Introduction
Unit | Climate data location | ||||||||
---|---|---|---|---|---|---|---|---|---|
Latitude | °N | 51,42 | |||||||
Longitude | °E | –0,75 | |||||||
Elevation | m | 58,00 | |||||||
Heating design temperature | °C | –1,74 | |||||||
Cooling design temperature | °C | 22,96 | |||||||
Earth temperature amplitude | °C | 14,35 | |||||||
Frost days at site | day | 37,00 | |||||||
Month | Air temperature | Relative humidity | Daily solar radiation-horizontal | Atmospheric pressure | Wind speed | Earth temperature | Heating degree-days | Cooling degree-days | Average measured radiation |
°C | % | kWh/m2/day | kPa | m/s | °C | °C-d | °C-d | kWh/m2/day | |
January | 4,2 | 83,90 | 0,77 | 100,8 | 6,3 | 3,1 | 426 | 1 | 0,71 |
February | 4,3 | 80,20 | 1,39 | 101,0 | 5,8 | 3,6 | 380 | 1 | 1,28 |
March | 6,4 | 76,80 | 2,34 | 100,9 | 6,0 | 6,2 | 353 | 4 | 2,18 |
April | 8,6 | 69,80 | 3,59 | 100,7 | 5,1 | 9,1 | 279 | 21 | 3,55 |
May | 12,7 | 64,00 | 4,57 | 100,9 | 4,7 | 13,8 | 168 | 92 | 4,11 |
June | 16,1 | 60,80 | 4,84 | 100,9 | 4,4 | 17,7 | 75 | 177 | 4,86 |
July | 18,6 | 60,20 | 4,80 | 100,9 | 4,4 | 20,4 | 25 | 261 | 4,77 |
August | 18,6 | 61,20 | 4,23 | 100,9 | 4,3 | 20,3 | 26 | 264 | 4,23 |
September | 15,5 | 66,30 | 2,86 | 100,9 | 5,0 | 16,5 | 83 | 164 | 2,85 |
October | 11,7 | 74,10 | 1,73 | 100,7 | 5,5 | 11,5 | 191 | 73 | 1,57 |
November | 7,3 | 83,20 | 0,96 | 100,7 | 5,9 | 6,4 | 318 | 11 | 0,80 |
December | 4,9 | 85,00 | 0,60 | 100,8 | 6,1 | 3,8 | 404 | 3 | 0,60 |
Annual | |||||||||
10,7 | 72,10 | 2,72 | 100,8 | 5,3 | 11,0 | 2728 | 1072 | ||
Measured at (m) | 10,0 | 0,0 |
The unique nature of solar radiation regressions
Presently developed monthly-averaged hourly \( \overline{k}-{\overline{k}}_t \) regressions
Country | Location | Latitude | Longitude | Period of observation |
---|---|---|---|---|
India | Chennai | 13.08 | 80.18 | 1990–1994 |
Pune | 18.32 | 73.85 | 1990–1994 | |
Kingdom of Bahrain | Bahrain | 26.03 | 50.61 | 2000–2002 |
State of Kuwait | Kuwait | 29.22 | 47.98 | 1996–2000 |
Spain | Almeria | 36.83 | −2.38 | 1993–1998 |
Portugal | Faro | 37.02 | −7.96 | 1982–1986 |
Lisbon | 38.71 | −9.15 | 1982–1990 | |
Spain | Madrid | 40.40 | −3.55 | 1999–2001 |
Girona | 41.97 | 2.76 | 1995–2001 | |
United Kingdom | Camborne | 50.21 | 5.30 | 1981–1995 |
Bracknell | 51.42 | 0.75 | 1992–1994 | |
Aberporth | 52.13 | 4.55 | 1975–1995 | |
Finningley | 53.48 | 0.98 | 1982–1995 | |
Stornoway | 58.22 | 6.39 | 1982–1995 |
Country | Location | Regression equations | R2
|
---|---|---|---|
India | Chennai | y = 0.5124x2-0.9809x + 0.8733 | 0.83 |
Pune | y = 0.4083x2-0.873x + 0.853 | 0.92 | |
Kingdom of Bahrain | Bahrain | y = 1.4455x2-2.113x + 1.1262 | 0.98 |
State of Kuwait | Kuwait | y = 0.7088x2-1.3237x + 0.8299 | 0.96 |
Spain | Almeria | y = 1.9414x2-2.9329x + 1.3637 | 0.98 |
Portugal | Faro | y = 0.9184x2-2.2173x + 1.3654 | 0.99 |
Lisbon | y = 0.0721x2-1.3001x + 1.1246 | 0.99 | |
Spain | Madrid | y = 0.9087x2-2.0465x + 1.1808 | 0.99 |
Girona | y = 0.1781x2-1.0867x + 0.887 | 0.98 | |
United Kingdom | Camborne | y = 0.8188x2-1.1127x + 0.9365 | 0.96 |
Bracknell | y = 1.4394x2-1.5414x + 0.9878 | 0.97 | |
Aberporth | y = 0.9797x2-1.3032x + 0.9403 | 0.95 | |
Finningley | y = 0.451x2-0.876x + 0.9267 | 0.99 | |
Stornoway | y = 7441x2-1.1382x + 1.0147 | 0.98 |