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 Products:  Thermodynamics, Heating and Sanitary Systems » Applied Thermodynamics » Air-to-Water Heat Exchangers » WL 320
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WL 320: Water Cooling Tower

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Water Cooling Tower

Water Cooling Tower Water Cooling Tower Water Cooling Tower

Product Details

Technical Description
Cooling towers are a special type of counterflow heat exchanger. Warm water is sprayed from the top down through the column while airflows up through the column. Cooling is predominantly due to the evaporation of the water. The amount of water evaporated is measured. A fan supplies a variable cooling airflow. All important process parameters including the water flow rate are measured electronically and displayed. The measured values can be transferred to a PC for analysis and further processing. A data acquisition card and software are included. Four further cooling columns are available as accessories.

Learning Objectives / Experiments
- Familiarisation with a cooling tower and its
  principal parts
- Measurement of the airflow rate, air and water
  temperatures and atmospheric humidity
- Changes of the state of air on an h-ω diagram
- Determination of the cooling capacity
- Calculating the process parameters

* Clear experimental set-up on a table1
* Processing of the measured values on a PC1
* Transparent, easily exchangeable cooling columns1
* Complete experiment instructions
[1] Model of a cooling tower with open water circuit
[2] Benchtop unit
[3] Cooling column cross-section 150x150mm, orifice dia. 80mm, column exchangeable
[4] Minimisation of water loss by demister at column outlet
[5] Compensation of water loss by supply tank 4.2L
[6] PC data acquisition with LabView software with
h-ω diagram
[7] Radial fan
[8] Heater, three settings, with thermostat
[9] Pump 0.7kW

Technical Data
Packing density column: 110m²/m³
Heater, 3 stages: 0.5-1-1.5kW
Thermostat: switches off at 50°C
- power consumption: 0.25kW
max. differential pressure: 430Pa
- max. flow rate: 13m³/min
- power consumption: 0.7kW
- max. head: 34m
- max. flow rate: 34L/min
Measuring ranges
- flow rate: 12...360L/h
- differential pressure: 0...10mbar
- humidity measurement: 10...90% rel. humidity
- temperature: 0...100°C
System requirement: Windows XP

Dimensions and Weight
l x w x h : 1110 x 460 x 1228 mm
Weight : approx. 90 kg

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

Scope of Delivery
1 cooling tower, completely assembled
1 cooling column
1 data-acquisition card with software
1 instruction manual

Order Details
060.32000  WL 320  Water Cooling Tower
Available accessories
WL 320.01 -- Cooling Column, Type 2
WL 320.02 -- Cooling Column, Type 3
WL 320.03 -- Cooling Column, Type 4
WL 320.04 -- Cooling Column, Type 5

SELKA GmbH, Hamburg
Grindelallee 188, 20144 Hamburg / Germany
Tel.: + 49 (0) 40 343453 |  Fax: +49 (0) 40 63657075
E-Mail:   |  Internet:

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