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All Journal Science and Physics Education Journal (SPEJ) Indonesian Mining Journal Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming JURNAL USM LAW REVIEW Automotive Experiences Andalas Journal of Electrical and Electronic Engineering Technology International Journal of Engineering Continuity Jurnal Komputer dan Elektro Sains SmartComp Jurnal Penelitian Teknologi Informasi dan Sains Clean Energy and Smart Technology
Sesotyo, Priyo Adi
Universitas Semarang
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences

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Performance and Fuel Consumption of Diesel Engine Fueled by Diesel Fuel and Waste Plastic Oil Blends: An Experimental Investigation Sunaryo Sunaryo; Priyo Adi Sesotyo; Eqwar Saputra; Agus Pulung Sasmito
Automotive Experiences Vol. 4 No. 1 (2021)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (634.872 KB) | DOI: 10.31603/ae.3692

Abstract

This study analyzes the performance of the diesel engine in terms of power, torque, specific fuel consumption, and thermal efficiency using diesel and pyrolysis oil. The waste plastic oil (WPO) used in this research was produced through a pyrolysis process using raw materials from Low-density Polyethylene (LDPE) mixed with diesel fuel in volume ratios WPO10, WPO20, WPO30, WPO40, and WPO50. In addition, a performance test was carried out on the single-cylinder diesel engine test bench. The results showed that performing the diesel engine with the addition of WPO increased the average power and torque by 5% and 3%, thereby producing a higher heating value. Furthermore, the concentration of WPO also reduces the level of specific fuel consumption to be more efficient, with a decrease in thermal efficiency. In conclusion, plastic waste pyrolysis oil is a promising alternative fuel applicable to a diesel engine.
ANALYSIS OF POTENTIAL ENERGY AND ENVIRONMENTAL IMPACT FROM COAL GASIFICATION THROUGH SIMULATION OF PLASMA GASIFICATION PROCESS OF INDONESIAN LOW-RANK COAL Priyo Adi Sesotyo; Muhammad Nur; Oki Muraza
Indonesian Mining Journal Vol 24, No 1 (2021): INDONESIAN MINING JOURNAL, Vol. 24 No. 1, April 2021
Publisher : Puslitbang tekMIRA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30556/imj.Vol24.No1.2021.1192

Abstract

Indonesia's coal reserve is abundant with its lower price and widely distributed than oil and natural gas. However, the coal emits high carbon dioxide gas (CO2) and sulfur compounds (H2S, SOx) to the environment during utilization. Plasma gasification can overcome those lacks using the external electric energy through a plasma torch. The chemical properties of coal have impacts on the energy content and environmental benchmarking. Using steam as a gasifying agent should be adequate to produce H2 and CO syngas. A research has been carried out to analyze and understand the benefit of using different gasifying agent for maximizing the H2 production and minimizing the environmental impact. Pure Steam (PS) gasifying agent to coal ratio of 0.4 has shown 43.76% H2 composition in syngas and cold gasification efficiency (CGE) with 37.71%. The PS to coal ratio of 0.2 has a significant carbon conversion efficiency of 4.75% and the PS to coal ratio of 0.6 has a gross energy potential of 86.5 kW. Using such the PS is significantly better than the mixture of steam oxygen (SO) as the gasifying agent since it needs to have a greater SO flow rate to have the SO to coal ratio of 1.00.
Pengaplikasian Praktek Layouting Kabel Multicore Fiber Optik Pada SMK NU Hasyim Asyari di Tarub Tegal Ardina, Elfira Nureza; Erlinasari, Ir.; Sesotyo, Priyo Adi
Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Vol 7, No 1 (2024): Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstormin
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/japhb.v7i1.6254

