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Małe turbiny parowe dla energetyki rozproszonej– uwarunkowania techniczno-ekonomiczne

Kryłłowicz W., Kantyka K.

Rynek Energii

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2017

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Nr 6

41--46

PL

Artykuł dotyczy zagadnienia możliwości i opłacalności produkcji w kraju małych turbin dla energetyki rozproszonej. Opisane są dwie zrealizowane konstrukcje małych turbin parowych o mocach 50 i 165 kW (odpowiednio turbina kondensacyjna i turbina przeciwprężna). Ponadto omówiono wyniki badań prowadzonych na stoisku turbiny modelowej TM1 -3, a dotyczących charakterystyk zewnętrznych stopni modelowych małych turbin akcyjnych dla różnych wariantów konstrukcyjnych: koła wirnikowe z bandażami lub bez. Przeprowadzono uproszczoną analizę kosztów produkcji turbin w zależności od mocy na wale (w zakresie do 250 kW). Poruszono zagadnienie cen i dostępności armatury dla turbin małej mocy.

EN

A possibility and cost-effectiveness of producing small turbines for distributed power generation is discussed. Designs of two small steam turbines with power ratings of 50 and 165 kW (a condensing turbine and a back pressure turbine, respectively) are described. In addition, the results of experimental investigations conducted on the TM1-3 model turbine stand, concerning the external characteristics of the model stages of small turbines for different design variants impellers with or without bandages are presented. A simplified analysis of turbine production costs depending on the shaft power (up to 250 kW) has been conducted. An issue of prices and availability of control valves for low power turbines is discussed.

2

Design analysis of ORC micro-turbines making use of thermal energy of oceans

Piwowarski M.

Polish Maritime Research

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2013

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nr 2

48--60

EN

The article presents the results of the analysis of energy conversion cycles making use of thermal energy of oceans. The objects of analysis were two cases of closed Organic Rankine Cycle (ORC) power plants, which were: the cycle in which the vapour of the working medium was produced by warm oceanic water in the circum-equatorial zone, and the so-called “arctic” cycle in which this vapour was produced by non-frozen water in the circumpolar zone. Between ten and twenty low-boiling media were examined for which operating parameters were optimised to obtain the highest cycle efficiency. A preliminary design of an ORC turbine which was obtained by optimising basic design parameters is included. It has been proved that realisation of the Ocean Thermal Energy Conversion (OTEC) cycle is possible both in the warm and permanently frozen regions. The results of the calculations have also revealed that the efficiency of the OTEC cycle is higher in the circumpolar zone. Selecting a low-boiling medium and designing a highly efficient turbine operating in both abovementioned regimes is technically realisable.

3

Design analysis of turbines for co-generating micro-power plant working in accordance with organic Rankine’s cycle

Mikielewicz J., Piwowarski M., Kosowski K.

Polish Maritime Research

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2009

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S 1

34-38

EN

This paper presents results of a design analysis of turbines for co-generating micro-power plant working in accordance with organic Rankine’s cycle and using biofuel. The heat power range from 25 kW to 100 kW with corresponding available electric power from 2kW to 12kW, was considered. Designs of axial-flow turbines (single-stage and multi-stage ones, also those partially fed), radial-flow and axial-radial -flow ones, were analyzed. Particular variants of the solutions were compared to each other.