Abstract: A target meter comprises a plug 12 which is movable relatively to an orifice plate 8 against a spring 20. The spring transfers the force on the plug 12 to an abutment 26, 42. The force applied to the support 26, 42 is detected by strain gauges 30, 44 and the signals from the strain gauges are processed to provide a measure of the flow rate or of the pressure drop across the orifice plate 8.

Abstract: This invention relates to the measurement of the dryness of steam supplied to steam-powered processes, and in particular to a method of making such measurements, and to methods of using the measured dryness fraction to obtain further information about the process plant and the steam supply.In particular, the invention is applicable when fluid is supplied via a steam separator to a process, and it relies upon storing values for the efficiency of the separator at a plurality of input steam and condensate mass flow rates and a plurality of input fluid temperatures or pressures. Methods disclosed herein use one of these values, together with measured output steam and condensate mass flow rates, to calculate the dryness of the steam.

Abstract: Refuse derived fuel is produced by taking raw refuse, pulverizing it and n screening it to remove fines and oversize material, the screened residue being passed to an air classifier where the light fraction, rich in paper and plastics, is separated. This light combustible refuse fraction is then passed to a densifying machine, either directly or via a secondary shredder, to produce partially compacted material which is then dried in a rotary dryer. The dried material can be passed to a second densifying machine which produces pellets in the form of small dense cylinders or blocks having a calorific value equal to about half that of coal. Coal dust or other combustible particulate material can be added to and mixed with the combustible fraction between the two densifying machines.