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PHD dissertation sumary: Research on the use of ULSD biodiesel fuel blend on marine diesel engines

Object and scope: Small ship diesel engines with the range of power from 50 hp to 100 hp; traditional diesel fuel with 0.05% sulfur content, ULSD with 0.001% sulfur content, and Biodiesel originated from coconut oil; fabrication of ultrasonic wave-based equipment/system to produce homogeneous fuel blend;fuel supply system, exhaust system, and control and test system of the engine; testing equipment for engine power and emissions parameters. | MINISTRY OF EDU. amp TRAINING MINISTRY OF TRANSPORT HO CHI MINH CITY UNIVERSITY OF TRANSPORT TRAN VIET DUNG RESEARCH ON THE USE OF ULSD-BIODIESEL FUEL BLEND ON MARINE DIESEL ENGINES Speciality Mechanical Engineering Code 9520116 Supervisors 1 Assoc. Prof. Dr. Hoang Anh Tuan Supervisors 2 Prof. Dr. Le Anh Tuan PHD DISSERTATION SUMARY HO CHI MINH CITY - 2021 This dissertation was completed at Ho Chi Minh City University of Transport Supervisors 1 Assoc. Prof. Dr. Hoang Anh Tuan Supervisors 2 Prof. Dr. Le Anh Tuan Reviewer 1 Reviewer 2 Reviewer 3 This dissertation will be defended before the Dissertation Evaluation Council meets at Ho Chi Minh City University of Transport at .hours.minute date. 2021. This dissertation can be found at the library - Library of Ho Chi Minh City University of Transport - Nationnal Library of Viet Nam. 1 INTRODUCTION Urgency The International Maritime Organization IMO mandated the use of ultra-low sulfur diesel ULSD fuel in shipping from January 1 2020. Compliance with the new regulation on sulfur content in the fuel used for ships when ships operate in an emission control area can be achieved by using fuel with a sulfur content of 0 0015 at all times of ship operation or switching from high-sulfur fuel to 0 0015 sulfur fuel when the ship enters an emission control area. Fuel switching during the ship operation can present a number of problems related to fuel characteristics such as viscosity lubricity flash point combustion quality. Therefore for ships using ULSD fuel it is necessary to equip a cooler system to overcome the disadvantage of ultra-low viscosity like ULSD. Due to this reason the combination of two fuel types such as ultra low- viscosity ULSD and high-viscosity Biodiesel BO fuel aiming to form a new fuel type which satisfies not only the required viscosity and renewable properties but also the requirement of reducing the cost of ship operation will have a great significance in terms of economy technology and emissions. .