Compressing He, or helium, helps with a weather balloon engine by increasing the density and pressure of the gas inside the balloon, which allows the balloon to lift more weight and reach higher altitudes.
The ideal pressure for compressing He in a weather balloon engine varies depending on factors such as the size and weight of the balloon, as well as the desired altitude. Generally, a pressure of around 1.5 to 2 atmospheres is recommended for optimal lift.
Compressing He does add to the cost of a weather balloon launch, as it requires specialized equipment and can be a limited resource. However, the increased lift and altitude achieved by compressing He can also lead to more accurate data collection and potentially lower overall costs in the long run.
Yes, there are safety concerns when handling He for a weather balloon engine. Helium is a non-toxic gas, but it is highly flammable and can cause asphyxiation if inhaled in large quantities. Proper safety precautions, such as wearing protective gear and handling the gas in a well-ventilated area, should always be taken.
Yes, other gases such as hydrogen and hot air can be used for a weather balloon engine. However, He is the most commonly used gas due to its availability, stability, and non-flammability. Other gases may also require different equipment and safety measures.