The fuel commonly stored in a sack is called "coal." It is often packaged in burlap or other types of sacks for ease of transport and storage. Coal is used for heating and electricity generation. Other examples of sack-stored fuels include wood pellets and charcoal.
Diesel is a fuel that is used in cars and stored in tanks. Gasoline / Petrol is another fuel that is used in cars and stored in tanks.
Erna Sack's birth name is Weber, Erna.
Another word for the coarse sack is a "gunnysack" or "potato sack."
fuel tank
The fuel is usually stored in tanks which are strapped to the sides of the basket.
Rocket fuel is typically stored in fuel tanks within the rocket's structure. The tanks are often made of lightweight materials such as aluminum or composite materials to minimize weight. The fuel may be stored separately from the oxidizer in different tanks, or they may be stored together as a single fuel mixture.
Tobacco is stored in a tobacco pouch. The young is stored in a marsupials pouch. A pouch is simply a sack-like item for storing whatever the owner of the pouch wants to put inside.
Energy
I-sack
A burlap bag. A potato sack A gunny sack
In the aeroplane fuel storage compartment
Chemical Energy.