Thermodynamics > Heat transfer

TH 330 THERMAL RADIATION

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The apparatus is a bench top unit is used for studying the laws of heat transfer by radiation using two alternative energy sources namely a radiant heat source and a light source.

The radiation sources as well as accessories are mounted on a horizontal aluminum profile base frame with track scale.

The radiant heat source employs a heater in a housing. Temperature of the heat source can be controlled. Heat radiation is measured by a radiometer. Metal plates with different surface finishes are fitted with thermocouples to demonstrate effect of emissivity on radiation emitted and received. An adjustable vertical slot aperture plates are also provided to study area factor.

The light source is provided by a lamp in a housing with a glass diffuser. Measurement of light is by a light meter. Filters of varying opacity are supplied.

A service module provides power supply, heater control unit and measuring instruments.

Instruction manual is also included.

  • Inverse square law for light.

     

  • Inverse square law for thermal radiation

     

  • Lambert’s cosine law for light.

     

  • Lamberts law of absorption

     

  • Stefan-Boltzmann’s law of thermal radiation

     

  • Emissivity different surfaces

     

  • Emissivity two close radiating surfaces

     

  • Kirchoff’s law using heat source

     

  • Area  factor using heat source

  • Base frame:
  
- Material: Twin aluminium profile  
- Scale: 0-100 cm x 1 mm graduation 
  • Heat source
: 400 W heater with housing and a base clamp 
  • Measuring instruments
  
- Radiometer: Thermopile type with a base clamp 
- Light meter : 200,000 lux on a rotating base with angular scale 
- Sensors with digital display: Temperature for radiation plates 
  • Radiation plates

: Two black, one gray and one polished surface, each with a base clamp

 
  • Insulated adjustable aperture plates

: 2 with base clamp

 
  • Light source
: 100 W light bulb or equal with housing and base clamp 
  • Filters
: 3 different opacity and base clamp 
  • Temperature controller
  
  • Power supply
: 220 V, 1 Ph, 50 Hz. Other power supply is available on request. 
   
   

Net (unpacked) shipping dimensions WxLxH  : 45 x 155 x 40 cm

Net weight  : Approx. 35 kg

  • TH330S
Learning Software
 to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.
  • TH330-001
Additional filter
  • TH330-050
Computer Interface (computer not included)
 This includes TH330S and significant sensor(s) instead of analog measuring instrument(s), data acquisition (capture, display, graph and/or data export),
 additional software function for real-time data logging with computer interface unit and WiFi feature for data logging and real-time display remotely on smartphone (iOS and Android)
  • TH320S
Learning Software
 to support both online/offline training with data calculation and analysis by manual data entry from analog measuring instruments.
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