Jurnal Inovasi Teknologi Terapan
About the Journal Jurnal Inovasi Teknologi Terapan (JITT) dikelola oleh Politeknik Manufaktur Negeri Bangka Belitung sebagai wadah rutin bagi sivitas akademika dan praktisi dalam berbagi pengetahuan, temuan, dan pengalaman dalam hal inovasi teknologi terapan yang berkelanjutan. JITT ini merupakan ajang publikasi ilmiah mengundang para sivitas akademika dan praktisi untuk ikut serta sebagai penulis dalam mempublikasikan hasil-hasil penelitian dan pengembangan ilmu. Topik JITT (tidak terbatas pada): Elektronika, Kontrol, Otomasi, Robotika, Mekanik, Mesin, Material, Manufaktur, Perawatan Mesin, Information Technology, Programming, Energi Terbarukan, Kecerdasan Buatan, Computer Network, Kontrol Otomatis, Teknologi Pertanian dan Perikanan, Desain dan Rekayasa Mekanik. Jurnal Inovasi Teknologi Terapan (JITT) is managed by Politeknik Manufaktur Negeri Bangka Belitung as a regular forum for academics and practitioners to share knowledge, findings, and experiences in terms of sustainable applied technological innovation. JITT is a scientific publication event inviting academics and practitioners to participate as writers in publishing the results of research and development of science. JITT Topics (not limited to): Electronics, Control, Automation, Robotics, Mechanics, Machinery, Materials, Manufacturing, Machine Maintenance, Information Technology, Programming, Renewable Energy, Artificial Intelligence, Computer Networks, Automatic Control, Agricultural Technology and Fisheries, Design and Mechanical Engineering.
Articles
274 Documents
<![CDATA[Apparent Source-Level Efficiency of Internal Electric and External LPG Heating in a Laboratory Vacuum Evaporator ]]>
<![CDATA[Erwin Erwin]]>;
<![CDATA[Maulana Alfa Rizki]]>;
<![CDATA[Syarif Abdullah]]>;
<![CDATA[Slamet Wiyono]]>
<![CDATA[ Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan ]]>
Publisher : <![CDATA[Politeknik Manufaktur Negeri Bangka Belitung ]]>
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DOI: 10.33504/jitt.v4i2.464
<![CDATA[Background: Vacuum evaporation lowers boiling temperature, but performance depends on heat-source power and location, vacuum level, auxiliary demand, and the analytical boundary. This study compared an internally coupled electric resistance heater with an external LPG burner in the same laboratory vacuum evaporator using one non-replicated Water Boiling Test per configuration and 40 kg of water. Temperature, gauge pressure, water mass, reservoir temperature, and electrical variables were recorded every minute. The electric run lasted 367 min at 0.548 kW average source power; the LPG run lasted 300 min, consumed 0.80 kg fuel, and averaged 2.049 kW. LPG reached 65 °C at 35 min and evaporated 7.8 kg (0.0260 kg/min), whereas the electric heater reached 55 °C near the end and evaporated 2.4 kg (0.00654 kg/min). Apparent source-level efficiencies from a common sensible-plus-latent balance were 78.2% for electricity and 62.7% for LPG. A ±1 °C sensitivity changed these estimates by about ±1.39 and ±0.45 percentage points, respectively. Including vacuum-pump electricity reversed the system-level ordering. Because power, pressure, duration, and endpoints were not matched, the results describe two operating states rather than a causal heater-location effect.]]>
<![CDATA[Implementasi Sistem Hybrid Verifikasi Kehadiran Berbasis Embedded untuk Monitoring Distribusi MBG ]]>
<![CDATA[Aan Febriansyah]]>;
<![CDATA[Lesta Lesta]]>;
<![CDATA[Astria Jana Azzura]]>;
<![CDATA[Ilham Faqih]]>
<![CDATA[ Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan ]]>
Publisher : <![CDATA[Politeknik Manufaktur Negeri Bangka Belitung ]]>
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DOI: 10.33504/jitt.v4i2.465
