Recent content by Shannon hunt

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    Calculating the Maximum Safe Volume of Ethanol in a Confined Space

    Hello The lower flammability point of ethanol is 3.5% v/v. How can I work out the max volume of ethanol in a specified space to be lower than the flammability point Eg If I have a 100l vessel 3.5% will be 3.5l of vapour in that 100l vessel that will make it ignitable - how can I convert 3.5 l of...
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    Help with compressed air thrust

    If your thinking launching grappling hooks and repelling along them you would do well to fire your hook from a gas source compressed air or a stable gas like helium , I would use something like a simple ascender for rope climbing attached to a high torque motor and battery pack thinking like a...
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    Quietly Pump Water 11ft - Ideas for Sump Pump Solutions

    You need to find the constant fill rate of the sump and buy the right pump I suggest varda pumps they are excellent very quite stainless in the important parts if you want a trickle flow get a pump with a low flow rate all the pump packs will have charts , but my suggestion would still be a high...
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