What happens when you fill a hot air balloon with helium?
April 9, 2009 by Custom Advertising Balloons
Filed under More Balloon Answers
Can you answer jasm1548’s question about Balloons?:
We want to build a helium balloon (larger than a standard party balloon) for use in an school project. We’ve found templates for traditional hot air balloons. If we fill a balloon with helium instead of hot air, will it still float the same?
If we build it so that we can close the hole on the bottom and the helium won’t escape… will it work?
We want to build a helium balloon (larger than a standard party balloon) for use in an school project. We’ve found templates for traditional hot air balloons. If we fill a balloon with helium instead of hot air, will it still float the same?
If we build it so that we can close the hole on the bottom and the helium won’t escape… will it work?
Will the traditional hot air balloon shape be appropriate for a helium balloon?
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Feedback: it bursts. i think so
Feedback: no, the helium will escape from the big hole in the bottom.
Feedback: Hot air balloons have a big hole in the bottom so the operator can heat up the air with a heater. If you used helium, it (the helium) would quickly diffuse out into the atmosphere. It wouldn’t work for long.
Feedback: Yes it will
helium is lighter than air so will not fall through the hole in the bottom and if used indoors it will float ok.
outside wind might cause loss of your gas
Feedback: Yes it should work. You are essentially making a blimp. Blimps have been used with Helium and they are much larger then a party balloon. They are shaped the way they are for aerodynamics but it would work in your shape. So it is theoretically possible to float something large with helium in a similar design to a hot air balloon.