Hydrogen–air energy storage gas-turbine system
| Autor: | A. I. Schastlivtsev, O. V. Nazarova |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Engineering
Energy recovery Waste management Electrolysis of water Hydrogen business.industry 020209 energy Compressed air Energy Engineering and Power Technology chemistry.chemical_element 02 engineering and technology Combustion 01 natural sciences Energy storage 010305 fluids & plasmas Renewable energy Nuclear Energy and Engineering Volume (thermodynamics) chemistry 0103 physical sciences 0202 electrical engineering electronic engineering information engineering business |
| Zdroj: | Thermal Engineering. 63:107-113 |
| ISSN: | 1555-6301 0040-6015 |
| DOI: | 10.1134/s0040601516010109 |
| Popis: | A hydrogen–air energy storage gas-turbine unit is considered that can be used in both nuclear and centralized power industries. However, it is the most promising when used for power-generating plants based on renewable energy sources (RES). The basic feature of the energy storage system in question is combination of storing the energy in compressed air and hydrogen and oxygen produced by the water electrolysis. Such a process makes the energy storage more flexible, in particular, when applied to RES-based power-generating plants whose generation of power may considerably vary during the course of a day, and also reduces the specific cost of the system by decreasing the required volume of the reservoir. This will allow construction of such systems in any areas independent of the local topography in contrast to the compressed-air energy storage gas-turbine plants, which require large-sized underground reservoirs. It should be noted that, during the energy recovery, the air that arrives from the reservoir is heated by combustion of hydrogen in oxygen, which results in the gas-turbine exhaust gases practically free of substances hazardous to the health and the environment. The results of analysis of a hydrogen–air energy storage gas-turbine system are presented. Its layout and the principle of its operation are described and the basic parameters are computed. The units of the system are analyzed and their costs are assessed; the recovery factor is estimated at more than 60%. According to the obtained results, almost all main components of the hydrogen–air energy storage gas-turbine system are well known at present; therefore, no considerable RD a difficulty in manufacturing it is the necessity of ensuring the combustion of hydrogen in oxygen as complete as possible and preventing formation of nitric oxides. |
| Databáze: | OpenAIRE |
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