What is steam condenser in a turbine?
A steam condenser in a turbine is a heat exchanger that extracts the thermal energy from the exhaust steam used to power the turbine. The process involves converting the steam into water which helps to reduce the turbine's energy consumption. This condenser is typically placed at the outlet of a steam turbine. It consists of a shell where the cooler circulating water is pumped, tubes containing the steam, and one or two steam headers. A steam condenser is also used to reduce water consumption and to increase the efficiency of the turbine.
How are the steam outlet properties determined?
The steam outlet properties are determined by the energy, mass and entropy balance equations. These equations take into account the temperature, pressure, volumetric flow rate and mass flow rate of the steam, the specific enthalpy and entropy of the steam, and other thermodynamic properties of the steam. From these equations, the outlet properties of the steam can be calculated.
What happens to condensate in a steam heated converter?
Condensate in a steam heated converter typically flows from the steam jacket through a drain valve to a condensate receiver, where it is cooled or heated for reuse or disposal. The condensate can then be used for make-up water, as preheated water for a feedwater tank, or as cooling water. Once the condensate is drained from the system, it can then be reused in any number of ways, including as makeup water to a closed-loop boiler system, in a treatment plant as part of a cooling process, or in a heat exchange as preheat for another process.
How does a piston steam trap work?
A piston steam trap is a type of thermal mass steam trap that uses a movable disk, called a "piston," to open and close the trap. It works by allowing the steam to enter past the piston into the chamber. When the steam cools, the fluid condenses, the pressure to the chamber drops, and the piston is forced open. The condensed fluid is then discharged, while the steam is blocked from exiting with the piston still open. The pressure inside the chamber then builds and the piston is pushed back in, shutting off the steam until the process is repeated again.
What are the problems with a steam trap?
1. Fouling: Steam traps can become clogged with sediment and other contaminants from the steam. This can prevent the trap from working correctly and reduce its efficiency.
2. Control failure: Steam traps can fail to open or close when they should, resulting in steam escaping or condensate being unable to drain away. This can lead to system inefficiencies and even cause pressure and noise problems.
3. Corrosion: The traps can corrode due to the high temperatures and pressure of the steam, leading to leaks or failure.
4. Cavitation: Cavitation occurs when the pressure of the steam inside the trap is so low that it likely to cause the steam to condense. This can create a vacuum inside the trap which can cause it to be blocked or fail.
5. Wear and tear: Steam traps are subject to stresses from the hot and cold temperatures that steam contains as it passes through the trap. Over time this can lead to wear and tear, resulting in its failure.
What are the dangers of steam systems?
1. Risk of scalding: Steam systems can reach extremely high temperatures that can result in serious burns and scalding.
2. Risk of explosions: Poorly maintained steam systems can create pressure inside the pipes that can lead to explosions.
3. Corrosion: Steam systems often contain corrosive and caustic chemicals that can corrode pipes, leading to leaks and surges.
4. Loss of efficiency: Steam systems require proper maintenance in order to run efficiently. If a system is not properly maintained, it can lead to significant losses in energy costs.
5. Risk of fire: Steam systems often rely on hot surfaces, which can increase the risk of fire if they are not properly insulated.
What happens to latent heat when a steam trap fails?
When a steam trap fails, the latent heat is released into the atmosphere, rather than being used for heating or boiling applications. This wasted energy can cause problems with indoor air quality as well as wasted money from energy bills.
What are steam burns?
Steam burns are burns caused by contact with very hot steam. They range from minor to severe. The lack of visible heat when coming in contact with steam can make it an especially dangerous hazard. Treatment involves flushing with cool water, application of ointment to the affected area, and possibly medical attention depending on the severity of the burn.
What is the duty of a steam trap?
A steam trap is a type of valve designed specifically to regulate the flow of steam within a heating or cooling system. Its purpose is to remove condensate, air, and non-condensable gases from the system, thereby improving its efficiency and reducing energy costs. It also helps reduce corrosion of system components due to the presence of oxygen, water, and other corrosive elements.