Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(77) station Parramatta 45 years (1967-2011)| | BoM 66137 (WMO 94765) -33.92° latitude 150.99° longitude 7.5 m alt| | | |It is now 04-Jul-2013 06:37:08 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/77/PA_77_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/77/PA_77_DB.txt (Dry Design Day)| | B: CZ0511_NatHERS_1967-2011_w.txt => NEW33/77/PA_77_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/77/PA_77_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 35.5 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.40) => this Design DB was exceeded 10.3 days/year (incl std dev 4.1 days/year). 35.6 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 9.3 days/year (incl std dev 3.7 days/year). Design drybulb changes 6.4 °C per century (linear regression R² 0.51) ~> 39.5 °C mid century. 23.3 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.52) => this Design WB was exceeded 10.0 days/year (incl std dev 5.8 days/year). 23.2 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 10.8 days/year (incl std dev 6.1 days/year). Design wetbulb changes 11.6 °C per century (linear regression R²=0.80) ~> 30.2 °C mid century. 3.5 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 1.06) => this Heating DB was insufficient 10.4 days/year (incl std dev 5.6 days/year). 2.6 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 8.8 days/year (incl std dev 3.3 days/year). Design heating changes -1.5 °C per century (linear regression R²=-0.26) ~> 1.7 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 04:51 followed by maximum temperature at 14:35. Nighttime cooling rate 0.493 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 03:54 ~ Max at 14:54 Nighttime cooling rate 0.530 °/hr from 19:46 to 06:50 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at -1:13 ~ Max at 15:30 Nighttime cooling rate 0.380 °/hr from 19:58 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 | | 35.5 DDB / 20.2 CWB | 28.3 CDB / 23.3 DWB | 3.5 DB |11.3 DB| 32.0 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.30 % | 3.47 % | 3.77 % | 0.21 % | 0.47 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 3.59 % | 3.84 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.49 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=147) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7002| 36.0| 18.9| 17.1| 14:54| 03:54| |+/- 1259|+/- 1.1|+/- 4.0|+/- 4.0|+/-01:00|+/-05:36| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=190) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6493| 23.6| 18.1| 5.5| 15:30| -1:13| |+/- 1935|+/- 0.8|+/- 3.2|+/- 3.2|+/-03:06|+/-08:11| +/- 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 | | 36.0 / 23.2 | 37.7 / 23.8 || 2.8 | 6.1 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 34.9 DDB / 20.0 CWB | 27.8 CDB / 22.8 DWB | 3.3 DB | 0.4 % | 32.4 DDB / 19.5 CWB | 26.8 CDB / 21.8 DWB | 4.5 DB | 1.0 % | 30.2 DDB / 18.9 CWB | 26.1 CDB / 21.0 DWB | 5.5 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 531 | 1008 | 162 | 62 | mean annual degrees days |+/- 57 |+/- 82 |+/- 38 |+/- 21 | +/- 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| | 3879 | 1494 | 186 | 9 | mean annual degrees hours |+/- 909 |+/- 508 |+/- 231 |+/- 28 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.8| 22.4| 20.6| 17.6| 14.3| 11.8| 11.1| 12.4| 15.0| 17.4| 19.5| 21.5| Average Temperature (DB) | 1.2| 1.2| 1.0| 1.0| 0.8| 0.7| 0.7| 0.9| 1.2| 1.2| 1.3| 1.3| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 38| 42| 105| 494| 1420| 2505| 3036| 2479| 1440| 759| 312| 113| HD-Hr base 15 °C | 42| 48| 71| 223| 344| 381| 441| 387| 410| 319| 192| 91| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 210| 213| 472| 1356| 2857| 4271| 4926| 4147| 2705| 1712| 902| 429| HD-Hr base 18 °C | 153| 150| 203| 366| 454| 470| 499| 487| 563| 473| 381| 222| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 997| 787| 411| 114| 8| 0| 2| 11| 90| 271| 449| 739| CD-Hr base 24 °C | 363| 349| 206| 92| 16| 1| 7| 35| 78| 177| 284| 369| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 425| 310| 121| 24| 1| 0| 1| 2| 24| 101| 185| 302| CD-Hr base 27 °C | 218| 202| 96| 34| 5| 0| 4| 10| 30| 88| 169| 201| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 67| 63| 23| 1| 0| 0| 0| 0| 0| 1| 6| 25| NECD-Hr base 21 °C | 104| 95| 44| 4| 0| 0| 0| 1| 0| 4| 10| 49| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 5| 2| 1| 0| 0| 0| 0| 0| 0| 0| 0| 2| NECD-Hr base 24 °C | 19| 5| 3| 0| 0| 0| 0| 0| 0| 0| 1| 8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 17.8| 17.9| 16.5| 13.5| 10.8| 8.2| 7.2| 7.6| 9.9| 12.3| 14.4| 16.3| Average Wet Bulb Temp (WB) | 1.0| 0.9| 0.9| 1.1| 1.1| 1.2| 1.2| 1.2| 1.2| 1.1| 1.2| 0.9| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 5.09% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 38.3| 36.2| 33.0| 29.6| 25.3| 21.9| 22.6| 25.0| 29.6| 32.9| 34.8| 36.4| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 35.6| 35.0| 31.2| 28.4| 24.0| 20.6| 20.8| 23.4| 28.0| 31.3| 32.7| 34.4| Design maximum DB | 24.3| 24.2| 22.0| 18.8| 15.6| 13.0| 11.9| 13.2| 16.7| 20.0| 22.0| 23.9| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 12.3| 11.4| 10.1| 7.2| 4.7| 2.2| 1.3| 1.8| 3.4| 5.4| 8.2| 9.6| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 3.15% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.6| 22.6| 21.3| 18.5| 16.1| 14.0| 13.4| 14.0| 16.4| 18.3| 20.3| 21.6| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 23.4| 23.2| 22.0| 19.2| 17.2| 15.1| 14.1| 14.3| 16.7| 18.5| 20.8| 22.1| Design maximum WB | 20.9| 21.1| 19.5| 16.4| 14.6| 12.2| 10.5| 10.6| 13.8| 16.0| 18.3| 19.7| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 10.6| 10.6| 9.1| 6.3| 4.1| 1.6| 0.6| 0.9| 2.8| 4.5| 7.2| 8.2| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|