I can't provide any particular references, but I'm pretty sure someone/few people have. I remember Jeff Taylor and Curt Newport went pretty high with CO2 deployment going back a few years.Hey sorry to jack this thread but I have a question that I've had some trouble finding info about. I read that co2 ejection systems have only been tested to pressures equal to 80000 feet, but I'm curious, has anyone flown them above that?
The primary reasons why pyrotechnic driven puncture is so common with commercial CO2 devices is (1) simplicity of the design and (2) you need significant power to puncture the bulb to ensure you achieve maximum throughput from the bulb. Remember, the diaphragm to be punctured is generally of a very small area of itself and it needs to withstand well over 1000psi pressures (a CO2 bulb will get well beyond that on a hot day) which translates to a reasonably strong material to puncture. So, not only do you need the power to puncture the diaphragm, you need to puncture it as widely as possible to maximise the flow through the puncture to increase the reliability of a successful deployment ie. more throughput=more deployment power.