Journal of Renewable Energy, Electrical, and Computer Engineering
Journal of Renewable Energy, Electrical, and Computer Engineering (JREECE) is a peer-reviewed and open access journal that aims to promote and disseminate knowledge of the various topics and area of Renewable Energy, Electrical, and Computer Engineering. The scope of the journal encompasses the following: Energy, Renewable Energy, Solar and Low Energy Architecture, Energy Conservation in Buildings, Climatology and Meteorology (Geothermal, Wave and Tide, Ocean Thermal Energies, Mini Hydro Power and Hydrogen Production Technology), Energy policy, Socio-economic and Energy Efficiency and Management, Electrics, Robotics, Embedded Systems, DCS & PLC, Signal Processing, Image Processing & Computer Vision, Artificial Intelligence, Big Data & Data Mining, Wireless & Network. Journal of Renewable Energy, Electrical, and Computer Engineering (JREECE) published periodically two times annually (March and September) by Institute for Research and Community Service, Universitas Malikussaleh, Indonesia.
Articles
48 Documents
<![CDATA[Information Technology Governance Audit Using COBIT 5 of DSS Domain (Deliver, Service, And Support) Framework at Malikussaleh University Lhokseumawe ]]>
<![CDATA[Safwandi Safwandi]]>;
<![CDATA[Muthmainnah Muthmainnah]]>;
<![CDATA[Misbahul Jannah]]>;
<![CDATA[Hamdi Akmal Lubis]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 2, No 1 (2022): March 2022 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v2i1.6633
<![CDATA[Information technology is very important for companies or institutions to support the achievement of the company's strategic plans to achieve their goals, vision, and mission. Nowadays, an institution can improve the performance of information technology that goes hand in hand with the development of information technology to produce better technology by auditing information technology governance in the company. The purpose of this study is to analyze IT governance using the COBIT 5 framework in the DSS domain at Malikussaleh University Lhokseumawe. COBIT 5 provides a comprehensive framework that helps companies achieve their goals in corporate governance and IT governance. The framework helps companies create optimum value from IT by maintaining a balance between realizing benefits and optimizing risk and resource usage levels. By conducting an audit of information technology governance in the company, the company can find out whether the information technology that has been operating is in accordance with the business processes and company objectives and convey accurately based on the IT strategy. The results of the information technology governance audit based on COBIT 5 in the DSS Domain, on average are at 2.2 (Manage process) to 2.6 (Established Process).]]>
<![CDATA[Analysis of Age Transformer Due to Annual Load Growth in 20 kV Distribution Network ]]>
<![CDATA[Indra Roza]]>;
<![CDATA[Yussa Ananda]]>;
<![CDATA[Lisa Adriana Siregar]]>;
<![CDATA[Catra Indra Cahyadi]]>;
<![CDATA[Junaidi Junaidi]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 1 (2021): March 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i1.3685
<![CDATA[Distribution transformer is a component in distributing electricity from distribution substations to consumers. Damage to distribution transformers causes continuity of customer service to be disrupted (power cut or blackout occurs). The length of the PLN electricity network requires a transformer to distribute electricity to serve consumers and how to maintain the transformer. The daily load curve of a peak load for housing, shops and factories / industries varies. Load served 200 kVA distribution transformer cannot serve the load on housing, shops and factories / industry. The method used is the replacement of a distribution transformer with a capacity of one stage greater or the replacement of a distribution transformer with a capacity of two levels larger. The distribution transformer carried out by the research is a capacity of 200 kVA replaced by 250 kVA. The ability of a distribution transformer cannot accommodate a load which will increase as an area is advanced. Observations made by calculating the age of the transformer by assuming the annual load growth (r) = 3% = 0.3. Annual peak load (P) = 1.8 p, u increase in oil temperature at peak load (θo = 96.21 0C; 84.16 0C). The increase in the hottest temperature above the oil cover, the increase in the temperature of the hottest place above the oil (θg = 20 0C; 20 0C). The ratio of the load loss to the nominal load excitation loss (Q = 3; 30). By assuming the values of these methods it can be estimated that the life of a distribution transformer is 20 kV, a capacity of 200 kVA is 18 years.]]>
<![CDATA[Analysis of Technical Loss Calculation Using Load Curve Approach on 20 kV Distribution Network ]]>
<![CDATA[Rizky Rahmat Maulana]]>;
<![CDATA[S Salahuddin]]>;
<![CDATA[E Ezwarsyah]]>;
<![CDATA[Baharuddin Ismail]]>;
<![CDATA[Ashish Shrestha]]>;
<![CDATA[Dhiraj Vijayrao Astonkar]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 2 (2021): September 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i2.5238
