Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers
Hydrogen mixed natural gas for combustion can improve combustion characteristics and reduce carbon emission, which has important engineering application value. A casing swirl burner model is adopted to numerically simulate and research the natural gas hydrogen mixing technology for combustion in gas...
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MDPI AG
2021
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oai:doaj.org-article:4bc111c95081425a9369b2ff73fccad02021-11-11T15:43:52ZNumerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers10.3390/en142168831996-1073https://doaj.org/article/4bc111c95081425a9369b2ff73fccad02021-10-01T00:00:00Zhttps://www.mdpi.com/1996-1073/14/21/6883https://doaj.org/toc/1996-1073Hydrogen mixed natural gas for combustion can improve combustion characteristics and reduce carbon emission, which has important engineering application value. A casing swirl burner model is adopted to numerically simulate and research the natural gas hydrogen mixing technology for combustion in gas boilers in this paper. Under the condition of conventional air atmosphere and constant air excess coefficient, the six working conditions for hydrogen mixing proportion into natural gas are designed to explore the combustion characteristics and the laws of pollution emissions. The temperature distributions, composition, and emission of combustion flue gas under various working conditions are analyzed and compared. Further investigation is also conducted for the variation laws of NOx and soot generation. The results show that when the boiler heating power is constant, hydrogen mixing will increase the combustion temperature, accelerate the combustion rate, reduce flue gas and CO<sub>2</sub> emission, increase the generation of water vapor, and inhibit the generation of NOx and soot. Under the premise of meeting the fuel interchangeability, it is concluded that the optimal hydrogen mixing volume fraction of gas boilers is 24.7%.Yue XinKe WangYindi ZhangFanjin ZengXiang HeShadrack Adjei TakyiPaitoon TontiwachwuthikulMDPI AGarticlehydrogen-blended combustionnumerical simulationcombustion characteristicspollutant generationflue gas analysisTechnologyTENEnergies, Vol 14, Iss 6883, p 6883 (2021) |
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DOAJ |
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DOAJ |
| language |
EN |
| topic |
hydrogen-blended combustion numerical simulation combustion characteristics pollutant generation flue gas analysis Technology T |
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hydrogen-blended combustion numerical simulation combustion characteristics pollutant generation flue gas analysis Technology T Yue Xin Ke Wang Yindi Zhang Fanjin Zeng Xiang He Shadrack Adjei Takyi Paitoon Tontiwachwuthikul Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers |
| description |
Hydrogen mixed natural gas for combustion can improve combustion characteristics and reduce carbon emission, which has important engineering application value. A casing swirl burner model is adopted to numerically simulate and research the natural gas hydrogen mixing technology for combustion in gas boilers in this paper. Under the condition of conventional air atmosphere and constant air excess coefficient, the six working conditions for hydrogen mixing proportion into natural gas are designed to explore the combustion characteristics and the laws of pollution emissions. The temperature distributions, composition, and emission of combustion flue gas under various working conditions are analyzed and compared. Further investigation is also conducted for the variation laws of NOx and soot generation. The results show that when the boiler heating power is constant, hydrogen mixing will increase the combustion temperature, accelerate the combustion rate, reduce flue gas and CO<sub>2</sub> emission, increase the generation of water vapor, and inhibit the generation of NOx and soot. Under the premise of meeting the fuel interchangeability, it is concluded that the optimal hydrogen mixing volume fraction of gas boilers is 24.7%. |
| format |
article |
| author |
Yue Xin Ke Wang Yindi Zhang Fanjin Zeng Xiang He Shadrack Adjei Takyi Paitoon Tontiwachwuthikul |
| author_facet |
Yue Xin Ke Wang Yindi Zhang Fanjin Zeng Xiang He Shadrack Adjei Takyi Paitoon Tontiwachwuthikul |
| author_sort |
Yue Xin |
| title |
Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers |
| title_short |
Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers |
| title_full |
Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers |
| title_fullStr |
Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers |
| title_full_unstemmed |
Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers |
| title_sort |
numerical simulation of combustion of natural gas mixed with hydrogen in gas boilers |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/4bc111c95081425a9369b2ff73fccad0 |
| work_keys_str_mv |
AT yuexin numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers AT kewang numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers AT yindizhang numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers AT fanjinzeng numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers AT xianghe numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers AT shadrackadjeitakyi numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers AT paitoontontiwachwuthikul numericalsimulationofcombustionofnaturalgasmixedwithhydrogeningasboilers |
| _version_ |
1718434081638711296 |