The picture below shows how a hot balloon works. Summariez the infomation by selecting and reporting the main features.

The diagram illustrates not only several features comprised in the structure of a hot balloon but
also
how it operates.
It is clear that
there are 8 key parts involved, three of them are in the envelope, which is the biggest part of the total area.
Besides
, it is run by a heated combination of propane and wind. As can be seen, at the bottom, there is a pair of propane cylinders located in the basket which is used as an accommodation for people. The propane is mixed with wind and heated up in a burner in order to produce flame to make hot
air
for the operation.
Next,
hot
air
fills up the inside of the envelope whose skirt is connected to the lower section by a rope and
therefore
makes the balloon fly since the weight of hot
air
is lighter than cool
air
. Regarding the upper components, it consists of numerous panels, gores and a parachute valve.
Moreover
,
this
valve allows commuters to control the rate of the escape of hot
air
by a self-sealing flap.
Submitted by danphamngocha on

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