Performance evaluation of a centrifugal pump as turbine for micro systems application

Date

4-2011

Degree

Bachelor of Science in Agricultural Engineering

Major Course

Major in Agricultural Power and Machinery Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Arthur L. Fajardo

Committee Member

Marvin C. Petingco, Delfin C. Suministrado, Rosanna Marie C. Amongo

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Abstract

Hydropower is a well proven and widely used renewable energy source. It utilizes the potential energy of water to be converted into useful mechanical energy which then could be converted into electrical energy. The main problem in micro-hydro systems is its core component, the turbine. The Philippines is entirely dependent on imported equipment for hydro power utilization specifically the turbine and generator. The performance of pump as turbine was evaluated considering the following pump advantages: (1) pumps can run in reverse to replace turbines, (2) widely available in the market and (3) easy maintenance. A 75X75mm end suction, non-self priming centrifugal pump was evaluated for its performance as a turbine. The pump as turbine was tested at different head settings and penstock diameters (75mm and 50mm pipes). Results showed that the centrifugal pump could be operated in turbine mode without any mechanical modifications. Furthermore, it has higher efficiency in turbine mode both using 75-mm (80.32%) and 50-mm(70.31%)`penstock compared to the 60.6% in pump mode. However, the maximum shaft power is significantly lower, 1.02 for 75mm penstocks and 0.74kW for 50mm penstock compared to 2.14kW in pump mode.

Language

English

LC Subject

Centrifugal pumps--Performance, Turbine pumps, Hydrothermal electric power systems

Location

UPLB College of Engineering and Agro-Industrial Technology (CEAT)

Call Number

LG 993.5 2011 A2 R49

Document Type

Thesis

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