The active element consists of a non-metallic circular cylinder coated with an electrically conductive surface and circumferential contacts at each end. Under the conducting surface is a thermocouple designed to measure the local temperature. The Local Heat Transfer Element includes a black plastic plate with circular access hole designed to fit the aperture in the Cross Flow Heat Exchanger duct. The active element has a circular graduated flange that fits in the access hole and allows the active element to be rotated about its central axis while in the airstream.
Experimental Capabilities:
Determination of the local heat transfer coefficient at the stagnation point on a cylinder in crossflow
Investigation of polar heat transfer coefficient for a single tube in a transversely flowing airstream at speeds of up to 30m/s.
