A Comparative Study on Economy of Driving Mode for Boiler Feed Pumps

Author

Peng, Xianyong ; Wang, Peihong

Author_Institution

Sch. of Energy & Environ., Southeast Univ., Nanjing, China

fYear

2010

fDate

28-31 March 2010

Firstpage

1

Lastpage

4

Abstract

Motor-driven and steam-driven modes are mainly driving modes of boiler feed pumps in China. A novel evaluation method based on equivalent work efficiency was put forward, and the exemplification of feed water pump driving modes of 300 MW unit showed the feasibility and effectiveness of the method. The two driving modes of boiler feed pumps were analyzed and compared by net heat consumption rate, equivalent work efficiency rate and comprehensive cost-based coal consumption rate. The results show that the use of steam-driven pumps in 300 MW and large units can reduce net heat consumption rate and increase the output of the unit. The operating stability and regulating performance of steam-driven pumps are improved, so steam-driven pumps should be superior to motor-driven pumps.

Keywords

boilers; electric motors; power generation economics; pumping plants; pumps; steam power stations; China; boiler feed pumps; comprehensive cost-based coal consumption rate; equivalent work efficiency rate; evaluation method; feed water pump; motor-driven mode; net heat consumption rate; power 300 MW; steam-driven modes; steam-driven pumps; Boilers; Engine cylinders; Feeds; Heat pumps; Investments; Power generation; Power transmission; Thermodynamics; Turbines; Water heating;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4812-8

Electronic_ISBN

978-1-4244-4813-5

Type

conf

DOI

10.1109/APPEEC.2010.5449471

Filename

5449471