scholarly journals STUDI POTENSI PEMBANGKIT LISTRIK TENAGA GELOMBANG LAUT DENGAN METODA OSCILATING WATER COLUMN DI PERAIRAN KENDARI INDONESIA

2019 ◽  
Vol 4 (1) ◽  
pp. 7
Author(s):  
Faulincia Faulincia
Keyword(s):  
Water Column ◽  
Alternative Energy ◽  
Water System ◽  
Electrical Energy ◽  
Ocean Wave ◽  
Oscillating Water Column ◽  
Alternative Energy Sources ◽  
Column System ◽  
Ocean Wave Energy ◽  
Wave Conversion

<p>Referring to Law Number 30 of 2007 concerning Energy, the development of techniques the conversion of electrical energy by using alternative energy sources is interesting for followed for the past few years. This paper discusses calculation analysis power potential of ocean wave conversion using the Oscilating Water system Column (OWC) in the marine area of Indonesia. This system was chosen because it has many advantages compared to other systems and in accordance with the marine and coastal areas of Indonesia. From the calculation of power, the smallest power that can be produced is equal to 348.5838 Watts while the biggest power that can be produced is 623291.4 Watts The application of the oscillating water column system in Kendari waters with an efficiency of 11.971%.<br />Keywords. oscillating water column (OWC), ocean wave energy, electrical energy, power potential,<br />wavelength</p>

Peluang Peluang dan tantangan pengembangan teknologi Oscilating Water Column (OWS) di Indonesia.

2021 ◽  
Vol 4 (01) ◽  
pp. 37-42
Author(s):  
Sigit Arrohman ◽  
Dwi Aries Himawanto
Keyword(s):  
Renewable Energy ◽  
Water Column ◽  
Wave Energy ◽  
Ocean Waves ◽  
Primary Energy ◽  
Energy Development ◽  
Ocean Wave ◽  
Oscillating Water Column ◽  
Column System ◽  
Ocean Wave Energy

Renewable energy is one of the government's efforts to increase the source of the national electricity supply and reduce fossil energy sources. Indonesia has the potential to develop renewable energy in the fields of ocean waves, sunlight, water, and geothermal. But of all these, the most promising to become renewable energy development opportunities are water energy, geothermal energy and ocean wave energy. Indonesia as an archipelagic country with an area of ​​1,904,556 km2 which consists of; 17,508 islands, 5.8 million km2 of ocean and 81,290 million km of beach length, the potential for marine energy, especially ocean waves, is very potential to be empowered as new and renewable alternative primary energy, especially for power generation. This ocean wave power plant has been widely developed, including: buoy type technology, overtopping devices technology, oscillating water column technology. Oscillating Water Column (OWC) is an alternative technology to convert ocean wave energy using an oscillating water column system. The ocean wave conversion technology of the OWC system was chosen because it is suitable in areas with steep coastal topography and has a wave height value between 0.2 m to 1.19 m and even exceeds so that the electricity generated is greater. OWC technology which will be developed for the territory of Indonesia has several opportunities and challenges. Opportunities and challenges that will be faced include the potential for waves, the application of OWC to waterways in Indonesia, OWC systems, and technology investment for the prospect of long-term energy development in Indonesia.  

scholarly journals Oscillating water column plant

2021 ◽  
Vol 44 ◽  
pp. 47-50
Author(s):  
Dan Maimon
Keyword(s):  
Environmental Impact ◽  
Water Column ◽  
Wave Motion ◽  
Electrical Energy ◽  
Oscillating Water Column ◽  
Economical Method ◽  
Column System ◽  
The Waves ◽  
Column Plant ◽  
No Emissions

This article is describing the way of construction and operation of an oscillating water column system in order to recover as much as possible from the waves energy. The oscillating water column plant is used for the production of electrical energy by tidal currents, and it is currently the most widespread and economical method for the conversion of wave motion. The environmental impact of these infrastructures remains very low: no emissions of gas or any waste during their operation. In addition, the swell is a formidable source of energy.

