Quote:
Originally Posted by Naytikos
My last ship had two 20K HP B&W diesels. Never had a scavenge fire but it fell to me to periodically check the bank of CO2 cylinders there to smother the fire if it ever happened.
Why?
Well we had a device using a radio-active isotope and geiger-counter which fitted around a cylinder and by sliding the probe up and down one could locate the level of liquid CO2. Everyone else on board was terrified of it in case they became sterilized or developed radiation sickness!
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What a ball-ache that device was - I found (and got Lloyds to approve the use of) that the hand held IR thermometer could reliably detect the liquid gas interface by the change in temperature due to the differing SHC of CO2 gas and liquid - still use it on camping gas cylinders!! (Lidl have the guns in occasionally for about £18)