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Conductivity Of Liquid And Gases
Conductivity Of Liquid And Gases (Product Code: SLE/EA/23) is a thermal conductivity apparatus used to measure how well a liquid or gas conducts heat across a thin layer between a heater and a water-cooled heat sink in engineering laboratories. Three concentric cylinders hold the electric heater, the test fluid and the cooling water, with thermocouples on both edges of the fluid layer. It is made by Jain Scientific Equipments Pvt Ltd (ScienceLab), an OEM and scientific instruments manufacturer in India, at its own factory in Ambala.
Key Details
| Parameter | Detail |
|---|---|
| Arrangement | Three concentric cylinders |
| Heat source | Inner cylinder containing an electric heater |
| Test layer | Test liquid or gas forming a second, thin cylinder around the heat source |
| Heat sink | Third, water-cooled cylinder surrounding the other two |
| Heat path | Conduction from the heat source, through the test liquid or gas, to the heat sink |
| Temperature measurement | Thermocouples on the inside and outside edges of the test fluid cylinder |
| Mounting | Base plate with a clear schematic of the experiment layout |
| Product code | SLE/EA/23 |
| Manufacturer | Jain Scientific Equipments Pvt Ltd (ScienceLab) — OEM |
| Country of origin | India (made in Ambala, Haryana) |
What Is the Liquid and Gas Thermal Conductivity Apparatus Used For?
Students fill the thin annular gap with the chosen fluid, start the cooling water and heater, and wait for the thermocouple readings to settle. From the heat input and the temperature difference across the layer, they calculate the fluid's thermal conductivity using the equation for radial conduction through a cylindrical shell. The printed schematic on the base plate helps them identify each measuring point quickly.
Keeping the fluid layer thin limits convection, so heat crosses it mainly by conduction. Repeating the test with different fluids shows clearly why gases are far poorer conductors than liquids, a useful result for heat transfer and fluid-property courses using engineering lab equipment in India.
OEM Manufacturer
Jain Scientific Equipments Private Limited, trading as ScienceLab, is the OEM (original equipment manufacturer) of this conductivity apparatus and manufactures it at its own licensed factory in Saha, Ambala, Haryana, India. Buying from the maker means one contact for set-up questions, replacement thermocouples or additional units for new benches — ask us for any of these. The company supplies engineering colleges, dealers and importers directly; its background is on the ScienceLab profile.
Related Thermodynamics & Heat Transfer Lab Equipment
Conduction experiments and support units from the same field:
- Heat Transfer — the range's base unit that supplies heater power and cooling water to bench experiments on base plates.
- Radial Heat Conduction Experiment — radial conduction through a solid disc for comparison with a fluid layer.
- Computerized Thermal Conductivity of Powder — conductivity measurement for powders.
- Extended Surface Heat Transfer — conduction along a heated bar.
Explore more in Thermodynamics & Heat Transfer Lab Equipment.
Frequently Asked Questions
How does the Conductivity Of Liquid And Gases apparatus work?
The Conductivity Of Liquid And Gases apparatus uses three concentric cylinders: an inner electric heater, a thin layer of test liquid or gas, and an outer water-cooled heat sink. Heat conducts from the heater through the fluid layer to the sink.
Can it test both liquids and gases?
Yes. In the Conductivity Of Liquid And Gases apparatus, either a test liquid or a test gas forms the thin second cylinder around the heat source, so students can compare the conductivity of different fluids on the same apparatus.
Where are temperatures measured?
Thermocouples on the Conductivity Of Liquid And Gases apparatus measure the temperature at the inside and outside edges of the cylinder of test liquid or gas, giving the temperature difference needed to calculate its thermal conductivity.
Why is the test fluid layer thin?
The test fluid in the Conductivity Of Liquid And Gases apparatus forms a thin cylinder so that convection currents have little room to develop, which means the heat crossing the layer travels mainly by conduction, as the calculation assumes.
What else is needed to run the apparatus?
The Conductivity Of Liquid And Gases apparatus uses cooling water for its outer cylinder, plus a supply for the heater and a readout for the thermocouples. Ask us via the contact page which unit is quoted to provide these.
Who manufactures the Conductivity Of Liquid And Gases apparatus?
The Conductivity Of Liquid And Gases apparatus is manufactured by Jain Scientific Equipments Pvt Ltd (ScienceLab), the OEM, at its own licensed factory in Saha, Ambala, India, and is supplied directly to institutions and trade buyers.
Request a Quote
Request a price for the Conductivity Of Liquid And Gases apparatus on our contact page or add it to the enquiry cart. Quotations come directly from the manufacturer for buyers in India and international markets.
Last updated: 24 September 2026