Abstract

Perkembangan media transmisi sangat pengaruh di dunia telekomunikasi. Beberapa jenis transmisi yang digunakan untuk mengirimkan sinyal telekomunikasi yaitu transmisi fisik dan non fisik, untuk transmisi non fisik memiliki banyak kekurangan karena rentan terhadap dengan interferensi saat pengiriman sinyal, selain non fisik ada juga media transmisi fisik seperti kabel tembaga memiliki kelemahan tidak dapat mengirimkan sinyal dalam bentuk sinyal cahaya, untuk kapasitas bandwithnya sangat kecil dan saat pengiriman sinyal telekomunikasi kabel tembaga rentan terpengaruh oleh gangguan frekuensi listrik dan radio. Oleh karena itu pada sistem pengiriman sinyal memiliki solusi dimana transmisi fisik berupa kabel fiber optik. Fiber optik telah digunakan dibeberapa dunia perindustrian, tetapi untuk sistem pengaplikasian kabel fiber optik di dunia pendidikan masih sangat sedikit untuk penjelasannya terutama pada sekolah tingkat SMK yang mempelajari ilmu dibidang telekomunikasi. Pada sebuah sekolah di daerah Tegal seperti SMK NU Hasyim Asyari berharap siswa dan siswi tersebut dapat mengaplikasikan perkembangan sistem telekomunikasi terutama pada transmisi fiber optik secara teori maupun praktek di kelas industri. Oleh karena itu telah dilakukan pengabdian kepada masyarakat untuk pengaplikasianlayouting kabel multicore fiber optik pada SMK NU Hasyim Asyari. Pengabdian kepada masyarakat memiliki tujuan agar siswa dan siswi SMK NU Hasyim Asyari pengaplikasian secara langsung cara layouting kabel multicore pada fiber optik yang selama ini dilakukan oleh beberapa provider. Pengaplikasianlayouting kabel multicore fiber optik ini berupaya untuk memberikan pengetahuan kepada siswa dan siswi SMK NU Hasyim Asyari tentang perkembangan media transmisi fisik dunia industri telekomunikasi dan pengaplikasian perangkat fiber optik secara langsung. Selain itu dapat menambah ilmu pengetahuan tentang fiber optik terhadap para pengajar sekolah SMK NU Hasyim Asyari di Tarub Tegal.
Studying the Absorption Refrigeration System powered by Thermal Waste and Electricity Conversion from Photovoltaic Priyo Adi Sesotyo; Sunaryo Sunaryo; Zainal Arifin; Puji Basuki
Clean Energy and Smart Technology Vol. 1 No. 1 (2022): October
Publisher : Nacreva Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58641/cest.v1i1.3

Abstract

Currently, buildings are responsible for 32% of the world’s energy consumption, with the most massive energy-consuming device in facilities being the refrigeration system. Photovoltaic is an alternative source of energy without causing environmental damage. Solar Refrigeration is an attractive solution because when there is much solar radiation, peak thermal energy is generated, and a lot of cooling capacity is needed. In this research, the amount of PV modules used as the LiBr-H2O Absorption Refrigeration System’s primary energy source is investigated. PV modules have a dual function, namely as a producer of electric power and producing thermal waste, both of which can be used as energy sources to drive this refrigeration system. In this thermal waste, two thermal sources, namely thermal convection and thermal radiation, accumulate to activate heat exchange at the LiBr-H2O absorption refrigeration system’s generator side. For electrical power from the PV module, it is used to run the air heater to increase the temperature until it reaches the optimum point for hot water supply between 65 to 70 oC. The results are that at least 100 modules of 100Wp Monocrystalline PV Module are needed to drive the LiBr-H2O absorption refrigeration system. Still, it is limited to 15.00, after which the energy source is switched back to electricity from PLN because, after 15.00, many PV modules are required and takes up a large enough space.
Optimized High-Gain DC-DC Converter for PV Applications Harmini, Harmini; Titik Nurhayati; Supari; Priyo Adi Sesotyo; Satria Pinandita; Ery Sadewa
Andalas Journal of Electrical and Electronic Engineering Technology Vol. 5 No. 2 (2025): November 2025
Publisher : Electrical Engineering Dept, Engineering Faculty, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/ajeeet.v5i2.179

