Design and fabrication of water-pesticide mango sprayer flywheel operated by pedal mechanism with solar components/ Jard Cris D. Antrajenda, Avy Nicole U. Delos Reyes, Mary Camille L. John Paul C. Rica, and Rowifredo M. Santos.--

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Antrajenda, Jard Cris D [author]

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TextPublication details: Manila: Technological University of the Philippines, 2025.Description: xii, 156pages: 29cmContent type:

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BTH TJ 145 A58 2025

Dissertation note: College of Engineering.-- Bachelor of science in mechanical engineering: Technological University of the Philippines, 2025. Summary: Most agricultural operations are carried out using fuel-powered engines, from tractors to harvesters and sprayers, using gasoline-powered sprayers for mango farms heightened the expenses of mango growers in Pangasinan. The predominance of small- scale farming and low mechanization results in an inconsistent supply of high-quality products. One of the agricultural machineries is the utilization of power sprayers for mango trees. However, average power sprayers are usually fuel-powered engines that require high maintenance costs, which is a dilemma for small-scale farmers. This paper features a two-way mango sprayer using a pedal mechanism and solar powered water pump. The concept is to enhance the sprayer currently used by the selected beneficiary by employing a pedal with flywheel mechanism and solar powered rather than the fuel-powered engine linked to the water pump and manual knapsack sprayer. The anticipation is that this will minimize the dependency on fossil fuel, which is a significant contributor to farmers' high operational expenses. The machine was able to spray mango trees using solar at an average height of 10.49 m. As for the pedal mechanism, it only reached an average height of 6.61 m. An economic evaluation of the machine revealed a Return on Investment (ROI) of approximately 22.80%, indicating that the initial project cost could be recovered in about 5 years of regular use.

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Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TJ 145 A58 2025 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0006433

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Previous	BTH TJ 145 A53 2019 Development of watering system utilizing waterwheel as pump/	BTH TJ 145 A53 2024 Design and development of an automatic egg peeler with a small crusher machine/	BTH TJ 145 A58 2025 Design and fabrication of semi-automated portable caramelized coconut syrup maker machine for homemade business/	BTH TJ 145 A58 2025 Design and fabrication of water-pesticide mango sprayer flywheel operated by pedal mechanism with solar components/	BTH TJ 145 A73 2019 Design and fabrication of a small scale soybean combined harvester/	BTH TJ 145 A73 2025 Design and fabrication of a semi-automated “halo-halo” making machine/	BTH TJ 145 A74 2024 Design and fabrication of vegetable oil extraction machine/	Next

Bachelor's thesis

College of Engineering.-- Bachelor of science in mechanical engineering: Technological University of the Philippines, 2025.

Includes bibliographic references and index.

Most agricultural operations are carried out using fuel-powered engines, from
tractors to harvesters and sprayers, using gasoline-powered sprayers for mango farms

heightened the expenses of mango growers in Pangasinan. The predominance of small-
scale farming and low mechanization results in an inconsistent supply of high-quality

products. One of the agricultural machineries is the utilization of power sprayers for mango
trees. However, average power sprayers are usually fuel-powered engines that require high
maintenance costs, which is a dilemma for small-scale farmers.
This paper features a two-way mango sprayer using a pedal mechanism and solar
powered water pump. The concept is to enhance the sprayer currently used by the selected
beneficiary by employing a pedal with flywheel mechanism and solar powered rather than
the fuel-powered engine linked to the water pump and manual knapsack sprayer. The
anticipation is that this will minimize the dependency on fossil fuel, which is a significant
contributor to farmers' high operational expenses.
The machine was able to spray mango trees using solar at an average height of
10.49 m. As for the pedal mechanism, it only reached an average height of 6.61 m. An
economic evaluation of the machine revealed a Return on Investment (ROI) of
approximately 22.80%, indicating that the initial project cost could be recovered in about
5 years of regular use.

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