Aerodynamic performance analysis of partial admission dual row control stage at different working conditions

Song, Liming; Li, Jun; Wen, Kesong

doi:10.1007/s12206-015-1219-2

Cited by 6 publications

(1 citation statement)

References 11 publications

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“…Initially, studies concentrated on the fundamental characteristics and flow loss processes of partial admission turbines [4,5]. The flow channel structure [6,7], nozzle arrangement [8,9], and blade parameters [10,11] were determined to be the key elements impacting the performance of partial admission turbines. Researchers generally concurred that, in terms of flow channel structure, reducing the axial clearance between the nozzle and rotor within a suitable range can result in greater efficiency [12,13] and with decreasing mass flow rate, the efficiency and optimum speed ratio decline.…”

Section: Introductionmentioning

confidence: 99%

Compressed air energy storage system: Effect of variable relative stator installation angle on nozzle governing turbine performance

Guan,

Li,

Zhu

et al. 2024

J. Phys.: Conf. Ser.

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The air storage pressure of compressed air energy storage system gradually decreases during the process of energy release, and a reasonable air distribution method for the turbine is required to make the turbine work efficiently in this process. In this paper, based on the single nozzle governing method, the effect of the variation of the full circumferential relative stator installation angle on the system performance improvement under the rated output work condition is investigated. It is shown that the specific work of the variable relative stator installation angle can be improved by up to 6.3 % relative to the design stator installation angle and up to 15.7 % relative to the throttle governing method under the base pressure of 10.0 MPa. With the same absence of throttling losses, the specific work of 3-nozzle inlets method is higher than that of 4-nozzle inlets method, and the turbine internal losses are reduced by 10.6 %. This study provides a theoretical basis for the design, optimization and operation control of nozzle governing turbines.

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