<![CDATA[Attendance-data validity was essential to support accurate distribution of the Free Nutritious Meals Program. This study designed and implemented a Raspberry Pi 4-based hybrid attendance-verification system with selectable facial and fingerprint recognition. Experimental engineering was applied through device design, dataset preparation, software integration, and subsystem and integrated-system testing. Facial recognition used YOLOv5n as a trigger, MediaPipe for face detection, MobileFaceNet for embedding extraction, and cosine similarity for identity matching. The dataset produced 1,172 valid embeddings from 30 students. Testing achieved 100% fingerprint success, 100% face-detection success, and 94.7% facial-recognition accuracy. All five storage and web-dashboard functions operated as designed. The system supported local, automatic, and integrated attendance recording; however, facial-recognition performance decreased under low illumination.]]>
<![CDATA[Analisis Kompensasi Daya Reaktif pada Motor Slip-Ring Tiga Fasa Dengan Beban 1,6 Nm dan 2,1 Nm ]]>
<![CDATA[Ilham Faqih]]>;
<![CDATA[Haris Gibran Rizantha]]>;
<![CDATA[Surojo Surojo]]>
<![CDATA[ Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan ]]>
Publisher : <![CDATA[Politeknik Manufaktur Negeri Bangka Belitung ]]>
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DOI: 10.33504/jitt.v4i2.466
<![CDATA[Induction motors are widely used in industrial applications due to their favorable operating characteristics and ease of speed control. However, they exhibit a relatively low power factor caused by a high demand for inductive reactive power. This study aims to improve the power factor of a three-phase slip-ring induction motor through reactive power compensation using a capacitor bank. Tests were conducted at load conditions of 1.6 Nm and 2.1 Nm, utilizing a capacitor bank with eight activation levels and a total capacitance range of 0–30 μF. The results indicate that without compensation, the power factor was 0.29 and 0.33 for the respective load conditions. Optimal compensation was achieved using a combination of switches 2, 3, and 4 (total capacitance of 28 μF), which improved the power factor to 0.83 at a 1.6 Nm load and 0.89 at a 2.1 Nm load, while simultaneously reducing the line current to near-minimum values. Conversely, activating all switches (30 μF capacitance) resulted in over-compensation, causing the load characteristics to become capacitive; consequently, the power factor dropped to 0.50 and 0.43, accompanied by an increase in line current. The findings demonstrate that selecting the appropriate capacitor bank capacity can effectively improve the power factor and reduce line current in slip-ring induction motors.]]>
<![CDATA[Analisis Kompensasi Daya Reaktif terhadap Faktor Daya Motor Induksi Menggunakan Bank Kapasitor ]]>
<![CDATA[Yosar Leman]]>;
<![CDATA[Sasha Avrilia]]>;
<![CDATA[Surojo Surojo]]>
<![CDATA[ Jurnal Inovasi Teknologi Terapan Vol. 4 No. 2 (2026): Jurnal Inovasi Teknologi Terapan ]]>
Publisher : <![CDATA[Politeknik Manufaktur Negeri Bangka Belitung ]]>
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DOI: 10.33504/jitt.v4i2.467
<![CDATA[Induction motors are the most widely used electrical machines in industry and are classified as inductive loads that absorb significant reactive power, resulting in a low power factor. A low power factor increases line current, causes greater distribution losses, and may incur penalty charges from utility companies. This study experimentally analyzes the effect of a switchable capacitor bank on the power factor and line current of a three-phase slip-ring induction motor under three loading conditions (M = 1.6 Nm, 1.8 Nm, and 2 Nm) at a supply voltage of 380 V / 50 Hz. Eight capacitor bank switching levels ranging from 0 to 1,350 VAR were tested. The results show that the power factor improved significantly from 0.23–0.28 (no compensation) to 0.53–0.55 at the optimal level (1+2+3+4), while the line current decreased by up to 53% from 1.57–1.72 A to 0.73–0.82 A. The motor current remained unaffected by compensation, confirming that capacitive compensation only reduces reactive current on the supply side. Over-compensation was also observed when excessive capacitance was applied, causing the power factor to deteriorate. These findings confirm that proper capacitor bank sizing is critical and must match the reactive power demand at each load condition.]]>
