Eric Laurentius Peterson, copyright 2013, by author- e.peterson@uq.edu.au) ___________________________________________________________________________ | Analysis of Australian Climate Data Bank (ACDB) version from NIWA 2013 | | ACDB(29) station Weipa 45 years (1967-2011)| | BoM 27045 (WMO 94170) -12.68° latitude 141.92° longitude 19.0 m alt| | | |It is now 04-Jul-2013 01:46:26 -> computational time was 7 minutes| | OUTPUTS | | INPUTS => NEW33/29/WP_29_Table.txt (this print out)| | A: ACDB_in/NatH_CZ.csv => NEW33/29/WP_29_DB.txt (Dry Design Day)| | B: CZ0102_NatHERS_1967-2011_w.txt => NEW33/29/WP_29_WB.txt (Wet Design Day)| | C: ACDB33.m => NEW33/29/WP_29_CR.txt (Critical D Day)| | => NEW33/ACDB_Table1.txt (compare others)| |_________________________________________________________________________| ANALYSIS SUMMARY ___________________________________________________________________________ 36.5 °C Design DB = mean of 10th highest 3PM each year + (std dev * 1.67) => this Design DB was exceeded 10.3 days/year (incl std dev 5.6 days/year). 36.5 ° alternative Design DB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design DB was exceeded 10.3 days/year (incl std dev 5.6 days/year). Design drybulb changes 3.5 °C per century (linear regression R² 0.61) ~> 38.6 °C mid century. 27.5 ° Design WB = mean of 10th highest 3PM each year + (std dev * 2.03) => this Design WB was exceeded 9.0 days/year (incl std dev 5.3 days/year). 27.4 ° alternative Design WB = mean of 10th highest daily maximum each year + (1 std dev) => alternative Design WB was exceeded 10.9 days/year (incl std dev 6.4 days/year). Design wetbulb changes -0.3 °C per century (linear regression R²=-0.09) ~> 27.2 °C mid century. 16.6 ° Heating DB = mean of 10th lowest 8AM each year - (std dev * 1.05) => this Heating DB was insufficient 9.9 days/year (incl std dev 5.7 days/year). 15.9 ° alternative Heating Design = mean of 10th lowest daily minimum each year - (1 std dev) => alternative Heating Design was insufficient 7.8 days/year (incl std dev 3.4 days/year). Design heating changes -2.1 °C per century (linear regression R²=-0.26) ~> 14.6 °C mid century. __________________________________________________________________________ Diurnal patterns generally and coincident with design temperatures General average diurnal minimum temperature at 05:47 followed by maximum temperature at 15:07. Nighttime cooling rate 0.425 °/hr (average of all data). Diurnal pattern of days with 3PM DB ~ Design DB ~ Min at 06:22 ~ Max at 15:30 Nighttime cooling rate 0.561 °/hr from 19:44 to 07:34 (evenings following 3PM design conditions). Diurnal pattern of days with 3PM WB ~ Design WB ~ Min at 01:52 ~ Max at 15:18 Nighttime cooling rate 0.252 °/hr from 19:53 to 07:18 (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 | | 36.5 DDB / 21.8 CWB | 30.4 CDB / 27.5 DWB | 16.6 DB |10.3 DB| 19.9 DB| |_____________________|______________________|___________|_______|________| |percentage of hourly data exceeding levels |hours below| |design DB | coinc WB | coinc DB | design WB | design DB | | 0.07 % | 57.30 % | 15.25 % | 0.15 % | 0.36 % | |__________|__________|__________|___________|___________| |design DB & coinc WB | coinc DB % design WB | | 57.34 % | 15.32 % | |_____________________|______________________| | design DB concurrent with design WB | | 0.22 % | |____________________________________________| Coincident from 3PM DB within degree of DDB (n=403) _______________________________________________________ | dGHI | DBmax | DBmin | DBrng | HmaxDB | HminDB | | 7267| 36.4| 23.4| 13.0| 15:30| 06:22| |+/- 503|+/- 0.5|+/- 2.0|+/- 2.0|+/-00:42|+/-01:11| +/- standard deviation |________|________|________|________|________|________| Coincident from 3PM WB within degree of DWB (n=528) _______________________________________________________ | dGHI | WBmax | WBmin | WBrng | HmaxWB | HminWB | | 5952| 27.3| 23.9| 3.4| 15:18| 01:52| |+/- 1367|+/- 0.5|+/- 1.6|+/- 