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TH322 · Heat Conduction & Convection

Experimental Apparatus for the study of heat conduction and convection

Laboratory experiments
  • Fourier's law - material dependence of heat conduction.
  • Effect of specimen length on heat dissipation.
  • Free convection - heat transfer in still air.
  • Forced convection - effect of airflow velocity on heat transfer.
  • Free vs. forced convection - comparative analysis.
  • Temperature distribution along the fin - visualising the thermal gradient.
  • Calculation of convective heat transfer coefficients.
TH322 - Heat conduction and convection bench
Overview

    A metal bar is heated at one end and cooled along its length as a fin, either by natural convection or by forced convection with the help of six computer controlled fans.

TH322 - heater, specimen bar and fan stack on the printed base plate
Heater Assembly
0-40W electric heater, computer controlled
Aluminum Base plate
Brass specimen bar
1 of the 8 test specimens provided
Fan grille
Six axial fans
able to generate wind speeds of up to 10 m/s, computer controlled
TH322 - heater, specimen bar and fan stack on the printed base plate
Heater Assembly
0-40W electric heater, computer controlled
Aluminum Base plate
Brass specimen bar
1 of the 8 test specimens provided
Fan grille
Six axial fans
able to generate wind speeds of up to 10 m/s, computer controlled
TH322 working principle
The specimen plate with the eight bars
The specimen plate with the eight bars
Specimens
    • 8 bars, Ø 10 mm: copper, aluminium, brass, stainless steel
    • a long (174 mm) and a short (124 mm) bar of each
    • kept on their own plate, each metal named beside its pair
Real Time Data Acquisition and Control Software
    TH322 software interface

    TH322 software interface

    TH322 software interface

    TH322 software interface
    TH322 data analysis

    TH322 data analysis

    TH322 data analysis

    TH322 data analysis
Connectivity
    Internet LAB TH322 Live Data On-site student Live Data Remote student WiFi

    The apparatus is equipped with Sangari Connect technology, which allows students to view live data and control the device both from computers in the lab and remotely.

General Features
  • Study of heat conduction along a fin, in free and forced convection
  • Adjustable heating level, with a temperature cut-off
  • Fan speed adjustable from the software
  • Temperatures, heating power and air velocity displayed in the software interface
  • Connection to a PC (not supplied with the apparatus) via USB or WiFi
Specimens
  • 8 bars, Ø 10 mm, 6 measuring points each
  • Copper, aluminium, brass, stainless steel
  • 4 long, one per metal: 174 mm, points 25 mm apart
  • 4 short, one per metal: 124 mm, points 16 mm apart
Heating Element
    Thermal power 40 W, 24 V DC
    Temperature cut-off 160 °C
    Heat block brass
Temperature Sensors
    Type Pt100
    Number 8: 6 along the bar, 1 in the heat block, 1 for the ambient air
Axial Fans
    Number 6
    Size 40 x 40 x 28 mm
    Supply 24 V DC, PWM speed control
    Speed 16 500 rpm max.
    Flow rate 36.6 m³/h per fan, 220 m³/h for all six
Power Supply
    Adapter external, 24 V DC, 90 W, supplied
230V

Part of package

Fundamentals of Heat Transfer

TH311 - heat conduction in metals apparatus TH321 - free and forced convection apparatus
TH322 - Heat conduction and convection bench TH541 - Steady-state and transient heat conduction bench

Aquire a solid understanding of thermodynamics with this complete set of experimental equipment covering the core topics in heat transfer - conduction and convection.

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