Simultaneously via USB directly to a PC where they can be analysed using the software included. The thermal conductivity λ can be calculated from the measured data.

Heat conduction is the transport of heat between the individual molecules in solid, liquid and gaseous media under the influence of a temperature difference. Steady heat conduction is the term used when heat transport is maintained permanently and uniformly by adding heat. In transient heat conduction, the temperature distribution in the body is dependent on location and time.

Thermal conductivity λ is a temperature-dependent property of a material that indicates how well the heat propagates from a point in the material.

Tesca Steady & Unsteady State Heat Conduction Trainer can be used to study both steady and transient heat conduction. The trainer consists of a heat source and a heat sink, between which cylindrical samples made of different metals are inserted. Each sample is fitted with 12 temperature measurement points. The temperature measurement points are designed to has as little influence on the temperature as possible and the core temperature of the sample is measured.

The heat source consists of an electrically heated hot water circuit. An electronic controller ensures the heating water is kept at a constant temperature. The heat sink is realised by means of a water cooling system. An elevated tank ensures a constant cooling water flow rate.

A temperature jump can be generated by appropriate regulation of the cooling water flow. Optionally PC can be used to display the transient temperature distribution in the sample over time and place.

Specifications:
1. Investigation  of  steady  and  transient  heat conduction in metals
2. Determining the thermal conductivity λ
3. Heating    water    circuit    as    heat    source, electronically regulated
4. Electric heater with PID controller
5. Elevated  tank  with  overflow  for  generating  a constant cooling water flow rate
6. Samples made of 5 different metals
7. Cooling   water   temperature   and   flow   rate measurement
8. Digital   displays:   electric   heating   power, temperatures, cooling water flow rate
9. Optional software for data acquisition via USB under Windows 7, 8.1, 10

Technical Specifications:
Heater
Output: 800W
Oemperature: 20…85°C
Samples, Ø 40mm
3x 450mm (copper, aluminium, brass)
2x 300mm (steel, stainless steel)
Heating tank: ca. 2L
Cooling tank: ca. 0,5L Ÿ Elevated tank: ca. 6L Ÿ Temperature sensors
12x thermocouple type K, along the sample
2x Pt100, in the cooling water
1x Pt100, in the heating water

Experiments
Steady heat conduction
Transient heat conduction
Temperature/time profiles
Calculate  thermal  conductivity  λ  of  different metals

Required for Operation:
Water Supply
Drain

The temperatures of the sample, heating and cooling water, as well as the electrical heating power and the cooling water flow rate are displayed digitally on the switch   cabinet and can be transmitted