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#fuelcell

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@Salty @leanlearnlead charging being slower because shitty #batteries are used instead if #Methanol #FuelCell|s is one thing, but why can't I just chug in a banknote into a machine or pay at a teller at a "Charging Station" and get like an SMS, eMail or any other notification when it's done?

  • Cash aside, there's no reason in the age of #NFC-enabled parking meters to not have the same convenience as those, as a #ChargingStation doesn't have the excuse of "no grid electricity" to be kneecapped.

Worse even if someone's vehicle doesn't have a #CC2 charging port (basically all scooters ≤15kW / 90km/h)...

Continued thread

It could be useful in some places sometimes. City deliveries for example.

Hydrogen is inefficient, yes, but a battery is heavy, requires rare earth metals and must be charged often.

Even if this bicycle idea fails, the fact that such a small fuel cell exist is good.

Maybe it could be backup power for mobile phone masts, hospitals, or something along those lines?

Method for automated high performance closed batch cultivation of gas-utilizing methanogens. #methanogens #anaerobic #fuelcell #microbialfuelcell #energy link.springer.com/article/10.1

SpringerLinkMethod for automated high performance closed batch cultivation of gas-utilizing methanogens - AMB ExpressTo advance the utilization of microbial cell factories in gas fermentation processes, their physiological and biotechnological characteristics must be understood. Here, we report on the construction and operation of a novel device, the Gas and Pressure Controller (GPC), which is specifically designed for the automated control of the headspace gas pressure of closed cultivation bottles and facilitates automated gassing, sparging, monitoring and regulation of the headspace volume operated in closed batch cultivation mode in real time.As proof of concept, the physiological and biotechnological characteristics of four autotrophic, hydrogenotrophic methanogenic archaea were examined to quantify novel physiological limits through the elimination of gas limitation during growth and methane formation. We determined unprecedented high maximum specific methane productivity (qCH4) values for: Methanothermobacter marburgensis of 169.59 ± 12.52 mmol g− 1 h− 1, Methanotorris igneus of 420.21 ± 89.46 mmol g− 1 h− 1, Methanocaldococcus jannaschii of 364.52 ± 25.50 mmol g− 1 h− 1 and Methanocaldococcus villosus of 356.38 ± 20.79 mmol g− 1 h− 1. Obtained qCH4 of M. marburgensis is more than 10-fold higher compared to conventional closed batch cultivation set-ups and as high as the highest reported qCH4 value of M. marburgensis from fed-batch gas fermentation in stirred tank bioreactors. Furthermore, the GPC demonstrated reliable functionality with Methanococcus maripaludis, operating safely and autonomous during long term cultivation. This novel device enables optimal headspace pressure control, providing flexibility in application for various gas-fermenting biotechnological processes. It facilitates near optimal cultivation conditions in semi-continuous closed batch cultivation mode, the analysis of limiting factors in high-throughput experimental design and allows for automated biomass production of autotrophic, hydrogenotrophic methanogens. Graphical abstract

Method for automated high performance closed batch cultivation of gas-utilizing methanogens. #methanogens #anaerobic #fuelcell #microbialfuelcell #energy link.springer.com/article/10.1

SpringerLinkMethod for automated high performance closed batch cultivation of gas-utilizing methanogens - AMB ExpressTo advance the utilization of microbial cell factories in gas fermentation processes, their physiological and biotechnological characteristics must be understood. Here, we report on the construction and operation of a novel device, the Gas and Pressure Controller (GPC), which is specifically designed for the automated control of the headspace gas pressure of closed cultivation bottles and facilitates automated gassing, sparging, monitoring and regulation of the headspace volume operated in closed batch cultivation mode in real time.As proof of concept, the physiological and biotechnological characteristics of four autotrophic, hydrogenotrophic methanogenic archaea were examined to quantify novel physiological limits through the elimination of gas limitation during growth and methane formation. We determined unprecedented high maximum specific methane productivity (qCH4) values for: Methanothermobacter marburgensis of 169.59 ± 12.52 mmol g− 1 h− 1, Methanotorris igneus of 420.21 ± 89.46 mmol g− 1 h− 1, Methanocaldococcus jannaschii of 364.52 ± 25.50 mmol g− 1 h− 1 and Methanocaldococcus villosus of 356.38 ± 20.79 mmol g− 1 h− 1. Obtained qCH4 of M. marburgensis is more than 10-fold higher compared to conventional closed batch cultivation set-ups and as high as the highest reported qCH4 value of M. marburgensis from fed-batch gas fermentation in stirred tank bioreactors. Furthermore, the GPC demonstrated reliable functionality with Methanococcus maripaludis, operating safely and autonomous during long term cultivation. This novel device enables optimal headspace pressure control, providing flexibility in application for various gas-fermenting biotechnological processes. It facilitates near optimal cultivation conditions in semi-continuous closed batch cultivation mode, the analysis of limiting factors in high-throughput experimental design and allows for automated biomass production of autotrophic, hydrogenotrophic methanogens. Graphical abstract
Replied in thread

@KarlHeinzHasliP @denki Personally, I think that standardized #batteries that get swapped would've been the solution to the charging speed problem.

#BEV|s are a problem and the #EnergyDensity and #Charging problems are hard walls that can only be circumvented (i.e. swapping fluids at a #RedoxFlow-#Battery) or ignored (i.e. #Methanol #FuelCell)...

Solving the #EnergyProblem isn't a technological issue, but a political one (see #DESERTEC)...