Loading of tubular filters in AGR

This paper presents the results of experimental work concerned with the collection of dust particulate by tubular metallic filters and the effect of loading on pressure drop and flow distributions. Two different filter materials, one particular the other fibrous, and three types of filter geometries were tested. Air of atmospheric pressure and temperature was used as carrier gas for Test Dust No. 2. From the experimental results empirical equations were derived which describe the change of pressure drop across the filter wall and the variations of flow non-uniformity along the filter as a function of loading and other parameters, and also effects of suction and injection on the friction factor for the three tested candle geometries. These correlations have been incorporated in a computer code which predicts the pressure distributions, cross flow velocities and masses deposited along the filter in the loading process. ((orig.))