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Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains
Published by Universitas Riau
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Core Subject : Engineering,
Engineering
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Articles 3,145 Documents
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Evaluasi dan Proyeksi Kebutuhan Terminal Building Bandar Udara (Studi Kasus Minangkabau International Airport) Suandi, Oki; Sandhyavitri, Ari; Djuniati, Sri
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The development of air transportation in Minangkabau International Airport-Padang Pariaman had indicated that the existing capacity of terminal building was overcapacity with average 2,9 million number of passengers per year was no longer able to accommodate the volume of passengers. It also can be identified through the escalation amount of passenger that reach 3,1 million passengers in 2015. The expansion plan was done by forming equation of multiple linier regression between the volume of passenger as dependent variable with total population, PDRB (Product Domestic Regional Bruto), income per capita and tourist as independent variable. The prediction number in certain year was generated with 328377+0.062Pkt equation and tourist variable with -36623+0,097Wtb equation. The result of terminal building expansion plan area in 2035 should not be less than 65.233m2 with 7.402.896 number of passengers capacity and also able to accommodate 3782 passengers during a peak hour.Keywords : Terminal Building, Forecast
Sensitivitas Hidrograf Satuan Di Sungai Batang Lubuh Dengan Menggunakan Hidrograf Satuan Sintetik Clark Dalam HEC-HMS Isdianto Isdianto; Yohanna Lilis Handayani; Bambang Sujatmoko
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5, No 1 (2018): Wisuda April Tahun 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

The method transforming of rain in HEC-HMS when applied on a DAS, it will show a different response in accordance with the selected method. Therefore it needs to known about the best transforming for sub DAS Rokan Kanan. Process on HEC-HMS program among others input data and calibration. Calibration process has six method Recession – Ratio to Peak, Clark Unit Hidrograph Time Of Concentration, Recession – Initial Discharge, Recession – Recession Constant, Clark Unit Hidrograph – Storage Coefficient, and Initial and Constan-Constan Rate. Objective function which used are Peak-Weighted RMS Error, Percent Error Peak, Percent Error Volume. The result of calibration Peak-Weighted RMS Error method=58.48. Percent Error Peak method = 1.11 and Percent Error Volume method= 0.00. Sensitivity of changes peak discharge and changes volume at parameter Initial and Constan-Constan Rate and Recession-Recession Constant with each changes presentation -76,15% and 77,70%.Keywords: hydrological modeling, unit hidrograph, sensitivity, hec-hms
Aplikasi Sistem Pakar Untuk Deteksi Autisme Pada Anak Berbasis Web Elirza Halena; Noveri Lysbetti Marpaung
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

In the case of children with autism, the role of parents is the most important thing, where parents can make early detection of the possibility of children autism by observing children's behavior in daily life. Surely it is facilitated by the application of expert systems to detect children autism. The application of expert systems is required by parents as a first step to monitor the development of the child without having to meet with experts directly, so parents can easily find out whether their children are autism detected or not.This Expert System Application is implemented into a web-based application with PHP programming language and MySQL database. By using expert knowledge and using certainty factor method in the calculation, then the final result from this Expert System Application is the conclusion of being at risk of autism, possibly autism or not risk of autism in children. In the final result, the value of expert beliefs from the calculation is obtained from the Certainty Factor Method. The result of validating testing is 100% on the test system functionality, and 100% on testing expert system with certainty factor method.Keywords : Application, autism, certainty factor, detection, expert system
Simulasi Perbandingan Performansi Protokol Routing Proactive, Reactive Dan Hybrid Pada Vehicular Ad Hoc Network (VANET) Di Kota Pekanbaru Fitriani Saputri; Linna Oktaviana Sari; Ery Safrianti
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Vehicular Ad-Hoc Network (VANET) is a development of the Mobile Ad-Hoc Network (MANET) which makes the vehicle its node. VANET technology is expected to improve driver safety when driving. VANET has network characteristics that change rapidly due to fast node movement. Therefore, VANET requires a routing protocol that is considered suitable and efficient so that sending data packets can take place optimally. This research simulated and analyzed the performance comparison of proactive routing protocol (DSDV), reactive routing protocol (AOMDV) and hybrid routing protocol (ZRP) on VANET in Pekanbaru city. This simulation was carried out using NS-2.35 and SUMO as a mobility generator. Performance is measured using comparison parameters in the form of Packet Delivery Ratio, End to End Delay, and Routing Overhead. The results show that the AOMDV routing protocol is better than Packet Delivery Ratio parameter values with an average value of 99.9%. DSDV routing protocol is better than End to End Delay parameter values with an average value of 0.09 s. While the ZRP Routing Protocol is better than Overhead Routing values with an average value of 0.500. Thus, the protocols have their respective advantages. Keyword: VANET, Proactive, Reactive, Hybrid, NS-2.35, SUMO, DSDV, AOMDV, ZRP, Pekanbaru
Perbaikan Faktor Daya Menggunakan Motor Sinkron Dengan Metode Fuzzy Logic Control Satria, Alvon; Ervianto, Edy
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Abstract

