This bench top unit consists of a centrifugal fan with vertical discharge duct in which three different types of heating surfaces can be inserted: flat surface, cylindrical pins surface and a finned surface. The air temperature is measured before and after the heating surface and in 5 different points of the heating surface itself. An anemometer allows to measure the air speed in the duct.
TRAINING PROGRAM
This unit enables to develop and analyze the following issues:
• Correlation between surface temperature and heating power in free convection
• Correlation between surface temperature and heating power in forced convection
• Demonstration of the efficiency of heat exchange with extended surfaces
• Temperature distribution on extended surfaces
• Comparison between surfaces of different geometry
TECHNICAL CHARACTERISTICS:
• Centrifugal fan with vertical outlet duct with transparent window
• Flat heating surface, 0.01 m2 with 200 W @ 24 Vdc heater
• Cylindrical pins heating surface, 0.05 m2 with 200 W @ 24 Vdc heater
• Finned heating surface, 0.1 m2 with 200 W @ 24 Vdc heater
• 2 housings for measuring inlet and outlet air temperature
• 5 housings for measuring surface temperature
• Shutter for varying the air speed
• Anemometer
