Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(72) station Roxby Downs 14 years (1998-2011)| | BoM 16096 (WMO 95658) -30.48° latitude 136.88° longitude 99.7 m alt| | | |It is now 04-Jul-2013 06:08:56 -> computational time was 2 minutes| | OUTPUTS | | INPUTS => NEW33/72/RX_72_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/72/RX_72_DB.txt (Dry Design Day)| | B: CZ0405_NatHERS_1998-2011_w.txt => NEW33/72/RX_72_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/72/RX_72_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 42.4 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.86) => this Design DB was exceeded 9.9 days/year (incl std dev 4.2 days/year). 42.5 ° 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 4.2 days/year). Design drybulb changes -0.1 °C per century (linear regression R² -0.00) ~> 42.4 °C mid century. 21.9 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.75) => this Design WB was exceeded 9.8 days/year (incl std dev 4.5 days/year). 22.0 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 9.2 days/year (incl std dev 4.2 days/year). Design wetbulb changes 3.8 °C per century (linear regression R²=0.16) ~> 23.7 °C mid century. -0.2 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.84) => this Heating DB was insufficient 10.0 days/year (incl std dev 5.3 days/year). -1.0 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 7.3 days/year (incl std dev 3.8 days/year). Design heating changes 28.1 °C per century (linear regression R²=0.46) ~> 11.7 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:47 followed by maximum temperature at 16:08. Nighttime cooling rate 0.717 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 05:47 ~ Max at 16:06 Nighttime cooling rate 0.880 °/hr from 19:55 to 06:57 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 02:29 ~ Max at 16:36 Nighttime cooling rate 0.627 °/hr from 19:60 to 07:9 (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 | | 42.4 DDB / 19.3 CWB | 30.7 CDB / 21.9 DWB | -0.2 DB |12.2 DB| 42.6 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.23 % | 3.36 % | 12.41 % | 0.41 % | 0.22 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 3.43 % | 12.68 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.64 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=82) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 8341| 42.7| 27.0| 15.7| 16:06| 05:47| |+/- 715|+/- 0.7|+/- 2.9|+/- 3.1|+/-01:18|+/-02:31| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=62) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 7315| 22.1| 18.2| 3.8| 16:36| 02:29| |+/- 1578|+/- 0.9|+/- 1.8|+/- 1.7|+/-04:18|+/-06:36| +/- 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 | | 42.4 / 22.5 | 43.3 / 22.5 || -0.1 | 3.9 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 41.7 DDB / 19.1 CWB | 30.8 CDB / 22.0 DWB | 0.7 DB | 0.4 % | 39.9 DDB / 18.4 CWB | 31.8 CDB / 20.9 DWB | 2.6 DB | 1.0 % | 38.2 DDB / 18.0 CWB | 32.2 CDB / 20.0 DWB | 4.2 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 466 | 837 | 707 | 417 | mean annual degrees days |+/- 89 |+/- 111 |+/- 88 |+/- 66 | +/- 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| | 16973 | 9999 | 81 | 2 | mean annual degrees hours |+/- 2112 |+/- 1588 |+/- 80 |+/- 5 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 29.8| 27.7| 24.6| 19.7| 15.1| 11.8| 11.6| 13.6| 17.9| 20.2| 24.4| 26.6| Average Temperature (DB) | 2.4| 2.3| 1.6| 1.7| 1.2| 1.4| 0.8| 1.3| 1.3| 1.9| 1.8| 1.3| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2| 5| 57| 403| 1480| 2687| 2928| 2144| 914| 451| 94| 11| HD-Hr base 15 °C | 3| 7| 54| 241| 474| 792| 520| 500| 360| 192| 68| 12| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 38| 57| 265| 1018| 2712| 4363| 4674| 3592| 1813| 1104| 335| 106| HD-Hr base 18 °C | 45| 59| 158| 397| 587| 908| 573| 639| 510| 403| 178| 73| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 4724| 3143| 2083| 587| 70| 2| 4| 61| 472| 876| 2044| 2907| CD-Hr base 24 °C | 1345| 1168| 701| 470| 88| 6| 9| 69| 186| 453| 871| 727| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 3147| 1961| 1142| 240| 12| 0| 0| 13| 194| 425| 1155| 1711| CD-Hr base 27 °C | 1076| 934| 478| 265| 23| 0| 0| 19| 94| 245| 653| 588| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21| 46| 1| 0| 0| 0| 0| 0| 0| 0| 1| 11| NECD-Hr base 21 °C | 39| 62| 2| 1| 0| 0| 0| 0| 0| 0| 3| 18| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 4| 3| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 16.0| 16.0| 14.0| 11.6| 9.1| 7.3| 6.8| 7.6| 9.7| 10.9| 13.4| 14.4| Average Wet Bulb Temp (WB) | 1.4| 2.0| 1.2| 1.5| 0.8| 1.4| 0.7| 1.1| 0.8| 0.7| 1.1| 0.6| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 8.29% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 43.7| 42.1| 39.5| 33.4| 27.8| 23.4| 24.3| 27.7| 34.9| 37.9| 39.3| 41.3| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 42.5| 41.0| 37.9| 32.4| 26.5| 21.9| 22.2| 25.9| 31.6| 35.0| 38.1| 39.6| Design maximum DB | 30.3| 28.2| 25.1| 19.3| 15.0| 12.6| 11.3| 13.0| 18.2| 21.1| 24.9| 26.4| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 16.5| 15.3| 11.3| 6.7| 2.9| -0.1| 0.1| 0.9| 4.4| 6.3| 9.8| 13.6| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 5.32% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.1| 22.8| 19.9| 18.1| 15.4| 13.9| 13.1| 14.1| 16.9| 17.9| 20.6| 21.9| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.9| 22.0| 19.6| 18.0| 14.6| 13.1| 12.0| 13.4| 15.9| 16.8| 18.9| 20.2| Design maximum WB | 19.6| 20.4| 17.0| 15.1| 11.7| 10.4| 8.9| 10.2| 12.5| 13.8| 16.9| 18.5| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 8.7| 8.5| 6.5| 3.3| 0.5| -1.7| -1.6| -1.3| 1.3| 2.5| 5.8| 7.4| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|