Controlling autonomous underwater floating platforms using bacterial fermentation
메타 데이터
바이오화학분류
바이오정밀화학
연료
논문
Controlling autonomous underwater floating platforms using bacterial fermentation
학술지
Applied microbiology and biotechnology
저자명
Biffinger, Justin C.; Fitzgerald, Lisa A.; Howard, Erinn C.; Petersen, Emily R.; Fulmer, Preston A.; Wu, Peter K.; Ringeisen, Bradley R.
초록
<P>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.</P>