A major problem in geothermal power plants, where the silica dust comes up along with the steam. Very corrosive by sand blasting. A cyclone is one trick to separate dust and vapour.
The steam. Steam passing through a turbine spinning at a speed of 3600rpm will have a tip velocity on it largest wheel of about 1800 feet per second. In order to reach that speed the steam must be moving at least that fast through the blades. that is about 1200 miles per hour, or more than 1 1/2 times the speed of sound. The steam also over time picks up impurities from the steam pipe to the turbine, these will cause erosion similar to sand blasting. The water in the boiler has impurities that can't be removed effectively, one is silica. At high temperature in the boiler the silica vaporizes into the steam passages, as it passes through the turbine the steam cools and the silica solidifies again into deposits on the turbine blades. There are other causes but these are the most common.
Silica is usually measured for 2 reasons, if Silica is carried over into the steam from the boiler, it can deposit on the blades causing pitting and eventually either efficiency losses or catastrophic failure of the blades, secondly it is measured after the condenser, this is to check for condenser tube leaks, because if the river water breaks through then the silica levels will shoot up. Hope it helped. Reference: (Work at an e.on-uk powerplant)
Rhyolite is silica-rich, containing over 70% silica. It is an extrusive igneous rock with a fine-grained texture that forms from the rapid cooling of magma rich in silica content.
The passenger capacity of a steam train can vary significantly depending on its design and purpose. Typically, a standard steam locomotive pulling passenger cars can carry anywhere from 100 to over 1,000 passengers. Some smaller steam trains, like those used in tourist attractions, might accommodate fewer than 50 passengers. Ultimately, the exact number depends on factors such as the number and type of cars attached to the locomotive.
Yes you can, it doesn't make a difference.
Silica gel packs can last for approximately two years if stored in airtight containers. Over time, the silica gel will eventually absorb moisture and may need to be replaced. It is recommended to check the silica gel regularly for effectiveness.
Igneous rocks typically contain high levels of silica, with compositions ranging from about 45% to over 70% silica. This silica content influences the overall properties of igneous rocks, such as their color, density, and volcanic activity. Rocks with higher silica content are generally lighter in color and less dense, while those with lower silica content are darker and denser.
Steam is boiled up water that is over 100 degrees centigrade
The silica content will vary from one volcano to the next and will even vary over time for a single volcano. On average, though, composite volcanoes erupt intermediate rocks that are 52-63% silica.
A steam train is used for getting material over countries.
Alkali-silica reaction is seen in concrete structures where reactive silica from aggregates combines with alkalis in the cement, forming a gel that expands under moist conditions, leading to cracking and degradation of the concrete over time.
Composite volcanoes are often associated with moderate to high silica contestant, though in reality, the magma composition will vary over time.