"Vapor phase refrigeration removes heat 50 times as effectively as traditional forced air and 5 times better than forced liquid cooling. This is because the refrigerant removes heat when it changes phase from a liquid to a gas. This process, known as latent heat of evaporation, is probably something you learned about in physics class -- or experienced on a windy day at the swimming pool. Because of its efficiency and reliability, vapor phase refrigeration has been used for decades in home appliances and in many commercial cooling applications throughout the world. The technology has become increasingly important in high performance electronic systems with high thermal flux densities, where vapor phase refrigeration is less cumbersome and more effective than liquid cooling. Vapor phase refrigeration provides a robust solution to the most difficult thermal management challenges in current and future generation electronic systems."