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19 results on '"Deng, Guangyi"'

16. Performance optimization of adiabatic compressed air energy storage with ejector technology

Author

Fan Yongchun, Guo Zuogang, Deng Guangyi, and Guangming Chen

Subjects
Engineering, Compressed air energy storage, business.industry, 020209 energy, Mass flow, Nuclear engineering, Compressed air, Energy conversion efficiency, Electrical engineering, Energy Engineering and Power Technology, 02 engineering and technology, Injector, Turbine, Industrial and Manufacturing Engineering, law.invention, 020401 chemical engineering, law, 0202 electrical engineering, electronic engineering, information engineering, Power output, 0204 chemical engineering, business, Adiabatic process
Abstract

In this paper, the performances of two adiabatic compressed air energy storage systems were determined. In system 1#, compressed air was reduced directly from 6.40 MPa to 2.50 MPa. In system 2#, compressed air was first reduced to 5.00 MPa and was later adjusted to 2.50 MPa by an ejector under an ejecting coefficient of 0.45. The mass flow of turbine 1# increased by 45%, and its power output capacity increased from 3.80 MW to 5.51 MW. The energy conversion efficiency of system 2# increased to 65.36% from 61.95% for system 1#. The application of the ejector improved the efficiency by 3.41%.

Published
2016

19. H2 rich gas production via pressurized fluidized bed gasification of sawdust with in situ CO2 capture.

Author

Han, Long, Wang, Qinhui, Luo, Zhongyang, Rong, Nai, and Deng, Guangyi

Subjects
*HYDROGEN production, *ENERGY conversion, *COLD gases, *FLUIDIZED bed reactors, *BIOMASS gasification, *SORPTION, *CARBON sequestration, *LIME (Minerals), *PRESSURE, *WOOD waste
Abstract

Highlights: [•] A pressurized fluidized bed reactor was designed and constructed for gasification tests. [•] CaO sorption enhanced gasification of sawdust was investigated under pressurized conditions. [•] H2 production was promoted with the increase in gasification pressure, CaO/C, H2O/C and T. [•] Pressurized operation promoted gasification reactions and enhanced CaO carbonation. [•] Pressurized operation increased the carbon conversion and cold gas efficiency of gasification. [ABSTRACT FROM AUTHOR]

Published
2013
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