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Sinergi
Published by Universitas Mercu Buana
ISSN : 14102331     EISSN : 24601217     DOI : https://dx.doi.org/10.22441/sinergi
Core Subject : Engineering,
Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering
SINERGI is a peer-reviewed international journal published three times a year in February, June, and October. The journal is published by Faculty of Engineering, Universitas Mercu Buana. Each publication contains articles comprising high quality theoretical and empirical original research papers, review papers, and literature reviews that are closely related to the fields of Engineering (Mechanical, Electrical, Industrial, Civil, and Architecture). The theme of the paper is focused on new industrial applications and energy development that synergize with global, green and sustainable technologies. The journal registered in the CrossRef system with Digital Object Identifier (DOI). The journal has been indexed by Google Scholar, DOAJ, BASE, and EBSCO.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 15 Documents
 1   2 
Search results for , issue "Vol 26, No 3 (2022)" : 15 Documents clear
A proposed conceptual framework of supply chain operations reference (SCOR) model in Indonesian industries: a literature review Antonius Setyadi; Erry Rimawan; Ivan Kristanto; Puspita Eka Rohmah
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.014

Abstract

This article uses the approach of a literature review study sourced from previous research and relevant to this research, namely the Supply Chain Operations Reference model. The phenomenon is that previous studies have not reviewed the Supply Chain Operations Reference (SCOR) model as an interesting thing to study in collaboration with other methods in a structured way. This study aims to give a proposed framework of the SCOR model as a reference for detailed information related to the SCOR model in Indonesia's retail, manufacturing, and service industries. The results of the paper are the year of publication for the 50 articles reviewed consists of 2018-2021 for the country of Indonesia. The research object consists of 3 objects, namely the retail, manufacturing, and service industries. Most supply chain performance levels in Indonesia are in a good category. Most of the research variables majority of the five variables often used in the SCOR model: plan, source, make, deliver, and return. The performance attribute priority that needs to be improved is the reliability attribute. The method used by previous research is 17 methods. This method can be used as an illustration to see how the SCOR model can collaborate with other methods. The paper's conclusion is the research proposed framework regarding the application of the SCOR model that can be collaborated with other methods.
Effects of bio-oil - diesel blends: the performance and emissions of diesel engines with intake manifold variations Farid Majedi; Agus Choirul Arifin; Alfi Tranggono Agus Salim; Agus Ma’ruf Prasetya
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.005

Abstract

Alternative fuels such as vegetable oil, biodiesel, and bio-oil are potential alternatives for diesel engines. Bio-oil is one of the products of the decomposition process of chemical and organic matter by adding heating process without oxygen is called rapid pyrolysis. Bio-oil in the pyrolysis process is made from Brem waste. Brem is a typical food from the district of Madiun, Indonesia. This research is important because the switch from petroleum-sourced fuel to Bio-Oil oil cannot be automatically applied to diesel engines. Spray quality and combustion process, type and quality of fuel, and engine design and condition are some of the important parameters affecting diesel engine performance. Research data is very important because it can determine the intake manifold and the best bio-oil-diesel blends to be used in the operation of diesel engines with bio-oil-diesel blends. The research uses three variations of the intake manifold form. Variations of research with lamp loading of 650, 1300, 1950 and 2600 watts determine specific power and fuel consumption. Use an opacity smoke meter to determine the opacity of diesel engine exhaust gases. The fuel used is pure diesel fuel and Bio-Oil fuel B10, B15, and B20 resulting from the pyrolysis of Brem waste with a fuel volume of 25 ml for each research variable. The results of testing the intake manifold variation and the bio-oil-diesel blended are the intake manifold variation 1  with a fuel mixture variation of 20 % Bio-Oil - 80% pure diesel (B20), which has the best results both electric power, specific fuel consumption and opacity.
Traffic performance analysis of unsignalized intersection using the Traffic Conflict Parameter technique Muhammad Isradi; Zainal Arifin; Muhammad Ikhsan Setiawan; Ronny Durrotun Nasihien; Joewono Prasetijo
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.015

