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The image shows a labeled diagram of a hot air balloon with two sections: left section is a full labeled diagram of a hot air balloon; the right section explains the mechanism of how hot air and cool air work with arrows. The left diagram labels, from top to bottom, are Parachute valve, Goers, Envelope, Panels, Skirt, Burner, Rope, Basket, and Propane cylinder. The right section contains two balloons showing the different states of air inside, labeled Hot air (light) at the top and Cool air (heavy) at the bottom, with an explanatory note stating "mix propane with air to produce flame to make hot air." The arrow indicates the upward movement of the hot air.
Given the complexity of the image, the above description may not be entirely accurate.
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Note: Both the topic and the answer were created by one of our users.
The diagram illustrates the workings of a hot air balloon.
Overall, it is clear that the envelope is the largest part of the total area. In addition, the diagram indicates that propane is the fuel that is used to produce hot air.
At the base of the hot air balloon, a propane cylinder is located in the basket. The propane then mixes with the air in the burner, producing a flame to heat the air. Next, the hot air rises inside the envelope, causing the balloon to rise from the ground because the hot air is lighter than the cool air in the surrounding atmosphere. Ropes are shown securing the basket section to the skirt of the envelope.
In addition to the skirt at the base of the envelope, gores and panels also form part of the envelope section. A parachute valve at the top of the envelope is a self-sealing flap. This allows the pilot of the balloon to control the rate at which the hot air can escape.
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