24.6 DWB | 1.9 DB |11.8 DB| 41.2 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.17 % | 12.68 % | 15.50 % | 0.21 % | 0.36 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 12.74 % | 15.62 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.37 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=226) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7940| 43.1| 28.2| 14.9| 15:30| 05:31| |+/- 654|+/- 0.6|+/- 2.9|+/- 3.0|+/-01:00|+/-01:50| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=289) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6634| 24.4| 21.6| 2.8| 15:24| 03:48| |+/- 1192|+/- 0.7|+/- 2.1|+/- 2.4|+/-02:42|+/-05:38| +/- 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 | | 42.6 / 24.5 | 43.7 / 24.7 || 1.3 | 7.3 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 42.0 DDB / 19.6 CWB | 32.9 CDB / 24.3 DWB | 2.0 DB | 0.4 % | 40.8 DDB / 19.4 CWB | 32.2 CDB / 23.7 DWB | 4.0 DB | 1.0 % | 39.6 DDB / 19.2 CWB | 31.3 CDB / 23.1 DWB | 5.6 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 293 | 521 | 1227 | 757 | mean annual degrees days |+/- 125 |+/- 169 |+/- 198 |+/- 149 | +/- 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| | 29449 | 18179 | 1037 | 37 | mean annual degrees hours |+/- 4744 |+/- 3581 |+/- 1187 |+/- 59 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 31.8| 30.0| 28.0| 24.1| 18.6| 14.5| 14.1| 16.4| 20.9| 25.9| 29.1| 31.4| Average Temperature (DB) | 2.2| 2.6| 2.0| 2.1| 2.1| 1.8| 1.8| 1.9| 1.8| 1.7| 1.4| 1.9| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 3| 7| 11| 93| 732| 1877| 2181| 1530| 505| 76| 7| 3| HD-Hr base 15 °C | 7| 16| 23| 159| 557| 806| 850| 707| 366| 85| 19| 12| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 11| 26| 51| 283| 1519| 3124| 3516| 2603| 1094| 237| 39| 13| HD-Hr base 18 °C | 25| 53| 105| 358| 795| 986| 1019| 888| 535| 199| 54| 36| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 5838| 4232| 3469| 1698| 492| 62| 72| 283| 1081| 2702| 4025| 5494| CD-Hr base 24 °C | 1392| 1474| 1010| 638| 327| 59| 56| 182| 383| 725| 759| 1213| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 3993| 2720| 2063| 839| 160| 8| 7| 70| 486| 1570| 2567| 3696| CD-Hr base 27 °C | 1176| 1198| 737| 397| 156| 17| 15| 62| 223| 537| 599| 1066| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 284| 384| 212| 27| 0| 0| 0| 0| 2| 0| 8| 119| NECD-Hr base 21 °C | 376| 452| 382| 80| 1| 0| 0| 0| 12| 1| 28| 223| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 11| 10| 11| 0| 0| 0| 0| 0| 1| 0| 1| 3| NECD-Hr base 24 °C | 26| 20| 43| 0| 0| 0| 0| 0| 3| 0| 7| 9| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.1| 19.6| 17.9| 15.6| 11.7| 8.8| 8.3| 9.0| 11.1| 13.5| 15.3| 17.5| Average Wet Bulb Temp (WB) | 1.7| 1.9| 2.2| 2.1| 2.1| 2.2| 1.8| 1.8| 1.8| 1.8| 1.7| 1.7| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 4.16% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 43.0| 41.0| 38.9| 35.5| 31.4| 27.4| 27.5| 30.6| 35.0| 38.9| 41.4| 42.5| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 43.2| 42.4| 39.9| 36.2| 32.5| 27.2| 27.5| 30.6| 35.0| 39.2| 41.0| 42.7| Design maximum DB | 31.4| 30.7| 27.8| 23.9| 19.1| 15.3| 13.7| 15.0| 19.0| 24.7| 27.6| 30.7| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 18.7| 17.8| 15.7| 11.6| 5.2| 1.8| 1.0| 2.1| 6.0| 10.5| 14.7| 18.1| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 2.08% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 24.0| 24.1| 23.1| 21.3| 18.8| 16.7| 16.2| 16.5| 17.6| 19.1| 20.7| 22.9| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 24.3| 24.5| 24.7| 22.5| 19.6| 17.5| 17.2| 17.3| 18.7| 20.4| 21.6| 23.8| Design maximum WB | 23.2| 23.3| 22.6| 19.8| 16.5| 13.8| 12.4| 12.9| 14.0| 16.9| 18.6| 22.2| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 12.9| 12.6| 11.3| 8.3| 2.7| -0.3| -1.0| -0.6| 2.8| 5.5| 8.3| 11.0| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|