climatic chamber
The Modine climate chamber is suitable for passenger cars and light vans. It is equipped with a roller dynamometer. The main dimensions and performance data are shown in the Table.
| chamber size | 12 x 5 x 5 m | ![]() |
| temperature range | from -33 to +55 °C | |
| cooling power | 110 kW @ -5 °C 30 kW @ -30 °C |
|
| heating power | 50 kW | |
| rel. humidity (controlled between +10 and +55°C) |
from 10 to 90% | |
| max. dew point | +43 °C | |
| sun simulation area | 6 x 2,5 m | hot- and deep temperature tests |
| light intensity | from 500 to 1100 W/m2 | ![]() |
| fan blower | max. 120 km/h | |
| jet crosssection | 0,48m2 | |
| dyno braking power | 260 kW | |
| max. dyno speed | 200 km/h | |
| max. force | 6 kN | |
| limited axle load on dyno | 2,5 t |
The wind jet fan sucks air from the upper part of the chamber and blows it towards the vehicle via a nozzle with a cross section of 0.8 x 0.6 m at speeds of up to 120 km/h.
The temperature and humidity is controlled by sensors on the nozzle outlet.
The maximum allowed temporal temperature diviation is specified with 1 K.
Above 10°C the humidity can be controlled. It can be set at between 10 and 90%, with a maximum dew point of 43°C. The quality of the humidity control is specified to ±5% r.H. Humidity is particularly important during air conditioning tests. When testing, it is important how quickly a desired climate can be reached. The chamber itself can be cooled down from 55°C to - 30°C within 160 min. However, for a vehicle, the specified pre-conditioning time is usually substantially longer, especially with low temperatures. The position of the solar lamp array is adjustable both longitudinally and vertically. Moreover, the lamps are arranged in two panels, of which the forward can be swung down to simulate solar radiation from ahead. The radiation intensity can be dimmed between 1100 and 500 W/m2.







