This paper focuses on developing an efficient fuel storage and release method for hydrogen using lithium hydride hydrolysis for use in PEM fuel cells for low power sensor network modules over long durations. Lithium hydride has high hydrogen storage density and achieves up to 95e100% yield. It is shown to extract water vapor freely from the air to generate hydrogen and has a theoretical fuel sp...

The aim of this analysis is to assess the issues of cost, safety, performance, and environmental impact associated with the production of hydrogen by so called "Area II" technologies, not presently funded by the U.S. DOE Hydrogen Program. The hydrogen (H2) rich feedstocks considered are: water, hydrogen sulfide (H2S) rich sub-quality natural gas (SQNG), and ammonia (NH3). Three technology areas...

Challenges facing fuel cell hybrid vehicles is in implementing a control strategy to find the optimal split of power between the different power sources. This paper proposes a mathematical model of power flow in such vehicles taking into consideration power train losses. Linear programming locates the global optimum indicating the finest synchronization among power units in an attempt to lower ...

Abstract Hydrogen has been widely touted as a solution to the looming crisis of energy security and climate change. Hydrogen in fuel cells can be used to power vehicles with the emission of only water. Providing hydrogen on a national scale in the United States, however, will be difficult. Hydrogen for transportation would require an enormous change in America's infrastructure, with a need to b...

Hydrogen internal combustion engine (ICE) vehicles present much of the same promise as hydrogen fuel cell vehicles (FCVs): reduced reliance on imported oil and reduced carbon dioxide emissions. Proponents envision hydrogen ICE as a bridging technology from gasoline vehicles to hydrogen FCVs. This paper examines the hydrogen ICE technology, focusing on relevant aspects such as power, fuel econom...

The promise of hydrogen resides in its being a clean and efficient energy source. This paper examines this promise in the context of hydrogen production, transportation, delivery and end use. Several fossil fuel feedstocks as well as renewable sources are examined. The cost and efficiency analysis as well as a potential market scenario for the development of light duty vehicles using hydrogen f...

In recent years significant progress has been made in the development of market applications for hydrogen fuel use in gas turbines. These applications include integrated gasification combined cycle (IGCC) and other types of process/power plants. Development of a new application using gas turbines for significant reduction of power plant CO2 emissions has initiated extensive efforts to expand th...

in this research the simulation of an air independent proton exchange membrane fuel cell (pemfc) propulsion system was taken into consideration. the system consists of several parts including pem fuel cell stack, metal hydride and liquid oxygen (lox) tanks, and also pre-heaters of oxygen and hydrogen gases along with other heat exchangers, to ensure proper operation of system. the heat recovery...