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R.E.M (Rekyasa Energi Manufaktur) Jurnal
Published by Universitas Muhammadiyah Sidoarjo
ISSN : 25275674     EISSN : 25283723     DOI : https://doi.org/10.21070/r.e.m
Core Subject : Engineering,
Engineering
Focus and Scope Aim: to facilitate scholar, researchers, and teachers for publishing the original articles of review articles. Scope: Mechanical Engineering include: Energy Conversion Renewable Energy Manufacturing Materials and Design Engineering Mechatronics
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 7 Documents
 1 
Search results for , issue "Vol 8 No 2 (2023): December" : 7 Documents clear
The Analysis of the Effect of Bore Up Variation on Engine Performance Widodo, Edi; Arbiantara, Difta; Iswanto
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1641

Abstract

The purpose of this study was to determine the power, torque and fuel consumption of a Kawasaki Athlete motorcycle engine with a standard engine comparison, bore up of 0.50 mm, bore up of 1.00 mm, and bore up of 1.50 mm. The testing process uses a dynotes engine. With Pertamax fuel type. From the results of research that has been done, the performance has increased compared to the performance on a standard engine. The highest power is found in the 1.50 mm bore up variation of 10,2 Hp, the lowest power is found in the standard engine of 3,5 Hp. The highest torque is found in the 1.50 mm bore up variation of 10,31 N.m, the lowest torque is found in the standard engine of 3,40 N.m. For fuel consumption in each variation of the bore up has increased.
Effect of Vacuum on Evaporation of Seawater Yusuf, Ahmad Maulana; Dan Mugisidi; Ikbal Prasetiyo Aji; Oktarina Heriyani
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1672

Abstract

Water has become a vital necessity for every living organism to survive, leading to a threefold increase in global freshwater usage over the past 50 years. However, only 2.8% of the Earth's surface water is freshwater, while the rest is seawater. Therefore, seawater is processed into clean freshwater through desalination methods to make it consumable for the public. The desalination process involves two stages: evaporation and condensation aided by heat energy from a heater plate and a vacuum system. The use of vacuum in the desalination device aims to accelerate evaporation. In this study, three vacuum pressure variables were tested, namely no vacuum, 1 inHg vacuum pressure, and 2 inHg vacuum pressure. Data will be collected every 5 minutes for a total duration of 30 minutes for each variable. The research findings indicate that desalination using a vacuum system significantly affects the evaporation rate and the amount of freshwater obtained from the condensation process.
Thermodynamic Analysis of Hydrogen Production from Hydrogen Sulfide in Geothermal Power Plant by using Fe-Cl Hybrid Indirect Electrolysis Fadhilla, Putri; Udi Harmoko; Marcelinus Christwardana
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1679

Abstract

Clean and sustainable energy sources are needed to meet global energy demand. Geothermal Power Plants (GPPs) may generate power from Earth's heat. However, GPPs release hazardous hydrogen sulfide (H2S) gas. To overcome this problem and maximize on resource potential, researchers have investigated converting GPP-emitted H2S into hydrogen (H2). The Fe-Cl hybrid indirect electrolysis technique is used to analyze the thermodynamics of hydrogen synthesis from H2S in GPPs. Electrolysis electricity, hydrogen generation rate, and electrolyzer energy and exergy efficiency are examined in the thermodynamic analysis. The foundation parameters show that the electrolysis process uses 20.57 kWh of power every kilogram of H2 generated. Energy and exergy efficiencies of the electrolyzer are 89.89% and 97.72%, respectively, exhibiting system efficiency. The research also examines how H2S mass flow rate and electrolysis temperature affect energy efficiency, exergy efficiency, and power consumption. Optimizing hydrogen generation and system performance requires these elements. This study analyzes the thermodynamics of hydrogen synthesis from H2S in GPPs to create sustainable and ecologically friendly energy options. H2S emissions from GPPs might be used to efficiently produce hydrogen as a renewable energy source with more research.
Analysis of the Effects of Variable Food Packaging Seals on Tensile Test Results for PET, LDPE, and Aluminum Foil Composite Materials Ridwan; Rizki Aulia Nanda; khoirudin, Khoirudin; sukarman, Sukarman
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1673