Abstract

The unsignaled intersection of Jalan H Djole – Jalan Pasar Lama in Bekasi City is a densely populated commercial area with high economic activity. The lack of facilities and infrastructure that causes traffic jams at the intersection also raises the potential for conflict. This study aims to analyze the level of service, the type of conflict, and the traffic conflict complexity at an unsignaled intersection. The field survey method obtains primary data on the conflict approach and traffic volume. The analysis showed that the highest traffic volume was 3,810 passenger cars unit/hour with a DS value of 1.06 and LOS F. The number of conflicts that occurred during one hour of observation at peak hours was 420. Most of the conflicts that arose were straight-right, turned movements of 138.
Analysis of Welding Procedure Specifications for steel line pipe material Rudi Suhradi Rachmat; Lydia Anggraini; Wandesmoni Sihotang; Kei Ameyama
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.002

Abstract

This study proposes the welding process steel line pipe material of API5L Grade X52 diameter Ø8 inch SCH80 type, subjected to the good quality of the product by following the Welding Procedure Specifications (WPS). The purpose of welding using WPS is to ensure that the welding process follows the correct stages because the steps are proper. The weld results will be free from defects and safe for line pipes. In order to confirm the WPS quality, the characterisations of macrostructure, microstructure, and mechanical properties were analysed. The welding process results by following the procedure specifications, from macrostructure shown no porosity, and sample without following the welding procedure specifications shown porosity at weld metal position. The tensile test sample following the welding procedure specifications showed high strength and ductility compared with the samples without welding procedure specifications. This phenomenon occurs due to the grain size of the martensitic structure and a little bit of growth compared with a sample without following the welding procedure specifications. Furthermore, the bending test result shows that both samples have no crack at the weld metal position. 
A conceptual model for energy management in the steel industry: A Soft System Methodology (SSM) approach Muhammad Ibrahim Ats-Tsauri; Bagus Wilarnugroho; Humiras Hardi Purba
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.007

Abstract

This paper aims to use Soft Systems Methodology (SSM) to develop the steel industry's energy management framework. It proposes a soft system approach to analyze the complex situation of developing a support system for energy management. This approach consists of identifying the system scope, discovering underlying problems within, deriving a conceptual model from the complex situation, and identifying possible actors and activities to bring the conceptual model closer to reality. The identified activities could serve as a guideline for designing and developing an effective energy management framework in the steel industry. The result might also be further developed to drive the feasible, desirable changes into real implementation strategies and action plans. Currently, there is very limited SSM academic research in energy management. Hence the researchers sincerely hope that this study might help to drive the SSM methodology application in this field, in conjunction with the body of knowledge of Industrial and Systems Engineering (IISE).
Study of power and voltage delivery after successfully black-start Andika Pradnya Satriawan; Saidah Saidah; Taufik Taufik
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.011

Abstract

Efforts to maintain the continuity of electricity distribution to customers and reduce the amount of Energy Not Distributed (END) are to speed up the recovery process due to disturbances in the electricity distribution system, especially blackouts. The strategy to speed up recovery in a total blackout is to do a black-start on a generator unit with a black-start facility and send voltage to a larger generator unit. At the Grati-Paiton Substation, the generator that has black-start facilities is the Grati Gas Steam Power Plant (GSPP). The delivery of power and voltage from the Grati-Paiton substation is required after the Grati GSPP successfully black-start. Study optimal power flow simulation in distributing power and voltage using DigSILENT software. Based on the simulation results, several schemes are used to distribute power and voltage from the Grati-Paiton substation within the generator’s Mvar. As a result, the voltage during the distribution process meets the criteria according to the Grid. The most optimal scheme is with the least number of stages, the production of Mvar, which is still safe for power generation, and the voltage at the end of the Paiton substation still meets the nominal voltage according to the Grid. 
Experimental study on the performance of multi-layered bulletproof vest Azhari Sastranegara; Edmun Halawa; Lydia Anggraini
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.003

