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Название: Numerical Research of Steam and Gas Plant Efficiency of Triple Cycle for Extreme North Regions
Авторы: Galashov, Nikolay Nikitovich
Tsibulskii (Tsibulskiy), Svyatoslav Anatolievich
Matveev, Aleksandr Sergeevich
Masjuk, Vladimir
Ключевые слова: численные исследования; энергоэффективность; паротурбинные установки; парогазовые установки; математические модели; газовые установки
Дата публикации: 2016
Издатель: EDP Sciences
Библиографическое описание: Numerical Research of Steam and Gas Plant Efficiency of Triple Cycle for Extreme North Regions / N. N. Galashov [et al.] // European Physical Journal Web of Conferences (EPJ Web of Conferences). — 2016. — Vol. 110 : Thermophysical Basis of Energy Technologies : Proceedings of the Conference, October 13-15, 2015, Tomsk, Russia. — [01019, 5 p.].
Аннотация: The present work shows that temperature decrease of heat rejection in a cycle is necessary for energy efficiency of steam turbine plants. Minimum temperature of heat rejection at steam turbine plant work on water steam is 15°C. Steam turbine plant of triple cycle where lower cycle of steam turbine plant is organic Rankine cycle on low-boiling substance with heat rejection in air condenser, which safely allows rejecting heat at condensation temperatures below 0°C, has been offered. Mathematical model of steam and gas plant of triple cycle, which allows conducting complex researches with change of working body appearance and parameters defining thermodynamic efficiency of cycles, has been developed. On the basis of the model a program of parameters and index cycles design of steam and gas plants has been developed in a package of electron tables Excel. Numerical studies of models showed that energy efficiency of steam turbine plants of triple cycle strongly depend on low-boiling substance type in a lower cycle. Energy efficiency of steam and gas plants net 60% higher can be received for steam and gas plants on the basis of gas turbine plant NK-36ST on pentane and its condensation temperature below 0°C. It was stated that energy efficiency of steam and gas plants net linearly depends on condensation temperature of low-boiling substance type and temperature of gases leaving reco very boiler. Energy efficiency increases by 1% at 10% decrease of condensation temperature of pentane, and it increases by 0.88% at 15°C temperature decrease of gases leaving recovery boiler.
URI: http://earchive.tpu.ru/handle/11683/33356
Располагается в коллекциях:Материалы конференций

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