Abstract: A system to remove debris from a chamber includes a debris chamber, an exhaust pipe, a debris conduit, and a tab. The exhaust pipe may direct a flow of gas into an air outlet, and include an exhaust pipe interior. The debris conduit connects the chamber with at least one of the exhaust pipe interior and the air outlet, and includes a debris conduit end disposed in at least one of the exhaust pipe interior and the air outlet. The tab includes at least three outer edges forming at least two corners, and an adjacent edge. The adjacent edge is adjacent to the debris conduit end.

Abstract: A compartment cooling system includes a housing defining a substantially enclosed compartment, a flow of heated gas, a nozzle, and multiple tabs. The housing has an air inlet and an air outlet stack defining a flow path. The nozzle directs the flow of heated gas substantially in the flow path direction. The nozzle has an outlet end with a predefined shape. The multiple tabs are adjacent to and spaced about the outlet end. Each tab has a side adjacent the outlet end, and at least three sides in the flow of heated gas. The sides in the flow of heated gas form at least two corners.

Abstract: Inlet surfaces of a fluid-handling apparatus, such as a heat exchanger, are often prone to corrosion and erosion due to the high velocities of incoming fluid. The present disclosure includes a fluid-handling apparatus with a plurality of wetted surfaces of which a first portion is corrosion-erosion prone and a second portion is non-corrosion-erosion prone. The first portion is coated with a corrosion-erosion coating that is harder than the first portion. Less than all of the wetted surfaces are coated.