Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal EDUCATIONE: Journal of Education Research and Review
Fransiscus Josep Tulung
Politeknik Negeri Manado
Education Social Sciences

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
COCONUT DEHUSKING MACHINE DESIGN AS A PROJECT-BASED LEARNING CONTEXT IN MECHANICAL VOCATIONAL EDUCATION Rifan Gabriel Pantow; Andri Firmansyah Yalisando; Nazriel Jusuf; Priyono; Djefry Paulus Hosang; Fransiscus Josep Tulung; Silvy Dollorossa Boedi
EDUCATIONE Vol. 4 No. 2 (2026)
Publisher : CV. TOTUS TUUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59397/edu.v4i2.300

Abstract

The previously developed coconut dehusking machine showed operational limitations because the pressing mechanism required operator assistance and the removed husk was not continuously discharged. This study developed and functionally validated an integrated spring-loaded pressing mechanism and belt conveyor-based husk disposal system intended to stabilize coconut movement and maintain a clear dehusking area. The engineering-development process comprised problem identification, computer-aided design, fabrication and assembly, machine testing, and descriptive data analysis. The pressing subsystem used a tension spring, rollers, a belt, and bolt-type lugs to maintain contact with the coconut, whereas the disposal subsystem used a belt conveyor positioned below the dehusking zone. Functional testing was conducted with ten mature coconuts with circumferences of 54.5–57.0 cm. The mean dehusking time was 8.85 s (SD = 0.80 s; range = 7.71–10.27 s). During the reported trials, the pressing mechanism maintained contact and guided coconut rotation, while the conveyor transported the removed husk to the collection area without reported manual clearing during the dehusking cycle. These findings demonstrate successful integration and proof-of-function under the tested conditions; they do not establish comparative performance improvement because no baseline machine was tested concurrently. Further work should quantify capacity, durability, energy use, safety, and performance across a wider range of coconut characteristics and operating conditions.
COMPETENCY-BASED AUTOMOTIVE DIAGNOSTICS: DEVELOPMENT AND EVALUATION OF A TPS–ECU FAULT DETECTION TRAINING MODULE Muhammad Ega Pratama; Tammy Tinny Veisy Pangow; Fransiscus Josep Tulung
EDUCATIONE Vol. 4 No. 2 (2026)
Publisher : CV. TOTUS TUUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59397/edu.v4i2.306

Abstract

Accurate sensor signals are essential for reliable Electronic Control Unit (ECU) operation in modern automotive systems; however, Throttle Position Sensor (TPS) degradation may generate intermittent signals that are difficult to detect through visual inspection alone. This study aimed to identify the mechanism of TPS interference, examine its effects on ECU signal processing and engine performance, and evaluate corrective measures with implications for automotive vocational diagnostics. An experimental diagnostic approach was conducted on a Daihatsu Xenia 1.0 Non-VVT-i equipped with an EJ-DE engine. Data were obtained through physical inspection, TPS output-voltage measurements across different throttle-opening angles, OBD-II Diagnostic Trouble Code (DTC) analysis, ECU live-data observation, and post-repair verification. The results revealed wear on the TPS resistive track and mild connector corrosion, producing unstable voltage fluctuations of 0.3–4.8 V within the 45°–55° throttle-opening range. The anomalies were associated with DTCs P0121, P0122, P0300, and P0171, unstable idle speeds of 550–950 rpm, acceleration hesitation, and ECU fail-safe operation. Replacing the TPS, cleaning the connector, recalibrating the system, and clearing the DTCs restored linear voltage output, stabilized idle speed at approximately 750 rpm, and normalized acceleration response. The study concludes that TPS interference disrupts ECU functional accuracy without causing permanent internal ECU damage. These findings provide an evidence-based diagnostic sequence that can strengthen troubleshooting competencies in automotive vocational education. Future research should validate the diagnostic framework across different vehicle models, sensor technologies, and vocational learning environments.
Low-Power Grass Chopping Machine Performance as an Authentic Project for Vocational Engineering Education Valentino Massie; Hani Ruland Massie; Franklin Bawano; Nody Poluan Sompie; Djefry Paulus Hosang; Fransiscus Josep Tulung
EDUCATIONE Vol. 5 No. 1 (2027): (Issue in Progress)
Publisher : CV. TOTUS TUUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59397/edu.v5i1.317

