Re: MSR Windboiler – Completed Review
Posted: Fri Dec 05, 2014 10:10 pm
Interesting thread this...
HJ -
Your chart seems to show that increasing altitude affecting the lowering of the temperature window for "decent" canister gas ignition, (you called this slack?). IE - the higher you go, the less pressure, "depressing the vaporization temperature of the fuel." - gas canisters should then "burn" easier at somewhat lower temps at altitude.
Concerning this altitude/ lowering of pressure/vaporization hypothesis...As the isopropane/butane mix is in a liquid state and under pressure inside of a metal canister at constant temperature, (remote from the vaporization area), why would any (slight) external pressure change outside (at the stovehead) matter? The gas is still a liquid while inside the can?
Temperature of the canister and/ or if your stove has a generator?...just wondering?
HJ -
Your chart seems to show that increasing altitude affecting the lowering of the temperature window for "decent" canister gas ignition, (you called this slack?). IE - the higher you go, the less pressure, "depressing the vaporization temperature of the fuel." - gas canisters should then "burn" easier at somewhat lower temps at altitude.
Concerning this altitude/ lowering of pressure/vaporization hypothesis...As the isopropane/butane mix is in a liquid state and under pressure inside of a metal canister at constant temperature, (remote from the vaporization area), why would any (slight) external pressure change outside (at the stovehead) matter? The gas is still a liquid while inside the can?
Temperature of the canister and/ or if your stove has a generator?...just wondering?