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JURNAL REKAYASA SISTEM INDUSTRI
Jurnal Rekayasa Sistem Industri (JRSI) terbit sebanyak dua kali dalam satu tahun (Mei dan November). Terhitung Mulai edisi Mei 2018 publikasi jurnal ini telah dilakukan versi online (ISSN 2621-1262) yang sebelumnya hanya berupa versi cetak (print) (ISSN 2477-2089). Publikasi ini bertujuan untuk menghimpun informasi seputar gagasan, teori dan aplikasi bidang keilmuan Teknik Industri dan Manufaktur.
Articles
20
Articles

Prasetyo, Rony

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

The focus of this research is to know factors causing production defects in the filling of oxygen gas in the process of filling storage tanks with specification 99.60% - 99.9% pure oxygen at PT. Samator. This study found several dominant factors that affect the quality of oxygen purity that has been set company. Production output samples were taken in november 2017 for 25 working days with replication system in group and sub group.The data feasibility test is expressed by the adequacy test and data uniformity to ensure that data is eligible for further processing. Data analysis on the calculation of process capability shows the value of Cp <1.33 means the ability of the process of filling the storage tank with 99.60% - 99.9% pure oxygen specification shows the ability is still low so that the quality of the product is in doubt.This result raises the suspicion of factors causing potential defect product as the cause of the low ability process, to know the cause of the low ability of process then fishbone diagram accompanied by chi square statistic test to validate the alleged defect of production find 6 dominant factor that is raw material of air and water content) , Employee Kopetensi, Standard operational procedures that have not been raw, machine maintenance, engine setup and temperature.

Nugroho, Adi

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

This study aims to determine the effect of variations in the welding current to tensile strength and hardness welding  SMAW with electrode E7016 on plate carbon steel ASTM A36 with a thickness 10 mm. large variations in use of welding current is  90 amps, 100 amps, 110 amps and 120 amps. This research was carried out by making spesiment test with the variation of welding current at 90 amperes, 100 amperes, 110 amperes and 120 amperes hereinafter spesiment test carried tensile testing and hardness to seek information influences that caused by the variation of welding current to the tensile strength and hardness of the welded joints. The results showed that the highest tensile strength (Ultimate Tensile Strength) were obtained on a sample of 110 amperes with value - average UTS at 467.78 MPa. While the highest hardness values obtained on a sample of 120 amperes with value - average in the region of 191 HV HAZ and in the region of 228 HV Weld metal.

Yanto, Fendri

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

This research is motivated by frequently  some employees in process wheelblasting and Spray in idle state. After analyzed, it can be identified that the amount of idle time is aused by the material transfer process (Soleplate) which is still done manually which takes 18.5 seconds per unit (bottleneck). the purpose of this study are: To determine whether the conveyor can reduce waiting time in the Steam Promoter line or not. In this study, the anthropometry method used to determine the height of the conveyor and Westinghouse method is used to determine the magnitude of the rating factor and the amount of allowance. The results of this research are: a) The most ideal conveyor height is 90cm b) standard time of manual transfer  (before improvement) is 28.55 seconds, c) standard transfer time using conveyor (after improvement)  is 17.43 seconds, d) The difference of Standard time using manual transport Vs using conveyor is 11,12 second, e) by using conveyor, waiting time can be reduced.

Meldra, Delia

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

Measure natural electric voltage at surface used Self-Potential method. Self-Potential one of the methods used to look at subsurface water flow. The negative or positive sign of potential is an important factor for the interpretation of Self-potential anomalies. The finite element technique is applied to model the velocity of water flow, current source, and potential value distribution in the form of  2-D profile. Finite element technique was chosen to solve the problem of boundary conditions and differential equations for Self-Potential modeling. Modeling current sources are obtained by intermediate gradient operation and water flow velocity . From the result of modeling, we get the value of water flow velocity between 10-6 - 10-4 m/s, current source, potential distribution, and potential response on the topography of the slope. Each topography produced different potential response forms, due to the electrokinetic effect. The water flow in the area with slopes topography often causes inundation due to inadequate absorption area, thus causing the grinding of the soil and destroying the road. From the results of this modeling is designed a good water absorption area using visio.

ANALISIS KUANTITATIF ACIDITY LEVEL SEBAGAI INDIKATOR KUALITAS AIR HUJAN DI KABUPATEN CILACAP

Satriawan, Dodi

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

Rain is one of the water sources for life on the earth. The presence of rain becomes very important for the life of plants and animals because it will meet their need for water. In addition to the quantity of rainwater, its quality becomes an important role for life on the earth. Contaminated rainwater will result in decreased rainwater quality. This contamination can be physical, chemical and biological. Physical factors that can make rainwater quality worse is the value of acidity level (pH). Low value of acidity levels can lead to acid rain which is dangerous for plants, animals and even humans. This research focuses on rainwater quality seen from its acidity level. It can see how the impact of industrial pollution that developed in Cilacap to the quality of rainwater produced. The method used in this study used an analysis method based on SNI 06-2413-1991 with the rainwater samples from 15 places in Cilacap. The analysis obtained from 15 samples shows that rainwater in Cilacap district has pH 4.5 – 7.6. The rainwater pH <5 occurs in Trenggiling, Manunggal, Karangtalun, and Kutawaru.

