Test device for the investigation of the heat transfer, with forced convection

摘要

Test device for the investigation of the heat transfer, with forced convection, comprising:• a flow channel for air with an inlet opening to the environment for the entry of air and an outlet opening to the environment for the emergence of air,• a between the inlet opening and the outlet opening in the flow channel fans arranged,• a test pieces arranged in the flow duct with an electrical resistance heater,• a with the electrical resistance heating element is connected with an electric voltage supply from the electrical voltage supply to the electrical resistance heater delivered power be detected electrical power measurer,• the temperature of the air in the flow channel in the direction of flow of air in front of and behind the test pieces and the temperature on the surface of the test object temperature sensors which detect,• the test pieces a transversely to the direction of flow of the air which are arranged in the flow passage, on both sides of the air in the flow channel in the plate over which the plate with an integrated resistance heating is.