Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(79) station Blue Mountains 21 years (1991-2011)| | BoM 63292 (WMO 94743) -33.62° latitude 150.27° longitude 1080.0 m alt| | | |It is now 04-Jul-2013 06:43:20 -> computational time was 3 minutes| | OUTPUTS | | INPUTS => NEW33/79/BL_79_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/79/BL_79_DB.txt (Dry Design Day)| | B: CZ0601_NatHERS_1991-2011_w.txt => NEW33/79/BL_79_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/79/BL_79_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 30.6 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.54) => this Design DB was exceeded 10.1 days/year (incl std dev 4.3 days/year). 30.8 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 9.0 days/year (incl std dev 4.1 days/year). Design drybulb changes 7.8 °C per century (linear regression R² 0.28) ~> 34.6 °C mid century. 19.6 ° Design WB = mean of 10th highest 3PM each year + (std dev * 2.28) => this Design WB was exceeded 9.6 days/year (incl std dev 4.0 days/year). 19.7 ° 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 4.0 days/year). Design wetbulb changes -1.0 °C per century (linear regression R²=-0.07) ~> 19.2 °C mid century. -0.3 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.87) => this Heating DB was insufficient 9.9 days/year (incl std dev 3.1 days/year). -0.8 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 8.6 days/year (incl std dev 3.0 days/year). Design heating changes 1.9 °C per century (linear regression R²=0.21) ~> 0.1 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 03:36 followed by maximum temperature at 15:14. Nighttime cooling rate 0.227 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 01:31 ~ Max at 15:30 Nighttime cooling rate 0.218 °/hr from 19:46 to 06:50 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 00:51 ~ Max at 15:06 Nighttime cooling rate 0.177 °/hr from 19:59 to 06:52 (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 | | 30.6 DDB / 16.0 CWB | 25.0 CDB / 19.6 DWB | -0.3 DB |10.0 DB| 30.9 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.24 % | 3.47 % | 2.28 % | 0.21 % | 0.64 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 3.58 % | 2.36 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.43 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=74) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7884| 31.2| 18.1| 13.1| 15:30| 01:31| |+/- 1042|+/- 1.0|+/- 2.6|+/- 2.7|+/-01:12|+/-06:15| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=94) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6003| 19.8| 12.8| 7.1| 15:06| 00:51| |+/- 2011|+/- 0.9|+/- 3.5|+/- 3.4|+/-02:24|+/-07:11| +/- 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 | | 30.6 / 19.5 | 32.0 / 20.1 || -1.1 | 0.1 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 29.6 DDB / 15.8 CWB | 24.2 CDB / 19.0 DWB | -0.7 DB | 0.4 % | 27.5 DDB / 15.3 CWB | 22.9 CDB / 17.9 DWB | 0.2 DB | 1.0 % | 25.5 DDB / 14.6 CWB | 21.7 CDB / 16.9 DWB | 1.0 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 1626 | 2459 | 32 | 10 | mean annual degrees days |+/- 141 |+/- 180 |+/- 19 |+/- 7 | +/- 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| | 770 | 231 | 4 | 0 | mean annual degrees hours |+/- 451 |+/- 170 |+/- 9 |+/- 1 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 17.4| 17.0| 14.8| 11.9| 9.0| 6.4| 5.2| 6.3| 9.0| 11.6| 13.8| 15.7| Average Temperature (DB) | 1.9| 1.7| 1.4| 1.4| 1.5| 1.6| 0.9| 1.2| 1.1| 1.2| 1.7| 1.5| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 722| 662| 1258| 2499| 4283| 5889| 6946| 6211| 4303| 3007| 1992| 1241| HD-Hr base 15 °C | 548| 339| 423| 740| 920| 1037| 614| 785| 626| 562| 603| 400| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1752| 1646| 2703| 4274| 6356| 7937| 9084| 8328| 6221| 4760| 3450| 2505| HD-Hr base 18 °C | 846| 606| 634| 903| 1013| 1079| 614| 812| 701| 702| 803| 609| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 297| 192| 51| 1| 0| 0| 0| 0| 0| 7| 84| 138| CD-Hr base 24 °C | 187| 209| 88| 5| 1| 0| 0| 0| 1| 11| 118| 130| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 100| 62| 10| 0| 0| 0| 0| 0| 0| 0| 22| 36| CD-Hr base 27 °C | 83| 96| 24| 0| 0| 0| 0| 0| 0| 1| 42| 45| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2| 2| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 21 °C | 8| 4| 0| 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 | 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 12.4| 12.9| 11.1| 8.3| 6.2| 4.1| 2.8| 3.1| 5.1| 7.2| 9.4| 10.9| Average Wet Bulb Temp (WB) | 2.1| 1.3| 0.9| 1.2| 1.2| 1.4| 1.0| 1.0| 1.1| 1.0| 1.6| 1.0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 5.68% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 32.3| 30.6| 26.6| 22.4| 18.4| 15.1| 13.7| 16.6| 21.5| 24.5| 27.8| 29.6| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 30.7| 29.6| 26.5| 21.8| 17.8| 14.7| 12.6| 16.1| 20.5| 23.6| 26.9| 28.5| Design maximum DB | 20.7| 20.7| 18.0| 14.2| 12.1| 10.4| 7.7| 9.6| 12.6| 15.4| 18.1| 19.1| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 7.9| 7.6| 6.0| 3.3| 1.1| -0.7| -1.4| -1.4| -0.3| 1.2| 3.5| 4.8| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 3.69% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.1| 20.5| 18.4| 14.9| 12.6| 10.4| 8.6| 10.2| 12.5| 15.5| 17.9| 19.1| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.7| 19.6| 17.4| 14.2| 12.2| 10.8| 8.1| 9.3| 11.8| 14.2| 16.9| 17.6| Design maximum WB | 16.0| 16.5| 14.1| 11.2| 9.9| 9.1| 6.2| 6.7| 9.1| 11.1| 13.7| 14.0| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 4.2| 5.4| 3.4| 1.0| -0.8| -2.5| -3.0| -2.9| -1.9| -0.8| 1.1| 2.3| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|