BETAINE BASED HEAT TRANSFER FLUIDS AS A NATURAL SOLUTION FOR ENVIRONMENTAL, TOXICITY AND CORROSION PROBLEMS IN HEATING AND COOLING SYSTEMS

摘要

The reason for this R&D effort was the environmental risk and toxicity of many conventional heat transfer fluids like glycols. Fluid toxicity and environmental risk in building systems and industrial use is becoming increasingly less acceptable. Alternative fluids have been sought from among salt solutions and vegetable oils. Technical difficulties have made broad scale use of these alternatives not very attractive. Main technical problems have been high viscosity and corrosion.