Abstract: An accumulator heat exchanger comprising an accumulator vessel with an internal volume for accumulation of refrigerant fluid. The accumulator vessel has a first inlet conduit for gaseous refrigerant and a first outlet conduit for superheated gaseous refrigerant; a heat exchange coil disposed within the accumulator vessel. The heat exchange coil has a second inlet conduit for subcooled refrigerant fluid and a second outlet conduit for subcooled refrigerant fluid. The second inlet conduit and second outlet conduit provide an inlet and outlet flow path for the heat exchange coil. A separator plate covers a cross-section of the inner volume of the heat exchange coil.

Abstract: A EMAT inspection system is utiliized on sheet metal prior to it being formed or rolled to identify surface defects and sub-surface defects such as pencil pipe inclusions by using ultrasonic Lamb waves with the results being displayed on a remote screen of a display and control system which also records the inspection results and controls the EMAT system.