Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(63) station Warrnambool 28 years (1984-2011)| | BoM 90186 (WMO 94837) -38.29° latitude 142.45° longitude 71.4 m alt| | | |It is now 04-Jul-2013 05:13:28 -> computational time was 4 minutes| | OUTPUTS | | INPUTS => NEW33/63/WR_63_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/63/WR_63_DB.txt (Dry Design Day)| | B: CZ0613_NatHERS_1984-2011_w.txt => NEW33/63/WR_63_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/63/WR_63_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 34.0 °C Design DB = mean of 10th highest 3PM each year + (std dev * 2.01) => this Design DB was exceeded 10.1 days/year (incl std dev 3.7 days/year). 34.0 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 10.1 days/year (incl std dev 3.7 days/year). Design drybulb changes 9.9 °C per century (linear regression R² 0.46) ~> 39.1 °C mid century. 20.4 ° Design WB = mean of 10th highest 3PM each year + (std dev * 2.16) => this Design WB was exceeded 10.5 days/year (incl std dev 4.3 days/year). 20.4 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 9.5 days/year (incl std dev 3.9 days/year). Design wetbulb changes 6.0 °C per century (linear regression R²=0.64) ~> 23.6 °C mid century. 2.5 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.93) => this Heating DB was insufficient 9.9 days/year (incl std dev 3.6 days/year). 1.3 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 9.0 days/year (incl std dev 3.7 days/year). Design heating changes -2.6 °C per century (linear regression R²=-0.28) ~> -0.0 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 03:00 followed by maximum temperature at 14:49. Nighttime cooling rate 0.258 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 03:15 ~ Max at 15:00 Nighttime cooling rate 0.445 °/hr from 19:59 to 06:46 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 01:32 ~ Max at 15:42 Nighttime cooling rate 0.369 °/hr from 19:53 to 06:56 (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 | | 34.0 DDB / 18.2 CWB | 27.3 CDB / 20.4 DWB | 2.5 DB |14.6 DB| 31.5 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.27 % | 1.65 % | 1.64 % | 0.29 % | 0.53 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 1.76 % | 1.79 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.52 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=64) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 6755| 35.0| 15.0| 20.0| 15:00| 03:15| |+/- 1845|+/- 1.6|+/- 3.8|+/- 3.7|+/-01:18|+/-05:06| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=129) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6225| 20.8| 13.1| 7.8| 15:42| 01:32| |+/- 1971|+/- 0.9|+/- 2.8|+/- 2.7|+/-03:24|+/-06:18| +/- 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 | | 34.3 / 20.6 | 36.4 / 21.4 || 1.5 | 3.2 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 32.9 DDB / 18.0 CWB | 27.0 CDB / 20.1 DWB | 2.1 DB | 0.4 % | 29.5 DDB / 17.4 CWB | 25.5 CDB / 18.9 DWB | 3.3 DB | 1.0 % | 26.4 DDB / 17.1 CWB | 24.1 CDB / 18.0 DWB | 4.4 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 1113 | 1948 | 51 | 24 | mean annual degrees days |+/- 75 |+/- 95 |+/- 17 |+/- 10 | +/- 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| | 1231 | 581 | 20 | 2 | mean annual degrees hours |+/- 398 |+/- 241 |+/- 26 |+/- 7 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 16.9| 17.2| 15.9| 13.6| 11.5| 9.6| 9.0| 9.6| 10.7| 12.0| 13.9| 15.4| Average Temperature (DB) | 1.2| 1.3| 0.8| 0.9| 0.6| 0.7| 0.5| 0.7| 0.6| 0.6| 1.0| 1.0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 697| 543| 901| 1648| 2688| 3698| 4217| 3862| 3091| 2581| 1646| 1136| HD-Hr base 15 °C | 238| 185| 239| 394| 375| 441| 385| 425| 343| 321| 365| 278| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1821| 1524| 2220| 3273| 4659| 5744| 6349| 5952| 5023| 4438| 3218| 2524| HD-Hr base 18 °C | 433| 375| 373| 504| 426| 449| 388| 459| 404| 378| 507| 438| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 328| 323| 218| 51| 1| 0| 0| 0| 1| 23| 98| 188| CD-Hr base 24 °C | 186| 229| 127| 61| 4| 0| 0| 0| 5| 30| 75| 144| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 174| 166| 100| 14| 0| 0| 0| 0| 0| 5| 33| 90| CD-Hr base 27 °C | 112| 140| 79| 29| 0| 0| 0| 0| 1| 9| 33| 88| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 7| 8| 2| 0| 0| 0| 0| 0| 0| 1| 1| 0| NECD-Hr base 21 °C | 17| 17| 6| 1| 0| 0| 0| 0| 0| 3| 4| 1| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 1| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 24 °C | 7| 3| 1| 0| 0| 0| 0| 0| 0| 1| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 13.1| 13.4| 12.6| 11.0| 9.7| 8.3| 7.6| 7.9| 8.7| 9.7| 11.2| 12.1| Average Wet Bulb Temp (WB) | 0.9| 1.0| 0.8| 0.8| 0.7| 0.8| 0.5| 0.6| 0.6| 0.6| 1.0| 0.9| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 4.80% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 37.6| 36.6| 34.4| 28.3| 22.2| 17.6| 16.1| 18.8| 21.9| 26.5| 30.9| 33.7| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 33.9| 34.1| 31.9| 27.1| 21.0| 16.3| 15.3| 18.0| 20.7| 24.7| 28.7| 31.1| Design maximum DB | 19.5| 19.5| 18.1| 16.0| 14.0| 11.8| 10.8| 11.2| 12.7| 14.7| 16.9| 17.5| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 5.6| 6.2| 4.9| 3.4| 1.8| 0.2| 0.8| 1.4| 2.2| 2.0| 3.7| 4.7| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 3.23% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.2| 21.4| 20.3| 17.7| 15.8| 13.8| 12.8| 13.6| 15.7| 18.7| 20.4| 20.1| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.5| 20.4| 19.2| 17.2| 15.5| 13.4| 12.3| 13.4| 15.3| 17.9| 19.5| 19.5| Design maximum WB | 17.1| 17.2| 16.1| 14.3| 13.1| 11.2| 9.9| 10.1| 11.3| 13.3| 15.0| 15.7| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 4.8| 5.6| 4.5| 3.0| 1.5| -0.1| 0.5| 1.1| 1.8| 1.6| 3.3| 4.3| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|