Abstract

Photovoltaic (PV) systems frequently encounter low and fluctuating output voltages, which can significantly impede efficient energy utilization and necessitate more advanced power conversion solutions. Addressing this challenge, the study aims to develop a high-gain DC-DC converter topology that offers stable voltage regulation, making it suitable for PV applications. The proposed solution targets the essential need for substantial voltage boosting while maintaining reliable performance even under varying solar irradiance conditions. The core of the design is based on a Quadratic Boost Converter (QBC) integrated with Voltage Multiplier Cells (VMC), collectively referred to as QBC-VMC. This innovative configuration enhances the voltage gain capability compared to traditional converters. To ensure precise control of the output voltage, a Proportional-Integral (PI) controller is implemented. The system undergoes thorough analysis, including detailed modeling, simulation, and the design of its control structure, to optimize performance. The results demonstrate that the proposed converter can achieve a voltage gain of up to 12 times the input voltage. The PI controller effectively maintains a stable output voltage at approximately 600 V with a tolerable variation of ±0.7%. Additionally, the system exhibits an energy conversion efficiency approaching 81%, even under fluctuating irradiance conditions. This indicates a strong dynamic response and steady-state performance, essential for reliable PV operation. By integrating QBC-VMC with PI control, the proposed approach significantly enhances voltage stability and energy conversion efficiency. Overall, this system provides a promising solution for high-performance PV power systems, capable of delivering reliable power output under varying environmental conditions.
Evaluating the Damage Cost of Vehicle to Grid Integration in Indonesia Power Grid for Sustainable Energy System Priyo Adi Sesotyo
International Journal of Engineering Continuity Vol. 4 No. 1 (2025): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v4i1.368

Abstract

The cost incurred in the EV Charging is currently only from the energy consumed consideration. While there is extensive research on the impact of EV charging on grid infrastructure and operation, few studies quantify these effects in terms of explicit 'damage costs'. However, besides energy problems, the analysis of the environmental impact of EVs has not been quantified monetarily. This paper aimed to investigate the damage cost (DC) of EVs in comparison with Battery Electric Vehicles (BEVs) and Plug-in Hybrid Electric Vehicles (PHEVs) based on Indonesia Java Bali's grid conditions. Using the existing data in Indonesia, the characterisation parameter were determined using cradle-to-gate life cycle analysis (LCA) and ReCiPe 2016 then converting the endpoint indicators impacts to DC using a monetary weight factor (MWF) of those two EVs. Cradle to gate LCA is a method for evaluating the environmental impact of battery from the extraction of raw material to the factory gate and ReCiPe 2016 is a widely used of LCA method, which converts emission and resources extraction into certain indicators. Results show that DC for a 20 kWh BEV = 0.12 ± 0.01 USD/kWh compared to an 8 kWh PHEV = 0.08 ± 0.005 USD/kWh. Therefore, the DC of an extra 0.02 USD/kWh for BEVs and 0.015 USD/kWh for PHEVs should be considered in formulating the EV charging tariff.
Evaluating of DC-DC Buck-Boost Converter implementation for Integrated Solar Photovoltaic and Thermoelectric Cooler System Priyo Adi Sesotyo; La Ode Muhamad Idris; Taufik Dwi Cahyono; Ery Sadewa
International Journal of Engineering Continuity Vol. 4 No. 1 (2025): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v4i1.372

