SolRad4 (Solar Radiation)

A program for the calculation of
Sun positions (sunpaths),
Irradiance (solar irradiance)
of arbitrarily oriented and inclined surfaces
and tanning times (tanning hours)
taking into account shadowing effects
(shading of the horizon incl. reflective radiation).

 

 

The original version of the SolRad program was developed by the Office of Applied Mathematics, Dr. Walter Heindl, in Vienna from the late 1970s to the early 1980s. Between 1990 and 2003, Tomasz Kornicki, in collaboration with Dr. Krec, created another version of the program.

Today the company Kornicki would like to provide you with the current version SolRad 4.

Saving energy is a topical issue. Sufficient thermal insulation can keep the amount of heating energy required as low as possible. Increasingly, attempts are also being made to view the incident solar radiation not only as an undesirable disturbance to the summer interior climate, but also as a source of energy in winter and especially in the transitional period, and to use it accordingly.

For thermal calculations in the building industry – a very important part of building physics – it is necessary to know the intensity of direct and diffuse solar radiation on any oriented surface elements. We use a system of formulas that allows the complete calculation of these solar radiation intensities only from the indication of date, time, geographical location, area orientation and few meteorological parameters.
It is specially designed for heating, air-conditioning specialists, building physicists and architects.
In extension of the formulas formerly used in the building physics literature, the elliptical Earth’s orbit, time difference and equation of time, the light beam curvature in the Earth’s atmosphere and any existing elevation of the horizon were taken into account.

Graphical Documentation for the chosen day or days:

  • Sun orbits in polar diagram (including horizon elevations)
  • Curves of hourly radiation values:
  • Flat Horizon:
    • Direct Radiation
    • Sky Radiation
    • Reflex Radiation
    • Diffuse Radiation (Sky + Reflex)
    • Global Radiation
  • Elevated Horizon:
    • Horizon Elevation (for Azimuth)
    • Direct Radiation
    • Sky Radiation
    • Reflex Radiation
    • Diffuse Radiation (Sky + Reflex)
    • Global Radiation
  • And for chosen orientations of the surface elements:
    • Incident angle of the direct radiation
    • Direct Radiation
    • Sky Radiation
    • Reflex Radiation
    • Diffuse Radiation (Sky + Reflex)
    • Global Radiation

Interested? Send a message for more information.

 

SolRad4

E-Mail: mkornicki@chello.at
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