| A new approach of cascade utilization of the chemical energy of fuel |
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| 作者姓名： | HAN Wei IN Hongguang LIN Rumou |
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| 作者单位： | 1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China; 2. Graduate School of the Chinese Academy of Sciences, Beijing 100080, China |
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| 摘 要： | The indirect release of chemical energy of fuel is investigated, and a new mechanism is proposed to identify the cascade utilization of chemical energy of fuel more clearly. Based on the concept of energy level, the internal phenomenon of the indirect chemical energy release is disclosed, and the equations of energy level describing the utilization of chemical energy and thermal energy during the indirect chemical energy release process are obtained. From theoretical analysis, we find that the superiority of the indirect chemical energy release of fuel comes from the cascade utilization of the fuel's chemical energy. Moreover, the cascade utilization of chemical energy is verified by the investigation of CRGT (chemically recuperated gas turbine). As a result, the thermal exergy obtained from the chemical energy release of fuel increases by 2%?3%. The results obtained here may help a deeper understanding of indirect chemical energy release of fuel and provide a theoretical basis for the synthesis of innovative energy systems.
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| 关 键 词： | chemically recuperated gas turbine methane/steam reforming chemical energy level cascade utilization |
A new approach of cascade utilization of the chemical energy of fuel |
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| HAN Wei,IN Hongguang,LIN Rumou.A new approach of cascade utilization of the chemical energy of fuel[J].Progress in Natural Science,2006,16(5):518-523. |
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| Authors: | HAN Wei JIN Hongguang LIN Rumou |
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| Institution: | 1. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China; Graduate School of the Chinese Academy of Sciences, Beijing 100080, China
2. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100080, China |
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| Abstract: | The indirect release of chemical energy of fuel is investigated, and a new mechanism is proposed to identify the cascade utilization of chemical energy of fuel more clearly. Based on the concept of energy level, the internal phenomenon of the indirect chemical energy release is disclosed, and the equations of energy level describing the utilization of chemical energy and thermal energy during the indirect chemical energy release process are obtained. From theoretical analysis, we find that the superiority of the indirect chemical energy release of fuel comes from the cascade utilization of the fuel's chemical energy. Moreover, the cascade utilization of chemical energy is verified by the investigation of CRGT (chemically recuperated gas turbine). As a result, the thermal exergy obtained from the chemical energy release of fuel increases by 2%?3%. The results obtained here may help a deeper understanding of indirect chemical energy release of fuel and provide a theoretical basis for the synthesis of innovative energy systems. |
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| Keywords: | chemically recuperated gas turbine methane/steam reforming chemical energy level cascade utilization |
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