When operating conditions in a refinery, sulfur recovery plant, or hydrogen production plant cause the pressure in the plant to rise, valves automatically open to divert the gases to the flare. There, the burning of excess hydrocarbons yields water and carbon dioxide.
The scale for measuring the intensity of hurricanes is called the Saffir-Simpson scale and is based on the highest sustained wind velocities near the center of the storm. Tropical Depression: 0-38 mph.Tropical Storm (given a name): 39-73 mph. Category 1 Hurricane: 74-95 mph (116-153 km/hr).here is no scale specifically for measuring hurricane damage. The Saffir-Simpson scale measure hurricanes based on wind speed, which can be used to estimate what damage may o â¦ ccur.
Hurricane Severity Index. The Hurricane Severity Index (or HSI) is a hurricane rating system which defines the strength and destructive capability of a storm. The HSI uses equations which incorporate the intensity of the winds and the size of the area covered by the winds.