Total Disolved Solids
The following extract taken from an article by Ingo Paul in Energy Issues No 19 April 1999 published by the World Bank [external link] briefly describes the difference between a subcritical and a supercritical boiler. "Supercritical" is a thermodynamic expression describing the state of a substance where there is no clear distinction between the liquid and the gaseous phase (i.e. they are a homogenous fluid). Water reaches this state at a pressure above 22.1 megapascals (MPa) The "efficiency" of the thermodynamic process of a coal fired power (sic) describes how much of the energy fed into the cycle is converted into electrical energy. The greater the output of electrical energy for a given amount of energy input, the higher the efficiency. If the energy input to the cycle is kept constant, the output can be increased by selecting elevated pressures and temperatures for the water-steam cycle. Up to an operating pressure of around 19 MPa in the evaporator part of the boiler, the cycle is sub-critical. This means, that there is a non-homogeneous mixture of water and steam in the evaporator part of the boiler. In this case a drum-type boiler is used because the steam needs to be separated from water in the drum of the boiler before it is superheated and led into the turbine. Above an operating pressure of 22.1 MPa in the evaporator part of the boiler, the cycle is supercritical. The cycle medium is a single phase fluid with homogeneous properties and there is no need to separate steam from water in a drum. Once-through boilers are therefore used in supercritical cycles. www.whizkris.com
That is called boiling. And it is something you can see and observe, but it is something tht is chemically relted and so it is a chemical change.
Condensate is what you get when you condense steam (water) that was heated in a boiler to make the steam. I'm not sure what else you are looking for.
Mostly to drive the steam turbine. Smaller amounts may be used for in house tasks like preheating feed water.
It scavanges oxygen in water systems to prevent corrosion of piping.
Steam boilers work by boiling water to generate steam. The steam then is used to heat the engine.
Coal
A steam accumulator on some once through boilers, with no steam/water drum, is a device similar to a steam separator, which separates the steam and water before the steam is fed to the steam header.
boiler use many type of working fluids like water, Mercury, liquid sodium, etc., but steam generator works only with water as working fluid. hence all steam generator are boilers but all boilers are not steam generators...
A steam generator is simply a heat exchanger that is commonly used to change water into steam. This can also be described as low water content boilers.
All boilers are not coil type think of the pork chop steam boilers AKA cast iron sectional
boiler use many type of working fluids like water, mercury, liquid sodium, etc., but steam generator works only with water as working fluid. hence all steam generator are boilers but all boilers are not steam generators...
Steam boilers create steam.
William Henry Shock has written: 'Steam boilers: their design, construction, and management' -- subject(s): Steam-boilers, Steam-boilers, Marine
Fire tube and water tube. Steam Boiler and Water Boiler.
R. Armstrong has written: 'A rudimentary treatise on steam boilers' -- subject(s): Steam-boilers
To generate steam to drive turbines to generate electricity, Steam used for air conditioning systems, heating ,hot water ,process applications, driving steam engines , boilers to run ships using super heated steam, auto clave's, portable heat /hot water for buildings. smaller boilers to generate power to run cars