Table 4 Experimental measurement uncertainty and overall prediction value uncertainty.
From: Performance enhancement of solar air heater using V baffles
Parameter | Unit | Values |
|---|---|---|
Measurements during study | ||
Velocity uncertainty | m/s | ± 0.20 |
Temperature uncertainty | ˚C | ± 2.86 |
Irradiance uncertainty | W/m2 | ± 0.40 |
Values predicted for air heater | ||
Uncertainty in energy gain (useful power) | W | ± 1.086 a |
Thermal efficiency uncertainty | % | ± 0.003 b |