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Increasing the Efficiency and Level of environmental Safety of Pro-environmental City Heat Supply Technologies by Low power Nuclear Plants

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World Journal of Nuclear Science and Technology 2024年第2期14卷 107-117页

作者： Vladimir Kravchenko Igor Kozlov Volodymyr Vashchenko Iryna Korduba Andrew Overchenko Serhii Tsybytovskyi Department of Nuclear power Plants Odesa Polytechnic National University Odesa Ukraine Interdepartmental Scientific Center for Fundamental Research on Energy and Ecology of the National Academy of Sciences of Ukraine &#8220Odesa Polytechnic&#8221 and Ministry of Ecology of Ukraine Odesa Ukraine Department of environmental Protection and Labor Protection Technologies Kyiv National University of Construction and Architecture Kyiv Ukraine

In connection with the current prospect of decarbonization of coal energy through the use of small nuclear power plants (SNPPs) at existing TPPs as heat sources for heat supply to municipal heating networks, there is a technological need to improve heat supply schemes to increase their environmental friendliness and efficiency. The paper proves the feasibility of using the heat-feeding mode of ASHPs for urban heat supply by heating the network water with steam taken from the turbine. The ratio of electric and thermal power of a “nuclear” combined heat and power plant is given. The advantage of using a heat pump, which provides twice as much electrical power with the same heat output, is established. Taking into account that heat in these modes is supplied with different potential, the energy efficiency was used to compare these options. To increase the heat supply capacity, a scheme with the use of a high-pressure heater in the backpressure mode and with the heating of network water with hot steam was proposed. Heat supply from ASHPs is efficient and environmentally friendly even in the case of significant remoteness of heat consumers.

关键词： Low-Capacity Nuclear power Plants environmental friendliness of the thermal power generation mode Heat generation Condensation mode Heat Supply

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