scholarly journals Chemical-Equilibrium Analysis with Adjoint Derivatives for Propulsion Cycle Analysis

2017 ◽  
Vol 33 (5) ◽  
pp. 1041-1052 ◽  
Author(s):  
Justin Gray ◽  
Jeffrey Chin ◽  
Tristan Hearn ◽  
Eric Hendricks ◽  
Thomas Lavelle ◽  
...  
Keyword(s):  
Chemical Equilibrium ◽  
Equilibrium Analysis ◽  
Chemical Equilibrium Analysis

scholarly journals Chemical equilibrium analysis for hydrolysis of magnesium hydride to generate hydrogen

2012 ◽  
Vol 37 (17) ◽  
pp. 12114-12119 ◽  
Author(s):  
Takehito Hiraki ◽  
Shun Hiroi ◽  
Takuya Akashi ◽  
Noriyuki Okinaka ◽  
Tomohiro Akiyama
Keyword(s):  
Chemical Equilibrium ◽  
Magnesium Hydride ◽  
Equilibrium Analysis ◽  
Chemical Equilibrium Analysis ◽  
Hydrolysis Of

A Fuel Cell Project for Advanced Thermodynamics Courses

2006 ◽  
Author(s):  
David Blekhman
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Chemical Equilibrium ◽  
Equilibrium Analysis ◽  
Cell Reaction ◽  
Nernst Equation ◽  
Fuel Cell Performance ◽  
Chemical Equilibrium Analysis ◽  
Fuel Cell Operation ◽  
Non Equilibrium

Secondary thermodynamics courses study advanced energy cycles. They have also started to include some introduction to fuel cell operation. Seemingly difficult, the fuel cell concepts can naturally be drawn from the topics of chemical equilibrium, which are also introduced in these courses for chemical reactions and combustion. The Nernst equation, a cornerstone of fuel cell operation, is based on a change of the Gibbs energy in a non-equilibrium fuel cell reaction. The resulting terms in the Nernst equation include the concentrations of the reactants, which dynamically change as the fuel and oxidizer deplete in the reaction while flowing through the cell. This becomes particularly interesting in high temperature fuel cells that incorporate fuel reforming and fuel utilization into a single system. The introduced fuel cell project proposes to combine the chemical equilibrium and non-equilibrium concepts simultaneously coexisting in a high temperature fuel cell. Relatively low operational temperatures allow for a simplified chemical equilibrium analysis of the fuel flowing in the fuel cell while superimposing it on the fuel cell reaction and fuel/oxidizer utilization. The variety of fuel and oxidizer mixtures, operating temperatures and pressures allows for creating a large number of individualized assignments. Students will benefit from a project that reinforces their understanding of fuel cell performance while increasing their comfort with chemical equilibrium concepts.

Alkali Metals in Circulating Fluidized Bed Combustion of Biomass and Coal: Measurements and Chemical Equilibrium Analysis

2005 ◽  
Vol 19 (5) ◽  
pp. 1889-1897 ◽  
Author(s):  
Michal P. Glazer ◽  
Nafees A. Khan ◽  
Wiebren de Jong ◽  
Hartmut Spliethoff ◽  
Heiko Schürmann ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Chemical Equilibrium ◽  
Alkali Metals ◽  
Circulating Fluidized Bed ◽  
Equilibrium Analysis ◽  
Fluidized Bed Combustion ◽  
Chemical Equilibrium Analysis ◽  
Circulating Fluidized Bed Combustion
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