Matching of the Pump Lift in the Distributed Power System

Article Preview

Abstract:

We can calculate various pump lifts utilizing the method of solving the pressure balance loop equations in the distributed power system. For the system pumps are set at heat (cold) source and on each branch, if the number of independent loops is less than the pumps, the equations of the pump lift have multiple solutions. When considering the constraint conditions, if we determine the pump lift of the first branch, others can be determined. For the system pumps are set on the main pipes, if we install pumps at heat (cold) source and on each main water supply and backwater pipes, and the pumps of a corresponding pair of main water supply and backwater pipes are the same, when the number of independent loops is equal to the pump lifts, the equations can have solutions. Furthermore, the method can also be applied for other systems where pumps are set on the main pipes, and the equations of the pump lift have a unique solution.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

3077-3082

Citation:

Online since:

September 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Jiang Yi. Replacing Air Valves and Water Valves for Regulation with Variable Speed Pumps and Fans .HVAC, 1997, 27 (2): 66-71

Google Scholar

[2] Di Hongfa, Yuan Tao. The Analysis of Energy-saving of the Heating in the Distributed Variable Frequency Pump System, HVAC, 2003,32 (2): 90-93

Google Scholar

[3] Wang Hongxia, Shi Zhaoyu, Li Deying. The Applied Research in the Distributed Variable Frequency Heating and Transmission System. District Heating.2005 (1): 25-37

Google Scholar

[4] Fu Yongzheng, Wu Keqi, Cai Yaqiao. The Energy Consumption of Valves in the Conventional Water System and the Structure and Application in the Distributed Power System. HVAC, 2005, 35 (9): 6-10

Google Scholar

[5] Fu Xiangzhao, Wang Yueren, Wang Yuan. Fluid Transmission Pipe Networks. Beijing: Architecture &Industry Press, China, 2001.: 254-267

Google Scholar