The proceedings of the first AIVC Conference are divided into five sessions: Alternative measurement procedures; Automatic monitoring using tracer gas techniques; Pressurization test methods; Correlation of tracer gas and pressurization measurements; Other measurements.
A new simple method is proposed here for the experimental singling out of the air flow patterns in a room. It is based on the use of a series of thermofoil probes, arranged in a lattice, that can be suspended at the ceiling of the room under test.
Conventionally used thermal anemometers are able to measure velocity, but cannot determine direction. In the present study, a new kind of thermal anemometer is presented which consists of a 38mm-diameter sphere with 12 NTC resistances on its surface. Each of them is a single Constant Temperature Anemometer which takes measurements of the local heat transfer on the surface depending on the position on the ball.
This paper reports the design, development, calibration and testing of a fast-response, multi-channel tracer gas concentration measuring instrument. The instrument uses aninnovative application of Infrared Absorption techniques to measure Sulphur Hexafluoride (SF6) concentrations. This approach allows the overall cost of a multi-channel continuous-recording unit to be reduced without sacrificing overall performance. A calibration over the range of 5.0 to 50.0 ppm V SF6 is shown. The current measurement resolution is 0.06 ppm V, and the accuracy is + or - 5.0%.
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