my company manufacturing chilling plants and we are developing new condensers and chillers for our machines. I want to use inner grooved and outer finned tubes in shell and tubes type condensers and chillers for improving the efficiency of the system but i have doubts about the scaling problem that generally comes in these machines. I think due to grooves inside the tubes the scales might not be able to be cleaned properly during descaling and this may decrease the efficiency of the system. Can any one give suggestions from your experience ?