The diagram describes the components of a hot air balloon and the way it works.
Overall, it is clear that the hot balloon consists of 8 distinct parts, three of which are located in the envelope. Additionally, the hot air balloon is capable of flying due to the fuel produced using propane.
First, at the base of the hot air balloon, a propane cylinder is placed in the basket. The propane then mixes with air in the burner to result in flame, which is used to heat up the air. Following that, hot air rises inside the envelope, causing the balloon to rise high. This phenomenon happens owing to the fact that hot air weighs less than the cool surrounding air. Notably, the base is tied to the skirt of the envelope using ropes.
Next, the envelope is the largest part of the total area. Therefore, besides the skirt at the base, the envelope section is also formed by gores, panels and a parachute valve. The parachute valve is placed at the top of the envelope, which allows hot air to escape at a controlled rate.