Document Detail


Controlling autonomous underwater floating platforms using bacterial fermentation.
MedLine Citation:
PMID:  22851013     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Biogenic gas has a wide range of energy applications from being used as a source for crude bio-oil components to direct ignition for heating. The current study describes the use of biogenic gases from Clostridium acetobutylicum for a new application-renewable ballast regeneration for autonomous underwater devices. Uninterrupted (continuous) and blocked flow (pressurization) experiments were performed to determine the overall biogas composition and total volume generated from a semirigid gelatinous matrix. For stopped flow experiments, C. acetobutylicum generated a maximum pressure of 55 psi over 48 h composed of 60 % hydrogen gas when inoculated in a 5 % agar (w/v) support with 5 % glucose (w/v) in the matrix. Typical pressures over 24 h at 318 K ranged from 10 to 33 psi. These blocked flow experiments show for the first time the use of microbial gas production as a way to repressurize gas cylinders. Continuous flow experiments successfully demonstrated how to deliver biogas to an open ballast control configuration for deployable underwater platforms. This study is a starting point for engineering and microbiology investigations of biogas which will advance the integration of biology within autonomous systems.
Authors:
Justin C Biffinger; Lisa A Fitzgerald; Erinn C Howard; Emily R Petersen; Preston A Fulmer; Peter K Wu; Bradley R Ringeisen
Related Documents :
7332113 - First heart sound in atrial septal defect.
10408203 - Vocal expression of anger and cardiovascular reactivity within dyadic interactions.
6496763 - Acute resetting of carotid sinus baroreceptors. i. dissociation between discharge and w...
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-8-1
Journal Detail:
Title:  Applied microbiology and biotechnology     Volume:  -     ISSN:  1432-0614     ISO Abbreviation:  Appl. Microbiol. Biotechnol.     Publication Date:  2012 Aug 
Date Detail:
Created Date:  2012-8-1     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8406612     Medline TA:  Appl Microbiol Biotechnol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Chemistry Division, US Naval Research Laboratory, 4555 Overlook Ave., SW, Washington, DC, 20375, USA, justin.biffinger@nrl.navy.mil.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Gaze orientation interferes with mental numerical representation.
Next Document:  Implementation of a transhydrogenase-like shunt to counter redox imbalance during xylose fermentatio...