Abstract

This article features experimental findings on the tensile testing procedure conducted on package seals made from Polyethylene Terephthalate (PET)-Low-Density Polyethylene (LDPE)-Aluminum Foil composite materials commonly employed in food packaging applications. This study aims to ascertain the outcomes of the tensile test or tensile strength of the packaging seal utilizing the Auto Tensile Tester XLW according to the ASTM F88 standards. The tensile test involves using two types of variables: independent variables and dependent variables. The study used temperature (°C) and holding time (s) as independent factors, whereas the dependent variable is the tensile test results or tensile strength (N/mm2). This study utilized identical parameters for each variable. The specimen's measurements were 15mm x 25mm. This experiment included three temperature factors and a constant holding time of 1 second. Every parameter underwent four tests, resulting in twelve test samples. Based on the findings, the optimal temperature range for achieving the most efficient packing sealing was 135oC. The maximum sealing strength of 17.50 N/mm2 was attained within this temperature range, and the outcomes were influenced by both the temperature and the duration of the holding period. Each sample has distinct values, encompassing a rather narrow range.
Characteristics of Waste Briquettes Hazelnut Shells with Glutinous Rice Adhesive Ahmad Akromul Huda; Muliatiningsih; Fathoni, Ahmad; Karyanik
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1675

Abstract

The energy crisis is increasingly felt starting from the scarcity of petroleum and gas fuels plus the increasingly expensive price makes it necessary to make efforts to obtain alternative renewable energy. One of the biomass materials that can be used as briquettes is hazelnut shells because in some observations in the field hazelnut shells tend to be discarded after taking the meat. The purpose of this study was to determine the differences in the characteristics of briquettes produced such as moisture content, calorific value, ash content influenced by the type of adhesive derived from glutinous rice so as to obtain the ideal formulation for making briquettes from hazelnut shells. This study used a complete randomised design (CRD) with variations in glutinous rice flour concentration of 20%, 30%, and 40%. The results showed that the concentration of the adhesive used was not significantly different from the value of water content, ash content and calorific value produced. The best quality briquettes were at 40% adhesive percentage, with a calorific value of 5321 cal/gr, 7.2% moisture content, and 5.1% ash content. Pecan shell briquettes with rice flour adhesive are in accordance with the Indonesian national standard (SNI) both from the value of water content, ash content and calorific value.
Potential of Nano Hidroxyapatite in Dental Implants Riza Muharni
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1680

Abstract

Hidroksiapatit {Ca10 [PO4]6[OH]2 } adalah kristal kalsium fospat yang terdapat pada matriks ekstraseluler jaringan tulang dan disintesis sebagai material pelapis implan khususnya Titanium. Material sintetik hidroksiapatit ini bersifat osteokonduktif yang dapat menstimulasi pembentukan jaringan baru pada mekanisme perbaikan tulang. Paduan Ttanium digunakan sebagai implan dan kawat gigi dalam kedokteran gigi karena memiliki sifat biokompabilitas yang baik. Ketika Titanium ditanamkan dalam tulang, jaringan sekitar akan bereaksi dan kekuatan ikatan tulang besar. Pemasangan implan gigi berbahan dasar Titanium mengaktivasi sistem imun yang menimbulkan reaksi antara host dan hidroksiapatit. Hidroksiapatit didesain dalam bentuk komposit dan polimer yang terdiri dari bahan organik dan inorganik serta kitosan sehingga hidroksiapatit tidak beracun dan tidak carcinogen. Untuk membuktikan hal tersebut peneliti membahas tentang Potensi Hidroksiapatit Nano Pada Dental Implan yang bertujuan untuk mengetahui komposisi kimia larutan dalam air ludah buatan setelah perendaman dengan menggunakan XRF (X-Ray Flourescences). Hasilnya didapat unsur tertinggi Mg sebesar 55,850 % dan unsur terendah Ti sebesar 0,035 %. Hal ini menunjukkan tidak terdapat unsur yang membahayakan tubuh.
Design of a PLC Based Temperature Controlled System AMOSUN, TAIWO; Wasiu Oyediran Adedeji
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 8 No 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v8i2.1683

Abstract

Temperature control plays a critical role in various industrial applications, ensuring optimal process efficiency, product quality, and output. The programmable logic controller (PLC) has emerged as a versatile tool for implementing temperature control systems due to its advanced capabilities in computer control, communication, and automation. This work presents an approach for designing a temperature control systems using Programmable logic controller (PLC). The system employs thermostats, which is a form of temperature sensor to detect and convert temperature values into voltage signals, which are then processed by the PLC through ladder algorithms. The temperature status of the thermostats is used to switch OFF or ON electric heaters in a bid to reduce or increase the temperature of a system. The PLC technology enables continuous monitoring and control of temperature, ensuring precise regulation in industrial settings such as material processing, boiler heating, and kiln operations. Additionally, the paper highlights the advantages of PLC-based temperature control systems, including high efficiency, stability, precision, and remote monitoring capabilities. The findings suggest that PLC-based temperature control systems offer promising solutions for achieving reliable and effective temperature management in diverse industrial environments.

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