Abstract

Background and Objective: Vocational engineering education requires authentic projects that connect design, fabrication, measurement, testing, and evidence-based improvement, yet technical machine studies are rarely organized as reusable educational cases. This study evaluated a compact low-power grass chopping machine and examined its suitability as an authentic project case for vocational engineering education. Methods: An experimental engineering design was conducted from February to August 2026 using a FLASH-250G 1/4-HP motor, one 1.6-mm steel-plate blade, and a compact steel frame. Elephant, odot, and sansibar grass were tested at 1-5 kg loads. Rotational speed, chopping time, and post-chopping mass were recorded, and three test series were averaged for each condition; analysis was descriptive because run-level dispersion data were unavailable. Results: The machine completed all reported conditions at 2,457-2,978 rpm. Chopping time increased from approximately 2-3 minutes at 1 kg to approximately 10 minutes at 5 kg, with descriptive load-time slopes of 116.28-121.41 seconds/kg. Derived batch processing rates were approximately 22.49-29.37 kg/h. Conclusion: The prototype demonstrates functional feasibility under the reported conditions and provides a technically grounded authentic-project structure for vocational engineering learning in design, fabrication, measurement, safety, data interpretation, and redesign. Educational effectiveness was not tested and requires direct student-outcome evidence.
TECHNICAL EDUCATION FOR SUSTAINABLE DEVELOPMENT: EXPERIMENTAL LEARNING THROUGH PICO-HYDRO PROPELLER TURBINE DESIGN AND IMPLEMENTATION Paul Maarthen Rumagit; Tammy Tinny Pangow; Herotje Siwi; Fransiscus Josep Tulung
EDUCATIONE Vol. 3 No. 1 (2025)
Publisher : CV. TOTUS TUUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59397/edu.v3i1.113

Abstract

Indonesia possesses immense hydropower potential, yet much remains untapped, especially for rural electrification where reliable access to electricity is still limited. Pico-hydro technology, utilizing small-scale water turbines, represents a promising, environmentally friendly solution for decentralized power generation in remote areas. However, the effectiveness of conventional pico-hydro turbines is often constrained by low or variable water flow, necessitating innovation in turbine design. This research aimed to design, fabricate, and experimentally evaluate a small-scale vertical-blade propeller (pico-hydro) turbine, with a particular focus on the effects of blade number and inclination angle on turbine performance. An experimental method was conducted in a laboratory setting using variations of blade geometry, type, and inclination angle under controlled water flow conditions. The results demonstrated that both water discharge and head height substantially affect turbine output, with the optimal configuration—standard (curved) blades, four in number, at a 30° angle—achieving a maximum power output of 200 Watts and superior efficiency compared to other tested variants. These findings validate that careful optimization of blade geometry can significantly enhance the performance of pico-hydro turbines, contributing valuable empirical data for rural electrification strategies. The study’s practical implication is clear: locally manufactured turbines with optimized blade design can enable more sustainable and widespread rural electrification. Further research is recommended to assess long-term field performance and investigate advanced materials and digital design tools for even greater efficiency and adaptability.
Co-Authors Andri Firmansyah Yalisando Djefry Paulus Hosang Franklin Bawano Hani Ruland Massie Herotje Siwi Muhammad Ega Pratama Nazriel Jusuf Nody Poluan Sompie Paul Maarthen Rumagit Priyono Rifan Gabriel Pantow Silvy Dollorossa Boedi Tammy Tinny Pangow Tammy Tinny Veisy Pangow Valentino Massie