Abstract

The growing demand for compact, efficient, and eco friendly cooling solutions has driven research into integrating thermoelectric coolers (TECs) with solar photovoltaic (PV) systems, where solar irradiance variability impacts cooling efficacy and energy efficiency. This challenge is addressed using DC-DC Buck-Boost converters whose performance is heavily influenced by control strategies such as Proportional Integral Derivative (PID) controllers employing tuning approaches that balance performance and prioritize disturbance rejection. This study investigates the implementation and performance of a DC-DC buck-boost converter in a solar photovoltaic and thermoelectric cooling (PV-TEC) system. Simulation-based analysis compared tuning methods for their ability to maintain thermal stability, reduce electrical input fluctuations, and enhance the TEC's Coefficient of Performance (COP). Results show that the PID controller significantly improves responsiveness and energy efficiency in dynamic solar conditions, achieving a 23% reduction in power consumption and a 36% increase in COP, highlighting the importance of adaptive control strategies.
Performance Analysis of an Integrated PV/T–TEC System with a PID enabled DC–DC Boost Converter for Photovoltaic Thermal Management Priyo Adi Sesotyo; La Ode Muhamad Idris; Taufik Dwi Cahyono; Ery Sadewa
International Journal of Engineering Continuity Vol. 4 No. 2 (2025): ijec
Publisher : Sultan Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58291/ijec.v4i2.450

Abstract

The temperature-induced efficiency loss of 0.4% to 0.5% for every °C above 25 °C alongside the inherent variability in solar irradiance, poses a critical challenge to the efficiency and stability of Photovoltaic (PV) modules. This study addresses this limitation by developing and analyzing an Integrated Photovoltaic Thermal-Thermoelectric Cooler (PV/T–TEC) system designed for robust thermal management and enhanced energy yield. The proposed system utilizes a synergistic hybrid cooling mechanism: a passive PV/T air collector for bulk heat dissipation from the PV panel's rear surface, coupled with an active Thermoelectric Cooler (TEC) for precise temperature stabilization. The electrical energy flow is managed by a DC–DC Boost Converter employing a PID controller, with a focus on input disturbance rejection, ensuring the TEC operates at an optimal, stable power point.Simulation and performance analysis demonstrate the significant advantages of this hybridized approach. The PV/T air collector was confirmed as the primary thermal component, achieving a peak heat dissipation QEmit approximately 7.5 times greater than the TEC-only configuration. This strategic pre-cooling successfully stabilizes the TEC's hot-side temperature, enabling the TEC to operate with a low operational temperature differential ∆T and resulting in an exceptionally high calculated Effective System Coefficient of Performance COP peaking at 14.5. The system maintains a stable operating point during peak solar radiation, maximizing the Net Electrical Power Gain. In conclusion, the integration of passive PV/T cooling, active TEC cooling, and a PID-enabled DC–DC Boost Converter provides an exceptionally efficient and stable solution for PV thermal management. The research strongly supports the efficacy of this hybrid system for significantly improving the overall energy efficiency and sustainability of solar energy applications.
EKSTRAKSI CIRI CITRA BENTUK SEL DARAH MERAH MENGGUNAKAN METODE MORFOLOGI ISYA ARYAN SULISTYO; PRIYO ADI SESOTYO; TAUFIQ DWI CAHYONNO
Smart Comp :Jurnalnya Orang Pintar Komputer Vol 14, No 4 (2025): Smart Comp: Jurnalnya Orang Pintar Komputer
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/smartcomp.v14i4.7372

