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Gigih Priyandoko
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INDONESIA
JOURNAL OF SCIENCE AND APPLIED ENGINEERING
Published by Universitas Widyagama
ISSN : 26213753     EISSN : 26213745     DOI : -
ournal of Science and Applied Engineering (JSAE) is an open access peer-review journal, and is aimed to disseminate original research in all fields of Electrical Engineering, Mechanical Engineering, Civil Engineering, Industrial Engineering and Informatics Engineering and presents the latest development and achievements in scientific research in Indonesia and overseas to the world’s community. Only original, innovative and novel papers will be considered for publication in the JSAE. The authors are required to confirm that their paper has not been submitted to any other journal in English or any other language. The JSAE welcome contributions from all who wishes to report on new developments and latest findings in science and applied engineering.
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Articles 7 Documents
Search results for , issue "Vol 1, No 2 (2018): JSAE" : 7 Documents clear
Design And Implementation Of Ls-Pmsg For Small Scale Hydro Power Plant Yusuf Ismail Nakhoda; Feri Prasetyo Nugroho; M. Abd. Hamid; Awan Uji Krismanto; Eko Yohanes Setiawan
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (510.941 KB) | DOI: 10.31328/jsae.v1i2.892

Abstract

- In conventional power system, synchronous generator which characterized by high-speed operating condition has been widely implemented. However, those high-speed synchronous machines are not suitable for a power plant powered by renewable energy (RE) due to uncertain feature of renewable resources. To overcome this problem, an electrical machine with low-speed characteristic is required for ensuring stable operation and maintaining output power of the RE based distribution generation (DG) unit. In this paper, a low-speed permanent magnet synchronous generator (LS-PMSG) is designed and implemented. To realize low-speed operation capability, the multi-stages permanent magnet synhcronous machine is proposed. The multi-stages machine equipped with two stators and three rotors construction. From the experimental results, it was monitored that output voltage of single rotor of the designed machine was 35 V. Moreover, to increase the output voltage to 50 V, those three rotors can be connected in series.
Analysis of Road Surface Defects Using Road Condition Index Method on the Caruban-Ngawi Road Segment A. Suraji; A. T. Sudjianto; Riman Riman
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (987.24 KB) | DOI: 10.31328/jsae.v1i2.887

Abstract

Road maintenance action program must begin with identification of road surface defects before compiling a work program. One method of identification of road defects is the Road Condition Index (RCI) method. This method is simpler than the other methods because the survey method is by visualizing. This study aims to identify road defects with the RCI method carried out by several surveyors and how defects occur on the Caruban-Ngawi road section.The method used in this study is by direct survey of primary data on road surface defects conditions. There were 3 surveyors who conducted a survey with normal and opposite directions along the road. Data slices are made at lengths of every 100 m to identify road defects. The data is processed by doing an average on each data which is then made a strip map of road defects image. Data processing was done by determining the percentage of defects categories ranging from good, moderate, light defects, and heavy defects.The results of the study showed that the survey conducted by several surveyors was good and the general results were not significantly different. This means that the surveyors have almost the same perception in terms of assessing the condition of road defectss with the RCI method. The condition of road pavement on the Caruban-Ngawi road in general can be said that the road is still in good condition where heavy defects road damage in the normal and opposite directions is only 1.13% and 0.28% respectively.
Electrical Energy Steam Boiler Heat Loss Analysis in Japfa Comfeed Indonesia Tbk, Unit of Sidoarjo Joseph Priyandana; Jamaaluddin Jamaaluddin
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (449.46 KB) | DOI: 10.31328/jsae.v1i2.893

Abstract

In the animal feed industry, steam is used in pellet making machines. In this process, steam from the boiler is distributed to the pellet mill through the pipe. The purpose of this study is to observe the waste of electricity costs of operating a boiler by calculating heat loss in a distribution pipe. The method of assessing heat loss is done by calculating losses caused by heat loss in the boiler distribution. Then make a calculation application model based on the data obtained. From the data analyzed, the amount of heat lost in the non-insulating distribution pipe is 0.766 kJ/s with a loss of Rp 5.628,600 operating costs per month compared to heat loss in an isolated pipe condition of 0.047 kJ/s with losses which cost slightly more than Rp 368 190 / month. This heat loss calculation process is made on an android application by entering the calculation formula on the program and the data that has been obtained.
Designing VHDL to Simulate the Error Correction of Hamming Code A. Mahmudi; S. Achmadi
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (971.121 KB) | DOI: 10.31328/jsae.v1i2.888

