WIND TUNNEL TURNING VANE HEAT EXCHANGER

A method for use with a plurality of hollow turning vanes in a wind tunnel, the method comprising the steps of: - flowing a working fluid at a first temperature through a pipe system to a first heat exchange unit; - the heat exchange unit formed of at least one turning vane having single unit connections pieces at each end of the hollow turning vane, the connection pieces being removably attached fluid tight to the turning vane; - the connection pieces having been removably connected to the hollow turning vanes with mechanical connectors; - the heat exchange unit connected to the pipe system such that fluid can flow from the pipe system into the heat exchange unit; - passing the working fluid from the first heat exchange unit into a second heat exchange unit; and the method further comprising the steps, performed contemporaneously with the passing steps, of turning air as the air passes past the hollow turning vanes, and cooling the air as the air passes past the hollow turning vanes by transferring heat to the working fluid and thereby raising the temperature of the working fluid from the first temperature to a second temperature.