Home – Home – Jornals – Thermophysics and Aeromechanics 2020 number 5

The energy security of Russia is at threat due to recent trends of dependency of national power industry on imported technologies, equipment, spare parts and materials. The next challenge is a tendency of more strict environmental standards and restrictions for power generation equipment. The paper considers one option to meet those challenges - using technologies based on compressorless combined cycle plant with complete capturing of СО₂ in liquid state (developed by JIHT in cooperation with NPO Almaz). This technology offers efficient production of heat and power from hydrocarbon fuel with a minimal environmental impact. This plant can be incorporated into a power-engineering complex with chemical products outcome. According to the developed scheme, the hydrocarbon fuel is burnt in a mixture of oxygen, provided by an air-separation setup (or another source), steam and carbon dioxide. The components are compressed in the liquid phase. The heat from exhaust gas is recuperated in a developed heat recovery system. The steam condensation takes place, and the heat of condensation is utilized for district water heating in water utility grids and for capturing of СО₂ in liquid phase. Through varying of proportions between Н₂О and СО₂ inputs, the proportions in generation of electric power and heat can be varied in a wide range. Our estimates demonstrate that this new plant has a thermal efficiency higher than for the best CCGT plants and close to the efficiency for the best worldwide analogs.