My Research

Numerical And Experimental Study Of A Small Wind Turbine Using Modified Clark Y Blades - (July 2021 - present).

Responsibilities:

• Development

We develop and install a small wind turbine using a modified Clark Y foil for the blades. Clark Y foil is one of asymmetric foils which has an advantage to improve lift force at small angles of attack. In this project we modified the foil by twisting in the spanwise direction and form 30o winglet on the foil tip. The numerical study is conducted in OpenFOAM 8.

The 3D CFD model is developed as it is seen in the figure below.

From the numerical study it is found that the modification provides a significant improvement on the lift force. Thus we continue lab scale experiments conducted in our wind tunnel.

Wind tunnel in our Lab
The lab scale experiments confirm the lift force improvement. That means the design is ready for the real scale in real environment experiments. We install the wind turbine finally in the campus backyard. It works great. We are all relief, happy and satisfied to see it running. However we still need to enhance the performance in the next stage. Next work is waiting …

Video

Under research : Wind Turbine with winglet tip - (January 2021 - present).

Responsibilities:

• Wind Turbine with winglet tip

The research is developed and tested horizontal axis wind turbines with 30, 45, and 60 degree tip angle. The research is funded under the scheme of matching fund by Indonesian Ministry of Education

Power Plant Engineering - Department of Mechanical Engineering and Energy, Politeknik Elektronika Negeri Surabaya (PENS), Surabaya, Indonesia (January 2019 - present).

Responsibilities:

• Maleo Platform Project

The aim of the project is to evaluate numerically wave-structure interaction on the company’s offshore platform using OpenFOAM. The evaluation is also to understand how the platform is influenced by the subsidence to provide service life analysis.

• Vertical Axis Tidal Turbine Project

The aim of the project is to develop a tidal energy generator system in Indonesia which will be installed within two years. The model which is developed using OpenFOAM covers the prediction of flow field around a vertical axis tidal turbine, enhancements of the generator’s performance and validation, optimize predictive simulations, and to perform reliability and financial analysis to support the end-product future market plan.

Renewable Energy Group - College of Engineering, Mathematics and Physical Science, University of Exeter, Penryn campus, United Kingdom (January 2018 - January 2019).

Responsibilities:

• OPERA (Open Sea Operating Experience to Reduce Wave Energy Cost) Project

Conducted mooring system assessments for the. The project was funded by the EU’s Horizon 2020 research and innovation (http://opera-h2020.eu/). The assessment covered the employment of elastomeric mooring tether, a new mooring line which was discovered by University of Exeter. The model was developed to perform dynamic analysis and reliability evaluation of the mooring system under various conditions. The model was validated with the real scale model which was installed and assessed in the site.

• Modular Tidal Generator (MTG) Project

Designed a mooring system for a renewable energy platform. The project was funded by the innovative UK. The platform supported a tidal energy converter which was going to be deployed in Asia and Africa. The design consisted of hydrodynamics analysis using Orcaflex and CFD approach using OpenFOAM. The CFD model development optimized the structure design based on the environmental load and extracted power by visualizing the flow regime and the converter time history dynamic motion.

• Marine-I Project

Modelled a subsea free fall drill for seabed sampling in deep water for (https://www.marine-i.co.uk/). The project was a collaborative project with an oil and gas company based in UK. The driller comprised of a drill and a base connected to a ship via an umbilical. The CFD method is performed to achieve hydrodynamics analysis by generating the driller model in OpenFOAM. The aim of the analysis is to obtain rapid deployment and recovery speeds to optimize the process and the cost.

Fluid Structure Interaction Group - Civil Maritime Engineering and Environmental Science, University of Southampton, Southampton, United Kingdom (January 2013 - January 2017).

Responsibilities:

• CFD Analysis for Fluid-Induced Vibrations Tidal Turbine Project

performed a CFD research in fluid structure interaction of a vertical axis tidal turbine blade using OpenFOAM. The research output was to investigate numerically a method to reduce locked-in vibration by modifying blade trailing edge. The research was funded by the Defense Science and Technology Laboratory (DSTL), UK. It was aimed to solve the flow induced vibrations and ‘singing’ phenomena appeared in propeller or other rotating devices.

Senior Lecturer and Researcher - Electronic Engineering Polytechnic Institute of Surabaya (EEPIS), Surabaya, Indonesia. (January 2007 - January 2013).

Responsibilities:

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Performed a research in CFD with focus on a tidal turbine performance using Ansys Fluent. The research was an initiative project to build a renewable energy device in Indonesia. My other research was conducting thermal analysis of a nano scale satellite for inter-university use in Indonesia. The analysis covered thermal and heat transfer aspects during the satellite launching and operation.

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Taught in Mechatronic Engineering and Power Plant Engineering Programmes for subjects of Fluid Mechanics, Heat Transfer, Thermodynamics, Engineering Statics and Dynamics, Manufactures.

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Supervising undergraduate final projects in Mechatronics Engineering Program.