System and method for measuring cooling of a component

摘要

A system and method for measuring cooling effectiveness of a component is disclosed. The method includes providing a component with a coating applied on a surface of the component. Further, the method includes supplying a first gaseous medium over a surface of the component through a plurality of holes in the component and feeding a second gaseous medium along the surface of the component. Further, the method includes exposing the surface of the component to the first and second gaseous mediums for a predetermined period. The method further includes obtaining an image of the surface of the component exposed to the first and second gaseous mediums for the predetermined period. The method includes analyzing the obtained image to determine whether at least a portion of the coating is removed from the surface of the component upon exposure to the second gaseous medium.

主权项

1. A method for measuring cooling effectiveness of a component, the method comprising:
providing the component having a surface provided with a coating comprising an inorganic compound; supplying a first gaseous medium from a first source, through a plurality of holes in the component, for forming a cooling film of the first gaseous medium on the surface; feeding a second gaseous medium comprising a reactant, from a second source, along the surface of the component; exposing the component to a flow of the first and second gaseous mediums for a predetermined period, wherein the reactant chemically reacts with at least a portion of the coating to form a gaseous reaction product resulting in removal of the portion of the coating; obtaining at least one image via an imaging device of the surface of the component exposed to the flow of the first and second gaseous mediums; and analyzing the obtained image to determine whether at least the portion of the coating is removed from the surface of the component upon exposure to the first and second gaseous mediums for the predetermined period, wherein the removed portion of the coating is indicative of an ineffectively film cooled region on the surface of the component and a retained portion of the coating is indicative of an effectively film cooled region on the surface of the component.