The Linear and Radial Heat Transfer Unit ThermoFlux - 7043 is a tabletop experimental apparatus for the study of steady-state and unsteady-state heat transfer by conduction in both linear and radial geometries. The linear module features a multi-section brass cylindrical bar with 9 temperature sensors at 10 mm intervals, a 150 W electrical heater, and three interchangeable test sections in brass (25 mm and 16 mm diameter) and stainless steel (25 mm diameter), each 30 mm in length. The radial module comprises a 110 mm diameter, 6 mm thick brass disc fitted with 6 temperature sensors at 10 mm intervals and water-cooled at its outer boundary. Fast-response probes with 0.1°C resolution cover a temperature range of −100°C to 400°C, with power control continuously variable from 0–150 W. Optional ThermoFlux - 7043 DAQ software, developed in National Instruments™ LabVIEW™, is available for au…

Linear and Radial Heat Transfer Unit ThermoFlux - 7043, Technical Specifications
| Parameter | Details |
|---|---|
| Model | ThermoFlux - 7043 |
| Configuration | Two modules: linear (cylindrical bar) and radial (brass disc) |
| Unit Type | Tabletop standalone unit |
| Heating | Electrical heating element, continuously variable 0–150 W output |
| Heater Power (Linear Module) | 150 W |
| Heater Power Measuring Range | 0–200 W |
| Cooling Method | Water cooling via standard laboratory tap supply |
| Temperature Measurement Range | −100°C to 400°C |
| Temperature Probe Resolution | 0.1°C |
| Linear Module, Temperature Sensors | 9 sensors at 10 mm intervals |
| Radial Module, Temperature Sensors | 6 sensors at 10 mm intervals |
| Display | Temperatures and heating power on control panel |
Technical Data
Linear Module
| Component | Parameter | Value |
|---|---|---|
| Heater Section | Material | Brass |
| Heater Section | Diameter | 25 mm |
| Heater Section | Heater Power | 150 W |
| Cooler Section | Material | Brass |
| Cooler Section | Diameter | 25 mm |
| Temperature Sensors | Quantity | 9 |
| Temperature Sensors | Spacing | 10 mm intervals |
Radial Module
| Parameter | Value |
|---|---|
| Material | Brass |
| Diameter | 110 mm |
| Thickness | 6 mm |
| Temperature Sensors | 6 sensors at 10 mm intervals |
Interchangeable Test Sections, Insulated Test Section with Temperature Sensor Array
| Material | Diameter | Length |
|---|---|---|
| Brass | 25 mm | 30 mm |
| Brass | 16 mm | 30 mm |
| Stainless Steel | 25 mm | 30 mm |
Measuring Ranges
| Parameter | Range |
|---|---|
| Temperature | −100°C to 400°C |
| Heater Power | 0–200 W |
Key Features
Experiments
Linear Heat Conduction (Plane Wall)
Radial Heat Conduction
Construction and Design
The Linear and Radial Heat Transfer Unit ThermoFlux - 7043 is constructed around two electrically heated test modules mounted on a common bench support frame. The linear module consists of a multi-section cylindrical bar in brass, with a 25 mm diameter heater section rated at 150 W and a 25 mm diameter brass cooler section fed by laboratory tap water. Nine fast-response temperature sensors are distributed along the bar at 10 mm intervals, spanning the full conduction path. Three interchangeable insulated test sections, brass at 25 mm diameter, brass at 16 mm diameter, and stainless steel at 25 mm diameter, each 30 mm in length, allow systematic variation of material and cross-sectional area for controlled heat transfer experiments. The radial module comprises a 110 mm diameter brass disc of 6 mm thickness, fitted with 6 temperature sensors at 10 mm intervals and water-cooled on its outer boundary. A central electrical heater drives heat radially outward through the disc. The power control circuit delivers a continuously variable output across the 0–150 W range, with a measurement range extending to 200 W. A control panel provides digital readout of all temperatures and heating power; an optional data acquisition system interfaces via a selector switch on the control panel. All probes operate over −100°C to 400°C with 0.1°C resolution.
Software
ThermoFlux - 7044 (Optional)
Scope of Delivery
Q1: What types of heat conduction experiments can be performed on the ThermoFlux - 7043?
The ThermoFlux - 7043 supports linear heat conduction experiments, including temperature profile determination for different materials, disturbance analysis, and thermal conductivity measurement, as well as radial heat conduction experiments covering temperature profile determination and radial thermal conductivity measurement.
Q2: What interchangeable test sections are supplied with the linear module?
Three insulated test sections with temperature sensor arrays are provided: brass at 25 mm diameter × 30 mm length, brass at 16 mm diameter × 30 mm length, and stainless steel at 25 mm diameter × 30 mm length. These allow investigation of the effects of cross-sectional area, material conductivity, and series combinations.
Q3: How many temperature measurement points does each module contain?
The linear module contains 9 temperature sensors positioned at 10 mm intervals along the bar. The radial module contains 6 temperature sensors at 10 mm intervals across the brass disc.
Q4: What cooling supply is required to operate the ThermoFlux - 7043?
Cooling water from a standard laboratory tap is required. It is fed to one end of each test module, the linear cooler section and the outer boundary of the radial disc, to maintain a steady temperature gradient during experiments.
Q5: Is the DAQ software included as standard?
No. The ThermoFlux - 7043SW DAQ software is an optional accessory developed in the National Instruments™ LabVIEW™ environment. It runs on any Windows™ operating system and, when selected, is supplied with a set of electronic sensors.