Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(57) station Manjimup 45 years (1967-2011)| | BoM 9573 (WMO 94617) -34.25° latitude 116.15° longitude 287.2 m alt| | | |It is now 04-Jul-2013 04:39:05 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/57/MJ_57_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/57/MJ_57_DB.txt (Dry Design Day)| | B: CZ0603_NatHERS_1967-2011_w.txt => NEW33/57/MJ_57_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/57/MJ_57_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 33.9 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.41) => this Design DB was exceeded 9.8 days/year (incl std dev 3.3 days/year). 34.2 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 8.8 days/year (incl std dev 2.9 days/year). Design drybulb changes 2.1 °C per century (linear regression R² 0.19) ~> 35.5 °C mid century. 19.5 ° Design WB = mean of 10th highest 3PM each year + (std dev * 2.01) => this Design WB was exceeded 9.8 days/year (incl std dev 5.9 days/year). 19.3 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 11.5 days/year (incl std dev 6.8 days/year). Design wetbulb changes 3.8 °C per century (linear regression R²=0.57) ~> 21.6 °C mid century. 4.5 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 0.91) => this Heating DB was insufficient 9.8 days/year (incl std dev 3.8 days/year). 2.6 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 8.9 days/year (incl std dev 3.5 days/year). Design heating changes 2.5 °C per century (linear regression R²=0.45) ~> 4.1 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 04:04 followed by maximum temperature at 14:59. Nighttime cooling rate 0.364 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 03:52 ~ Max at 15:42 Nighttime cooling rate 0.574 °/hr from 19:51 to 06:43 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 01:42 ~ Max at 15:48 Nighttime cooling rate 0.495 °/hr from 19:48 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 | | 33.9 DDB / 18.4 CWB | 30.2 CDB / 19.5 DWB | 4.5 DB |13.2 DB| 29.4 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.25 % | 0.61 % | 1.17 % | 0.17 % | 1.43 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 0.67 % | 1.26 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.38 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=159) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7239| 34.6| 18.0| 16.5| 15:42| 03:52| |+/- 1178|+/- 1.0|+/- 3.3|+/- 3.4|+/-00:48|+/-06:07| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=258) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 6879| 19.6| 14.3| 5.2| 15:48| 01:42| |+/- 1375|+/- 0.7|+/- 1.4|+/- 1.5|+/-01:30|+/-07:33| +/- 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 | | 34.0 / 19.2 | 35.6 / 19.8 || 2.2 | 5.4 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 33.0 DDB / 18.1 CWB | 29.6 CDB / 18.8 DWB | 2.8 DB | 0.4 % | 30.7 DDB / 17.4 CWB | 28.4 CDB / 18.0 DWB | 4.0 DB | 1.0 % | 28.6 DDB / 16.8 CWB | 26.9 CDB / 17.2 DWB | 4.9 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 926 | 1641 | 86 | 34 | mean annual degrees days |+/- 101 |+/- 129 |+/- 22 |+/- 11 | +/- 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| | 2071 | 821 | 3 | 0 | mean annual degrees hours |+/- 534 |+/- 256 |+/- 9 |+/- 0 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 18.7| 19.2| 18.0| 15.2| 13.1| 10.8| 10.0| 10.3| 11.3| 12.9| 15.4| 17.4| Average Temperature (DB) | 1.0| 1.4| 1.4| 1.3| 0.8| 0.8| 0.6| 0.8| 0.8| 1.1| 1.3| 1.5| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 683| 520| 725| 1215| 1835| 2975| 3591| 3402| 2789| 2205| 1354| 936| HD-Hr base 15 °C | 260| 247| 311| 424| 379| 497| 420| 533| 460| 534| 424| 349| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1480| 1179| 1596| 2476| 3569| 4947| 5684| 5460| 4656| 3860| 2559| 1909| HD-Hr base 18 °C | 347| 374| 488| 612| 512| 544| 448| 580| 538| 684| 561| 521| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 562| 554| 373| 59| 3| 0| 0| 0| 1| 22| 151| 347| CD-Hr base 24 °C | 211| 238| 201| 67| 7| 0| 0| 0| 3| 23| 124| 200| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 242| 239| 139| 11| 0| 0| 0| 0| 0| 3| 53| 134| CD-Hr base 27 °C | 122| 126| 100| 21| 1| 0| 0| 0| 0| 5| 62| 96| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 1| 2| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| NECD-Hr base 21 °C | 3| 8| 1| 0| 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| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 13.7| 14.2| 13.4| 12.2| 10.9| 9.1| 8.5| 8.7| 9.1| 10.0| 11.6| 12.7| Average Wet Bulb Temp (WB) | 0.5| 0.7| 0.7| 0.6| 0.5| 0.5| 0.4| 0.6| 0.5| 0.7| 0.7| 0.7| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 6.45% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 36.4| 35.7| 33.8| 28.0| 23.5| 19.0| 18.2| 19.4| 22.5| 26.9| 31.3| 34.1| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 34.0| 34.0| 31.9| 26.9| 21.6| 18.0| 16.9| 17.9| 20.9| 24.4| 29.1| 31.8| Design maximum DB | 20.8| 21.1| 20.5| 17.7| 14.6| 12.0| 11.1| 11.6| 13.0| 15.1| 18.3| 19.9| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 5.6| 6.2| 5.4| 4.6| 4.4| 3.2| 2.2| 2.5| 2.5| 2.5| 3.4| 4.9| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 2.72% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.8| 19.7| 18.6| 16.9| 15.1| 13.2| 12.7| 12.9| 13.6| 15.7| 17.4| 18.6| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.6| 19.5| 18.8| 17.1| 15.1| 13.4| 12.5| 12.8| 13.6| 15.7| 17.4| 18.7| Design maximum WB | 15.8| 16.4| 15.8| 14.3| 13.2| 10.9| 10.1| 10.4| 10.8| 12.3| 14.1| 14.8| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 5.0| 5.6| 5.0| 4.3| 4.1| 3.0| 1.9| 2.3| 2.3| 2.2| 2.9| 4.5| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|