Selecting the right Pfannenberg chiller
Heat is a single common by-product of today’s manufacturing machines that include the advanced automation technology required for both high speed operation and high precision.
Components such as spindle motors, variable frequency drives, laser and x-ray sources all require cooling to operate properly and reliably – most often in the very adverse manufacturing environments.
With manufacturing space at a premium, machine packages have become smaller and liquid cooling has emerged as the most efficient and economical means of removing process heat.
Liquid cooling is especially well adapted to hot, dirty environments, where it provides a method of removing the heat from the machine and not contributing additional heat back into the environment.
There is a 6-step guide to help you select the proper chilled for your application …
- Determine the heat load – It is important to determine the heat load of your application to ensure the chosen chiller is big enough for the intended application.
- Determine the coolant type, temperature and flow rate – When the heat load is known, the next step is to determine the coolant, its target temperature and the flow rate that the chiller must provide to the process. This is determined by the method from which the heat is transferred from the process to the coolant and the type of coolant being used. For example, water has different characteristics than oil.
- Identify installation environment – In what environment will the chiller be installed? Indoor applications for example can see high temperatures and dirty atmospheres, while outdoor installations can experience both low and high ambient temperatures. This can affect chiller sizing and require accessories such as air filters, sump heaters, etc.
- Use chiller performance curves – Now use the chiller performance curves available to select a chiller model that meets or exceeds the required capacity based on the chilled water supply temperature and the highest expected ambient air temperature.
- Check pump performance curves – Some liquid cooled systems have small coolant flow paths or longer distances that can have higher than average pressure losses.
- Final selection – Finally, consider that the remaining application requirements such as power characteristics, control options, footprint, agency listing, colour, etc. are met by the selected standard Pfannenberg chiller. Choosing a standard chiller will bring you greater reliability, easier service with common spare parts and global support.
Pfannenberg offers a versatile range of packaged chillers, ranging in sizes from 1 kW to 150 kW insuring the proper capacity available for most applications.
These packaged chillers are ready to use requiring only piping and power to install as part of your solution for process cooling applications – you are even provided with the coolant.
Ethylene & propylene glycol coolants, with proper corrosion inhibitors are available in a variety of packaging options – both full strength and pre-mixed.
Each chiller model includes the pump, tank, refrigeration system and controls required for simple installation and reliable, efficient operation.
Please call 01244 288138 or email info@dbicontrol.co.uk if you want help selecting the right Pfannenberg chiller for your application.
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