I had a Saturday evening thought and I just can't find the correct words to google to get the equation I need to answer this, so I turn to the forum for help.
My thought is:
If you had a sealed compartment of air (think closed sealed coupler) with an actuated release valve that is closed at sea level / the launch site - would it build up enough pressure to be used as the "ejection charge" for a vented laundry bay using shear pins at +10km, +25km...?
What if you add a bike tire stem and pressurize to 100psi (or some other value) before launch?
Effectively, is it possible to use the pressure differential between sea level and a given altitude to allow a sealed vessel to be used as an "ejection charge" negating the need for BP?
My thought is:
If you had a sealed compartment of air (think closed sealed coupler) with an actuated release valve that is closed at sea level / the launch site - would it build up enough pressure to be used as the "ejection charge" for a vented laundry bay using shear pins at +10km, +25km...?
What if you add a bike tire stem and pressurize to 100psi (or some other value) before launch?
Effectively, is it possible to use the pressure differential between sea level and a given altitude to allow a sealed vessel to be used as an "ejection charge" negating the need for BP?