Comparative analysis on heat supply cost of doubleextraction controlled steam turbine

Huadian Technology ›› 2011, Vol. 33 ›› Issue (7): 7-9.

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Comparative analysis on heat supply cost of doubleextraction controlled steam turbine

LIU Yongjian

Huadian Tengzhou Xinyuan Thermal Power Corporation Limited, Zaozhuang 277500, China

Received:1900-01-01 Revised:1900-01-01 Online:2011-07-25 Published:2011-07-25

Abstract

Abstract: According to the principle and characteristics of steam turbine doing work, the operation costs of two stage steam extractions of double extraction heat supply unit were comparatively analyzed; and some typical conditions were calculated. The calculated results show that the economic efficiency of the lowerstage extraction heat supply is not always better than that of higherstage extraction. The variation law of the extraction cost and its influencing factors were summarized; and effective calculation method of fuel cost suitable to the production field was put forward.

Key words: double extraction for heat supply, cost, comparative analysis, throttle loss, calculation

LIU Yongjian. Comparative analysis on heat supply cost of doubleextraction controlled steam turbine[J]. Huadian Technology, 2011, 33(7): 7-9.

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Comparative analysis on heat supply cost of doubleextraction controlled steam turbine

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