Utilization of Vertical Wave Movement for Sea Water Pumping

Abstract

This study aims to produce a wave pump design with a vertical motion piston, find and identify variables that significantly affect the pumping discharge (Q) and analyze and obtain the relationship between the influential variables studied with Q. This study is an experimental study in a laboratory using glass channels. equipped with a wave generator. A float type pump that moves vertically is simulated with wave height and period (Hi & T), water depth (d), piston tube diameter (D), float diameter and width (Dw & b), and pumping height (h), both to get the effect of each on the discharge (Q), as well as to find the formulation of the relationship between these parameters. For analysis of research results, dimensionless parameter relationships are used in the relationship Q ≈ .h, where  is a combination of influential parameters in dimensionless form,  =  (Hi, L, W, A₁, A₂, d, b). The results showed that the performance of the vertical motion pump was quite satisfactory by producing a discharge Q at a certain value of h.The resulting pumping discharge (Q) is quite significant because it is influenced by Hi/L, b/L, d/L, A₁/A₂, h/Hi and W/pgHi³. It has been found that the empirical equation Q/√gh⁵ =   can be used at a certain pumping height (h) to produce pumping discharge (Q).