Quick Answer: The Unsteady State Heat Transfer apparatus is a water vessel with a controlled electric heater that keeps the bulk water temperature constant, plus test shapes of different dimensions and materials. Students immerse a shape suddenly and measure its transient temperature changes.
Last updated: October 2026
Key Features
Vessel of water with electric heater and temperature controller for a constant bulk temperature
Test shapes of different dimensions and materials, giving different heat transfer areas and thermal conductivities
Water volume large compared with the shapes, so immersion has a negligible effect on bulk temperature
Temperatures at key points shown on multi-line displays
Technical Specifications
Specification
Value
Heating
Electric heater with temperature controller
Test shapes
Different dimensions and materials
Display
Multi-line
About This Product
Transient conduction explains how quickly objects heat up or cool down when their surroundings change suddenly. Comparing the temperature-time curves of the different shapes shows how surface area, shape and thermal properties control the rate of heat transfer. Laboratories and colleges in Angola, Namibia, Sri Lanka, Kiribati, Turkey and Gabon can buy the Unsteady State Heat Transfer through an export order.
Frequently Asked Questions
Does immersing a test shape change the water temperature?
Only negligibly. The vessel holds a large volume of water compared with the test shapes, and a controller holds the bulk temperature constant.
