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All Journal Jurnal Teknik Mesin CAKRA KIMIA (Indonesian E-Journal of Applied Chemistry) Seminar Nasional Teknik Kimia Kejuangan JMM (Jurnal Masyarakat Mandiri) SULUH: Jurnal Abdimas Jurnal Abdimas Madani dan Lestari (JAMALI) Agro Bali: Agricultural Journal INTEGRITAS : Jurnal Pengabdian ASAWIKA: Media Sosialisasi Abdimas Widya Karya Jurnal Abdi Insani Buletin Profesi Insinyur Academia Open Jurnal Teknik Kimia Indonesia Peka: Jurnal Pengabdian Kepada Masyarakat SENAPAS Widya Teknik
Adriana Anteng Anggorowati
Program Studi Teknik Kimia, Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Teknologi Tepat Guna Mesin Pencuci Porang untuk Meningkatkan Produktivitas Petani Porang di Desa Morang, Kare, Madiun: Indonesia Irawaty, Wenny; Hadi; Wijaya, Christian Julius; Indrawati, Chatarina Dian; Anggorowati, Adriana Anteng; Soetaredjo, Felycia Edi; Santoso, Shella Permatasari; Ismadji, Suryadi; Yuliana, Maria; Ernest, Edward H; Wardhani, Rinda; Afendi, Yulius; Panjaitan, Imelda
Jurnal Abdimas Madani dan Lestari (JAMALI) Volume 06, Issue 01, Maret 2024
Publisher : UII

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jamali.vol6.iss1.art9

Abstract

Recently, the productivity of porang tuber-based products has been growing well, especially after the Indonesian Government released a policy to prohibit the export of porang plants and their harvested products. One of the porang-based products is in the form of chips. Before processing, the porang tubers must be washed thoroughly to remove soil/dirt from the surface. The conventional washing process of each tuber can take up to 3-5 minutes. Therefore, the purpose of this activity is to design and manufacture porang washing equipment based on centrifuge washing model with rubber vibration. Four stages to carried out the program, i.e. designed and manufactured the washing machine, run the machine in laboratory, training activities to the porang farmers, and evaluation process. From the observation to porang farmers as our partner during the activity, it can be seen that the partners can operate the washing machine well. The results show that the washing process of porang tuber using this technology can save the washing time up to 90% compared to the conventional washing. The surface cleanliness of porang tubers resulted from the developed washing machine is the same as the conventional one. The noise level of the machine has met the requirement of Indonesian Government. It is clear that the usage of  the machine can increase the production capacity of products-based porang tuber. In addition, the use of this technology may promote a more comfortable and healthy work environment due to ergonomic reason, however, based on RULA analysis, the machine is still need to be improved in the future. Overall, the partners were satisfied with this activity and expected to have further programs in the future.
PENDAMPINGAN PENYUSUNAN MODEL BISNIS CANVAS PADA UNIT BISNIS PAKAN TERNAK BUMDES DHARMA PITALOKA DESA CURAH COTTOK SITUBONDO Rachmawati, Dyna; Joewono, Andrew; Anggorowati, Adriana Anteng
Jurnal Abdi Insani Vol 11 No 2 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i2.1534

Abstract

BUMDes Dharma Pitaloka is a business entity owned by Curah Cottok village, Kapongan District, Situbondo Regency. Since the Covid-19 pandemic, BUMDes income has decreased from both transportation and educational tourism businesses called Cottok Innovations Park (CIP). This encouraged the management of BUMDes Dharma Pitaloka to diversify its business by establishing a new business unit, namely animal feed. This animal feed has as its main raw material shrimp heads which are waste from a shrimp export company located near the village of Curah Cottok. The aim of this activity to prepare for the establishment of this animal feed business unit at BUMDes Dharma Pitaloka. Preparing a business plan is one aspect that must be prepared by the animal feed business unit. The implementation method is mentoring carried out in 2 ways, namely: tutorials and independent activities. The tutorial was carried out using a zoom meeting and video tutorial on filling out the business model canvas. The independent activity is the preparation of a business plan using a canvas model by 2 BUMDes administrators. This mentoring activity produces an output, namely a business plan for the animal feed business unit. This canvas model business plan is apparently easy to understand for BUMDes administrators who will be in charge of the animal feed business unit. This concludes that this mentoring activity is quite effective because it can produce output. This canvas model business plan will be used by the management of BUMDes Dharma Pitaloka in carrying out operational activities of the poultry feed business unit.
Optimization of DC Motor PID Control Using the Ziegler–Nichols Method with Encoder and Op-Amp (Lm324): Optimasi Kontrol PID Motor DC Menggunakan Metode Ziegler–Nichols Dengan Encoder Dan Op-Amp (Lm324) Syahrorini, Syamsudduha; Akmaludin, Mohammad; Mubarok, Mohammad Syahrul; Anggorowati, Adriana Anteng
Academia Open Vol. 10 No. 2 (2025): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.12875

