Liquid Cooling Blogliquid cooling loop http://blog.lytron.com Cold Plates, Chillers, Cooling Systems, Heat Exchangers, and Liquid Cooling Mon, 16 Jan 2012 19:48:57 +0000 en hourly 1 http://wordpress.org/?v=3.0 Heat Exchanger MTBF http://blog.lytron.com/2009/11/16/heat-exchanger-mtbf/ http://blog.lytron.com/2009/11/16/heat-exchanger-mtbf/#comments Mon, 16 Nov 2009 17:07:38 +0000 Ben http://blog.lytron.com/?p=238 Continue]]>
Heat Exchanger ES Series

Heat Exchanger ES Series

Lytron frequently receives questions through its “Ask an Engineer” website form. A customer recently asked us the following question: “We’re planning on using one of your flat tube heat exchangers for radar cooling. What is the MTBF for your ES Series heat exchangers?” 

We do not provide MTBF (Mean Time Between Failure) data for our standard heat exchangers because MTBF depends largely on the type of usage and environmental conditions. Our ES Series heat exchangers are aluminum vacuum brazed heat exchangers and they are thoroughly inspected for leaks or defects prior to shipping. Usage or environmental conditions that could cause this type of heat exchanger to fail include clogging of the fins by sand, dust, or dirt, fin damage due to blasting by particles or other forces, internal corrosion due to not using proper corrosion inhibitors in the liquid, or corrosion due to the use of dissimilar metals in the liquid cooling loop.
 

]]> http://blog.lytron.com/2009/11/16/heat-exchanger-mtbf/feed/ 0 Glycol Concentrations http://blog.lytron.com/2009/09/29/glycol-concentrations/ http://blog.lytron.com/2009/09/29/glycol-concentrations/#comments Tue, 29 Sep 2009 19:33:29 +0000 Harry http://blog.lytron.com.verndale-staging.com/?p=19 Continue ]]>
glycol concentrations

EGW Wordle

Many customers ask us what concentration of ethylene glycol we recommend they use in their chillers, cooling systems, and/or liquid cooling loops. It depends quite a bit on your thermal and mechanical requirements, such as required thermal performance, how often you replace your fluids, if you are concerned about corrosion, etc. For most applications, however, we recommend using a solution consisting of 30% ethylene glycol and 70% water (EGW). Water has the best thermal performance, while the inhibited glycol provides freezing point suppression and corrosion protection.

When higher concentrations of glycol are used, it can cause problems within your cooling loop. Over time, the concentration of glycol will increase due to evaporation of water from the system. When the glycol concentration is too high, glycol will collect in pump seals forcing them apart and creating a leak path.

What concentration of glycol are you using? Have you experienced any problems in the past because of your glycol concentration? Please share your experiences.

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