<![CDATA[Energy loss (losses) is the loss of a certain amount of energy generated when it is distributed to consumers so that it affects the profitability of the company concerned. The size of the losses from an electric power system shows the level of efficiency of the system, the lower the percentage of losses that occur the more efficient the system. Energy losses in the distribution network are generally divided into two, namely technical and non-technical losses. The calculation of technical losses in the 20 KV medium distribution network of PT PLN (Persero) Ulp Matang Glumpang Dua is carried out using the load curve approach method and using the help of the Microsoft Exel program, while the technical losses calculated are technical losses on the Medium Voltage Network and Distribution Transformer. From the results of the analysis of the calculation of technical losses in 2020, the total technical loss value at MG-01 Matang City is in the range of 13.8% to 20.8% which consists of the average technical loss in the Medium Voltage Network feeder of 0.02%. and the loss of Distribution Transformer by 17.6%.]]>
<![CDATA[The Effect of Charcoal on the Improvement of Grounding Resistance as a Soil Treatment in Reducing Grounding Resistance ]]>
<![CDATA[Partaoanan Harahap Partaoanan Harahap]]>;
<![CDATA[Waleed Khalid Ahmed Al-Ani]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 1 (2021): March 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i1.3619
<![CDATA[Current technological developments are very competitive with each other, both in electric power distribution systems or electronic equipment. Disturbances that occur are usually caused by short circuits and ground disturbances, or lightning strikes. These disturbances will result in a voltage drop or increase in voltage, which results in decreased system stability, endangers people's lives, and can damage electronic equipment. Coconut Shell Charcoal has a lower resistivity value than soil and has a larger pore structure to absorb more water, and has conductive properties. The results obtained from the comparison using dry coconut shell charcoal and wet coconut shell charcoal show that measurements using wet coconut shell charcoal are better (less resistance) than using dry coconut shell charcoal. Soil resistivity measurements will be much better at the maximum depth than the usual depth (110 cm), better than 10cm.]]>
<![CDATA[Thermal and Physical Properties of Patchouli Essential Oil Industry Residue as Renewable Feedstock for Bioenergy ]]>
<![CDATA[Zainuddin Ginting]]>;
<![CDATA[Adi Setiawan]]>;
<![CDATA[Rizka Mulyawan]]>;
<![CDATA[Wika Armadani]]>;
<![CDATA[Yuda Hermawan]]>;
<![CDATA[Ashish Shrestha]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 2, No 1 (2022): March 2022 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v2i1.6644
<![CDATA[Patchouli plant is one of main agricultural commodities in Indonesia with an area of 64.67 ha. The solid waste produced from the distillation industry is around 98% of total feedstock. The aim of this research is to disclose the characteristics of solid waste biomass from patchouli essential oil industry harvested from Lhokseumawe, Indonesia. The properties of patchouli biomass before and after distillation was analyzed by using a number of techniques including proximate, bomb calorimeter, TGA-DTG, DSC and lignocellulosic analyses. Five kilograms of biomass was collected after patchouli harvesting then sorted into four categories i.e. leaves, branches and trunk. and mixture of all. Another set of biomass residue was collected after distillation process and grouped similar to those collected before distillation. All samples were then dried, ground and sieved to 50 mesh size. The analysis results showed that the highest heating value was observed from the sample of patchouli leaves collected before distillation process with a value of 15.65 MJ/kg where its volatile matter content was 81.26%. Compositional analysis of lignocellulosic suggested that 27% in pre-distilled branches. Mixture of all parts was found to contain 35% cellulose that was the highest. Lignin content with 42% value was found in after distilled trunk.]]>
<![CDATA[Short Circuit Analysis on Distribution Network 20 kV Using Etap Software ]]>
<![CDATA[Afif Arizaldi]]>;
<![CDATA[S Salahuddin]]>;
<![CDATA[M Muhammad]]>;
<![CDATA[Vishal Jain]]>;
<![CDATA[Govinda Prashad Pandey]]>;
<![CDATA[Manoj Jagannathrao Watane]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 2 (2021): September 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i2.5232
<![CDATA[In an electric power system, electricity is generated by the power plant and then channeled to a transmission line and then distributed to consumers, in the process of distributing electrical energy, the system does not always work in normal conditions, sometimes the system can experience disturbances such as one-phase, two-phase, and three-phase disturbances. This interference can disrupt the electrical system and can damage equipment if left unchecked, therefore it is necessary to install a protection device that can decide the interference so as not to damage other equipment when a disturbance occurs. Here the protection device used is a circuit breaker. In a fault condition, the circuit breaker must be able to separate the points of the fault so as not to damage other electrical equipment. In this case, to determine the capacity of the best protection device for the system, a short circuit fault simulation is performed. To simplify the calculation process here the author uses the help of ETAP software (Electrical Transient Analysis Program).]]>
