Heat transfer fluids target solar and geothermal applications
Three new heat-transfer liquids, which are part of the company’s Antifrogen and Protectogen product family, are specially developed for use in solar thermal energy systems and geothermal systems, especially flat-plate collectors and heat-pipe systems. Antifrogen Solar is a propylene-glycol-based aqueous product that is designed to protect metal components against corrosion. It maintains its fluidity at low temperatures, virtually eliminating the risk of bursts, says the manufacturer. It has a frost resistance of –28°C and a maximum permanent use temperature of 150°C. Antifrogen Solar is also available as a concentrate. Antifrogen Geo (monoethylene glycol) is specifically designed to meet the requirements of heat transfer fluids in shallow geothermal energy applications, where fluid choice is critical to safe operation. ProtectogenN Eco is a multi-purpose heat transfer fluid based on monoethylene glycol containing an effective combination of inhibitors for long-lasting protection against frost and corrosion in many different systems. Permanent usage temperatures range from –50 to 100°C. — Clariant, Muttenz, Switzerland