一种可容纳储存和运输压缩天然气(CNG)的全长55英里大口径管汇的船运系统，可望作为解决规划中的美国未来天然气供应短缺问题的一个方案而被采纳。拥有船舶设计信用证的美国海上能源运输公司(EnerSea Transport LLC)，已经同意出资对整...一种可容纳储存和运输压缩天然气(CNG)的全长55英里大口径管汇的船运系统，可望作为解决规划中的美国未来天然气供应短缺问题的一个方案而被采纳。拥有船舶设计信用证的美国海上能源运输公司(EnerSea Transport LLC)，已经同意出资对整体化天然气生产、储存和短程穿梭运输(GPSS)系统加以研究，以便将其应用于美国墨西哥湾的超深水。展开更多
Considering the essential and influential role of centrifugal compressors in a wide range of industries makes most of engineers research and study on design and optimization of centrifugal compressors. Centrifugal com...Considering the essential and influential role of centrifugal compressors in a wide range of industries makes most of engineers research and study on design and optimization of centrifugal compressors. Centrifugal compressors are the key to part ofoil, gas and petrochemical industries as well as gas pipeline transports. Since complete 3D design of the compressor consumes a considerable amount of time, most of active companies in the field, are profoundly interested in obtaining a design outline before taking any further steps in designing the entire machine. In this paper, a numerical algorithm, named ACDA （adapted compressor design algorithm） for fast and accurate preliminary design of centrifugal compressor is presented. The design procedure is obtained under real gas behavior, using an appropriate equation of state. Starting from impeller inlet, the procedure is continued on by resulting in numerical calculation for other sections including impeller exit, volute and exit diffuser. Clearly, in any step suitable correction factors are employed in order to conclude in precise numerical results. Finally, the achieved design result is compared with available reference data.展开更多
文摘一种可容纳储存和运输压缩天然气(CNG)的全长55英里大口径管汇的船运系统，可望作为解决规划中的美国未来天然气供应短缺问题的一个方案而被采纳。拥有船舶设计信用证的美国海上能源运输公司(EnerSea Transport LLC)，已经同意出资对整体化天然气生产、储存和短程穿梭运输(GPSS)系统加以研究，以便将其应用于美国墨西哥湾的超深水。
文摘Considering the essential and influential role of centrifugal compressors in a wide range of industries makes most of engineers research and study on design and optimization of centrifugal compressors. Centrifugal compressors are the key to part ofoil, gas and petrochemical industries as well as gas pipeline transports. Since complete 3D design of the compressor consumes a considerable amount of time, most of active companies in the field, are profoundly interested in obtaining a design outline before taking any further steps in designing the entire machine. In this paper, a numerical algorithm, named ACDA （adapted compressor design algorithm） for fast and accurate preliminary design of centrifugal compressor is presented. The design procedure is obtained under real gas behavior, using an appropriate equation of state. Starting from impeller inlet, the procedure is continued on by resulting in numerical calculation for other sections including impeller exit, volute and exit diffuser. Clearly, in any step suitable correction factors are employed in order to conclude in precise numerical results. Finally, the achieved design result is compared with available reference data.
