The vacuum pumping system often consists of two or three mechanical pumps, which lower the pressure to about 0.1 atmosphere, and four or five stage steam ejectors, which bring the pressure to under 1 torr, or 0.0013 atmosphere.
June 13 , 1854London, England February 11 , 1931Kingston, Jamaica Sir Charles Algernon Parsons, (born June 13 , 1854 London died Feb. 11, 1931, Kingston, Jamaica) British engineer whose invention of a multi-stage steam turbine revolutionized marine propulsion.
Heat exchangers and a five-stage steam turbine are arranged.
The system has a single inter-stage steam reheat, a four-stage low pressure regeneration and a three-stage high pressure regeneration, plus a steam desuperheater.
To optimize the model, five GRS configurations were investigated: one-stage steam ejector, two-stage steam ejector, one-stage liquid ring vacuum pump (LRVP), two-stage LRVP, and hybrid system (ejector plus LRVP).
The results revealed that, high-stage steam substitute scheme of flue gas heat recovery in power plant can obtain higher energy-saving effects than that of low-stage steam substitute scheme.
Using two separators leads to the use of a two-stage steam turbine, whereby one stage operates at high pressure and the other at low pressure.
The problem of modeling and control of a three-stage steam reheating process in a steam power plant is considered in this paper.
An experimental refrigeration system based on a two-stage steam ejector was set-up in the Thermodynamics and Heat Transfer Laboratory of our Department.
The components having major breakdowns for fracture, an average of 75%, are the blades of the Low Pressure (LP) stage steam turbine.
A complete coupled simulation of the convection chamber and tubes with dual stage steam feed mixing of an industrial ethylene cracking furnace has been carried out with the computational fluid dynamics (CFD) method for the first time.