Abstract

Proses pengenalan objek dalam citra umumnya membutuhkan suatu ciri yang dapat membedakan antara objek satu dengan objek yang lainnya dan bentuk dari sel darah. Ciri yang dapat diekstraksi diantara lain ciri ukuran (luasan dan keliling) dan posisi (koordinat sentroid) dari suatu objek. Sentroid merupakan koordinat titik tengah dari suatu objek, luasan merupakan banyaknya piksel yang menyusun pada objek. Sedangkan keliling merupakan banyaknya piksel yang berada pada objek batas. Ketiga sel darah tersebut memiliki bentuk yang berbeda. Eritrosit memiliki bentuk pipih seperti cakram bikonkaf dengan diameter 7,5 µm memiliki ketebalan 2 µm dan tidak berinti, sedangkan untuk leukosit mempunyai satu inti sel dan berbentuk tidak tetap memiliki ukuran 8-15 µm. Keping darah memiliki ciri dan bentuk yang berbeda dari eritrosit dan leukosit, trombosit memiliki yang paling terkecil berukuran 2 µm memiliki bentuk tidak beraturan salah satunya berbentuk lonjong, trombosit terdiri dari kepingan-kepingan darah yang memiliki Nukleus. Dari hasil pengenalan tersebut maka akan diketahui sebuah ciri tersendiri diantaranya dalam tahapan pengenalan pola, operasi morfologi disini digunakan untuk pengenalan bentuk dari sebuah objek dan dapat diberi label berdasarkan bentuk dan ukuran.
Evaluasi Efisiensi Konsumsi Energi Listrik Berbasis Analisis Demand Factor pada Sistem Distribusi Kelistrikan Industri PT Semen Grobogan Dyna Maharani; Harmini -; Priyo Adi Sesotyo; Elfira Nureza Ardina
Smart Comp :Jurnalnya Orang Pintar Komputer Vol 15, No 3 (2026): Smart Comp: Jurnalnya Orang Pintar Komputer
Publisher : Politeknik Harapan Bersama

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/smartcomp.v15i3.10356

Abstract

Kebutuhan energi listrik pada sektor industri meningkat seiring dengan ekspansi kapasitas produksi dan penggunaan peralatan berdaya besar. Kondisi ini menuntut pengelolaan sistem kelistrikan yang efisien agar kapasitas daya terpasang dapat dimanfaatkan secara optimal. PT Semen Grobogan sebagai industri semen berskala besar dengan kapasitas produksi sebesar 2,5 juta ton per tahun memiliki sistem kelistrikan dengan kapasitas terpasang sebesar 40 MVA yang disuplai oleh PLN dan di bagi pada trafo 1 dan trafo 2. Penelitian ini bertujuan untuk mengkaji efisiensi pemanfaatan energi listrik pada instalasi kelistrikan PT Semen Grobogan melalui analisis demand factor. Metode penelitian ini meliputi pengukuran dan pencatatan beban listrik pada sistem distribusi, perhitungan beban maksimum, serta analisis nilai demand factor pada masing-masing transformator selama periode Mei-Juli 2025. Hasil analisis menunjukkan bahwa nilai demand factor pada trafo 1 dan trafo 2 berada pada kisaran 72%-76% dengan variasi antar bulan yang relatif kecil. Secara global, demand factor sistem berada pada kisaran 73%-74% terhadap kapasitas terpasang 40 MVA. Nilai tersebut menunjukkan bahwa kapasitas yang terpasang telah dimanfaatkan secara efisien dan masih berada dalam batas operasi yang aman bagi sistem kelistrikan industri. Hasil penelitian ini menegaskan bahwa analisis demand factor dapat digunakan sebagai indikator evaluasi pemanfaatan kapasitas sistem kelistrikan dan sebagai dasar pengelolaan beban untuk menjaga stabilitas dan keandalan operasi industri.
Co-Authors Agus Pulung Sasmito Ardina, Elfira Nureza Ari Endang Jayati Dyna Maharani Elfira Nureza Ardina Erlinasari, Ir. Ery Sadewa Ery Sadewa Fahrudin Ahmad Harmini, Harmini Harmini, Harmini Isya’ Aryan Sulistyo La Ode Muhamad Idris Moch Hikmah Risky Kurniawan Muhammad Ali Akbar Sholahuddin Muhammad Nur Muhammad Rivel Zebertavio Muhammad Wildan Salama Nihayatur Rohmah Oki Muraza Puji Basuki Puri Muliandhi Rahmadinda Wahyu Gizela Ridwan Agung Maulana Saputra, Eqwar Sasmito, Agus Pulung Satria Pinandita Sunaryo Supari Taufik Dwi Cahyono TAUFIQ DWI CAHYONNO Titik Nurhayati Zainal Arifin