Measurement equipment on a standards test-rig for radial fans

The article describes a pipe-type test facility for standards testing incorporating an on-line measurement system on the downstream side based on the MGC Digital Measuring Amplifier System.

To assess radial fans and to compare their performance, measurements are taken on standards test-rigs and from these the fan characteristics can be calculated. The article describes a pipe-type test facility for standards testing incorporating an on-line measurement system on the downstream side based on the MGC Digital Measuring Amplifier System.

The driving torque, speed and power are measured and differential pressure transducers monitor the static pressure. An orifice meter is used to obtain the volume flow, an inductive displacement transducer measures the position of the conical throttle and thermocouples monitor the temperature. The fan performance characteristics derived from a number of test series are produced as an example of the results.