Comparative analysis of a small-scale three-bladed windmill for energy conversion

Date

6-2016

Degree

Bachelor of Science in Agricultural and Biosystems Engineering

Major Course

Major in Agricultural Power and Machinery Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Mark Keylord S. Onal

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

One of the cleanest sources of energy is wind energy. The design of a small-scale three-bladed horizontal axis windmill for energy conversion was conducted to analyze different parameters to rotational speed and torque. The study was conducted at laboratory conditions different parameters, type of material, chord length, and angle of attack, were tested at different wind speed setting. Optimal design for both materials were determined and analyzed. The torque and rotational speed of the optimal design were determined through statistical analysis. Results showed that design had a power coefficient of 0.07 to 0.08 and torque of 0.15 to 0.18 N-m with a rotational speed of 666 to 768 rpm. The optimum parameters obtained were 7 cm chord length and 10 degrees angle of attack for plastic, both running at 7.5 to 8.4 m/s wind speed range. Based on statistical analysis, all the parameters tested were significant at interpreting the rotational speed for both materials with values of R² ranging from 0.8976 to 0.9402 and 0.9457 to 0.9656 for metal and plastic, respectively. Values of R² for torque were 0.5081 to 0.7081 in metal and 0.5458 to 0.7604 for plastic. The accuracy of the predicting equation for metal were 96.18% for rotational speed and 92.07% for torque.For the plastic, the accuracy were 93.60% for rotational speed and 90.64% for torque.

Language

English

Location

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

Call Number

LG 993.5 2016 A2 B67

Document Type

Thesis

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