1.7|+/-02:12|+/-06:44| +/- 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 | | 35.9 / 27.3 | 36.3 / 27.6 || 16.2 | 19.5 | |________________________________________________||_______________________| ASHRAE design temperatures exclude 0.4% 1% and 2% of hours. ___________________________________________________________ | design DB / coinc WB | coinc DB / design WB | heating | | 35.4 DDB / 22.1 CWB | 30.0 CDB / 27.1 DWB | 16.8 DB | 0.4 % | 34.6 DDB / 22.4 CWB | 29.7 CDB / 26.7 DWB | 17.8 DB | 1.0 % | 33.8 DDB / 22.9 CWB | 29.3 CDB / 26.4 DWB | 18.6 DB | 2.0 % |_________________________________________________________| Degree day base temps 15 °C, 18 °C, 24 °C, and 27 °C. ____________________________________________________ |Heating DD15|Heating DD18|Cooling DD24|Cooling DD27| | 0 | 5 | 1047 | 443 | mean annual degrees days |+/- 0 |+/- 3 |+/- 137 |+/- 86 | +/- 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| | 25135 | 10624 | 15415 | 2921 | mean annual degrees hours |+/- 3284 |+/- 2055 |+/- 2693 |+/- 939 | +/- 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 | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 27.1| 26.8| 26.7| 26.6| 25.9| 24.6| 24.0| 24.6| 25.9| 27.4| 28.2| 27.8| Average Temperature (DB) | 0.8| 0.8| 0.7| 0.7| 0.6| 0.8| 0.8| 0.8| 0.9| 0.8| 0.7| 0.8| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 0| 0| 0| 1| 3| 2| 0| 0| 0| 0| HD-Hr base 15 °C | 0| 0| 0| 0| 2| 4| 9| 5| 2| 2| 1| 0| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 0| 0| 0| 1| 3| 15| 44| 35| 13| 3| 3| 1| HD-Hr base 18 °C | 0| 0| 0| 3| 11| 26| 52| 37| 16| 7| 10| 2| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2341| 1911| 2146| 2093| 1822| 1289| 1231| 1520| 2075| 2791| 3052| 2865| CD-Hr base 24 °C | 481| 452| 441| 370| 305| 295| 270| 281| 361| 399| 416| 521| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 895| 643| 793| 839| 706| 437| 407| 609| 1010| 1443| 1551| 1292| CD-Hr base 27 °C | 302| 276| 244| 226| 188| 171| 153| 178| 243| 263| 286| 348| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 2625| 2437| 2356| 1537| 814| 260| 116| 136| 301| 829| 1571| 2432| NECD-Hr base 21 °C | 308| 277| 339| 527| 429| 196| 131| 137| 239| 413| 550| 411| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 671| 625| 496| 189| 37| 6| 1| 0| 7| 70| 251| 568| NECD-Hr base 24 °C | 219| 203| 214| 150| 56| 14| 4| 1| 12| 72| 200| 240| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 24.7| 24.7| 24.3| 23.1| 21.7| 20.2| 19.2| 19.3| 20.2| 21.6| 23.2| 24.4| Average Wet Bulb Temp (WB) | 0.5| 0.4| 0.5| 0.9| 0.9| 0.8| 0.9| 1.0| 0.9| 1.0| 0.9| 0.6| +/- standard deviation |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Dry Design Day => 4.74% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 34.0| 33.1| 33.4| 33.3| 32.7| 32.1| 32.0| 33.3| 35.4| 36.4| 36.4| 35.4| Maximum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 33.8| 33.0| 33.1| 33.3| 33.0| 32.3| 32.0| 33.1| 35.2| 36.3| 36.6| 35.3| Design maximum DB | 27.3| 27.1| 26.7| 25.5| 24.4| 23.3| 23.0| 22.8| 23.6| 25.0| 26.3| 27.3| Design minimum DB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 21.1| 21.5| 20.9| 19.7| 18.6| 16.6| 15.6| 15.7| 16.8| 18.5| 20.3| 20.9| Minimum Temperature (DB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| Wet Design Day => 1.94% from hour/month bins _________________________________________________________________________ | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 27.3| 27.2| 27.1| 26.3| 25.1| 24.1| 23.2| 23.3| 24.6| 26.1| 26.9| 27.4| Maximum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 27.4| 27.3| 27.6| 26.6| 25.6| 24.6| 23.6| 23.8| 24.7| 26.6| 27.2| 27.3| Design maximum WB | 25.9| 26.0| 25.6| 24.9| 23.6| 22.4| 21.7| 21.6| 22.5| 23.8| 25.1| 25.9| Design minimum WB |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____| | 19.7| 21.0| 20.3| 18.7| 17.2| 14.6| 13.6| 14.2| 15.4| 16.7| 18.2| 19.4| Minimum Temperature (WB) |_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|_____|