Proposal of system for High Efficiency Energy Extraction from LNG and study of use of EGR and SCR system in Ships

Abstract

The paper focuses on the green shipping methodologies and environment friendly practices.
Liquefied Natural Gas (LNG) is one of the most effective alternatives to traditional shipping fuels.
Ports have LNG re-gasification systems, which generally use Open Rack Vaporizers (ORVs) to
convert the LNG to NG. In this process, a lot of the ‘cold energy’ is lost. A proposal for a LNG re-
gasification system has been made in this paper which can be installed both on-board a ship or in
a port and will successfully utilize the cold energy of LNG. In addition, analysis of the
experimentation of inert hydrogen gas used in cooling Exhaust Gas Recirculation (EGR) systems
on board ships to stop the production of NOx at peak temperatures in the engine chamber has
been done. The uses of various catalysts on Selective Catalytic Reduction (SCR) systems to curb
NOx production and data analysis on NOx reduction after treatment have been studied. Germane
and pertinent observations were taken for the following procedures.