Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(45) station Woomera 45 years (1967-2011)| | BoM 16001 (WMO 94659) -31.16° latitude 136.81° longitude 168.5 m alt| | | |It is now 04-Jul-2013 03:30:11 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/45/WO_45_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/45/WO_45_DB.txt (Dry Design Day)| | B: CZ0408_NatHERS_1967-2011_w.txt => NEW33/45/WO_45_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/45/WO_45_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 41.0 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.41) => this Design DB was exceeded 9.9 days/year (incl std dev 4.0 days/year). 41.2 ° 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 3.9 days/year). Design drybulb changes 3.2 °C per century (linear regression R² 0.32) ~> 43.1 °C mid century. 21.4 ° Design WB = mean of 10th highest 3PM each year + (std dev * 2.01) => this Design WB was exceeded 10.0 days/year (incl std dev 4.4 days/year). 21.5 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 9.6 days/year (incl std dev 4.3 days/year). Design wetbulb changes 1.0 °C per century (linear regression R²=0.12) ~> 22.1 °C mid century. 4.0 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.76) => this Heating DB was insufficient 9.5 days/year (incl std dev 4.3 days/year). 3.4 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 9.6 days/year (incl std dev 4.3 days/year). Design heating changes -0.9 °C per century (linear regression R²=-0.18) ~> 2.9 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:45 followed by maximum temperature at 16:14. Nighttime cooling rate 0.750 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 05:15 ~ Max at 15:54 Nighttime cooling rate 1.040 °/hr from 19:58 to 06:52 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at -2:45 ~ Max at 17:30 Nighttime cooling rate 0.743 °/hr from 19:46 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 | | 41.0 DDB / 18.7 CWB | 30.1 CDB / 21.4 DWB | 4.0 DB |13.7 DB| 37.0 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.28 % | 3.12 % | 10.60 % | 0.49 % | 0.26 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 3.22 % | 10.93 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.76 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=204) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 8026| 41.4| 25.3| 16.2| 15:54| 05:15| |+/- 984|+/- 0.8|+/- 2.3|+/- 2.3|+/-01:18|+/-04:17| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=193) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6494| 22.0| 17.1| 4.8| 17:30| -2:45| |+/- 1776|+/- 1.0|+/- 2.5|+/- 2.4|+/-05:24|+/-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 | | 41.2 / 22.3 | 42.4 / 22.5 || 3.9 | 5.4 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 40.5 DDB / 18.5 CWB | 29.9 CDB / 21.7 DWB | 4.3 DB | 0.4 % | 38.7 DDB / 18.0 CWB | 30.9 CDB / 20.4 DWB | 5.2 DB | 1.0 % | 37.0 DDB / 17.5 CWB | 31.1 CDB / 19.4 DWB | 6.2 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 467 | 897 | 553 | 314 | mean annual degrees days |+/- 47 |+/- 72 |+/- 70 |+/- 52 | +/- 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| | 13282 | 7525 | 70 | 3 | mean annual degrees hours |+/- 1681 |+/- 1241 |+/- 86 |+/- 7 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 27.2| 26.8| 23.7| 19.4| 15.0| 11.8| 11.3| 13.0| 16.2| 19.5| 22.9| 25.3| Average Temperature (DB) | 1.8| 1.5| 1.3| 1.3| 0.9| 0.8| 0.8| 1.2| 1.3| 1.4| 1.6| 1.3| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 10| 8| 59| 331| 1275| 2510| 2908| 2213| 1159| 527| 162| 40| HD-Hr base 15 °C | 16| 11| 39| 150| 282| 427| 414| 445| 316| 176| 81| 25| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 110| 96| 314| 979| 2638| 4307| 4790| 3872| 2323| 1282| 554| 251| HD-Hr base 18 °C | 79| 68| 130| 309| 436| 516| 507| 617| 502| 332| 192| 91| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 3318| 2816| 1681| 473| 50| 2| 2| 32| 227| 720| 1537| 2424| CD-Hr base 24 °C | 930| 709| 494| 278| 58| 6| 8| 49| 168| 315| 603| 604| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2075| 1716| 883| 173| 7| 0| 0| 6| 82| 337| 832| 1414| CD-Hr base 27 °C | 726| 543| 345| 143| 12| 1| 1| 13| 80| 181| 426| 453| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 30| 26| 4| 1| 0| 0| 0| 0| 0| 0| 0| 7| NECD-Hr base 21 °C | 54| 56| 13| 5| 0| 0| 0| 0| 0| 1| 1| 12| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 4| 5| 3| 0| 0| 0| 0| 0| 0| 1| 0| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 15.3| 15.5| 13.8| 11.6| 9.6| 7.8| 7.0| 7.5| NaN| 10.6| 12.6| 13.9| Average Wet Bulb Temp (WB) | 1.4| 1.2| 1.2| 1.0| 0.8| 1.0| 0.8| 0.7| NaN| 0.7| 0.9| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 7.24% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 42.4| 41.3| 38.4| 33.0| 27.1| 22.8| 22.5| 26.6| 32.0| 36.6| 39.4| 40.9| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 41.1| 40.1| 36.9| 31.6| 26.0| 20.8| 21.1| 24.8| 29.8| 34.0| 37.4| 39.0| Design maximum DB | 27.4| 27.1| 23.7| 19.4| 15.1| 12.0| 11.1| 12.4| 15.9| 19.5| 23.6| 25.5| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 14.1| 13.8| 11.5| 8.6| 5.4| 3.2| 2.8| 3.4| 5.2| 6.9| 9.6| 12.2| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 3.66% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.1| 22.2| 20.0| 18.0| 15.9| 13.8| 13.1| 13.8| 16.0| 18.1| 19.6| 21.5| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.5| 21.3| 19.7| 17.3| 15.0| 13.5| 12.0| 12.8| 15.2| 16.7| 18.6| 20.0| Design maximum WB | 20.1| 19.7| 17.8| 15.5| 12.9| 11.3| 9.8| 10.3| 12.3| 14.1| 16.8| 18.0| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 8.9| 9.0| 7.5| 5.2| 3.2| 1.5| 1.0| 1.3| 2.9| 4.0| 6.1| 7.7| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|