Superb Technologies

Free Forced Convection Apparatus

The bench-mounting equipment includes a vertical duct that holds the chosen heat transfer surface and all instruments needed. It include three different common heat transfer surfaces with the equipment: A Flat Plate. A Pinned Surface – similar to a tubular heat exchanger. A Finned Surface – similar to the fins on air-cooled engines or electrical heat sinks Each surface has its own built-in variable-power electric heater. Students choose which surface they need to test and fit it to the duct using simple fixings. For free convection tests, the heated air rises from the surface and up the duct. For forced convection tests, a variable-speed fan draws air up through the duct and across the surface. Thermocouples measure the air temperature upstream and downstream of the surface and the temperature at the heat transfer surface. The downstream probe moves in a traverse mechanism to measure the temperature distribution across the duct, allowing calculation of the bulk outlet temperature. An additional probe allows students to measure the temperature distribution along the extended surfaces of the pinned and finned heater transfer surfaces. A digital display shows the heater power and the temperatures measured by the thermocouples. Experiments: Comparing free and forced convection for different surfaces Comparison of free convection from vertical and horizontal (finned) surfaces Comparison of heat transfer surface efficiency Comparing the coefficient of heat transfer Temperature distribution along finned and pinned surfaces Technical Specifications: Control Panel consist of Wattmeter Digital temperature Indicator Air flow Meter Rheostat for controlling Heater Input Fan Speed Controller Test Plates Flat Plate Finned Plate Pinned Plate Fan Variable speed Fan Air Duct 120x120 Length 1 Meter Material Mild Steel 16 gauge Sheet Whole Structure is well Painted and Structured

₹ 1,06,000Piece