Abstract

Design and optimization of PID controller for Arduino Uno-based DC motor with encoder feedback and signal conditioning using LM324 op-amp. The method used is Ziegler–Nichols (ZN) to obtain the initial parameters Kp, Ki, and Kd from the measurement of ultimate gain (Ku) and oscillation period (Pu). The plant model uses a digital implementation of a DC motor including anti-windup, first-order filtered derivatives, and PWM voltage limiting. The test data in the form of step response, disturbance rejection, and sensitivity to noise are analyzed using rise time, overshoot, settling time, IAE, and ISE indicators. The analysis results of Ku≈11.3 and Pu≈0.3 s produce Kp≈6.80, Ki≈45.31, Kd≈0.25, with fast response and acceptable overshoot; fine-tuning reduces oscillation and accelerates steady-state time. The conclusion is that the LM324 encoder improves feedback accuracy, while ZN is effective as a starting point for tuning for stable and robust performance. Highlights: Accurate tuning using Ziegler–Nichols method provides effective initial PID parameters. LM324 signal conditioning enhances encoder feedback precision. Optimized response achieves fast rise time with minimal overshoot and stable steady-state. Keywords: PID, Ziegler–Nichols, motor DC, encoder, LM324
Analysis of a Single-Phase Transformer Protection Control System Using a Microcontroller: Analisis Sistem Kontrol Proteksi Transformator Satu Fase Menggunakan Mikrokontroler R.S., Dwi Hadidjaja; Anggorowati, Adriana Anteng; U.N, Dewi Handayani
Academia Open Vol. 10 No. 2 (2025): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.12990

Abstract

General Background: Single-phase distribution transformers frequently experience overcurrent, overvoltage, and thermal stress, which account for a significant portion of operational failures in low-voltage networks. Specific Background: Conventional thermal–electromechanical relays exhibit slow response times (150–300 ms) and lack real-time multi-parameter monitoring, limiting their ability to prevent insulation degradation under rapidly fluctuating loads. Knowledge Gap: Prior microcontroller-based protection studies rarely provide quantitative benchmarking against conventional relays, lack integrated current–voltage–temperature sensing, and often omit controlled fault-injection experiments for latency validation. Aims: This study aims to develop and evaluate a microcontroller-based protection system using calibrated ACS712, ZMPT101B, and NTC sensors with real-time decision logic to reduce fault-detection latency and improve protection reliability. Results: Experimental testing on single-phase transformer fault-injection scenarios demonstrated detection latencies of 84 ms (overcurrent), 96 ms (overvoltage), and 112 ms (thermal), with sensor errors below 2.4%, a 98.1% trip success rate, and only 1.3% false positives across 50 cycles. Novelty: The system integrates low-error multi-parameter sensing with sub-120-ms response and provides the first quantitative benchmark showing performance improvements over conventional relays. Implications: Findings confirm that optimized low-cost microcontroller platforms can serve as scalable, accurate, and time-efficient protection solutions for distribution transformers, supporting future development of intelligent protection systems. Highlights: Sub-120 ms fault-detection latency significantly outperforms conventional relays. Multi-parameter sensing (current–voltage–temperature) enhances reliability and reduces missed trips. Low-cost microcontroller platform provides a scalable and accurate protection alternative for distribution systems. Keywords: Fault Detection, Microcontroller-Based Protection, Thermal Monitoring, Transformer Protection System, Overcurrent–Overvoltage
Component Tolerance and Performance of 2-Way Passive Crossovers: Toleransi Komponen dan Kinerja Penyeberang Pasif Dua Arah Ahfas, Akhmad; Anggorowati, Adriana Anteng; R.S., Dwi Hadidjaja
Academia Open Vol. 10 No. 2 (2025): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.10.2025.12997

