Convective Heat Transfer In Air Flow
Categories: Engineering Lab EquipmentConvective heat transfer refers to the transfer of heat between a surface and a fluid. Convective heat transfer processes are associated with fluid flow movements, i.e. convection. In the case of fo...
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Description
Convective heat transfer refers to the transfer of heat
between a surface and a fluid. Convective heat transfer processes are
associated with fluid flow movements, i.e. convection. In the case of forced
convection, a pump or fan directs the fluid to the transfer surfaces, while in
the case of free convection, a flow occurs only due to the difference in
density of the heated fluid.
it and its accessories are used to study convective heat
transfer at different geometries of the transfer surface. Typical models such
as tube bundles, externally heated tubes and internally heated cylinders are
considered. In addition, the chimney effect can be demonstrated under free
convection in an air duct.
Learning Objectives/Experiments
Interplay between Nusselt number, Reynolds number and heat
flow
Measurement of pressure distribution in the air duct and
development of the velocity profile
Measurement of convective heat transfer in the tube bundle
as a function of position
Pressure loss across the tube bundle
Measurement of convective heat transfer with free convection
in the air duct (chimney effect)
Specification
Convective heat transfer with forced convection
Air duct with streamlined inlet and windows for observation
of the experiments
Replaceable tube bundle with two different tube diameters
included
Heating element Ø 10mm or Ø 13mm can be used in the tube
bundle at any desired position
Air duct allows experiments on free convection and
demonstration of the chimney effect
Heating element Ø 10mm can be used in the air duct
Overheat protection for the heating elements
Adjustable air volumetric flow rate
Movable Pitot tube with pressure gauge for determining a
velocity profile under forced convection
Display of air temperature, heating temperature and heating
power
Other models available as accessories
Technical Data
Air duct
flow cross-section: 150x150mm
length: 1540mm
Fan
output: 1,5kW
max. volumetric flow rate: 2160m3/h
Tube bundle
23x tube (Ø 10mm)
23x tube (Ø 13mm)
2 heating elements
length: 130mm
output: 220W (Ø 10mm)
output: 250W (Ø 13mm)
overheat protection at 80°C
Measuring ranges
pressure: ±200mmbar
temperature: 2x max. 80°C
power: 0…400W
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 230V, 60Hz, 3 phases
UL/CSA optional
LxWxH: 1930x800x2000mm
Weight: approx. 205kg
quick overview :
Convective heat transfer refers to the transfer of heat
between a surface and a fluid. Convective heat transfer processes are
associated with fluid flow movements, i.e. convection. In the case of forced
convection, a pump or fan directs the fluid to the transfer surfaces, while in
the case of free convection, a flow occurs only due to the difference in
density of the heated fluid.
it and its accessories are used to study convective heat
transfer at different geometries of the transfer surface. Typical models such
as tube bundles, externally heated tubes and internally heated cylinders are
considered. In addition, the chimney effect can be demonstrated under free
convection in an air duct.
Learning Objectives/Experiments
Interplay between Nusselt number, Reynolds number and heat
flow
Measurement of pressure distribution in the air duct and
development of the velocity profile
Measurement of convective heat transfer in the tube bundle
as a function of position
Pressure loss across the tube bundle
Measurement of convective heat transfer with free convection
in the air duct (chimney effect)
Specification
Convective heat transfer with forced convection
Air duct with streamlined inlet and windows for observation
of the experiments
Replaceable tube bundle with two different tube diameters
included
Heating element Ø 10mm or Ø 13mm can be used in the tube
bundle at any desired position
Air duct allows experiments on free convection and
demonstration of the chimney effect
Heating element Ø 10mm can be used in the air duct
Overheat protection for the heating elements
Adjustable air volumetric flow rate
Movable Pitot tube with pressure gauge for determining a
velocity profile under forced convection
Display of air temperature, heating temperature and heating
power
Other models available as accessories
Technical Data
Air duct
flow cross-section: 150x150mm
length: 1540mm
Fan
output: 1,5kW
max. volumetric flow rate: 2160m3/h
Tube bundle
23x tube (Ø 10mm)
23x tube (Ø 13mm)
2 heating elements
length: 130mm
output: 220W (Ø 10mm)
output: 250W (Ø 13mm)
overheat protection at 80°C
Measuring ranges
pressure: ±200mmbar
temperature: 2x max. 80°C
power: 0…400W
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 230V, 60Hz, 3 phases
UL/CSA optional
LxWxH: 1930x800x2000mm
Weight: approx. 205kg
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