Wikipedia
Steam generators are heat exchangers used to convert water into steam from heat produced in a nuclear reactor core. They are used in pressurized water reactors (PWR) between the primary and secondary coolant loops.
In other types of reactors, such as the pressurised heavy water reactors of the CANDU design, the primary fluid is heavy water. Liquid metal cooled reactors such as the Russian BN-600 reactor also use heat exchangers between primary metal coolant and at the secondary water coolant.
Boiling water reactors (BWR) do not use steam generators, as steam is produced in the pressure vessel.
A steam generator is a type of boiler used to produce steam for climate control and potable water heating in railroad passenger cars. The output of a railroad steam generator is low pressure, saturated steam that is passed through a system of pipes and conduits throughout the length of the train.
Steam generators were developed when diesel locomotives started to replace steam locomotives on passenger trains. In most cases, each passenger locomotive was fitted with a steam generator and a feedwater supply tank. The steam generator used some of the locomotive's diesel fuel supply for combustion. When a steam generator-equipped locomotive was not available for a run, a so-called "heating car" fitted with one or two steam generators was inserted between the last locomotive in the consist and the rest of the train.
Steam generators would also be fitted to individual cars to enable them to be heated independently of any locomotive supply.
In Ireland, Córas Iompair Éireann used "heating cars" as standard and CIÉ diesel locomotives were not fitted with steam generators.
A Steam generator is a device used to boil water to create steam. More specifically, it may refer to:
- Boiler (steam generator), a closed vessel in which water is heated under pressure
- Monotube steam generator
- Supercritical steam generator or Benson boiler, a high-pressure steam generator that operates in the supercritical pressure regime, such that no boiling takes place within it.
- Steam generator (auxiliary boiler), a steam-powered boiler used on ships to produce a low-pressure steam, heated by a high-pressure steam supply rather than a flame.
- Steam generator (boiler), an oil- or gas-fired boiler, based on a low-water content monotube coil.
- Steam generator (nuclear power), a heat exchanger in a pressurized water nuclear reactor
- Steam generator (railroad), a device used in trains to provide heat to passenger cars
A steam generator, in the sense of an auxiliary boiler on a ship, is a form of boiler. It uses high-pressure superheated steam from the main steam supply used for propulsion, and uses this to generate low pressure saturated steam. This is then used to power auxiliary steam engines around the ship such as winches or pumps, or to supply any steam requirement on the ship that does not require high superheating, such as boiler feedwater and freshwater evaporators.
A steam generator is a form of low water-content boiler, similar to a flash steam boiler. The usual construction is as a spiral coil of water-tube, arranged as a single, or monotube, coil. Circulation is once-through and pumped under pressure, as a forced-circulation boiler. The narrow-tube construction, without any large-diameter drums or tanks, means that they are safe from the effects of explosion, even if worked at high pressures. The pump flowrate is adjustable, according to the quantity of steam required at that time. The burner output is throttled to maintain a constant working temperature. The burner output required varies according to the quantity of water being evaporated: this can be either adjusted by open-loop control according to the pump throughput, or by a closed-loop control to maintain the measured temperature.
They are used as auxiliary boilers on ships.
Usage examples of "steam generator".
So the idiot walked down to the steam generator and opened an inspection valve, with his pots under it!
This was located in the engine room, aft of the compartment that held the reactor and the heat exchanger/steam generator, the latter placed right at the submarine’.
He studied the interior for a brief instant and then pulled out a length of high-pressure replacement pipe for the steam generator.
They were running at medium speed, driving water out of the reactor vessel into the steam generator.
It had been run at nearly fifty-eight thousand - once, on builder's trials, resulting in minor damage to the steam generator's internal plumbing - and the maximum useful power was fifty-four-point-nine-six.
Get the location and range of the emplacement, look for the steam generator.
Now he was just waiting for the chance to complete his spinning open the main engine throttles, which he couldn't do until the steam generator automatic level controls allowed him to.
Some had boxy collections of fuel cells running their lengths, and one buggy had a steam generator and a solar mirror atop it just behind the cockpit.
Should he be unable to recharge its capacitors otherwise, he carried a steam generator which could burn nearly anything.