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Likely not.
On first thought, it appears to make sense, because pure nitrogen is not flammable and thus reduces the risk of the hot flame igniting the balloons fabric hull.
But this is not easily feasible, because the flame, if directly heating the balloon filling, needs the airs oxygen content to burn completely.
You could use a premixed-flame burner that mixes air and a combustible gas prior to entering the combustion zone and heating the balloon filling gas. But still, this would require a gas tight balloon hull. And that is not desired in a hot-air type balloon, because thermal expansion and contraction of the balloon gas (air) during each burn/burn-pause cycle causes enormous differences in gas volume and requires a means of pressure-relief (i.e. an opening).
Improved Answer.
Interesting theories but the brief answer is that nitrogen is not used in hot air balloons, although it is sometimes used when it is extremely cold to boost the pressure in the fuel tanks, since the power output of the burners is dependent on the pressure. The burners draw liquid propane so the nitrogen is not drawn into the flame
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Why is hydrogen used to inflate hot air balloons?
Hydrogen is not used to inflate hot air balloons. Just regular air is used which is then heated to make the balloon more buoyant as hot air weighs less than cold air. Hence the name hot air balloons.
Why were hot air balloons important to the civil war?
Hot air balloons were used for reconnaissance during the civil war.
How do hot air balloons use air to fly?
Hot air balloons use the fact that hot air rises as a way to make balloons fly. When the air inside the balloon is heated, it rises, and this creates lift which is used to make the balloon fly.
What source is used to fly hot air balloons?
Wind !... The balloons are filled with hot air, which causes them to rise. They are then at the mercy f the wind direction.
Where in the atmosphere do hot air balloons float?
Hot air balloons float because hot air displaces cool air in the atmosphere
Which gas do you use for hot air balloons?
Hot air is used for hot air balloons.
What are hot air balloons used for now a days?
Hot air balloons are now mostly used for leisure
Why is hydrogen used to inflate hot air balloons?
Hydrogen is not used to inflate hot air balloons. Just regular air is used which is then heated to make the balloon more buoyant as hot air weighs less than cold air. Hence the name hot air balloons.
Why were hot air balloons important to the civil war?
Hot air balloons were used for reconnaissance during the civil war.
Which gas is used in hot air balloons?
Just regular air, which is heated. That's why they are called hot air balloons! The fuel gas used for heating the air is usually propane.
How were hot air balloons used by the military?
The first use of hot air balloons was in the American Civil War for surveillance of troop movements.
How do hot air balloons use air to fly?
Hot air balloons use the fact that hot air rises as a way to make balloons fly. When the air inside the balloon is heated, it rises, and this creates lift which is used to make the balloon fly.
How were hot air balloons used during World War 1?
Hot air balloons were used to spy on the enemy. They were also used to communicate, send supplies, and drop bombs.
What source is used to fly hot air balloons?
Wind !... The balloons are filled with hot air, which causes them to rise. They are then at the mercy f the wind direction.
Which gas is in hot air balloons?
Mostly nitrogen, since a hot air balloon uses air & air is mostly nitrogen.Let your ears hear what your lips are saying !The hot-air balloon rises because it is inflated with . . . . . . . . wait for it . . . . . . . . hot air !
Is helium only used in balloons and air ships?
Helium is the most used gas for balloons; sometimes hot air and rarely hydrogen.
How are Hot air balloons being used today?
flying
