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theetruscan · 03-13-2003, 01:04 PM

OK, so I searched long an hard for this one (5 seconds of googling is a lot for a lazy bastard). And here, from http://www.procooling.com/articles/h...er_coolin2.php That's right, procooling, we have the following statements:

"I could bring up a table of the heat capacity and conductivity of the other additives, but this has been well discussed in other articles and forum threads. Simply put, pure water is the best at moving heat if you are measuring a static system. If you are using a chiller to go below ambient, consider methanol as an additive to reduce the freezing temperature not Antifreeze. Antifreeze is very thick at low temperatures. At normal temperatures, the only performance known enhancement is a surfactant such as Water Wetter™ or soap. However, remember that pure methanol is poisonous and flammable. Silicone tubing may allow methanol fumes to migrate out and reach unpleasant concentrations in a poorly ventilated room."

Water Wetter "Reduces surface tension and increases heat transfer efficiency because of reduced skin effect."

Oh, and your comment that water wetter works by having coolant not boil makes no sense. Coolant boiling is catastrophic. The Glycol/Water mixture shouldn't be boiling, the deal is that it transfers more heat.

03-13-2003, 01:04 PM	#24
theetruscan Cooling Neophyte Join Date: Jan 2003 Location: OR/CA/NY Posts: 81	OK, so I searched long an hard for this one (5 seconds of googling is a lot for a lazy bastard). And here, from http://www.procooling.com/articles/h...er_coolin2.php That's right, procooling, we have the following statements: "I could bring up a table of the heat capacity and conductivity of the other additives, but this has been well discussed in other articles and forum threads. Simply put, pure water is the best at moving heat if you are measuring a static system. If you are using a chiller to go below ambient, consider methanol as an additive to reduce the freezing temperature not Antifreeze. Antifreeze is very thick at low temperatures. At normal temperatures, the only performance known enhancement is a surfactant such as Water Wetter™ or soap. However, remember that pure methanol is poisonous and flammable. Silicone tubing may allow methanol fumes to migrate out and reach unpleasant concentrations in a poorly ventilated room." Water Wetter "Reduces surface tension and increases heat transfer efficiency because of reduced skin effect." Oh, and your comment that water wetter works by having coolant not boil makes no sense. Coolant boiling is catastrophic. The Glycol/Water mixture shouldn't be boiling, the deal is that it transfers more heat.