Bachelor of Science in Agricultural and Biosystems Engineering

Field testing and evaluation of a solar-powered irrigation system in Bantud Fabrica, Dumangas, Iloilo

Thu, 01 May 2025 00:00:00 GMT

Field testing and evaluation of a solar-powered irrigation system in Bantud Fabrica, Dumangas, Iloilo Cawaling, Mherc Ranniel M.; Fabale, Franklin J. This study evaluates the field performance of the Bantud Fabrica Solar-Powered Irrigation System in Dumangas, Iloilo, to determine the efficiency of the pump set and the PV system in wet and dry seasons. Field testing was conducted over three days for each season, following the PNS/BAFS 325. Data were measured and calculated to determine the efficiency of the project. Results indicate that during the wet season, Pump 1 exhibited an average discharge of 108.01 m³/hr with a system efficiency of11.41% and 75.94% pump set efficiency, while Pump 2 had a lower discharge of 97.15 m³/hr with a system efficiency of 7.51% and pump set efficiency of 53.87%. On the other hand, in dry season, Pump 1 exhibited an average discharge of 98.08 m³/hr with a system efficiency of 3.99% and 65.40% pump set efficiency, while Pump 2 had a lower discharge of 87.18 m³/hr with a system efficiency of 3.69% and pump set efficiency of 49.33%. Overall, the BF-SPIS led to a 13.63% increase in rice yield, highlighting its positive impact on agricultural productivity. It is recommended to improve the conveyance and resupply project for the water reservoir, divert the excess solar energy to the grid by having hybridization of the system for it to function at night, increase the capacity of the water reservoir, and improve conveyance for water delivery in the field, reinspection and modification of the solar panel set up and lastly conducting a cost-benefit analysis for the BF-SPIS economic viability and overall benefits. Abstract only

GIS mapping of fishpond classification in Jordan, Guimaras

Sun, 01 Jun 2025 00:00:00 GMT

GIS mapping of fishpond classification in Jordan, Guimaras Alcubilla, Angel Grace J.; Palomar, Raef Cen R. In Guimaras, fishponds are essential to the local aquaculture sector, particularly in the Municipality of Jordan, the provincial capital. However, recent data highlights an erratic trend in aquaculture production over three consecutive years, with the lowest output recorded in 2020, reflecting a 10.50% decrease from the previous year. Despite advancements in remote sensing technologies like Geographic Information System (GIS), there is a notable absence of digitalized, open-access maps containing detailed fishpond information. This study aims to address this gap by integrating GIS technology and field surveys to generate a digitized map for fishponds of different classifications in the Municipality of Jordan, Guimaras. Field surveys were conducted in six of the 14 barangays, identifying eight active fishponds. Ocular visits and interviews were carried out using a profile data sheet to gather production data. Geographic coordinates were collected using the DA GeoCamera application and transferred to Google Earth Pro. These were then digitized using ArcGIS 10.8.1 software to create maps. Results showed that the majority of active fishponds are situated in Brgy. Sinapsapan (37.5%), while the other barangays contributed equally (12.5%). All fishponds were found to have concrete gates, with half utilizing a modified intensive culture system and the other half an intensive culture system. Spatial analysis using the Average Nearest Neighbor (ANN) tool quantified spatial relationships and revealed that active fishponds in Jordan, Guimaras, are randomly distributed. This study provides a valuable resource for aquaculture planning and management, promoting the sustainable development of fishpond operations in Guimaras. Abstract only

Design, fabrication, and testing of a portable cylindrical-type cassava peeling machine

Mon, 01 May 2023 00:00:00 GMT

Design, fabrication, and testing of a portable cylindrical-type cassava peeling machine Caborubias, Rher Joshua B. The aim of the study was to design, fabricate and test the performance of a cassava peeling machine. Fabrication was done in Brgy. Poblacion, Banate, Iloilo from August 2021 to September 2021 followed by the conduct of pre-testing and evaluation at the same location on December 2021. The machine is composed of: (a) peeling chamber where peeling occurs, (b) hatch where cassava is loaded, (c) pulley system where the prime mover is installed, (d) outlet chute where peelings are discharged, (e) 7 Hp internal combustion engine which drives the machine, and (f) support frame where the peeling chamber is placed. The machine has an overall dimension of 1000 mm L x 1320 mm W x 1400 mm H. Results of the study showed that the optimal speed of peeling the cassava in the peeling chamber is 50 rpm to 56 rpm. The average operating time of the machine with an initial loading capacity of 50 kg is 4.02 min. The rated capacity of the machine is 12.46 kg/min or equivalent to 744.23 kg/hr. It has a peeling efficiency of 80.31% and an average flesh loss of 19.96%. The consumption rate of the machine is 116.67 mL of diesel and is calculated to be 29.12 mL/min. The machine can be fabricated using locally available materials and it has an investment cost of PHP40,000.00. Further computation revealed that the cost of operating the machine was PHP1.54/min. The cost of running the machine for 4 hours in a day was calculated to be PHP369.60. Abstract only

Nipa palm (Nypa fruiticans) and plastic post-consumer wastes (PCW) as potential composite boards for building materials

Wed, 01 May 2024 00:00:00 GMT

Nipa palm (Nypa fruiticans) and plastic post-consumer wastes (PCW) as potential composite boards for building materials Cabrera, Lance Christian M. This study was conducted to utilize nipa palm fiber and plastic post-consumer wastes (PCW) as potential composite boards for building materials. This was conducted at Brgy. Cubay Jaro, Iloilo City from the month of September to December of 2023. The composite boards produced were composed of nipa palm frond fibers and PCW plastic with epoxy resin as binder in different mixing ratios. Three treatments with three replications were prepared having a weight ratio of 50:50, 60:40, and 70:30. Composite board samples were fabricated in order to test its physical and mechanical properties. Based on the results of the study, the composite board samples produced an average density of 76,183.67 mm3 and a density of 1003 kg/m3. The composite board samples produced a mean water absorption of 4.53% and were found to have no significant (P>0.05) difference in water absorption. The result of the study for mean thickness swelling showed a significant difference (P<0.05) with an overall mean of 3.36%. The result of modulus of rupture test showed a mean of 13.37 MPa and showed no significance (P<0.05) among the composite board samples. The empirical data showed that the overall best performing sample was composite board sample 2 which has the 60:40 wt to wt ratio with a mean water absorption rate of 4.54%, a mean result of 3.62% in thickness swelling and has a modulus of rupture results of 17.295 MPa. Abstract only