Year: 2019
Type: dissertation
Abstract: As global warming and energy crisis issues continue to increase, it becomes critical to investigate new sources of clean and affordable energy. Liquid hydrogen, is an attractive energy alternative as the byproduct of hydrogen combustion is non pollution and useful water vapor. High hydrogen liquefaction work represents the most important obstacle to achieving feasibility in the hydrogen economy. In this thesis, a hydrogen liquefaction system is analyzed by using a hydrogen liquefaction method both with and without catalyst infused heat exchangers. The goal is to assess, modify and improve the proposed systems with the ultimate goal of achieving sustainable and environment friendly hydrogen production. The main objective of this work is to present detailed thermodynamic, environmental, and economic analyses of the proposed multi-generation energy systems. The study shows that when compared to the primary (main system), significant improvements in energy and exergy efficiencies can be made by modifying the system by employing vortex tubes, Organic Rankine Cycle (ORC), and the aid of a catalyst. In fact, at 25oC the overall exergy efficiency of a configuration employing ORC is 42% as opposed to 12% for the main system. This system also has the highest energy efficiency of 76% as oppose to 10% for the main base system.
Author: Anwar Hammad
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W3100712080