Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(65) station Orange 45 years (1967-2011)| | BoM 63303 (WMO 95726) -33.38° latitude 149.13° longitude 948.4 m alt| | | |It is now 04-Jul-2013 05:26:49 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/65/OR_65_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/65/OR_65_DB.txt (Dry Design Day)| | B: CZ0702_NatHERS_1967-2011_w.txt => NEW33/65/OR_65_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/65/OR_65_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 * 1.30) => this Design DB was exceeded 9.7 days/year (incl std dev 4.8 days/year). 31.6 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 8.9 days/year (incl std dev 4.5 days/year). Design drybulb changes 6.3 °C per century (linear regression R² 0.43) ~> 35.4 °C mid century. 19.4 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.61) => this Design WB was exceeded 10.2 days/year (incl std dev 5.0 days/year). 19.5 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 8.6 days/year (incl std dev 4.4 days/year). Design wetbulb changes 3.7 °C per century (linear regression R²=0.46) ~> 21.8 °C mid century. -1.9 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 1.03) => this Heating DB was insufficient 10.1 days/year (incl std dev 5.3 days/year). -3.3 ° 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 5.0 days/year). Design heating changes -3.3 °C per century (linear regression R²=-0.36) ~> -5.3 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 04:18 followed by maximum temperature at 15:15. Nighttime cooling rate 0.436 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 04:52 ~ Max at 15:24 Nighttime cooling rate 0.796 °/hr from 19:53 to 06:39 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 01:35 ~ Max at 15:06 Nighttime cooling rate 0.477 °/hr from 19:49 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 | | 31.4 DDB / 16.5 CWB | 24.7 CDB / 19.4 DWB | -1.9 DB |13.0 DB| 33.3 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.21 % | 3.55 % | 3.97 % | 0.23 % | 0.57 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 3.64 % | 4.06 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.43 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=192) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7237| 31.7| 15.7| 16.0| 15:24| 04:52| |+/- 1353|+/- 0.7|+/- 2.7|+/- 2.7|+/-01:12|+/-01:43| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=234) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6256| 19.6| 14.3| 5.3| 15:06| 01:35| |+/- 1590|+/- 0.7|+/- 2.0|+/- 1.8|+/-03:00|+/-06:21| +/- 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 | | 31.1 / 19.4 | 32.3 / 20.0 || -2.8 | 0.0 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 30.4 DDB / 16.2 CWB | 24.4 CDB / 19.0 DWB | -2.2 DB | 0.4 % | 28.6 DDB / 15.8 CWB | 23.5 CDB / 18.1 DWB | -1.1 DB | 1.0 % | 26.8 DDB / 15.4 CWB | 22.8 CDB / 17.3 DWB | -0.1 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 1698 | 2487 | 50 | 15 | mean annual degrees days |+/- 118 |+/- 142 |+/- 26 |+/- 11 | +/- 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| | 1198 | 353 | 2 | 0 | mean annual degrees hours |+/- 635 |+/- 259 |+/- 6 |+/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.0| 18.4| 15.7| 11.7| 8.2| 5.6| 4.6| 5.7| 8.3| 11.3| 14.2| 17.0| Average Temperature (DB) | 1.6| 1.4| 1.2| 1.1| 0.9| 0.8| 0.8| 1.0| 1.2| 1.1| 1.8| 1.4| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 491| 462| 1194| 2724| 4837| 6458| 7337| 6590| 4736| 3096| 1835| 991| HD-Hr base 15 °C | 287| 252| 378| 566| 629| 575| 575| 704| 726| 550| 556| 316| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1242| 1209| 2408| 4408| 6918| 8526| 9476| 8711| 6694| 4871| 3211| 2021| HD-Hr base 18 °C | 483| 417| 515| 659| 643| 576| 575| 726| 782| 678| 759| 498| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 472| 305| 89| 3| 0| 0| 0| 0| 0| 6| 91| 232| CD-Hr base 24 °C | 294| 244| 120| 10| 0| 0| 0| 0| 1| 11| 164| 199| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 155| 95| 18| 0| 0| 0| 0| 0| 0| 0| 26| 59| CD-Hr base 27 °C | 134| 115| 37| 2| 0| 0| 0| 0| 0| 1| 63| 72| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| NECD-Hr base 21 °C | 0| 5| 1| 0| 0| 0| 0| 0| 0| 0| 0| 4| +/- 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| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 13.4| 13.6| 11.5| 8.5| 6.1| 4.0| 3.1| 3.6| 5.6| 7.9| 10.0| 11.7| Average Wet Bulb Temp (WB) | 1.3| 1.1| 1.0| 1.2| 1.0| 0.9| 0.9| 0.9| 1.0| 1.0| 1.1| 1.1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 5.38% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 31.9| 30.6| 27.7| 23.0| 18.5| 14.3| 13.3| 16.0| 20.5| 23.8| 27.3| 29.9| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 31.5| 30.8| 27.7| 22.6| 18.0| 14.1| 12.6| 15.8| 19.8| 23.2| 27.4| 29.7| Design maximum DB | 18.5| 19.0| 16.1| 12.9| 10.4| 8.3| 7.3| 7.9| 10.9| 13.5| 15.8| 17.3| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 6.5| 7.0| 3.9| 0.2| -1.5| -3.2| -3.7| -3.0| -1.9| 0.0| 1.8| 3.9| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 3.62% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.5| 19.3| 18.0| 15.3| 12.8| 10.3| 9.4| 10.3| 12.9| 15.8| 17.9| 19.0| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.2| 19.5| 17.7| 15.2| 13.0| 10.3| 9.2| 10.4| 13.0| 15.4| 17.2| 18.5| Design maximum WB | 16.6| 16.8| 15.0| 12.4| 10.2| 8.1| 7.3| 7.1| 9.8| 11.7| 13.8| 15.2| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 4.5| 5.5| 2.8| -0.6| -2.1| -3.7| -4.2| -3.5| -2.4| -0.7| 0.8| 2.4| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|