Abstract
The results of theoretical studies of the use of selective steam of various parameters in consumer installations
 are presented. The values of heat losses during the transportation of steam to the consumer are determined.
 Heat losses during transportation are insignificant and do not exceed 0.05%. A TH-diagram of the thermodynamic
 process of operation of selected steam during adiabatic expansion and condensation is presented. It is shown that
 the main share of the thermal energy of steam is determined by the process of its condensation (up to 90% of the
 initial heat content). To convert the thermal energy of the selected steam into mechanical energy during its adiabatic
 expansion in the drive turbines of the consumer, it is necessary to choose the steam of the highest pressure.
 This will allow saving up to 50% of heat compared to low pressure steam. An exergy analysis of the system for
 the use of selective steam prior to its condensation has been carried out. The degree of thermodynamic perfection
 of steam use in this area is 45%.
 
 The steam parameters for heat exchange units with condensation are determined by the temperature difference
 in the final section of the heat exchange path; otherwise, the initial steam parameters are practically
 indifferent to them. The main requirement for such installations is the presence of a steam trap in the condensate
 removal path and a reliable system for diagnosing its technical condition.
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More From: HERALD OF POLOTSK STATE UNIVERSITY. Series С FUNDAMENTAL SCIENCES
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