Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(58) station Albany 45 years (1967-2011)| | BoM 9741 (WMO 94802) -34.94° latitude 117.80° longitude 69.0 m alt| | | |It is now 04-Jul-2013 04:45:45 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/58/AB_58_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/58/AB_58_DB.txt (Dry Design Day)| | B: CZ0605_NatHERS_1967-2011_w.txt => NEW33/58/AB_58_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/58/AB_58_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 31.4 °C Design DB = mean of 10th highest 3PM each year + (std dev * 2.44) => this Design DB was exceeded 10.5 days/year (incl std dev 2.7 days/year). 31.7 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 9.9 days/year (incl std dev 2.6 days/year). Design drybulb changes 1.1 °C per century (linear regression R² 0.11) ~> 32.3 °C mid century. 20.0 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.63) => this Design WB was exceeded 9.9 days/year (incl std dev 4.1 days/year). 20.0 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 9.9 days/year (incl std dev 4.1 days/year). Design wetbulb changes -0.5 °C per century (linear regression R²=-0.14) ~> 19.7 °C mid century. 4.9 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 1.00) => this Heating DB was insufficient 9.9 days/year (incl std dev 4.9 days/year). 3.8 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 9.7 days/year (incl std dev 4.1 days/year). Design heating changes -1.4 °C per century (linear regression R²=-0.31) ~> 3.0 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 04:00 followed by maximum temperature at 14:35. Nighttime cooling rate 0.286 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 05:05 ~ Max at 14:18 Nighttime cooling rate 0.458 °/hr from 19:46 to 06:44 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at -1:27 ~ Max at 15:00 Nighttime cooling rate 0.324 °/hr from 19:39 to 06:48 (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 | | 31.4 DDB / 17.9 CWB | 25.7 CDB / 20.0 DWB | 4.9 DB |13.1 DB| 26.5 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.31 % | 2.69 % | 1.84 % | 0.29 % | 0.52 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 2.84 % | 1.94 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.56 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=117) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 6613| 32.4| 14.7| 17.7| 14:18| 05:05| |+/- 1473|+/- 1.4|+/- 2.5|+/- 2.6|+/-01:12|+/-02:34| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=384) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6249| 20.1| 15.2| 4.9| 15:00| -1:27| |+/- 1945|+/- 0.7|+/- 1.6|+/- 1.6|+/-02:12|+/-08:22| +/- 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 | | 32.1 / 20.2 | 34.7 / 20.8 || 4.1 | 6.6 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 30.6 DDB / 17.9 CWB | 25.3 CDB / 19.8 DWB | 4.6 DB | 0.4 % | 27.7 DDB / 17.5 CWB | 23.9 CDB / 19.0 DWB | 5.6 DB | 1.0 % | 25.5 DDB / 17.1 CWB | 22.8 CDB / 18.3 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| | 676 | 1374 | 37 | 14 | mean annual degrees days |+/- 59 |+/- 87 |+/- 10 |+/- 5 | +/- 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| | 885 | 339 | 6 | 0 | mean annual degrees hours |+/- 233 |+/- 120 |+/- 10 |+/- 0 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 18.4| 18.8| 17.8| 15.9| 13.8| 11.9| 11.1| 11.3| 12.1| 13.4| 15.2| 17.1| Average Temperature (DB) | 0.7| 0.8| 0.8| 0.8| 0.7| 0.7| 0.5| 0.7| 0.6| 0.7| 0.8| 0.9| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 257| 163| 337| 741| 1464| 2296| 2831| 2784| 2252| 1724| 923| 464| HD-Hr base 15 °C | 105| 94| 150| 193| 331| 382| 328| 391| 307| 356| 256| 157| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 950| 705| 1157| 1957| 3119| 4171| 4859| 4772| 4079| 3450| 2288| 1471| HD-Hr base 18 °C | 213| 245| 315| 347| 442| 446| 361| 465| 365| 459| 400| 347| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 221| 215| 182| 70| 6| 0| 0| 0| 1| 19| 56| 114| CD-Hr base 24 °C | 128| 84| 97| 63| 13| 0| 0| 1| 3| 26| 52| 90| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 91| 85| 73| 22| 1| 0| 0| 0| 0| 6| 21| 42| CD-Hr base 27 °C | 73| 46| 55| 31| 4| 0| 0| 0| 0| 10| 25| 45| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 3| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 21 °C | 3| 7| 3| 0| 0| 0| 0| 0| 0| 0| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 14.2| 14.7| 14.1| 12.9| 11.3| 9.8| 9.0| 9.0| 9.7| 10.7| 12.1| 13.2| Average Wet Bulb Temp (WB) | 0.5| 0.9| 0.8| 0.6| 0.7| 0.6| 0.5| 0.6| 0.6| 0.7| 0.6| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 4.95% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 35.9| 35.3| 34.2| 29.8| 24.9| 20.4| 19.2| 20.7| 23.5| 26.6| 30.3| 32.7| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 31.5| 31.4| 30.7| 27.6| 23.1| 19.5| 18.5| 19.6| 21.5| 23.6| 26.6| 28.6| Design maximum DB | 18.4| 19.1| 18.5| 17.4| 15.8| 13.9| 12.8| 12.9| 12.9| 14.0| 15.8| 17.2| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 7.9| 9.3| 7.8| 6.5| 5.0| 3.5| 3.0| 3.3| 3.7| 4.4| 5.9| 7.1| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 5.66% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.6| 21.2| 20.3| 19.3| 17.1| 15.3| 14.2| 14.2| 15.7| 17.3| 18.9| 19.6| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.5| 20.1| 19.2| 18.0| 16.1| 14.4| 13.5| 13.5| 14.6| 16.1| 17.6| 18.6| Design maximum WB | 16.9| 17.7| 17.1| 15.7| 14.1| 12.0| 11.1| 11.1| 11.5| 12.8| 14.3| 15.7| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 7.0| 7.8| 7.0| 5.9| 4.4| 3.1| 2.5| 2.8| 3.2| 3.9| 5.3| 6.5| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|