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WL 110.03

FEATURES:
* Shell and tube heat exchanger for connection to WL 110 supply unit
* Media flowing in cross-flow

DESCRIPTION

Technical Description

Shell and tube heat exchangers are in widespread use. The main advantages of this design are the large heat transfer area and the compact design. Shell and tube heat exchangers are used in the chemical and pharmaceutical industries, in refineries and in process engineering plants.

The WL 110.03 is part of a series of units enabling experiments to be performed on different heat exchanger types. The experimental unit is ideally suited for investigating the functioning and behaviour of a shell and tube heat exchanger in operation.

The WL 110.03 is connected to  supply unit WL 110 using quick-release couplings. The shell and tube heat exchanger consists of seven tubes, surrounded by a transparent outer shell. The hot water flows through the tube space and the cold water through the space in the shell. Part of the thermal energy of the hot water is transferred to the cold water. Baffle plates are used to deflect the flow in the shell in such a way as to create greater turbulence and thus a more intensive transfer of heat. The media flows continuously in a cross-flow. Valves on the supply unit are used to adjust the flow rates of hot and cold water. The supply hose can be reconnected using quick-release couplings, allowing the flow direction to be reversed. This allows cross parallel flow and cross counterflow operation. Temperature sensors for measuring the inlet and outlet temperature are located at the supply connections on the WL 110.

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.


Learning Objectives / Experiments

In conjunction with WL 110 supply unit
- function and behaviour during operation of shell and tube heat exchanger
- plotting temperature curves
  * in cross parallel flow operation
  * in cross counterflow operation
- calculation of mean heat transfer coefficient 
- comparison with other heat exchanger types

FEATURES

Specification

[1] shell and tube heat exchanger (cross-flow) for connection to WL 110
[2] hot and cold water supply from WL 110
[3] cross parallel flow and cross counterflow operation possible
[4] transparent shell, visible tube bundle
[5] tube bundle consisting of 7 tubes and 4 baffle plates
[6] recording of temperature using WL 110


Technical Data

Heat transfer area: 200cm² 
Tube bundle, stainless steel
- outer diameter: 6mm
- wall thickness: 1mm 
Shell, transparent (PMMA)
- outer diameter: 50mm
- wall thickness: 3mm


Dimensions and Weight

LxWxH: 400x230x110mm
Weight: approx. 3kg
Scope of Delivery
1 shell and tube heat exchanger

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