According to environmental impact of fossil fuel, growth population and demand for energy, it is compulsory to replace the fossil fuel with renewable energy. Hydropower as a renewable energy possesses a lot of potential to provide energy and it is essential to improve the kinetic energy devices to harness the energy of water.
Mechanical Engineering Faculty, Universiti Teknologi Malaysia, Malaysia
Marine Technology Centre (MTC), Universiti Teknologi Malaysia, Malaysia
Global warming and air pollution have become one of the important issues to the entire world community. Exhaust emissions from ships has been contributing to the health problems and environmental damage. This study focuses on the Strait of Malacca area because it is one of the world’s most congested straits used for international shipping where located on the border among three countries of Indonesia, Malaysia and Singapore. This study will predict CO2 emission from the marine transport. This is accomplished by developed a ship database in the Straits of Malacca by using the data which obtained from Automatic Identification System (AIS). From the database, MEET methodology is used to estimate the CO2 emission from ships.
Ocean and Aerospace Research Institute, Indonesia
Mechanical Engineering Faculty, Universiti Teknologi Malaysia, Malaysia
The estimated torque and thrust coefficients in four quadrants of marine propeller in a LNG manoeuvre control system is essential for the total performance of the vessel. A Chebyshev n-order polynomial that approximated a continuous function over the interval advance speed J [-1, 1] to calculate the torque and thrust coefficients as well as the shaft speed, is utilized to get the propeller properties. The Dynamical modeling and simulation of the marine propeller across the four quadrants are schemed and applied to the marine propeller B-4.58. The results are compared with both open water experiments and open water numerical tests using ANSYS-Fluent. The comparisons show that the chebyshev polynomial agreed well with both experiments and numerical tests and deduce that the polynomial provides a new practically approach estimation on torque and thrust coefficients in four quadrants of marine propeller for the vessel operations. Then the polynomial coefficients from Chebyshev n-order polynomial were used to express the mathematical model for the propeller thrust and torque characteristics and applied in the manoeuvring simulation programming.
Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
Marine Technology Centre, Unversiti Teknologi Malaysia, Malaysia
Floating Liquefied Natural Gas (LNG) recently are new in the offshore platform and operation, since it is new so it is important to analyzed the stability and seakeeping of this vessel. This project are conducting stability assessment and seakeeping of Floating Liquefied Natural Gas (LNG) with initially it has to design the hull by referring the basic dimension of FPSO KIKEH that located at the 120 km northwest of Labuan Island which is the environmental location of this project. Hence this project are using Maxsurf for designing the hull, Hydromax to do stability assessment and Seakeeper for seakeeping analysis which is to generate wave spectrum and Response Amplitude Operator and hence to analyzed the motion characteristic of this vessel behavior in the research location.
Ocean and Aerospace Research Institute, Indonesia
Mechanical Engineering, Universiti Teknologi Malaysia, Malaysia