<![CDATA[Study Coordination Design of Over Current Relay on The Kiln Area Electrical System ]]>
<![CDATA[Raihan Putri]]>;
<![CDATA[Endri Juliadi]]>;
<![CDATA[Misbahul Jannah]]>;
<![CDATA[D. R. Ramji]]>;
<![CDATA[Waleed Khalid Ahmed Al-Ani]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 2 (2021): September 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i2.5570
<![CDATA[PT. Semen Padang is one of the largest cement producers in western Indonesia, along with the development of the cement industry PT. Semen Padang added a new Indarung VI factory to support the production process to meet market demand. With the addition of this new factory, a good safety design is needed in the design of the electrical system so that production continuity is not disturbed and reliability values are high. Therefore, over-current protection coordination studies are needed on the electrical system of the kiln area at Trafo 2 Indarung VI PT. Semen Padang to get a safe and reliable system. In the final task, this time will be done modeling, simulation of load flow and short circuit, calculation of relay settings, and simulation of coordination of overcurrent protection phase interference in the electrical system kiln area in Transformer 2 Factory Indarung VI PT. Semen Padang. The plot results of the coordination of the time flow curve obtained through the results of analysis and manual calculations recommended tuning pick-up overcurrent relayand grading time overcurrent relaytuning phase interference. Grading time between overcurrent relay is coordinated by 0.2 seconds. With the protection coordination setting, the electrical system of the kiln area at the Indarung VI factory PT. Semen Padang is safer and more reliable.]]>
<![CDATA[Economic Dispatch Analysis Using Equal Incremental Cost Method with Linear Regression Approach ]]>
<![CDATA[Arnawan Hasibuan]]>;
<![CDATA[Robi Kurniawan]]>;
<![CDATA[Muzamir Isa]]>;
<![CDATA[Mursalin Mursalin]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 1 (2021): March 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i1.3617
<![CDATA[The use of fuel is one thing that needs special attention, because most of the operating costs of a plant are fuel costs. One of the efforts to minimize the cost of generating fuel is called Economic dispatch. In this study, an Equal Incremental Cost method with a Linear Regression approach will be presented to obtain a minimum generation cost. The case taken is the Pangkalan Susu PLTU which operates two generating units. Based on the results of calculations using the Equal Incremental Cost method with the Linear Regression approach, the cost is -0.033% or an average of -13,111 $/hour.]]>
<![CDATA[Analysis of Load Flow and Short Circuit Against the Addition of Distributed Generation (DG) in Distribution Networks ]]>
<![CDATA[Ahmad Ridwan]]>;
<![CDATA[Aejelina El Gazaly]]>;
<![CDATA[Anang Tjahjono]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 2, No 1 (2022): March 2022 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v2i1.6807
<![CDATA[This study tries to determine the level of change in short-circuit fault currents on certain buses in the Andalas University distribution network due to the installation of a new generator. Simulation of load flow and short circuit faults uses a 20 kV Andalas University distribution network system model to which a renewable generator with a capacity of 200 kW will be added. The simulation results of the load flow on a 20 kV distribution system paralleled with DG show that the voltage drop is still in accordance with the provisions of PT. PLN, this is due to the voltage drop in the distribution system is not up to 10% of the nominal 20 kV. While the short circuit simulation results, the largest single-phase and three-phase short-circuit current values occur at the Nursing_P location of 9.362 kA. However, the short circuit capacity has not yet reached a maximum voltage of 20 kV 500 MVA or 14.4 kA. So that the amount of short circuit current contributed by Nursing_P is within normal limits and does not require additional equipment to protect the fault current.]]>
<![CDATA[Design and Build Solar Panels as Source Rice Thresher Motor Energy ]]>
<![CDATA[Trahman Sitepu]]>;
<![CDATA[Ayu Tamara Malau]]>;
<![CDATA[C Cholish]]>;
<![CDATA[A Abdullah]]>
<![CDATA[ Journal of Renewable Energy, Electrical, and Computer Engineering Vol 1, No 2 (2021): September 2021 ]]>
Publisher : <![CDATA[Institute for Research and Community Service, Universitas Malikussaleh, Indonesia ]]>
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DOI: 10.29103/jreece.v1i2.5233
<![CDATA[Renewable energy generated from sunlight (Solar Panels) can be formed as alternative energy that can be applied to a source of electrical energy in rice thresher equipment. The use of solar energy with a power of 240 WP through the object on the rice thresher is able to replace the rice thresher automatically which is more effective. The power generated by solar energy will be processed into a charging source for the Regulated Battery Charger which can be supplied at a voltage to the control circuit to drive the DC motor. The average voltage generated by solar energy is 0.000394 volts/lux with a maximum voltage of 36.2 volts and a DC motor of 350 watts. In addition, the speed of this rice thresher is 950.8 rpm and is able to produce very good rice cutting against the designed solar energy capabilities.]]>
