F1-4 Applications of surfactant drag reduction for practical air conditioning systems in Japan.

Abstract

Drag reduction caused by surfactant solutions is considered to be one of the most effective ways to reduce the running cost in closed-loop district heating and cooling systems. Many researches of drag reduction have been highly developed in recent years. However, the drag reducing effect for practical air conditioning systems have not been applied widely in Japan. Several problems encountered in the application are discussed in this paper.