Heat Exchanger Supply Unit WL 110

Heat Exchanger Supply Unit

Type: WL 110
Name: Heat Exchanger Supply Unit
WL 110 - A product from the GUNT 2E range
Technical Description

  Heat exchangers transfer thermal energy from the flow of one medium to another. The two flows do not come into direct contact with one another. Efficient heat transfer is a prerequisite for economical processes.  Therefore, different heat exchanger types are used in practice depending on the requirements.
  This experimental unit can be used to investigate and compare different heat exchanger designs. The complete experimental setup consists of two main elements: WL 110 as supply and control unit and choice of heat exchanger: Tubular heat exchanger (WL 110.01), plate heat exchanger (WL 110.02), shell and tube heat exchanger (WL 110.03) and jacketed vessel with stirrer and coil (WL 110.04). Water is used as the medium.
  The heat exchanger to be investigated is connected to the supply unit. The hot water flows through the heat exchanger. Part of the thermal energy of the hot water is transferred to the cold water. Reversing the water connections changes the direction of flow and thus allows parallel flow or counterflow operation.
  The main function of the WL 110 is to provide the required cold and hot water circuits. To do this, the supply unit is equipped with a heated tank and pump for the hot water circuit, connections for the cold water circuit and a switch cabinet with displays and controls. A temperature controller controls the hot water temperature. The flow rate in the hot water and cold water circuit is adjusted using valves. The cold water circuit can be fed from the laboratory mains or the WL 110.20.

  The GUNT software consists of a software for data acquisition and an educational software. With explanatory texts and illustrations the educational software significantly aids the understanding of the

theoretical principles. With the aid of an authoring system, the teacher can create further exercises.

  Sensors record the temperatures and flow rates. The measured values are read from digital displays and can be transmitted simultaneously via USB directly to a PC where they can be analysed using the software.

  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 a heat exchanger (WL 110.01 to WL 110.04)
- plotting temperature curves
- determining the mean heat transfer coefficient
- comparing different heat exchanger types



* Heat exchanger supply unit (WL 110.01-WL 110.04)1
* Heat  exchanger operation in parallel flow or

  counterflow possible

Available accessories
WL 110.01 -- Tubular Heat Exchanger
WL 110.02 -- Plate Heat Exchanger
WL 110.03 -- Shell & Tube Heat Exchanger
WL 110.04 -- Jacketed Vessel with Stirrer & Coil
WL 110.20 -- Water Chiller
WP 300.09 -- Laboratory Trolley
Alternative products
WL 302 -- Trainer Tubular Heat Exchanger
WL 308 -- Heat Transfer in a Tubular Heat Exchanger
WL 315C -- Trainer for Various Heat Exchangers
WL 110 Series - Heat Exchanger with Supply Unit

[1] supply unit for heat exchangers
[2] hot water circuit with tank, heater, temperature controller, pump and protection against lack of water
[3] cold water circuit from laboratory mains or water chiller WL 110.20
[4] temperature controller controls the temperature of hot water
[5] flow adjustable using valves
[6] digital displays for 6 temperature and 2 flow rate sensors
[7] water connections with quick-release couplings
[8] stirring machine connection with speed adjustment (WL 110.04)

[9] functions of the GUNT software: educational software and data acquisition

[10] GUNT software via USB under Windows Vista or Windows 7

Technical Data

- power consumption: 120W
- max. flow rate: 600L/h
- max. head: 30m

- power output: 3kW
- thermostat: 0...70°C

Hot water tank: approx. 10L
Measuring ranges
- temperature: 6x 0...100°C

- flow rate: 2x 20...250L/h

Dimensions and Weight

LxWxH: 1000x670x550mm

Weight: approx. 60kg

Required for Operation

230V, 50/60Hz, 1 phase or 230V, 60Hz/CSA, 3 phases

Cooling water 500L/h

Scope of Delivery

1 experimental unit

1 CD with authoring system for GUNT educational software
1 GUNT software CD + USB cable
1 set of instructional material