N2 - Energy efficiency improvement and ecological safety of heat power plants are urgent problems, which require scientifically grounded approaches and solutions. These problems can be solved partly within the presented heat-and-power cycles by including contact energy exchange equipment in the circuits of existing installations. A significant positive effectis obtained in the contact energy exchange installations, such as gas-steam installation ‘Aquarius’ and the contact hydrogen heat generator that also can use hydrogen as a fuel. In these plants, the efficiency increases approximately by 10–12% in comparison with traditional installations, and the concentration of toxic substances, such as nitrogen oxides and carbon monoxide in flue gas can be reduced to 30 mg/m3and to 5 mg/m3, respectively. Moreover, the plants additionally ‘generate’ the clean water, which can be used for technical purposes. L1 - http://www.czasopisma.pan.pl/Content/105656/PDF/08_paper.pdf L2 - http://www.czasopisma.pan.pl/Content/105656 PY - 2017 IS - No 4 EP - 137 DO - 10.1515/aoter-2017-0028 KW - thermal efficiency KW - heat generator KW - energy consumption KW - contact hydrogen KW - contact energy exchange A1 - Varlamov, Gennadii Borysovich A1 - Romanova, Kateryna Alexandrovna A1 - Nazarova, Iryna A1 - Daschenko, Olga A1 - Kapustiansky, Andry PB - The Committee of Thermodynamics and Combustion of the Polish Academy of Sciences and The Institute of Fluid-Flow Machinery Polish Academy of Sciences DA - 2017 T1 - Improvement of Energy Efficiency and Environmental Safety of Thermal Energy Through the Implementation of Contact Energy Exchange Processes SP - 127 UR - http://www.czasopisma.pan.pl/dlibra/publication/edition/105656 T2 - Archives of Thermodynamics