V.P. Kravchenko, A.O. Overchenko, M.M. Khyschenko, M.P. Galatsan, B.A. Leus
Odesa Polytechnic National University, 1, Shevchenko Ave, Odesa, 65044, Ukraine
DOI: doi.org/10.31717/2311-8253.24.3.1
Abstract
Taking into account the prospect of wide use of nuclear power plants for heat supply, the maximum possible productivity of the nuclear power unit with the K-1000-5.8/25-1 turbine in terms of heat release in heating mode was analyzed. The limitation of the amount of steam diverted for heating is determined by the minimum possible flow of steam into the condenser to ensure the ventilation mode of the low-pressure cylinder (LPC). Otherwise, the CNT will consume power for its rotation. The minimum flow of steam to the condenser for the ventilation mode is determined at the level of 10% of the flow of steam to the turbine. The paper determined that under these conditions the power of the heating unit of a turbine K-1000-5.8/25-1 is 900 MW. At the same time, the electric power of the turbo plant decreases from 1032 MW to 684 MW. It is shown that the exergetic efficiency of the nuclear power plant increases with the increase of the released thermal power. The increase of heat release from the NPP on economic indicators is
analyzed. It was determined that with an increase in the amount of released heat, the total revenue of the NPP increases.
Keywords: heating from nuclear power plants, thermodynamic and economic efficiency.
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