Table 5 Sensors information.
From: Evaluation of ventilation systems as a cooling strategy in dwellings using a validated TRNSYS model
Testo 440 | Type | Range | Accuracy | Measurement description |
|---|---|---|---|---|
Dry-bulb temperature | NTC | −20–70ºC | ± 0.5ºC | To measure the air entering the chimneys, the sensor was installed directly on the vents, at a height of 2.5 m above the floor. For the measurements on the mechanical ventilation system, the sensors were fitted to the inside of the pipes. |
Air velocity | Hot wire | 0–30 m/s | ± (0.03 m/s + 4% of m.v.) | |
Testo 480 | Type | Range | Accuracy | Measurement description |
Indoor dry-bulb temperature | NTC | 0–50ºC | ± 0.3ºC | Installed at a height of 1 m above the floor. |
CO2 | - | 0–10,000 ppm | ± (75 ppm + 3% of m.v.) | |
PCE-FWS 20 N | Type | Range | Accuracy | Measurement description |
Outdoor dry-bulb temperature | NTC | −40–60ºC | ± 1ºC | Installed on the roof of the dwelling, away from any surface. The point is marked outside the dwelling in Fig. 7 to avoid confusion. |
Wind speed | Anemometer | 0–50 m/s | v < 5 m/s → ± 1 m/s v > 5 m/s → ± 10% | |
Wind direction | Wind vane | - | - |