Abstract

The role of error detection and error correction for the data bit by the receiver is very important because the sender does not need to repeat the transmissions. Thus, the speed and reliability in transmitting data information can be maintained. This study aims to implement simulation the Forward Error Correction (FEC) method in verifying and correcting data errors received by using simulation. To support FEC method, study utilizes visual basic software so that it can be used as one of the quasi-experimental modules in the data communication laboratory. The Forward Error Correction (FEC) method is a method that can correct data errors in the receiver. This method uses simulated Hamming codes on the computer so that the detection and correction process can be clearly demonstrated on the monitor screen. This simulation can be used as a quasi-experimental module in a data communication laboratory. The simulation results show that the Hamming code (17, 12) codec has been running as expected.
Exploration of Physics-Chemical Quality Lahor Reservoir of Malang District, Indonesia Hery Setyobudiarso; Endro Yuwono
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (898.664 KB) | DOI: 10.31328/jsae.v1i2.889

Abstract

Lahor Reservoir was built and functioned as a water provider for agricultural activities, flood control, electricity generation, tourism activities and inland fisheries. This reservoir is one of the inflows of the Sutami reservoir which is the largest reservoir in East Java. This Lahor Reservoir is drained by three rivers, namely the Lahor River, Leso River and the Dewi River, which flows through housing and paddy fields, allowing the entry of organic and inorganic materials from various activities around the rivers and reservoirs. The aim of the study was to assess the physico-chemical parameters of the Lahor reservoir during the dry season. This research was conducted between March and April 2018. Water quality analysis was carried out in the Laboratory of Environmental Engineering Department of ITN Malang. The study was conducted by survey method and sampling method. Measurement of physical and chemical parameters of the waters was determined at 4 stations and each station consisted of 5 sampling points with different depths. Data analysis using descriptive statistics (mean, graph). The assessment of the temperature in the waters of the Lahor Dam ranged from a value of 24-28o C, turbidity with a value of 0.4 NTU, DO values from surface to base increased significantly with values of 29.1 mg / L, 33.9 mg / L and 34.3 mg / L and still meet the minimum water requirements for aquaculture. The high BOD value at the Lahor reservoir outlet is influenced by the accumulation of organic substances from several inlets and dam waters. Phosphate values are higher along with water depth and Fecal Coli ranges from 1-2 MPN / 100 mL at all sampling points. In general, the Lahor reservoir water still meets the quality standards for class I waters.
Utilization of Solar Power Plant as an Alternative Energy Sources Solar Applications in Building System Jamaaluddin Jamaaluddin
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (370.991 KB) | DOI: 10.31328/jsae.v1i2.890

Abstract

Solar energy is one source of energy and has advantages compared with fossil energy sources. Solar energy is very necessary to be researched and developed further, including at the University of Muhammadiyah Sidoarjo. Utilization of solar energy, it is by preparing the installation of Photovoltaic Cell (solar cells) to determine the placement position and angle of the slope. The utilization of solar power will be applied at the Laboratory of Electrical Engineering University of Muhammadiyah Sidoarjo to make Solar Building System (SBS). This study will carry out an analysis of the utilization of solar energy compared to using the resources of PT. State Electricity Company (PT. PLN). The analysis was done with the installation of SBS consider investment and installation costs grid drawn on the Net Present Value, and compare the operating cost between SBS with the grid system. This research show the results of the analysis in gain by using SBS will have a value higher efficiency compared to the grid system at a certain time span by considering Break Event Point (BEP) SBS installation investment. Over 21 Years. 
Expert System Design to Diagnos of Virus Infection Disease in Children with Certainty Factor Method Sentot Achmadi; Ali Mahmudi; Anggiana Nayang Gita
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 1, No 2 (2018): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1032.8 KB) | DOI: 10.31328/jsae.v1i2.891

Abstract

Information technology that continues to grow can be utilized in the service of human life in the world of health. Infectious disease is a disease that is quite dangerous for children. Delay in treating the disease can cause more severe disease. So that a system that has the ability to diagnose diseases is needed. Expert systems are computer applications that try to adopt human knowledge to computer programs like an expert. Many expert systems have been developed including diagnosing stroke and others. In this study, the expert system was used as a tool to diagnose viral infectious diseases in children. In this study we will discuss the making of expert system applications for infectious viral infections in desktop-based children using the certanty factor (CF) method. This expert system was built to diagnose tropical diseases caused by viral infections. This system provides information about diagnosis, treatment and prevention. Methods of tracking the symptoms of each patient, matching them with existing rules, and producing a diagnosis based on the knowledge base. Knowledge based from this expert system was obtained from several pediatricians and reference books. This expert system application is designed based on desktop and MySQL database as data storage. The resulting output is the value of the possibility of child disease based on the symptoms that have been given by the user. The magnitude of the probability value is the result of calculations using the certainty factor method.

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