The large steel rotunda that appear to drop as the gas is used. Do they have a water seal?
2006-08-31 11:38:20 · 2 answers · asked by Tulpamemnon 1 in Science & Mathematics ➔ Engineering
Yes, they have a water seal, which is why they get rusty at the bottom. The weight of the drum provides a steady pressure.
2006-08-31 16:34:24 · answer #1 · answered by cdrotherham 4 · 0⤊ 0⤋
A gasometer or gas-holder is a large container where natural gas or town gas is stored near atmospheric pressure at ambient temperatures. The volume of the container follows the quantity of stored gas, the pressure comes from the weight of the movable cap. Typical volumes for large gasometers are about 50000 m³, with 60 m diameter structures.
Gasometers tend to be used for balancing purposes (making sure gas pipes operate within a safe range of pressures) rather than for actually storing gas for later use. Gas is nowadays stored in large underground reservoirs such as salt caverns. Often gas is stored in the summer when it is cheap and sold in the winter when the price goes up.
2006-08-31 20:11:05 · answer #2 · answered by harsh 2 · 0⤊ 0⤋