Abstract

General Background: Passive 2-way crossover filters play a crucial role in dividing audio signals between woofer and tweeter channels, where their performance is highly dependent on the precision of passive components. Specific Background: Variations in capacitor and inductor values, along with their tolerances, can significantly alter crossover frequency, phase characteristics, and harmonic distortion, yet these effects are not fully quantified in practical implementations. Knowledge Gap: Limited studies provide an integrated empirical–analytical assessment of how component deviations influence frequency response, THD, and impedance stability in real passive 2-way filters. Aims: This study evaluates the influence of component tolerances on crossover frequency accuracy, filter slope behavior, phase stability, and distortion performance. Results: Experimental findings show that ±10–15% component deviations shift crossover frequency by 7.1–8.5%, reduce filter slope by 2.1–3.2 dB/octave, increase THD from 0.8% to 3.2% at 10W, and induce impedance fluctuations that shift the crossover point by an additional 3.2%. Inductors exhibit higher sensitivity (0.72–0.78) than capacitors (0.45–0.52). Novelty: This study provides a combined simulation–measurement analysis linking component tolerance to measurable acoustic deviations. Implications: The results highlight the need for ≤5% tolerance components and pre-assembly verification to ensure stable crossover performance. Highlights: Component tolerances significantly shift crossover frequency and reduce filter accuracy. Inductors have a stronger impact on system performance than capacitors. Using ≤5% tolerance components improves stability, distortion, and overall audio quality. Keywords: Passive Crossover Filter, Component Tolerance, Crossover Frequency Shift, Total Harmonic Distortion, Impedance Stability
Analisis Penerapan Total Productive Maintenance (TPM) Dengan Metode Overall Equipment Effectiveness (OEE) Pada Mesin Press Tri Ngudi Wiyatno; Adriana Anteng Anggorowati; Suratno Lourentius; Dwi Indra Prasetya
Widya Teknik Vol. 25 No. 1 (2026): Mei
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Dalam penelitian ini dirumuskan masalah tentang bagaimanakah penerapan Total Productive Maintenance (TPM) pada mesin Press. Tujuan dari penelitian ini adalah untuk menganalisa penerapan TPM pada mesin Press, menganalisa faktor yang mempengaruhinya dan memberikan rekomendasi tindakan perbaikan untuk meningkatkan efisiensi mesin. Pengukuran kinerja mesin Press ini  dilakukan dengan menggunakan metode perhitungan Overall Equipment Effectiveness (OEE). OEE adalah salah satu aplikasi progam TPM dan merupakan suatu metode perhitungan nilai efisiensi kinerja suatu proses/peralatan. Dari hasil perhitungan nilai OEE, diperoleh rata-rata OEE dari bulan Juli 2024 sampai September 2024 sebesar 83,12%. dengan nilai terendah pada Performance Rate yaitu sebesar 86,83%, Selanjutnya mengidentifikasi akar permasalahan yang menyebabkan Performance rate rendah dengan menggunakan diagram Fishbone. Setelah diketahui akar permasalahannya, langkah selanjutnya menentukan tindakan perbaikan untuk meningkatkan efisiensi mesin Press tersebut.
DISEMINASI TEKNOLOGI TEPAT GUNA ALAT PENGOLAH MINYAK JELANTAH MENJADI BIODIESEL BAGI MASYARAKAT KECAMATAN JAMBANGAN SURABAYA Retnoningtyas, Ery Susiany; Gunawan, Ivan; Putro, Jindrayani Nyoo; Puspitasari, Nathania; Joewono, Andrew; Anggorowati, Adriana Anteng; Santoso, L. M. Hadi; Yuliana, Maria; Yunita, Theresia Laurensia
JMM (Jurnal Masyarakat Mandiri) Vol 8, No 1 (2024): Februari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v8i1.20265

Abstract

Abstrak: Minyak goreng bekas pakai atau minyak jelantah merupakan salah satu limbah rumah tangga terbesar di Indonesia. Minyak jelantah yang dibuang sembarangan dapat mencemari lingkungan. Masyarakat di kecamatan Jambangan, kota Surabaya sangat menyadari dampak buruk dari pencemaran minyak jelantah terhadap lingkungan. Karena itulah diinginkan mengolah minyak jelantah yang telah dikumpulkan sebagai bahan bakar biodiesel. Tujuan pengabdian masyarakat ini adalah untuk meningkatkan kesadaran masyarakat Jambangan agar tidak membuang secara sembarangan limbah minyak jelantah sehingga dapat menurunkan jumlah limbah minyak jelantah yang dibuang ke lingkungan. Metode kegiatan yang dilaksanakan adalah melakukan edukasi berupa pemberian materi dan praktek cara mengubah limbah minyak jelantah menjadi biodiesel menggunakan alat pengolah minyak jelantah. Untuk memudahkan pengoperasian alat pengolah minyak jelantah ini, didampingi dengan manual penggunaannya yang disusun menggunakan bahasa yang mudah dipahami oleh masyarakat sehingga dapat belajar secara mandiri. Mitra yang terlibat dalam kegiatan ini adalah Ikatan Pekerja Sosial Masyarakat (IPSM) Jambangan dan masyarakat kelurahan Karah, kecamatan Jambangan. Hasil dari aktivitas ini, masyarakat kecamatan Jambangan Surabaya dapat mempraktekkan langsung proses pengolahan minyak jelantah menjadi biodiesel. Bahkan dalam hasil evaluasi kuesionernya, mayoritas yaitu sebanyak 72% ingin mengikuti kompetisi di wilayahnya dengan memanfaatkan alat pengolah minyak jelantah ini. Hal ini tentunya menunjukkan apresiasi yang luarbiasa terhadap kegiatan abdimas ini.Abstract: Used cooking oil residue or known as ‘jelantah’ oil is one of the largest household wastes in Indonesia. Used cooking oil residue that is thrown away carelessly can pollute the environment. People in Jambangan sub-district, Surabaya city are very aware of the negative impact of used cooking oil pollution on the environment. That's why it is desirable to process the collected ‘jelantah’ oil as biodiesel fuel. The aim of this community service is to increase awareness of the Jambangan community not to carelessly dispose of used cooking oil waste so that it can reduce the amount of used cooking oil waste that is thrown into the environment. The method of activity is to provide education in the form of providing material and practice on how to convert used cooking oil waste into biodiesel using used cooking oil processing equipment. To make it easier to operate this used cooking oil processing tool, it is accompanied by a manual for its use which is prepared using language that is easy for the public to understand so that they can learn independently. The partners involved in this activity are the Jambangan Community Social Workers Association (IPSM) and the community of Karah - Jambangan sub-district. As a result of this activity, the people of Jambangan Surabaya sub-district can directly practice the process of ‘jelantah’ oil into biodiesel. Even in the results of the questionnaire evaluation, the majority, namely 72%, wanted to take part in competitions in their area using this used ‘jelantah’ oil processing equipment. This certainly shows extraordinary appreciation for this community service activity.
How to Increase Machine Efficiency in the Diaper Production Process Using a Lean Manufacturing Approach Kurnia, Hibarkah; Anggorowati, Adriana Anteng; Nuryono, Arif; Jaelani, Nur Ain
Widya Teknik Vol. 25 No. 1 (2026): Mei
Publisher : Fakultas Teknik, Universitas Katolik Widya Mandala Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

