Matching and performance evaluation of electric generating system for a pump-as-turbine micro-hydro set up.

Date

2012

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)

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

A 900 W alternating current (AC) generator and a 35-Ampere automotive alternator were matched and tested at different pressure and load settings with the pump-as0turbine. The performance of the system was evaluated through their electrical power output and efficiency. Performance curves of AC generator at 4000rpm and 3800rpm generally showed that as the speed increases, voltage, electrical power and efficiency increase while current decreases. The maximum power obtained by the AC generator during the actual run was 515 watts which is way below the calibrated value of 846 watts. The generator Match A with pulley combination of 254mm (pump-as-turbine) and 50.8mm(generator) gave the highest power output. no general trend was observed in terms of electrical power and system efficiency on performance curves of alternator test at different pressure settings. The percent difference of the maximum power obtained from actual and calibration test of alternator ranges from 0.5% to 67.5%. Relatively high percent difference could be observed at lower pressure settings. If belt slippage could be reduced, the maximum power obtained during calibration test could be obtained in the actual test. Thus, the 35A automotive alternator could be matched with the 75mmx75mm pump-as-turbine.

Language

English

Location

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

Call Number

LG 993.5 2012 A2 D45

Document Type

Thesis

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