Surya, Alfin

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

Methanol extract Jengkol Skin (Pithecellobium jiringa) contains Flavonoid compounds that are thought to have potential as anticancer. This study aims to determine the activity of jengkol skin toxicity with maceration for 72 hours against shrimp larvae (Artemia salina) using Brine Shrimp Lethality Test (BSLT) method which has correlation in source of new anticancer compound, resulting in Median Lethal Concentration (LC50 ) for methanol solvent is 126 ppm.

Analisis Konsumsi Energi Karyawan Ketika Melakukan Olahraga Tenis: Studi Kasus Karyawan PT. Aker Solution Batam

Susanti, Elva, Sugianto, Welly, Azharman, Zefri

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

This study aims to find the level of energy consumption, CVR% and Boddy mass index through the pulse before and after sports. In calculation of CVR% there are 4 people needed improvement, 1 person must reduce the activity time so as not to injury while doing sports. In determining the heartbeat pulse (pulse) by testing the wilxocon turns out the higher heart rate before exercising, the higher the heart rate after exercise or vice versa. In addition, by doing chi square test between energy consumption with obesity has nothing to do.    

Sirait, Ganda

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

Painting activity is a production process that determines the quality of the companys products. This painting process is an application in liquid form, to create a layer for later, a hard layer or cat layer. Product defects from painting activities that are still found by the availability of paint on the product, it is a challenge to provide the company the best  solution. Another problem is  the  number of cats  used by the production department in  the  painting process. Supply chain  issues  in  inventory inventory of painting materials, sometimes stocks and stocks runs out. This study will discuss and analyze the factors that find the number of cats in the painting Truck Body 777 performs Cuase and Effect analysis (fishbone diagram) and uses Analytical Hierarchy Process (AHP) to determine the cats glory factor. Data is taken from production data for one year and four months. Result of research result from every factor of production, cause of product defect in percentage, that is human being equal to 65%, method equal to 62%, machine equal to 48%, material equal to 75%, and environment 50%, and also highest dominant factor difference the amount of paint used in the 777 Truck Body process is a material factor

-, Hazimah, Triwuri, Nurlinda Ayu

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

Water is a fundamental and essensial need in life. Batam is one of industrial cities that use a lot of refill drinking water. Industry is a potential source of water pollution especially arsenic (As) and Cyanide (CN, it produces pollutants that are extremely harmful to people and the environment. Industry is a potential source of water pollution, it produces pollutants that are extremely harmful to people and the environment. Many industrial facilities use freshwater to carry away waste from the plant and into rivers, lakes and oceans. Inorganic industrial wastes are more difficult to control and potentially more hazardous Industries discharge a variety of toxic compounds and heavy metals. The most pollutans heavy metals are Lead,Cadmium, Copper, Chromium, Selenium, Mercury, Nickel, Zinc, Arsen and Chromium. Heavy metals are dangerous because they tend to bioaccumulate. While Cyanide is very harmful to the environment and other living things. The perpuse of this research is to know the content arsenic (As) and Cyanide (CN) in the depot of refill water in Batam. Sample analysis conducted at PT.Sucopindo branch Batam Riau Island-Indonesia. The sampel number of six samples from each district Batam is Salsabila Batam Center, Pak De Qua Tiban, Fun Qua batu Ampar, Fresh Qua Bengkong, Salwa Qua Batu Aji, dan Alam Qua Piayu. The result obtained Arsenic (As) and Cyanide (CN) content of sixth refills depots is <0,0001 mg/L dan <0,008 mg/L. The result of this research showed  that all six samples meet the qualification of the Regulation of the Ministry of Health no.492 Year 2010 both arsenic (As) and cyanide (CN).

Sokhibi, Akh

JURNAL REKAYASA SISTEM INDUSTRI Vol 3 No 2 (2018): (Juni 2018)
Publisher : Program Studi Teknik Industri Universitas Putera Batam

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Abstract

Practicum in the laboratory of a university is not widely realized that it can have an ergonomic disorder (ergonomic disorder). This ergonomic disorder risk study was conducted on 56 students using Ergonomic Laboratory and System Working System of Muria Kudus University.The method used in this research is descriptive quantitative research with survey and observation instrument to analyze the risk of the occurrence of Musculosceletal Disorder (Ergonimic Disorder). Weighting and scores as well as statistical tests of contingency coefficients are used to determine the relationship level of risk with the incidence of Musculosceletal Disorder (Ergonimic Disorder).The results of this research is indicate that in the population who conducted high activity in the laboratory was 55.4% and in the population who were doing moderate activity in the laboratory of 44.6%. In other variables known are ergonomic disorders of 43% and no ergonomic disturbance disorder of 57%. While for statistical test result contingency coefficient equal to 0,26. The conclusion of this research is that facilities and attitude not ergonomic and less maximal socialization of K3 can cause complaint of ergonomic disorder at user of Mechanical Engineering Laboratory of Muria Kudus University