| Month
|
Used to select the design day month for which to
display weather numerical data for.
|
| Day
|
Used to select the design day in the selected month
for which to display weather numerical data for.
|
| Include 29th February
|
When on, an extra day is added to the Day drop-down
list to account for leap years.
|
| Data table
|
For each hour of the selected design day in the
weather profile, the following data is held:
- Hours (column not
labeled) — Displays the design day hours as integers starting with hour number
one at 12:00 am local time and ending at hour 24.
- Dry bulb
temperature — Displays the temperature of air measured by a
thermometer freely exposed to the air but shielded from radiation and moisture
for each of the selected weather profile’s design day hours.
- Dewpoint
temperature — Displays the saturation temperature for each hour of
the selected weather profile design day.
- Solar
radiation direct — Displays the amount of direct solar irradiances
for each hour of the selected weather profile design day. Surrounding buildings
and terrain affect this quantity.
- Solar
radiation diffuse — Displays the amount of diffused solar
irradiances for each hour of the selected weather profile design day.
Fluctuations in the weather profile location’s atmospheric clarity affect this
quantity.
- Solar
radiation global — Displays the amount of global solar irradiances
for each hour of the selected weather profile design day. Global solar
radiation is derived from diffuse and direct solar radiation quantities using
the relationship: global = diffuse + direct x cosine (zenith)
- Wind
speed — Displays the meteorological wind speed for each hour of the
selected weather profile design day. Meteorological wind speed is used to
predict sol-air temperatures and wind pressure coefficients.
-
Wind direction — Displays the wind
direction for each hour of the selected weather profile design day. Wind
direction is measured clockwise from North.
-
Pressure — Displays the atmospheric
pressure for each hour of the selected weather profile design day.
- Cloud
cover — Displays a cloud cover factor for each hour of the selected
weather profile design day. Cloud cover is one of the parameters required for
load calculations.
|
