الفهرس 
ABSTRACTOnly 14 pages are availabe for public view
 |  | from | 190 |  |  |
| | | from | 190 | | |
Abstract
Liquefied natural gas (LNG) has served as a marine fuel for many years, but primarily on LNG carriers as ”the boil off’ gas. It was utilized in marine boilers or dual fuel engines. It is only within last decade that the growth of LNG-fuelled vessel market has really taken in Europe. The emerging alternative fuel solution for ship propulsion appears increasingly to be natural gas. The sulphur oxide content in natural gas is negligible and emissions of sulphur oxides and Particulate Matters (PMs) from engines run solely on gas are virtually nonexistent (although a con.tribution will be present and dependent on the pilot fuel used for ignition and the lube oil). Thus, the use of natural gas will also eliminate the need of exhaust treatment systems or treatment to reduce the sulphur content in the fuel oil at the refmery. Chapter one has a brief introduction to reduction of emissions to air from ships using LNG. In order to overcome the problem of fossil fuel emissions, the world has started to search for new kinds of fuels to comply with the emission control regulations. Many teclmologies have been developed in order to make the internal combustion engines cleaner, some of these technologies are related with the engine design and control, chapter two discuss the solutions related to the type of fuel. Chapter three discuss the natural gas resources and the various processes beginning from the production and ending with the consumption positions. Chapter four has the detailed description for the natural gas as a marine fuel. The fuel adaptability for a certain application has the same importance of the other issues such as availability, economic and environment. Therefore, the objective of chapter five is to investigate the suitability of the different marine propulsion power plants when shifting to fuelled by natural gas, the study extended to illustrate the various ships types which may have the ability to be fuelled by NG.