Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(55) station Esperance 45 years (1967-2011)| | BoM 9789 (WMO 94638) -33.83° latitude 121.89° longitude 27.0 m alt| | | |It is now 04-Jul-2013 04:25:46 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/55/EP_55_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/55/EP_55_DB.txt (Dry Design Day)| | B: CZ0510_NatHERS_1967-2011_w.txt => NEW33/55/EP_55_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/55/EP_55_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 35.3 °C Design DB = mean of 10th highest 3PM each year + (std dev * 2.24) => this Design DB was exceeded 10.0 days/year (incl std dev 3.4 days/year). 35.9 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 8.6 days/year (incl std dev 3.1 days/year). Design drybulb changes 9.3 °C per century (linear regression R² 0.53) ~> 41.5 °C mid century. 20.3 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.23) => this Design WB was exceeded 9.9 days/year (incl std dev 3.9 days/year). 20.6 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 8.5 days/year (incl std dev 3.5 days/year). Design wetbulb changes 1.0 °C per century (linear regression R²=0.16) ~> 21.2 °C mid century. 6.4 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.62) => this Heating DB was insufficient 10.2 days/year (incl std dev 4.4 days/year). 4.8 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 4.6 days/year (incl std dev 2.3 days/year). Design heating changes -2.5 °C per century (linear regression R²=-0.26) ~> 3.2 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 04:24 followed by maximum temperature at 14:18. Nighttime cooling rate 0.332 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 04:34 ~ Max at 14:42 Nighttime cooling rate 0.470 °/hr from 19:47 to 06:45 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 00:18 ~ Max at 15:42 Nighttime cooling rate 0.408 °/hr from Inf:NaN to 06:45 (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 | | 35.3 DDB / 17.9 CWB | 25.9 CDB / 20.3 DWB | 6.4 DB |14.9 DB| 28.9 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.25 % | 4.37 % | 3.24 % | 0.36 % | 0.67 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 4.45 % | 3.40 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.59 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=75) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 6486| 36.5| 16.3| 20.2| 14:42| 04:34| |+/- 1526|+/- 1.6|+/- 2.5|+/- 2.7|+/-01:12|+/-03:41| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=425) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6452| 20.4| 15.3| 5.1| 15:42| 00:18| |+/- 1428|+/- 0.6|+/- 1.9|+/- 1.9|+/-03:12|+/-07:57| +/- 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 | | 35.4 / 20.6 | 38.0 / 21.0 || 5.6 | 7.7 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 33.9 DDB / 17.6 CWB | 25.9 CDB / 20.3 DWB | 6.0 DB | 0.4 % | 30.3 DDB / 17.1 CWB | 24.5 CDB / 19.5 DWB | 6.8 DB | 1.0 % | 27.6 DDB / 16.9 CWB | 23.7 CDB / 18.9 DWB | 7.6 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 461 | 1028 | 73 | 32 | mean annual degrees days |+/- 88 |+/- 148 |+/- 16 |+/- 12 | +/- 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| | 1760 | 764 | 11 | 0 | mean annual degrees hours |+/- 382 |+/- 285 |+/- 18 |+/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.0| 20.3| 19.3| 17.5| 15.1| 13.0| 12.1| 12.6| 13.8| 15.1| 17.0| 18.6| Average Temperature (DB) | 0.9| 1.0| 0.9| 0.9| 1.0| 0.9| 0.8| 0.9| 0.9| 0.9| 1.0| 1.0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 84| 68| 153| 381| 970| 1792| 2292| 2090| 1532| 1047| 467| 183| HD-Hr base 15 °C | 50| 50| 76| 175| 352| 462| 437| 431| 378| 300| 193| 91| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 471| 354| 643| 1249| 2372| 3521| 4183| 3904| 3139| 2493| 1493| 851| HD-Hr base 18 °C | 190| 189| 254| 386| 558| 592| 538| 576| 527| 468| 402| 308| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 377| 342| 302| 143| 28| 0| 1| 8| 25| 96| 182| 256| CD-Hr base 24 °C | 146| 163| 135| 94| 35| 1| 2| 17| 29| 73| 127| 157| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 175| 142| 128| 53| 6| 0| 0| 1| 6| 40| 88| 126| CD-Hr base 27 °C | 104| 105| 90| 47| 11| 0| 0| 5| 11| 42| 72| 102| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2| 7| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 21 °C | 5| 16| 3| 1| 0| 0| 0| 0| 0| 0| 0| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 0| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 15.2| 15.6| 14.8| 13.5| 11.6| 9.8| 9.1| 9.4| 10.3| 11.1| 12.7| 13.9| Average Wet Bulb Temp (WB) | 0.7| 0.8| 0.7| 0.7| 0.6| 0.6| 0.5| 0.6| 0.6| 0.6| 0.7| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 4.16% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 38.5| 36.5| 35.8| 32.0| 27.0| 22.2| 21.9| 24.6| 27.5| 32.1| 35.2| 36.4| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 35.4| 34.3| 33.3| 30.4| 25.9| 21.9| 21.0| 23.0| 25.4| 29.0| 32.1| 33.4| Design maximum DB | 20.5| 21.0| 20.0| 18.6| 16.7| 14.6| 13.5| 13.5| 14.5| 16.0| 18.2| 19.7| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 11.2| 11.5| 10.2| 8.5| 7.1| 5.5| 4.9| 5.2| 5.9| 6.5| 8.2| 9.8| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 6.06% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.8| 21.3| 20.1| 19.1| 17.1| 15.1| 14.4| 14.7| 15.6| 17.1| 18.5| 19.8| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.8| 20.4| 19.4| 18.2| 16.1| 14.3| 13.4| 13.7| 14.8| 16.0| 17.5| 18.8| Design maximum WB | 17.6| 18.3| 17.5| 16.2| 13.9| 11.8| 11.0| 10.8| 12.1| 13.4| 15.0| 16.5| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 9.1| 9.6| 8.7| 7.3| 5.8| 4.1| 3.6| 4.0| 4.7| 5.3| 6.8| 8.0| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|