NUMERICAL INVESTIGATION OF THERMALLY COUPLED CATALYTIC MICROREACTORS USING COMPUTATIONAL FLUID DYNAMICS
Journal Title: Innoriginal: International Journal Of Sciences - Year 2017, Vol 4, Issue 2
Abstract
Ammonia decomposition thermally coupled with methane catalytic combustion in catalytic microreactors for hydrogen production was studied numerically, using a two-dimensional computational fluid dynamics model. The effect of flow configuration on the operation characteristics was studied, and different performance measures were evaluated to assess the operability of the reactor. It was found that for a given flow rate of combustible mixture, the maximum power generated is determined by extinction at large decomposition stream flow rates, whereas material stability determines the lower power limit. Complete conversion of ammonia can be achieved in both flow configurations. A proper balance of the flow rates of the decomposition and combustion streams is crucial in achieving this. The two flow configurations were contrasted based on multiple performance criteria. For highly conductive materials, the co-current and counter-current flow configurations behave similarly in all performance measures. The counter-current flow configuration shows superior performance albeit in a very narrow operating regime of highly conductive materials and high ammonia flow rates, whereas the co-current flow configuration enables lower temperatures and a wider spectrum of materials to be used.
Authors and Affiliations
JUNJIE CHEN, LONGFEI YAN
Keywords
Related Articles
- EP ID EP431214
- DOI -
- Views 146
- Downloads 0
STRESS AND IMMUNITY: BRIEF REVIEW OF MECHANISMS IN PSYCHONEUROIMMUNOLOGY
Psychoneuroimmunology is the term used for the interaction of the psychological stimulus with the immune system. The main objective of this paper is to have a thorough review of the mechanisms behind the immune changes d...
APPLICATION OF RESPONSE SURFACE METHODOLOGY (RSM) IN STATISTICAL OPTIMIZATION AND PHARMACEUTICAL CHARACTERIZATION OF A MATRIX TABLET FORMULATION USING METFORMIN HCL AS A MODEL DRUG
The present study is about the application of a statistical optimization tool in the pharmaceutical tablet formulation. The toil of numerous scientists for years resulted in evolvement of the modified application based o...
AYURVEDIC DRUGS USED IN THE PREPARATION OF KSHARA-SUTRA IN ANO RECTAL DISORDERS W.S.R. PILES,FISTULA
It is quite common for a patient to seek treatment of this disease through surgical intervention because this is only alternative known to the modern medical practitioners and the public in general. In modern surgery the...
A BRIEF PHARMACEUTICAL REVIEW ON FAST DISSOLVING TABLET
Tablet swigging trouble essentially influences the geriatric and pediatric populaces though the unpalatable taste of medications prompts persistent resistance. Swallowing issues additionally are regular in youthful peopl...
STAVUDINE LOADED NONIONIC SURFACTANT VESICLES: OPTIMISATION OF FORMULATION, EFFECT OF PROCESS VARIABLES AND CHARACTERISATION
Objective:The present work deals with the preparation, characterization and optimization of stavudine loaded nonionic surfactant vesicles (niosomes) for improvement in therapeutic index and efficacy of stavudine. Method...