Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(62) station Moorabbin 45 years (1967-2011)| | BoM 86077 (WMO 94870) -37.98° latitude 145.10° longitude 12.7 m alt| | | |It is now 04-Jul-2013 05:09:19 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/62/MR_62_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/62/MR_62_DB.txt (Dry Design Day)| | B: CZ0611_NatHERS_1967-2011_w.txt => NEW33/62/MR_62_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/62/MR_62_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 34.4 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.02) => this Design DB was exceeded 9.9 days/year (incl std dev 4.0 days/year). 35.3 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 8.2 days/year (incl std dev 3.5 days/year). Design drybulb changes 13.3 °C per century (linear regression R² 0.61) ~> 43.4 °C mid century. 21.0 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.49) => this Design WB was exceeded 9.6 days/year (incl std dev 5.3 days/year). 21.1 ° 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 5.3 days/year). Design wetbulb changes 5.1 °C per century (linear regression R²=0.50) ~> 24.1 °C mid century. 2.8 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.87) => this Heating DB was insufficient 10.0 days/year (incl std dev 4.5 days/year). 1.4 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 7.4 days/year (incl std dev 3.3 days/year). Design heating changes -6.1 °C per century (linear regression R²=-0.45) ~> -2.3 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 03:60 followed by maximum temperature at 15:18. Nighttime cooling rate 0.323 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 04:08 ~ Max at 15:30 Nighttime cooling rate 0.632 °/hr from 20:0 to 06:44 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 01:08 ~ Max at 15:12 Nighttime cooling rate 0.446 °/hr from 19:55 to 06:53 (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 | | 34.4 DDB / 18.5 CWB | 27.7 CDB / 21.0 DWB | 2.8 DB |12.6 DB| 31.6 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.35 % | 2.31 % | 2.44 % | 0.29 % | 0.39 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 2.46 % | 2.59 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.60 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=132) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 6981| 34.8| 16.4| 18.4| 15:30| 04:08| |+/- 1393|+/- 1.0|+/- 4.0|+/- 4.0|+/-01:18|+/-04:36| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=223) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6291| 21.1| 15.3| 5.8| 15:12| 01:08| |+/- 1730|+/- 0.7|+/- 2.3|+/- 2.3|+/-02:00|+/-07:31| +/- 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 | | 35.3 / 21.2 | 37.2 / 21.7 || 2.2 | 4.0 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 34.0 DDB / 18.4 CWB | 27.5 CDB / 20.7 DWB | 2.9 DB | 0.4 % | 31.3 DDB / 17.9 CWB | 26.5 CDB / 19.7 DWB | 4.2 DB | 1.0 % | 28.6 DDB / 17.3 CWB | 25.5 CDB / 18.8 DWB | 5.3 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 831 | 1551 | 83 | 38 | mean annual degrees days |+/- 119 |+/- 151 |+/- 35 |+/- 20 | +/- 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| | 1987 | 913 | 26 | 1 | mean annual degrees hours |+/- 846 |+/- 473 |+/- 53 |+/- 4 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.4| 19.6| 17.7| 14.8| 12.5| 10.3| 9.8| 10.6| 12.1| 13.9| 15.9| 17.7| Average Temperature (DB) | 1.5| 1.3| 1.1| 1.0| 0.7| 0.8| 0.8| 0.8| 1.0| 0.9| 1.0| 1.2| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 271| 209| 478| 1186| 2072| 3274| 3712| 3234| 2352| 1680| 954| 525| HD-Hr base 15 °C | 193| 134| 270| 361| 380| 506| 546| 514| 501| 400| 328| 258| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 940| 774| 1413| 2589| 3942| 5302| 5828| 5277| 4155| 3292| 2212| 1501| HD-Hr base 18 °C | 429| 335| 445| 533| 465| 522| 563| 570| 585| 522| 507| 456| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 559| 512| 273| 45| 1| 0| 0| 0| 6| 62| 179| 349| CD-Hr base 24 °C | 390| 302| 194| 58| 3| 0| 0| 0| 17| 80| 146| 269| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 294| 247| 111| 9| 0| 0| 0| 0| 1| 17| 69| 165| CD-Hr base 27 °C | 246| 187| 105| 19| 0| 0| 0| 0| 4| 30| 72| 158| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 13| 10| 0| 0| 0| 0| 0| 0| 0| 0| 1| 1| NECD-Hr base 21 °C | 25| 30| 1| 0| 0| 0| 0| 0| 0| 0| 4| 7| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 1| 3| 0| 0| 0| 0| 0| 0| 0| 0| 0| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 14.5| 14.8| 13.5| 11.4| 9.9| 8.1| 7.5| 7.8| 8.9| 10.2| 11.9| 13.0| Average Wet Bulb Temp (WB) | 1.2| 1.0| 0.9| 0.8| 0.6| 0.7| 0.6| 0.6| 0.6| 0.6| 0.9| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 5.81% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 36.1| 35.5| 32.6| 26.9| 21.9| 17.7| 16.7| 19.4| 23.0| 27.6| 31.2| 34.0| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 34.6| 34.0| 31.0| 25.9| 21.2| 16.9| 16.0| 18.4| 21.5| 26.0| 29.2| 31.6| Design maximum DB | 22.0| 21.8| 19.9| 17.0| 14.7| 12.3| 11.3| 12.3| 15.0| 16.5| 18.0| 19.5| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 9.0| 9.7| 7.7| 5.3| 3.9| 1.8| 1.6| 2.3| 3.2| 4.4| 6.2| 8.0| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 4.44% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.0| 21.0| 19.5| 16.9| 15.0| 12.8| 11.7| 12.6| 14.6| 16.9| 18.7| 19.9| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.1| 20.5| 19.5| 16.8| 14.9| 12.4| 11.5| 12.3| 14.0| 16.3| 18.2| 19.4| Design maximum WB | 17.9| 18.3| 16.9| 14.2| 12.4| 10.5| 9.3| 9.7| 11.3| 13.1| 15.1| 16.5| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 7.4| 8.4| 6.7| 4.6| 3.3| 1.3| 1.0| 1.6| 2.4| 3.7| 5.2| 6.8| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|