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Products  |  Thermal Engineering and HVAC  |  Applied Thermodynamics  |  WL 110.01
WL 110.01 Tubular Heat Exchanger Show data sheet (pdf file) Print page
Technical Description

  Tubular heat exchangers represent the simplest type of heat exchanger and are the preferred solution for transferring heat with high pressure differences or between high viscosity media (e.g. sludge). An advantage is the uniform flow through the tube space. This space is free of flow dead zones.

  The WL 110.01 is part of a series of units enabling experiments to be performed on different heat exchanger types. In conjunction with the WL 110 service unit, which has a hot and cold water circuit and all of the necessary connections, the experimental unit is ideally suited for investigating the functioning and behaviour of a tubular heat exchanger in operation.
  The WL 110.01 is connected to the WL 110 using quick-release couplings. Hot water flows continuously through the inner tube and cold water through the outer tube. Part of the thermal energy of the hot water is transferred to the cold water. Valves on the service unit are used to adjust the flow of hot and cold water. The supply hose can be reconnected using quick-release couplings, allowing the flow direction to be reversed. This allows parallel flow and counterflow operation. Temperature sensors for measuring the inlet and outlet temperatures are located at the supply connections on the WL 110.  There are two additional temperature sensors on the tubular heat exchanger for measuring the temperature after half of the transfer distance.
  During experiments, temperature curves are plotted and displayed graphically. Additionally, the measured values can be recorded and processed using data acquisition software. The mean heat transfer

coefficient is then calculated as a characteristic variable.
  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.

Learning Objectives / Experiments
In conjunction with WL 110 service unit
- function and behaviour during operation of a 
  tubular heat exchanger
- plotting temperature curves
  * in parallel flow operation
  * in counterflow operation
- calculation of mean heat transfer coefficient
- comparison with other heat exchanger types
* Tubular heat exchanger for connection to
  WL 110 service unit1
* Visible flow channel due to transparent
  outer tube

[1] tubular heat exchanger for connection to WL 110
[2] hot and cold water supply from WL 110
[3] parallel flow and counterflow operation possible

[4] recording of temperature using WL 110 and two additional temperature sensors for measuring the central temperature

Technical Data

Heat transfer areas

- mean transfer area: 0,025m
Inner tube, stainless steel
- outer diameter: 12mm
- wall thickness: 1mm
Outer tube, transparent (PMMA)
- outer diameter: 20mm
- wall thickness: 2mm 
Measuring range
- temperature: 2x 0...100C


Dimensions and Weight

LxWxH: 480x230x150mm

Weight: approx. 4kg

Scope of Delivery

1 tubular heat exchanger
1 set of instructional material


Order Details
060.11001  WL 110.01  Tubular Heat Exchanger
© 2005 G.U.N.T. Gerätebau GmbH