南方能源建设 (May 2023)
Design of Gas Turbine Pressure Regulation Station Under the Condition of Mixed Hydrogen Gas
Abstract
[Introduction] With the development of "carbon peak and neutrality" goals, the application of photovoltaic and wind power for hydrogen gas production is becoming a hot and front direction. In the hydrogen gas industry, the gas turbine fired with mixed hydrogen gas is the final step to transfer hydrogen into electric power. The pressure regulation station, located between the pipeline network and gas turbine front module, is mainly to regulate the gas turbine fuel at the required temperature and pressure. With the use of mixed hydrogen gas as fuel for gas turbine, it is necessary to study the system configuration of pressure regulation station under new condition, which will provide a practicable solution for the future gas turbine fired with mixed hydrogen gas. [Method] The fuel quantity is given for the F class gas turbine fired with mixture of natural gas and hydrogen gas after the simulation calculation with GT Pro software. The recommended position of mixture tank is also given after consideration of the requirements on the temperature and pressure of F class gas turbine front module. And the material selection of pipe and diameter is presented and the relative items to be focused for the selection of valves is also presented. [Result] The recommended position of mixture tank is given under the condition of gas turbine fired with mixed hydrogen gas. And the material selection of pipe and diameter is presented and the relative items to be focused for the selection of valves is also presented. [Conclusion] For the gas turbine fire with mixed hydrogen gas, special attention shall be paid to the anti-corrosion and anti-explosion due to the big difference of physical properties between the methane (which is the main factor of nature gas) and hydrogen gas. The mixture tank arranged before the control valves of pressure regulation station will be conducive to providing the fuel at the required temperature and pressure for the gas turbine front module. The suitable dimension and material will be selected for the pipe and valves downstream the mixture tank based on the physical properties of mixed gas.
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