Saving Energy of Water Pump with Fluiglide Coating

Abstract

Firstly, this paper describes the theory of the measurement at site on the water pump to understand the current performance of the pump such as head, horse power and pump efficiency. The multiple calculations based on the thermodynamics and the special loop calculation makes it possible to quantify the performance relevant value without inputting the actual flow. Secondly, the polyester based “Fluiglide” coating is introduced to optimize the performance of the existing pump in which the deterioration is obviously recognized. The improvement of surface roughness, lubrication property and water resistance with “Fluiglide” has realized the less frictional loss and the identical flow area during the operation. Thirdly, the technology of “CorroGlass” is also noted to sustain the durability of coating for a longer period since the damage of used pump requires the proper surface to apply “Fluiglide”. The combination of the performance measurement and “Fluiglide” coating has achieved the recovery of pump efficiency and clarified the return of investment before all the coating work is implemented.
Statistical data which has been collected for a decade reveals the certain decrease of efficiency in used pump and indicates the possibility of recovery by applying the “Fluiglide” coating. It is true that most of the pumps with 100-400kW electric motor at site have spent excessive running cost per year due to the inefficient flow.
Some of the case studies from UK and Japan have shown the decrease of the efficiency and the increase of the horse power in the used pump, comparing them with the ones measured during the manufacturing. After applying the “Fluiglide” coating, the user has recognized the noticeable decrease of horse power to achieve more efficient operation.
Return of investment was guaranteed in early stage and the technology of Fluiglide was admitted by the user.