A complete reporting of the radiation energy balance is also provided in the Summary file when running Solar Heating. Below is a sample of such a report. Comments about the meaning of certain items are written below the line and are preceded by a “>>>>” symbol.
Simulation Time 1.728000e+003 seconds, year = 2006, month = 2, day = 1 hour = 12 minute = 25 second = 5
L2 Norm of residual before solve = 1.06209e-003
Radiosity Solution has converged
Iter=10 ResNorm = 6.36236E-014
CPU time to solve radiosity matrix = 4
Radiation heat balance = 4.1933e-010/ 86.259 = 4.8613e-010%
Radiation Heat Loads by Part ID:
| ID |
Radiation Heat Load (Watts) |
Area (mm^2) |
Surface Temperature (K) |
Emissivity | Transmissivity |
| 1 | 0.1875/ 0 solar | 5959.3 | 298.43 | 0.7 | 0 |
| 2 | 0.19787/ 0 solar | 5959.3 | 298.83 | 0.7 | 0 |
| 3 | 12.858/ 14.379 solar | 1.56e+005 | 303.46 | 0.2 | 0.6 |
| 4 | 0.57946/ 0.51806 solar | 5959.3 | 300.24 | 0.7 | 0 |
| 5 | 0.78074/ 0.69285 solar | 5959.3 | 301.29 | 0.7 | 0 |
| 6 | 71.656/ 70.67 solar | 1.21e+005 | 303.73 | 0.94 | 0 |
| Total | 86.259/ 86.259 | 3.01e+005 | 303.27 |
>>>> Part 3 is picking up 14.379 Watts through incoming solar flux, but its net increase is only 12.858. This means that this part lost about 1.5 Watts to its surroundings. Part 6, conversely, has a slightly higher net influx than it received from solar. This means that it picked up additional radiant energy from its surroundings. Note that the total solar heat load = total radiation heat load, indicating a good radiation energy balance.