Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(19) station Charleville 45 years (1967-2011)| | BoM 44021 (WMO 94510) -26.41° latitude 146.26° longitude 303.3 m alt| | | |It is now 04-Jul-2013 00:40:56 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/19/CV_19_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/19/CV_19_DB.txt (Dry Design Day)| | B: CZ0310_NatHERS_1967-2011_w.txt => NEW33/19/CV_19_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/19/CV_19_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 39.8 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.41) => this Design DB was exceeded 9.7 days/year (incl std dev 4.5 days/year). 39.9 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 9.7 days/year (incl std dev 4.5 days/year). Design drybulb changes 0.3 °C per century (linear regression R² 0.03) ~> 40.0 °C mid century. 23.4 ° Design WB = mean of 10th highest 3PM each year + (std dev * 2.15) => this Design WB was exceeded 10.7 days/year (incl std dev 5.2 days/year). 23.4 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 9.5 days/year (incl std dev 4.7 days/year). Design wetbulb changes 2.1 °C per century (linear regression R²=0.33) ~> 24.7 °C mid century. 0.1 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 1.07) => this Heating DB was insufficient 10.4 days/year (incl std dev 5.9 days/year). -0.9 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 9.8 days/year (incl std dev 5.0 days/year). Design heating changes -0.3 °C per century (linear regression R²=-0.03) ~> -1.1 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:54 followed by maximum temperature at 15:52. Nighttime cooling rate 0.820 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 06:11 ~ Max at 16:06 Nighttime cooling rate 1.024 °/hr from 19:50 to 07:23 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at -3:35 ~ Max at 16:48 Nighttime cooling rate 0.390 °/hr from 19:40 to 06:50 (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 | | 39.8 DDB / 18.9 CWB | 27.5 CDB / 23.4 DWB | 0.1 DB |12.0 DB| 39.7 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.21 % | 11.82 % | 22.72 % | 0.28 % | 0.34 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 11.91 % | 22.87 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.48 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=238) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7696| 40.0| 24.2| 15.9| 16:06| 06:11| |+/- 720|+/- 0.7|+/- 3.4|+/- 3.3|+/-01:12|+/-01:16| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=215) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6396| 23.8| 20.0| 3.7| 16:48| -3:35| |+/- 1501|+/- 0.6|+/- 2.1|+/- 2.0|+/-04:24|+/-08:10| +/- 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 | | 39.6 / 23.5 | 40.5 / 23.7 || -0.2 | 4.0 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 39.0 DDB / 18.8 CWB | 27.5 CDB / 23.2 DWB | 0.4 DB | 0.4 % | 37.6 DDB / 18.5 CWB | 27.5 CDB / 22.5 DWB | 1.9 DB | 1.0 % | 36.2 DDB / 18.2 CWB | 27.6 CDB / 21.8 DWB | 3.4 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 449 | 760 | 714 | 385 | mean annual degrees days |+/- 67 |+/- 86 |+/- 121 |+/- 84 | +/- 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| | 17142 | 9235 | 329 | 6 | mean annual degrees hours |+/- 2911 |+/- 2026 |+/- 273 |+/- 12 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 28.6| 27.7| 25.4| 21.1| 16.1| 12.5| 11.7| 14.1| 18.3| 22.5| 25.4| 27.6| Average Temperature (DB) | 1.6| 1.6| 1.3| 1.3| 1.2| 1.1| 1.1| 1.3| 1.4| 1.5| 1.7| 1.5| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 1| 28| 284| 1295| 2561| 3151| 2201| 954| 248| 47| 6| HD-Hr base 15 °C | 2| 3| 35| 196| 466| 551| 644| 540| 312| 134| 46| 8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 12| 13| 116| 727| 2364| 4076| 4766| 3542| 1770| 625| 184| 48| HD-Hr base 18 °C | 22| 21| 91| 338| 603| 657| 720| 665| 450| 254| 121| 36| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 3696| 2843| 2118| 819| 120| 12| 12| 100| 540| 1375| 2229| 3278| CD-Hr base 24 °C | 941| 803| 638| 323| 77| 15| 16| 120| 278| 516| 747| 823| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2224| 1600| 1066| 285| 13| 1| 0| 20| 204| 657| 1215| 1950| CD-Hr base 27 °C | 726| 592| 446| 180| 21| 2| 1| 54| 147| 331| 527| 626| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 120| 123| 39| 3| 0| 0| 0| 0| 0| 1| 5| 38| NECD-Hr base 21 °C | 134| 153| 60| 9| 0| 0| 0| 0| 2| 3| 10| 65| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2| 3| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 5| 9| 3| 0| 0| 0| 0| 0| 0| 1| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 18.1| 18.3| 16.2| 13.1| 10.5| 8.0| 6.9| 7.7| 10.1| 12.7| 14.8| 16.7| Average Wet Bulb Temp (WB) | 1.4| 1.4| 1.4| 1.4| 1.5| 1.3| 1.6| 1.2| 1.4| 1.1| 1.1| 1.1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 4.66% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 40.3| 38.4| 36.5| 32.9| 28.5| 25.4| 25.6| 29.0| 33.2| 36.5| 38.4| 40.1| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 39.9| 38.6| 36.4| 33.0| 27.9| 25.0| 24.8| 28.1| 32.8| 36.2| 38.3| 39.8| Design maximum DB | 27.9| 27.2| 24.3| 21.0| 17.7| 14.5| 14.0| 15.4| 19.2| 22.4| 25.1| 27.3| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 16.8| 16.6| 12.1| 7.1| 2.5| -0.7| -1.3| -0.4| 2.7| 7.0| 11.2| 14.0| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 2.75% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 23.6| 23.4| 22.5| 19.8| 17.8| 15.9| 15.1| 16.0| 17.6| 19.7| 21.5| 22.7| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 23.4| 23.5| 22.3| 20.1| 18.0| 15.7| 15.1| 15.7| 17.3| 19.2| 20.7| 22.2| Design maximum WB | 22.3| 22.5| 21.2| 18.5| 16.3| 13.8| 13.0| 13.2| 15.1| 17.6| 19.4| 21.3| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 10.3| 10.9| 7.8| 4.3| 0.9| -1.8| -2.4| -2.1| 0.6| 3.2| 5.9| 8.0| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|