Abstract
The paper examines from the thermodynamic point of view operation of coal
fired power unit cooperating with the cryogenic oxygen unit, with a
particular emphasis on the characteristic performance parameters of the
oxygen unit. The relatively high purity technical oxygen produced in the
oxygen unit is then used as the oxidant in the fluidized bed boiler of the
modern coal fired power unit with electric power output of approximately
460 MW. The analyzed oxygen unit has a classical two-column structure with
an expansion turbine (turboexpander), which allows the use of relatively
low pressure initially compressed air. Multivariant calculations were
performed, the main result being the loss of power and efficiency of the
unit due to the need to ensure adequate driving power to the compressor
system of the oxygen generating plant.
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