Mark Kedzierski, researcher at the National Institute of Standards and Technology (NIST) has developed a method to improve the energetics efficiency of cooling systems for large commercial buildings. The principle is based on the addition of small amounts of lubricant in the coolant, this addition enhancing heat transfer.
M. Kedzierski has developed the rules to follow to select the most appropriate type of lubricant used in the cooling system additive. The optimum is reached when the full lubricant coolant from the standpoint of the surface tension and viscosity.
The lubricant then forms a film on the surface of the cooling liquid, which improves the passage performance in gas phase. If this discovery is validated on a large scale system, it would save about 1 320% of billion kWh used
annually by the cooling systems in the United States, or the equivalent of 5,5 million barrels of oil per year.