Assessment of Efficiency of Regenerative Heating System of Feed Water for High Temperature Turbine Plant on Decentralized Power Engineering Facilities

Ларионов, К. Б.; Gvozdjakov, D.V.; Zenkov, А. V.; Зайцев, В. Б.

doi:10.1051/epjconf/201611001034

Cited by 8 publications

(7 citation statements)

References 4 publications

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“…The condensation temperature tC LBS , which is determined from the calculation of the air condenser, calculates the pressure at the end of the expansion process into the low-pressure cylinder: The heat balance equation is compiled for the recycling system [7]. The heat balance determines the consumption of recycling:…”

Section: Matec Web Of Conferencesmentioning

confidence: 99%

Algorithm for calculation of a CCGT of a trinary type with an air condenser

et al. 2018

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Section: Matec Web Of Conferencesmentioning

confidence: 99%

Algorithm for calculation of a CCGT of a trinary type with an air condenser

et al. 2018

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“…But these substances are destroyed at temperatures above 400 С. Therefore, a CCGT of a trinary type was proposed on the basis of three cycles: higher -Brighton gas turbine cycle, average -Rankine cycle steam turbine and lower -ОRC [2][3][4][5][6]. The use of low-boiling substances (LBS) in ORC makes it possible to reliably remove heat in the AC at the temperature below 0 С [7], allows downsizing and installation costs of the turbine and condenser, and also makes it possible to significantly reduce water consumption for technological purposes.…”

Section: Matec Web Of Conferencesmentioning

confidence: 99%

Decision working medium for lower cycle CCGT trinary type

et al. 2017

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Abstract. The object of the study are low-boiling substances, which can be used as working fluid in the Organic Rankine cycle (ORC) combine cycle gas turbine (CCGT) trinary type. Purpose of research is search for substances with the best thermodynamic, thermophysical and ecological properties. The calculation algorithm represents a mathematical calculation of CCGT in which the lower cycle, operating on low-boiling fluid and utilizes low-potential heat, as an air-cooling device On the basis of available scientific and practical facts on the use of working fluids the organic Rankine cycle for analysis were selected ozone-safe refrigerant: butane, pentane, R236ea, R236fa, R123, R245ca, R245fа, R365mfc, RC318. For these substances were found and tabulated critical pressure and temperature, condensation pressure, density and dynamic viscosity at a given condensation temperature. Studies have shown that the highest thermal net efficiency is achieved when using natural Freon pentane and synthetic R365mfc. Net efficiency CCGT strongly depends on the condensation temperature of the substance. For example, when using pentane when the condensation temperature decreases on 10 С net efficiency increases about 0.71 %.

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“…The main ways of improving the steam turbine plant are: increase the initial parameters; reheating steam; regenerative heating of feed water [10]; lowering the temperature of heat removal in the condenser; improving the flow part of the turbine.…”

Section: Improving Cycle and Equipment Of The Steam Turbinementioning

confidence: 99%

Promising Direction of Perfection of the Utilization Combine Cycle Gas Turbine Units

et al. 2016

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Abstract. Issues of improving the efficiency of combined cycle gas turbines (CCGT) recovery type have been presented. Efficiency gas turbine plant reaches values of 45 % due to rise in temperature to a gas turbine to 1700 °C. Modern technologies for improving the cooling gas turbine components and reducing the excess air ratio leads to a further increase of the efficiency by 1-2 %. Based on research conducted at the Tomsk Polytechnic University, it shows that the CCGT efficiency can be increased by 2-3 % in the winter time due to the use of organic Rankine cycle, low-boiling substances, and air-cooled condensers (ACC). It is necessary to apply the waste heat recovery with condensation of water vapor from the flue gas, it will enhance the efficiency of the CCGT by 2-3 % to increase the efficiency of the heat recovery steam boiler (HRSB) to 10-12 %. Replacing electric pumps gas turbine engine (GTE) helps to reduce electricity consumption for auxiliary needs CCGT by 0.5-1.5 %. At the same time the heat of flue gas turbine engine may be useful used in HRSB, thus will increase the capacity and efficiency of the steam turbine.

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Assessment of Efficiency of Regenerative Heating System of Feed Water for High Temperature Turbine Plant on Decentralized Power Engineering Facilities

Cited by 8 publications

References 4 publications

Algorithm for calculation of a CCGT of a trinary type with an air condenser

Algorithm for calculation of a CCGT of a trinary type with an air condenser

Decision working medium for lower cycle CCGT trinary type

Promising Direction of Perfection of the Utilization Combine Cycle Gas Turbine Units

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