Vodice The Imperial Park Hotel 26 - 28 March 2025
27 th International Conference on Heating, Cooling and Air-conditioning
ABSTRACT
PAPER
dr. sc. Dušan STRUŠNIK Energetika Ljubljana d.o.o. TE-TOL Unit Toplarniška 19 SI-1000 Ljubljana Slovenia e-mail: dusan.strusnik@gmail.com
MP4
PRESENTATION VIDEO
Today he works at the TE-TOL Unit (Ljubljana Thermal Power and District Heating Plant) of the Slovenian energy and district heating company Energetika Ljubljana. He is also an external associate - an assistant professor at the Faculty of Energy Technology of the University of Maribor (Slovenia).
prof. dr. Jurij AVSEC University of Maribor, Faculty for Energy Technology, Krško, Slovenia
MEASUREMENT OF DEVIATIONS IN THE CHARACTERISTIC POINTS OF THE TURBINE CONDENSATE PUMP AFTER TEN YEARS OPERATION
The primary task of the turbine condensate pump is to pump condensate from the condenser into the boiler feedwater system. The condensate from the condensate pump is also used as cool- ing water for auxiliary cooling systems, such as the ejector system cooling, steam dump device cooling, etc. The condensate pump must operate within its characteristic properties to ensure the appropriate flow and pressure required for the un- interrupted operation of the cooling systems. To determine the reliability of the condensate pump after ten years of operation, reliability mea- surements were performed. The reliability of the condensate pump was assessed by comparing the characteristic points provided by the manu- facturer with the measured characteristic points.
These measurements of the pump’s characteristic points were conducted under both atmospheric and vacuum conditions in the turbine condenser. The results indicate that the deviations between the characteristic properties of the condensate pump, as specified by the manufacturer and those measured under atmospheric and vacuum conditions in the condenser, are negligibly small. Minor deviations due to changes in pressure con- ditions in the condenser are reflected in the net positive suction head (NPSH) of the condensate pump. Measurements show that operation with an NPSH greater than 1.5 m is safe. The remaining deviations in the characteristic properties of the condensate pump are within acceptable limits, amounting to up to 3%.
28
3rd Thematic Section - ENERGY EFFICIENCY AND RENEWABLES
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