Optimasi Pompa Air Laut Energi Gelombang

• Main Author: Perpustakaan UGM, i-lib
• Format: Article NonPeerReviewed
• Published: [Yogyakarta] : Universitas Gadjah Mada 2003
• Subjects: Jurnal i-lib UGM
• Online Access: https://repository.ugm.ac.id/23328/; http://i-lib.ugm.ac.id/jurnal/download.php?dataId=6273
• Institution: Universitas Gadjah Mada

Among energy resources, sea waves is one which is renewable. Sea waves provide an alternative energy which is available largely. This type of energy however, has not been explored in Indonesia. Flap-type wave energy pump is a new technology to elevate sea water and flow it to land, utilizing the wave energy. The method is described in this paper. Pump optimization was conducted using experimental method utilizing wave flume in which piston, valve and piston tube were redesigned. Regular and not breaking wave was used. The pump characteristic was tested with variation of depth (d), wave height (H), wave period (T), weight of valve ball (w), and displacement of valve ball (yk) with constant z. Results of this research indicated that an optimum efficiency (lip) was found at w = 0,93 and yk = 0,14. Using wave height (H) from 2,225 to 12,25 cm at water depth (d) of 50, 55, and 60 cm, wave period (T) of 1,79, 2,24, 2,68, 3,13, 3,58, and 4,03 s, showed that flap-type wave energy pump gained high efficiency. Pump efficiency reached 34,7% at (H/he)(Lb/ A) = 20,86 and z/d = 0,54, and will decrease along with the increasing wave length (L), wave height (H), flap wide (b) and the decreasing head (he), and piston diameter (D). Using a flap-type wave energy pump instead of the conventional electrical motor pump, may give some additional benefits : no fuel and pollution free Key words : wave energy, pump, efficiency.