Energy Consumption of Turbine Unit with Varying Exhaust Pressure under Off-Designed Conditions

Abstract:

The exhaust pressure affects the economic performance of the whole power unit greatly. Based on the theory of energy specific fuel consumption (ESFC), the changing principle of energy consumption in a power unit was studied. In the turbine unit, the energy-consumption caused by topological factors was also discussed with different exhaust pressure. The results showed that the changing of exhaust pressure makes great effects on topological energy consumption of steam turbine. It makes great reference for the energy-saving diagnosis of the energy consumption for the overall power units.

• Periodical: Applied Mechanics and Materials (Volume 654)
• Pages: 113-116
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.654.113
• Online since: October 2014
• Authors: Ning Ling Wang, Han Xu, Peng Fu, Dian Fa Wu, Zhi Ping Yang, Yong Ping Yang
• Keywords: Distribution of Energy Consumption, Off-Designed Conditions, Specific Consumption, Steam Turbine Exhaust Pressure, Topological Factors

References

[1] Jia Honggang, Li Wei, Zhang Jianyu. Calculation and Analysis of the Influence between the Exhaust Pressure and the Steam Turbine Running Performance[J]. Journal of Chifeng University : Natural Science Edition, 2009, 25(11): 138-139.

[2] Sun Weipeng, Jiang Yong. Operation Optimization of Turbine Cold Terminals and Acquisition of the Optimal Back Pressure[J]. Power Device, 2011, 3: 008.

[3] Ma Hailong, Wang Yunmin, Zhang Xifu, et al. The Determining Method of the Optimum Running Back Pressure for the Condensing Steam Turbine in Power Plant[J]. Turbine Technology, 2013 (2): 118-120.

[4] Wang Ligang, Yang Yongping, Dong Changqing, et al．Theory of fuel specific consumption: its improvement and initial application[J]．Proceedings of the CSEE, 2012, 32(11): 16-21.

[5] Song Zhiping. Consumption rate analysis: theory and practice[J]．Proceedings of the CSEE, 1992, 12(4): 15-21(in Chinese).