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.--
- Manila: Technological University of the Philippines, 2025.
- xii, 156pages: 29cm.
Bachelor's thesis
College of Engineering.--
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.