In today's manufacturing world, competition is increasingly fierce; therefore, every company is trying its best to increase productivity as one of the strategies to be able to compete in the market. PT. XYZ is currently facing problems related to the effectiveness of machine or equipment operations. The problem currently being faced is the length of the diaper change production process, which takes up to 8100 seconds/135 minutes, causing a decrease in machine efficiency by 25%. This study aims to reduce the time of the diaper change production process, which takes a long time. The research method employs the Lean Manufacturing (LM) approach, utilising Value Stream Mapping (VSM) and Single Minute Exchange of Dies (SMED) methods to reduce the production time of diaper item changes, thereby increasing machine efficiency. The results of this study showed a diaper change production process time of 135 minutes, and the time after using LM was reduced to 105 minutes. By presenting a diaper change production process time efficiency of 20%, these results indicate that the VSM and SMED methods can be used to reduce waste and speed up the diaper change production process time.
Co-Authors Afendi, Yulius Afifah, Risdiana Cholifatul Ahmad Ahfas Akmaludin, Mohammad Andrew Joewono Andrew Joewono Andrew Joewono, Andrew Androva, Althesa Angka, Peter Rhatodirdjo Arif Nuryono, Arif Ayuningtyas, Debora Chatarina Dian Indrawati Dany Wibowo Diyah Tulipa Dwi Indra Prasetya Dyna Rachmawati Ernest, Edward H Ery Susiany Retnoningtyas Felycia Edi Soetaredjo Gatut Phengkusaksomo Gunarto, Chintya Hadi Husna, Muhammad Qiqi Abai Ibnu Toto Husodo, Ibnu Toto Ikhwanudin, Ikhwanudin Ikhwanudin Imelda Panjaitan Ivan Gunawan Ivy Yuanita Jaelani, Nur Ain Juanda, Kevina Tomiko Juliana Anggono Laiman, Sean Jonathan Lestariningsih, Diana Lorensius Anang Setiyo Waloyo Lourentius, Suratno Ma'mun, Hisyam Malehere, Mario Marvin Putra Mubarok, Mohammad Syahrul Murdiyanto, Danang Palit, Wilthy Clinton Freinadementz Pranjoto, Hartono Puspitasari, Nathania Putro, Jindrayani Nyoo R.S., Dwi Hadidjaja Rachman, Riza Rahmawati, Dyna Robik Anwar Dani Santoso, L. M. Hadi Santoso, Shella Permatasari Silviyanti, Nurul Amalia Sitepu, Rasional Soejono Tjitro Suhesti, Endang Suratno Lourentius Suratno Lourentius Suryadi Ismadji Suryadi Ismadji Suseno, Thomas Putut Indarto Syahrorini, Syamsudduha Theodorus Sandy Fangidae Thomas Indarto Putut Suseno Thomas Morus Papo Bage Tri Ngudi Wiyatno U.N, Dewi Handayani Velma Nindita, Velma Wardhani, Rinda Wenny Irawaty Wijaya, Christian Julius Yohanes Sudaryanto Yuliana, Maria Yunita, Theresia Laurensia