Table 2 The range, accuracy and uncertainties of measuring devices. .
Instruments | Range | Accuracy (%) | Uncertainty (%) |
|---|---|---|---|
Rotameter, kg.s−1 | 0.016–0.3 | ± 0.5 | ± 0.17 |
Thermocouple K-type, °C | −200–1200 | ± 0.1 | ± 0.16 |
Digital differential pressure transmitter, kPa | 0.5–500 | ± 0.5 | ± 01.16 |
Reynolds number | 5000–50,000 | - | ± 2.8 |
Friction factor | - | - | ± 4.6 |
Nusselt number | - | - | ± 4.6 |
Effectiveness | - | - | ± 5.4 |
Heat transfer per pumping power | - | - | ± 5.8 |