Abstract

A bulletproof vest should have high strength and durability to resist a bullet as vital war equipment. However, the cost of creating good quality bulletproof vest is expensive. Therefore, research about an alternative bulletproof vest with affordable cost and competitive quality is needed. This research aims to review and compare two alternative vest types with one commercial type IV vest. Both alternative vests have similar components, except the second one has an additional Ultra High Molecular Weight Polyethylene (UHMWPE) component. The ballistic test shows that alternative vests are still not enough to resist a 5.56 mm bullet, but it has the potency to handle a 9 mm bullet. Furthermore, the influence of UHMWPE to resist 9 mm bullets is shown in this research.
Product Design Development of Three-In-One Tote Bag Using The Kansei Engineering Method Yuda Paripurna; Hari Purnomo
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.008

Abstract

The existing tote bag designs are often open at the top and vulnerable to pickpockets. Straps cannot be adjusted in length. Narrow straps, size, and the weight of their bags are causing pain. This study aims to develop a multifunctional tote bag to meet consumer needs to make it easier to carry goods of various sizes using only one bag. The population in this research is women and tote bag users who live in Tuban, East Java. The sample in this study was 30 tote bag users determined using a purposive sampling technique with the criteria being tote bag users for at least one month and aged 16-45 years. The data collection tool in this study is the Google Form questionnaire. The method in this study uses Kansei Engineering. The data were analyzed by SPSS 26. The results 14 Kansei words represent consumer desires for product development of multifunctional tote bags and are grouped into four factors: function, appearance, impression, and capacity. The old tote bag design is different from the three-in-one tote bag design based on the results of the Wilcoxon signed-rank test with a significance value of 4 factors < 0.05. 
Finite Element Analysis (FEA) of blade weed design using Ansys workbench Angger Bagus Prasetiyo; Rizqi Prastowo; Kartinasari Ayuhikmatin Sekarjati; Anita Susiana; Ichwan Noor Ardiyat; Fajar Yulianto Prabowo; Iman Pradana A. Assagaf; Jemssy Ronald Rohi; Yonathan Ito
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.012

Abstract

Manual, semi-conventional, and conventional weed eradication are the three forms of weed eradication utilized. Farmers benefit greatly from the usage of weeding equipment in combating pests in the fields. The blade you use determines how successful you are at weeding. As a result, it is required to examine the weeding weeds blade. With a tetrahedral mesh, simulation utilizing the finite element analysis approach allows for the optimization of design, computation, and prediction of material strength. The goal of this research was to figure out how much von Mises's stress, deformation, and safety factor were worth. ANSYS Workbench software was used to simulate various loadings of 10N, 25N, and 50N. The highest von Mises stress created by simulation of modelling weed blades at 10N, 25N, and 50N loads is around 2.95x10-2 MPa, 7.38x10-2 MPa, and 0.14755 MPa, respectively. Each of the safety factors is 15, and the maximum deformation value is 4.26x10-7mm; 1.06x10-6mm; 2.13x10-6mm. The safety factor indicates that the weed weeding knife design is safe to use up to 50N loading.
Analysis of variance dimension of reinforcement to stress concentration factor using Finite Element Method Ali Ali; Diki Ismail Permana; Hermawan Nurfakhira Yudha
SINERGI Vol 26, No 3 (2022)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2022.3.004

Abstract

Stress concentration is a condition when stress increases only at a certain area of a component compared to the stress at the uniform cross-section of the component when given a load. This phenomenon can occur due to irregular geometry such as a hole, sharp angle, cross-section change, notch, threads, groove, crack, etc. Any change in geometric shape on a uniform cross section will cause a stress increases. High stress concentrations need to be reduced to prevent faster failure of a component. The stress concentration that occurs can be determined by using stress concentration factors (Kt). Using FEM method, the simulation obtained stress distribution that occurs in the shaft that is modelled, both without and with the additional groove. The results obtained by the additional of a semi-circular groove can reduce stress concentrations up to ten percent.

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