Pressure Of Steam In Condenser Is
Pressure Of Steam In Condenser Is. In divergent cones, the kinetic energy is partially converted into pressure energy. The condenser pressures considered range from 400 to 3000 kpa.
Determine a.) heat added, b.) wnet, c.) thermal efficiency. Another advantage of the condenser is that the steam condensed may be recovered to provide a source of pure feed water to the boiler and reduce the water softening capacity to a considerable extent. A steam condenser is a closed vessel in which steam is condensed by abstracting the heat by cooling it with water and where the pressure is maintained below atmospheric pressure.
This Steam Is In A Partially Condensed State (Point F), Typically Of A Quality Near 90%.
Usually up to four numbers of ejectors are used which can reduce the pressure in the condenser up to 0. In typical wet steam turbines, the exhausted steam condenses in the condenser, and it is at a pressure well below atmospheric (absolute pressure of 0.008 mpa, which corresponds to 41.5°c). Use of steam at a pressure between 200 psi and 300 psi as the high pressure fluid enables a singlestage air ejector to draw a vacuum of about 26 inches hg.
It Is Simple In Construction, Cheap, Highly Efficient And Don’t Have Any Moving Parts.
Normally, air ejectors consist of two suction stages. The first stage suction is located on top of the condenser, while the second stage suction comes from the diffuser of the first stage. The pressure below the atmospher ic is called vacuum.
The Efficiency Of The Steam Power Plant Is Increased By The Use Of A Condenser.
A steam 8.0 mpa and 485 degrees celsius enter the turbine and expand at condenser pressure of 0.006 mpa for cycle and 1kg of steam. Condition and maximum turbine load, the condenser pressure should not exceed 4 inches hg abs. In a steam power plant, the condenser pressure is 10 kpa.
Label The Points By Setting Point 1 At The Condenser Outlet, Point 2 At The Pump Outlet, Point 3 At The Boiler Outlet, And Point 4 At The Turbine Outlet.
And for the engine, determine the steam flow and the energy output of 40,000 kw, e.) wturbine, f.) energy chargable, g.) ideal heat rate. The turbine and pump isentropic efficiencies are both 85 %. So, at 1,000,000 lb/hr steam flow, a rise of 1 psia in the condenser backpressure equates to a loss of 36,300,000 btu/hr or 10.6 mw of work.
The Minimum Absolute Pressure (Also Called Ideal Pressure) At The Steam Inlet Of A Condenser Is The Pressure Corresponding To The Temperature Of The Condensed Steam.
The functions or needs of a steam condenser: Another advantage of the condenser is that the steam condensed may be recovered to provide a source of pure feed water to the boiler and reduce the water softening capacity to a considerable extent. A steam rankine cycle operates between the pressure limits of 2500 psia in the boiler and 1 psia in the condenser.
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