Glicol For Solar Panels

Propylene glycol pg has become the most common heat transfer fluid used in closed loop solar heating systems that contain antifreeze.

Glicol for solar panels.

Always mix in as little glycol as possible to keep optimum efficiency but never risk burst pipes. Hydronic heating systems must be filled with water to provide the heat transfer fluid htf that makes them work. Prosol l ht is a clear yellow colored practically odorless liquid based on virgin not recycled propylene glycol water and specially designed industrial package of liquid inhibitors it has been designed specifically for use as a heat transfer fluid in solar thermal systems operating under elevated thermal conditions vacuum tube collectors. Dynalene solar glycol xt msds page 5 of 5 whitehall pa 18052 610 262 9686 date of printing.

However no warranty is expressed or implied regarding the accuracy of these data or the results to be obtained from the use thereof. Sentinel r100 solar thermal fluid is glycol based and designed for use in solar heating equipment operating up to 200 c. This is obviously catastrophic for any solar thermal installation and must be avoided. During static conditions the solar collectors should be completely empty so that the thermal fluid is not exposed to extreme temperatures.

The process of filling the plumbing system with this antifreeze while purging all the air out must be done systematically and in the right order. For solar thermal applications mixtures based on propylene glycol or the green glycol are recommended. When you re choosing a glycol bear in mind the following. The renewable green alternative to ethylene or propylene glycol has a slower thermal degradation rate than both ethylene glycol and propylene glycol and outperforms propylene glycol s viscosity at lower temperatures.

Air in the loop can cause pump. When commissioning a pressurized glycol solar hot water system it is essential that all the air in the solar loop is removed. Never use less than 20 glycol in the mix. Solar water heating systems that use an antifreeze solution propylene glycol or ethylene glycol as a heat transfer fluid have effective freeze protection as long as the proper antifreeze concentration is maintained.

It has a long track record over many decades in this application and is widely available from a number of sources. Antifreeze fluids degrade over time and normally should be changed every 3 5 years.