In many industry most of the load usage in the inductive characteristic condition. This condition getting lower power factor of system. If a low power factor will cause a decrease in the ability and officiency of the power system and affect the level of voltage. The use of synchronous motor in this paper is to produce reactive power to the optimal point power factor of system. The paper proposes is to improve power factor of the system using a synchronous motor. The addition of a fuzzy logic control method as the power factor controller so is always in good condition. Fuzzy logic giving command automatically to the synchronous motor to provide current to the system. Synchronous motor and fuzzy logic able to improve power factor of the system with a high of accuracy.Keyword : Synchronous Motors, Power Factor, Fuzzy Logic
Pengaruh Suhu Dan Persen Katalis Zeolit Terhadap Yield Pirolisis Limbah Plastik Polypropylene (PP) M.T. Abdul Rahman; Syarfi Daud; Muhammad Reza
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Increasing population growth leads to increased plastic waste resulting in adverse environmental impacts, If not further processed. This research was conducted to convert plastic waste into fuel oil using synthetic zeolite catalyst. The purpose of this research is to see the influence of temperature variation and percent catalyst / plastic. A total of 100 grams of polypropylene plastic type were crushed in a batch reactor at a temperature of 300 ° C, 350 ° C, and 400 ° C for 60 minutes with percent catalyst / plastic variations 5; 6; 7 (% weight). The highest yield was obtained at 400 ° C with 7% catalyst / plastic percent of 75.69%. While the highest yield without catalyst was obtained at 400 ° C at 65.57%. The product result obtained is density 0,87 gr / ml, kinematic viscosity value 2,140 cSt, flash point value 52 ° C, calorific value 44.673 kJ / kg. The analysis results show that (%) yield of the product meets the diesel (solar) standard.Keywords: liquid fuel, heating value, pyrolysis, polypropylene, synthetic zeolite.
Analisa Effectiveness Dan Oil Losses Pada Mesin Screw Press Serta Implementasi Kaizen (Continues Improvement) Untuk Peningkatan Proses Produksi Di PTPN V Sei Garo Heri Saputra; Anita Susilawati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This study aims to analyze the production process in press station using the method of Overall Equipment Effectiveness (OEE) and oil losses analysis in PTPN V Sei Garo. The OEE is a method to measure avaibility, performance, and quality of a machine. Furthermore, this research conducted the Kaizen method (continues improvement) to analyses the activities that have no value added and activities need to be improved during the production process. The result showed the OEE value of four screw press machines below the world class standard of OEE (85%). The low value of OEE was due to the availability of raw materials, so the machine was more stands by for raw materials to be processed. Oil losses of screw press machines during the monthly average of 4.67% in March, 4.74% in April, 5.645% in May, 5.86% in June, 5.744 in July and 5.26% in August. This value was still accepted by the company standard (maximum of 7%). To increase the value of OEE and decrease the value of oil losses on screw press machines should be applied Total Productive Maintenance (TPM) and Kaizen (Continues Improvement).Keywords: OEE, Six Big Losses, Oil Losses, Kaizen, Screw Press
Pengendalian Laju Korosi Baja Dalam Air Laut Dengan Menggunakan Proteksi Katodik Metoda Anoda Korban Ayu Annisya Tri Adriana; Komalasari Komalasari; Drastinawati Drastinawati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Cathodic protection is a metal surface protection system against corrosion by direct current (DC ) from an external source to protect metal surfaces from corrosion. In this study, which the protection was employed of voltaic series sacrificial anode method, where the metal has a lower potential is used as sacrificial anodes in order to controlling carbon steel of corrosion. This research was conducted by using ASTM A36 steel in Bengkalis seawater with immersion lengths of 15, 20 and 25 days by using sacrificial anode of Al. The purpose of this research was to study the effect of cathodic protection in controlling the corrosion rate of carbon steel, determine the effectiveness of the sacrificial anode, and determine the best distance from the anode to the cathode. The design of the study was done by varying the type of anode in the form of Al , the anode to cathode distance 1 cm, 2 cm, 3 cm. Data was processed by using weight loss method with unit (mpy). The best protection occured at 15 days immersion, by using Al anode, the lowest corrosion rate is 1.448 mpy. In this study, the anode Al proved efective to protected carbon steel at a distance of 1 cm, and with an effectiveness of 69.06%.Key words: cathodic protection, corrosion rate, seawater, sacrificial anode
Peningkatan Sifat Mekanis Mortar Geopolimer Abu Terbang Batubara Dengan Penambahan Grafena Rahmat Kurniawan Nasution; Amun Amri; Jhon Armedi Pinem
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 7 (2020): Edisi 1 Januari s/d Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

