Utilization of coconut (Cocos nucifera L.) rachis as fuel in improved bioflame stove

Date

4-2011

Degree

Bachelor of Science in Agricultural Engineering

Major Course

Major in Agricultural and Bio-Process Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Adviser/Committee Chair

Jessie C. Elauria

Committee Member

Rossana Marie C. Amongo, Edgardo V. Casas

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Abstract

The potential of the coconut (Cocos nucifera L.) rachis as fuel in Improved Bioflame Stove was determined as affected by factors such as the moisture content, size of fuel in varying lengths, and area of air opening of the stove. The moisture content of the fuel varied from 12-14%, 20-22%, and 28-30%. The sizes of fuel were 25 mm, 50 mm and 75 mm. The areas of air opening were 1875 mm2

, 1225 mm2

, and 575 mm2 .

The fuel characteristics of coconut rachis were determined through proximate analysis; combustion characteristics were tested, and other physical characteristics were measured. The size of fuel and area of air opening significantly affected the burning rate of fuel in the stove. Moisture content significantly affected the specific fuel consumption and thermal efficiency. Coconut rachis is composed of 73.57% volatile matter, 19.60% fixed carbon, and 6.82% ash in dry weight basis. Coconut rachis when burned exhibited an ember burning time longer than the flaming time. Coconut rachis can be used as fuel in Improved Bioflame Stove and a desirability value of 90% can be attained under the following optimal conditions: 12-14% fuel moisture content, 75 mm of length, and 1875 mm2 of the stove’s air opening. Verification test on the optimal conditions showed no significant difference and verified values.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Document Type

Thesis

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