Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(36) station Gladstone 45 years (1967-2011)| | BoM 39123 (WMO 94380) -23.86° latitude 151.26° longitude 75.2 m alt| | | |It is now 04-Jul-2013 02:31:53 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/36/GL_36_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/36/GL_36_DB.txt (Dry Design Day)| | B: CZ0203_NatHERS_1967-2011_w.txt => NEW33/36/GL_36_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/36/GL_36_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 * 2.20) => this Design DB was exceeded 10.5 days/year (incl std dev 5.4 days/year). 33.9 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 10.5 days/year (incl std dev 5.4 days/year). Design drybulb changes 0.9 °C per century (linear regression R² 0.14) ~> 34.5 °C mid century. 26.9 ° Design WB = mean of 10th highest 3PM each year + (std dev * 1.82) => this Design WB was exceeded 10.1 days/year (incl std dev 6.0 days/year). 26.7 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 11.7 days/year (incl std dev 6.9 days/year). Design wetbulb changes 0.6 °C per century (linear regression R²=0.10) ~> 27.1 °C mid century. 10.8 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.85) => this Heating DB was insufficient 10.5 days/year (incl std dev 4.2 days/year). 10.2 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 9.8 days/year (incl std dev 4.2 days/year). Design heating changes 0.4 °C per century (linear regression R²=0.06) ~> 10.5 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:28 followed by maximum temperature at 14:08. Nighttime cooling rate 0.279 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 05:34 ~ Max at 14:00 Nighttime cooling rate 0.274 °/hr from 19:36 to 07:2 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 00:46 ~ Max at 14:12 Nighttime cooling rate 0.214 °/hr from 19:32 to 06:51 (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 / 24.3 CWB | 30.7 CDB / 26.9 DWB | 10.8 DB | 8.1 DB| 23.2 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.12 % | 3.76 % | 2.46 % | 0.14 % | 0.37 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 3.82 % | 2.49 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.24 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=212) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7524| 34.2| 24.3| 10.0| 14:00| 05:34| |+/- 921|+/- 0.7|+/- 1.5|+/- 1.5|+/-01:00|+/-01:21| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=296) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6883| 26.9| 23.0| 3.9| 14:12| 00:46| |+/- 1349|+/- 0.6|+/- 1.5|+/- 1.5|+/-01:30|+/-07:35| +/- 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 | | 33.4 / 26.6 | 34.2 / 27.0 || 10.4 | 11.7 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 32.9 DDB / 24.1 CWB | 30.0 CDB / 26.3 DWB | 10.9 DB | 0.4 % | 32.0 DDB / 23.8 CWB | 29.1 CDB / 25.6 DWB | 12.2 DB | 1.0 % | 31.1 DDB / 23.4 CWB | 28.4 CDB / 25.0 DWB | 13.4 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 29 | 138 | 371 | 112 | mean annual degrees days |+/- 13 |+/- 35 |+/- 55 |+/- 28 | +/- 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| | 8904 | 2695 | 4099 | 418 | mean annual degrees hours |+/- 1308 |+/- 678 |+/- 1426 |+/- 335 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 26.2| 25.9| 25.0| 23.1| 20.5| 18.0| 17.4| 18.3| 20.5| 22.6| 24.3| 25.7| Average Temperature (DB) | 0.7| 0.8| 0.6| 0.6| 0.7| 0.8| 0.7| 0.7| 0.6| 0.8| 0.8| 0.9| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 0| 1| 32| 204| 278| 153| 20| 2| 0| 0| HD-Hr base 15 °C | 0| 0| 0| 3| 49| 147| 147| 114| 22| 7| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 1| 12| 213| 842| 1143| 812| 239| 40| 3| 0| HD-Hr base 18 °C | 0| 0| 2| 23| 163| 331| 338| 268| 120| 41| 4| 2| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1862| 1524| 1248| 590| 150| 20| 12| 46| 220| 585| 1029| 1619| CD-Hr base 24 °C | 443| 446| 311| 159| 87| 23| 15| 49| 99| 202| 330| 462| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 663| 510| 368| 110| 8| 0| 0| 2| 23| 123| 316| 572| CD-Hr base 27 °C | 255| 245| 160| 62| 12| 1| 1| 7| 22| 84| 172| 262| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1081| 934| 581| 143| 26| 2| 0| 1| 14| 123| 360| 834| NECD-Hr base 21 °C | 436| 457| 347| 153| 47| 6| 1| 2| 26| 104| 281| 423| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 135| 126| 44| 5| 0| 0| 0| 0| 0| 2| 19| 87| NECD-Hr base 24 °C | 117| 148| 58| 16| 0| 0| 0| 0| 1| 4| 35| 84| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 22.1| 22.0| 20.9| 18.9| 16.3| 13.7| 13.0| 14.0| 16.1| 18.4| 19.9| 21.5| Average Wet Bulb Temp (WB) | 0.9| 0.9| 0.9| 1.0| 1.2| 1.1| 1.2| 1.1| 1.1| 1.0| 1.0| 1.0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 3.66% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 34.3| 33.6| 32.7| 30.9| 28.0| 25.9| 25.9| 27.1| 29.3| 31.7| 32.9| 34.2| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 34.1| 33.7| 32.5| 30.4| 28.0| 25.7| 25.2| 26.5| 28.9| 31.0| 32.5| 33.9| Design maximum DB | 26.0| 25.9| 24.6| 22.8| 20.8| 18.8| 18.0| 18.3| 20.3| 22.6| 24.1| 25.5| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 20.4| 20.4| 19.3| 16.9| 12.8| 9.7| 9.1| 10.2| 12.8| 15.6| 17.6| 19.2| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 2.91% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 26.8| 26.5| 25.6| 23.7| 22.1| 20.2| 19.5| 20.2| 21.9| 23.8| 25.0| 26.5| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 26.7| 27.0| 25.8| 23.9| 22.3| 20.2| 19.7| 20.3| 21.8| 23.9| 25.5| 26.5| Design maximum WB | 24.6| 24.7| 23.6| 21.8| 20.2| 17.8| 17.5| 17.9| 19.7| 21.5| 22.9| 24.2| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 16.6| 17.2| 15.0| 11.6| 7.6| 5.2| 4.6| 4.7| 6.6| 10.2| 12.5| 15.2| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|