This study aims to observe the influence of graphene addition to the mechanical properties of coal fly ash based geopolymers. The procedure of research consisted of raw materials preparation including the graphene synthesis via Turbulence Assisted Shear Exfoliation (TASE) method, alkali activators solution preparation, and finally moulding and curing process of geopolymer mortar. The results showed that the compressive strength of geopolymer increased while the porosity and the water absorption decreased along with the addition of graphene. The highest compressive strength, the smallest porosity and the smallest water absorption, namely 15.228 MPa, 18.498 % and 10 % respectively was exhibited by sample synthesized using 20 mg/mL of graphene and curing temperature of 80 oC. The presence of graphene in the Geopolymer matrix increases the compressive strength properties of the Geopolymer mortar. Keywords : alkali activators, geopolymer, graphene, matrix, TASE
Bahan Bakar Padat Dari Pelepah Sawit Menggunakan Proses Torefaksi; Variasi Suhu Dan Ukuran Bahan Baku Susilowati, Susilowati; Helwani, Zuchra; Komalasari, Komalasari
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Oil Palm Frond can be used as alternative energy source by using torrefaction process. Torrefaction is a pre-treatment process of biomass into solid fuel within temperature range of 200-300oC in an inert condition. This research aims to produce solid fuel from oil palm frond and study the effect of process variabel towards characteristic of solid fuel resulted. Torrefaction of empty fruit bunch was using fixed bed horizontal reactor with temperature (250-300oC) and particle size (5-15 mm). Product quality resulted was calorific value, mass yield, energy yield and proximate (moisture content, ash content, volatile content and fixed carbon). The result obtained for calorific value in range was 19513.82-22684.77 kJ/kg, mass yield was 47.93-71.64 %, and energy yield was 65.09-86.39 %. 17091.03-20697.13 kJ/kg, mass yield was 52.63-84.52% and energy yield was 64.12-99.05%. Proximate analysis resulted in the form of moisture content was 1.81-3.25 %, ash content was 4.54-6.13 %, volatile content was 40.95-63.48 %, and fixed carbon was 28.62-51.53. from the result obtained, the effect of rising temperature give enhancement to the calorific value, energy yield, ash content, and fixed carbon. While the influence of increasing particle size give enhancement to the mass yield, calorific value, moisture and volatiles content. From the result of hypothesis testing using F test showed that Fcalculated was greater than Ftable. This indicates that the data obtained significant influence and according to the resulting model.Keywords: biomass, oil palm frond, solid fuel, torrefaction.

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