TECHNO-ECONOMIC ANALYSIS OF THE RECONSTRUCTION OF CENTRAL HEATING SYSTEM IN THERMAL POWER PLANT BITOLA

  • Vladimir Mijakovski University “St. Kliment Ohridski”, Faculty of Technical Sciences, Makedonska falanga 33, Bitola, Republic of Macedonia

Sažetak


With the latest modernization and revitalization of blocks in Thermal Power Plant (TPP) Bitola (2010-2012), apart from increasing the power of each unit from 225 to 234,3 MWel, new regulating valves were installed in the section between Medium Pressure Turbine (MPH) and Low Pressure Turbine (LPT) enabling subtraction of steam for the purposes of district heating of Bitola. This also creates opportunity to connect power plant’s own central heating system, with installed heat capacity of approximately 26 MWh, to this heat source. This heating system is in operation for almost 35 years and the need for its revitalization and reconstruction, techno-economic analysis, investment costs, economic viability and return on investment period for the reconstruction are presented in this paper.

Reference

Basic design (mechanical design) for hot water station with power of 200 MWh and its connection to the system of TPP Bitola – phase I, Energo system, Skopje, Macedonia, 2014

Basic design (mechanical design) for hot water station with power of 200 MWh and its connection to the system of TPP Bitola – phase II, Energo system, Skopje, Macedonia, 2014.

Mijakovski V., Angelevski Z., Dimitrieska C., Feasibility study for reconstruction and revitalization of central heating system for buildings in REK Bitola, Faculty of technical sciences – Bitola, Macedonia, 2016.

Walski T., Sharp W., Shields D., Predicting internal roughness in water mains - report, US army engineer waterways experiment station, Vicksburg, USA, 1988.

Kim I.S., Van der Helm M., Ballinger R.G., Flow induced material degradation in power plant secondary systems – a review, Journal of the Korean nuclear society, vol. 30, No. 2, pp.148-163, 1998.

Techno – economic study for selection and concept of central district heating system for the municipalities of Bitola, Novaci and Mogila based on heat energy from REK Bitola, EKONERG -Institut za energetiku i zaštitu okoliša, Zagreb, Hrvatska, 2012.

ASHRAE Handbook – HVAC systems and equipment, American Society of Heat, Refrigerating and Air-Conditioning Engineers, Atlanta, USA, 2016.

ASHRAE Handbook – HVAC applications, American Society of Heat, Refrigerating and Air-Conditioning Engineers, Atlanta, USA, 2015.

Hydraulic regulators for temperature, flow and pressure - catalogue, Danfoss, Denmark, 2014.

Catalogues and software for selection of pumps GRUNDFOS, Denmark.

Catalogues of the plate heat exchangers producer FUNKE, Germany.

Lisyansky A.S., Technical offer for arranging the district heating steam extractions at turbine plants K-235-130-3M, Units No 2 and No 3 "Bitola" power station, Macedonia, Sankt-Petersburg, OJSC "POWER MA-CHINES", Russia, 2011.

Energy regulatory commission of the Republic of Macedonia website: http://www.erc.org.mk/pages_en.aspx?id=158, accessed on 08.10.2016

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2017/08/27
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