scholarly journals SIMULASI GELOMBANG AIR DANGKAL UNTUK PEMBANGKIT ENERGI OSCILLATING WATER COLUMN

2018 ◽  
Vol 7 (1) ◽  
pp. 25 ◽  
Author(s):  
EKA ANDHIKA KURNIAWAN ◽  
ANNISA ADITSANIA ◽  
P. H. GUNAWAN
Keyword(s):  
Water Column ◽  
Water Wave ◽  
Alternative Energy ◽  
Analytic Solution ◽  
Shallow Water Equation ◽  
Electrical Power ◽  
Oscillating Water Column ◽  
Wave Problem ◽  
Alternative Energy Sources ◽  
Sea Wave

Development of human causes the increasing of the demand of energy for living. Sea wave energy is one of the alternative energy sources which is renewable and sustainable, no impact on environmental pollution. The goal of this paper is to simulate the level of water wave using shallow water equation for generating energy oscillating water column. The solution of the equation is approximated using LaxFriedrich scheme and will be compared with the analytic solution in standing wave problem. Simulation is used to obtain the results of the energy in the form of electrical power generated by ocean wave. The results of the error of numerical validation is obtained 0.32%. Moreover, the results of the potential energy depend on the height of the surface waves is found 1574.46 Watts the average of water level is 0.881 meters.

scholarly journals Electric propulsion of ships and its advantages for anchor lifting towing vessels

2021 ◽  
Vol 44 ◽  
pp. 51-58
Author(s):  
Dan Maimon
Keyword(s):  
Water Column ◽  
Electric Propulsion ◽  
Wave Motion ◽  
Electrical Energy ◽  
Oscillating Water Column ◽  
Economical Method ◽  
Column System ◽  
The Waves ◽  
Column Plant ◽  
No Emissions

This article is describing the way of construction and operation of an oscillating water column system in order to recover as much as possible from the waves energy. The oscillating water column plant is used for the production of electrical energy by tidal currents, and it is currently the most widespread and economical method for the conversion of wave motion. The environmental impact of these infrastructures remains very low: no emissions of gas or any waste during their operation. In addition, the swell is a formidable source of energy.

On the Efficiency of Oscillating Water Column (OWC) Devices in Converting Ocean Wave Energy to Electricity Under Weakly Nonlinear Waves

2012 ◽  
Author(s):  
Jean-Roch Nader ◽  
Song-Ping Zhu ◽  
Paul Cooper
Keyword(s):  
Water Column ◽  
Wave Energy ◽  
Ocean Wave ◽  
Recent Effort ◽  
Oscillating Water Column ◽  
Mean Power ◽  
Weakly Nonlinear ◽  
Ocean Wave Energy ◽  
Mean Power Output ◽  
Incident Waves

Oscillating Water Column (OWC) devices are regarded as one of the most promising systems developed to harness ocean wave energy. In this paper, we present some preliminary results of our most recent effort in the research of trying to improve the efficiency of OWCs with a focus on the comparison of incident waves being in the linear and weekly nonlinear regimes. As the results show, the counted-in nonlinearity at the second order could contribute to more than a 50% increase in the maximum mean power output.

scholarly journals Computational Fluid Dynamics Model of Wells Turbine for Oscillating Water Column System: A Review

2021 ◽  
Vol 2053 (1) ◽  
pp. 012013
Author(s):  
N. Abdul Settar ◽  
S. Sarip ◽  
H.M. Kaidi
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Water Column ◽  
Cfd Simulation ◽  
Oscillating Water Column ◽  
Wells Turbine ◽  
Flow Problems ◽  
Cfd Models ◽  
Column System ◽  
Cfd Method

Abstract Wells turbine is an important component in the oscillating water column (OWC) system. Thus, many researchers tend to improve the performance via experiment or computational fluid dynamics (CFD) simulation, which is cheaper. As the CFD method becomes more popular, the lack of evidence to support the parameters used during the CFD simulation becomes a big issue. This paper aims to review the CFD models applied to the Wells turbine for the OWC system. Journal papers from the past ten years were summarized in brief critique. As a summary, the FLUENT and CFX software are mostly used to simulate the Wells turbine flow problems while SST k-ω turbulence model is the widely used model. A grid independence test is essential when doing CFD simulation. In conclusion, this review paper can show the research gap for CFD simulation and can reduce the time in selecting suitable parameters when involving simulation in the Wells turbine.

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