Performance evaluation of a micro hydro Kaplan turbine

Date

5-2011

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, Rosanna Marie C. Amongo

Request Access

To request access of this material, please email the administrator at uscs-mainlib.uplb@up.edu.ph

Abstract

Micro hydro power system used the energy of moving water to produce power. The movement of water in the form of kinetic energy can be converted into mechanical energy, the power then can be generated from these movements of masses of water. The use of different flow rates and head settings to test if turbine power can still be harnessed may lead to further study and improvement of the system so that much wider group can access micro hydro. Such application will be installation at drop structures in the different gravity irrigation systems. An existing test rig for micro-hydro was modified to evaluate the performance of the micro-hydro Kaplan turbine Modifications were made to accommodate lower head settings and to vary the flow velocity. A prony-brake dynamometer was fabricated to measure the mechanical power of the turbine.The micro hydro was tested at different pressure heads of 1.5m, 1.0m and 0.5m and two orifice heights of 5cm and 8cm. The maximum power attained from Set-up 1 (1.5 head, 5cm orifice height) was 231.61 WattsIt was observed that the relationship between the efficiency and the rotational speed in Set-up 1 has no obvious trend or pattern.The maximum power obtained from Set-ups 3 (1.0m head, 5cm orifice height) and 4 (1.0m head, 8cm orifice height) were 119.41 Watts and 117.035 Watts respectively. The maximum efficiency obtained from Set-up 3 was 71.93% and 55.99% was the maximum efficiency obtained from Set-up 4. The maximum power obtained fro Set-ups (0.5m head, 5cm orifice height) and 6 (0.5cm head, 8cm orifice height) were only 18.84 Watts and 20.78 Watts, respectively. Output power of this magnitude could not be used for practical application. It was observed that the maximum power obtained for all test was 254.67 Watts with a pressure head of 1.5m and efficiency of 57.33%. Maximum power from 0.5m to 1.5m has a liner trendThis relationship may be used to estimate the maximum power at heads between 0.5m and 1.5m.

Language

English

Location

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

Call Number

LG 993.5 2011 A2 P36

Document Type

Thesis

This document is currently not available here.

Share

COinS