Publication Search

Climate change and air pollution are necessitating a transition towards sustainable transportation. However, the adoption rate of electric motorcycles in West Kalimantan remains low. This study aims to analyze the factors shaping the intention to adopt electric motorcycles in this region using an extended Technology Acceptance Model (TAM) framework. A quantitative method was employed, involving a survey of 200 respondents selected through purposive sampling, with the data analyzed using Structural Equation Modeling (SEM). The results indicate that perceived usefulness and perceived ease of use have a positive and significant influence on adoption intention. Notably, perceived ease of use emerged as the most dominant determinant, not only directly impacting intention but also indirectly influencing it through perceived usefulness. Among the external variables, compatibility was found to enhance perceived usefulness, while enjoyment positively affected perceived ease of use. Conversely, resource availability did not significantly shape initial perceptions. The implications of these findings suggest that stakeholders should prioritize strategic communication that highlights the ease of use, enjoyable riding experience, and functional benefits of electric motorcycles. These efforts should be supported by policies aimed at accelerating infrastructure development and providing incentives to encourage broader adoption.

Batteries are the primary component in electric motorcycle propulsion systems, playing a crucial role in storing and supplying energy. However, batteries have a limited lifespan, potentially becoming waste after their useful life. Battery waste is categorized as hazardous and toxic waste (B3) because it contains heavy metals and chemical compounds that can negatively impact human health and the environment if not managed properly. As the adoption of electric motorcycles increases in Indonesia, particularly in the Special Region of Yogyakarta (DIY), the issue of battery waste management is becoming increasingly important. Currently, there are no electric motorcycle manufacturers openly willing to manage post-life battery waste, particularly through recycling activities. This situation creates a gap that informal actors could potentially exploit. Informal actors often possess flexibility and basic technical skills, but their capacity to manage battery waste safely and sustainably still needs to be mapped and strengthened. This study focused on mapping the potential capabilities of informal actors in the Special Region of Yogyakarta by 2025. The results indicate that the potential for informal actors capable of providing battery repair services is only around 1%. This figure is very small and therefore insufficient to support future battery waste management needs. Therefore, multi-stakeholder support is needed, from the government and manufacturers to the community, to encourage capacity building among informal actors. This effort is crucial to anticipate the success of the government's 2030 target for electric vehicle conversion, while also ensuring environmental sustainability.

This study discusses the comparison of efficiency between Pulse Width Modulation (PWM) and Variable Frequency Drive (VFD) techniques in electric motor control. The background of this research is based on the importance of energy efficiency in industrial applications using electric motors. The aim of this study is to identify the advantages and disadvantages of each method in the context of energy savings and motor performance. The method used is a quasi-experimental design, where both techniques are tested on the same three-phase induction motor to compare power consumption and operational efficiency. The findings indicate that the use of VFD is significantly more efficient in reducing power consumption compared to PWM and provides better torque stability in the motor. The implications of this research suggest that the application of VFD can enhance energy efficiency and reduce operational costs, which is crucial for industries. This study is expected to serve as a reference for further development in electric motor control technology.

With the development of science and technology, the need for energy is getting bigger. influenced by an increase in population and human needs. One example of energy needed by all parties, including industries, is electrical energy. Electrical energy is an energy that cannot be separated from everyday life, where almost all equipment uses electrical energy both in industry and in development itself which is one of the factors that demand the supply of electrical energy. One of the most important equipment in the PLTU, namely the drive on the conveyor belt, is a 380 V electric motor. Electric motors are prone to being overloaded because they are used too often to reach the target, and also because these electric motors are often exposed to dust from coal which can cause the electric motor to accumulate dirt in the electric motor where the electric motor becomes obstructed and when it reaches letting it sit continuously can make the electric motor not optimal in operation and can be totally damaged.

This journal discusses the information system that will be designed as a means of selling electric motor by PT Talabu.Traditional motor cars are being replaced by more ecologically friendly electric motors, which are growing in popularity. PT. Talabu, an electric motor sales company, faces problems in inventory management and sales processes. This study's primary goal is to develop a sales information system that can help PT. Talabu in managing inventory and its operations. This research uses system needs analysis, database design, and user interface development. At the stage of analysis of system needs, the researchers found the primary needs of PT. Talabu to conduct sales operations and inventory management. This analysis shows that a database is intended to store data about customers, electric motors, and sales transactions. In addition, the app is simple to use and user-friendly.

PT WIKA Industri Manufaktur is a company operating in the automotive sector in Indonesia. The products sold by PT WIMA are the GESITS G1 and GESITS RAYA G electric motorbikes. The company must have an effective and efficient strategy in selling new electric motorbike products in Indonesia. This research aims to determine the implementation of marketing strategies carried out by PT WIMA. This research uses a qualitative approach by conducting interviews and collecting data from several parties involved in the PT WIMA marketing program. Through data collection using observation methods, it can be seen that the marketing strategy carried out by PT WIMA in marketing GESITS electric motorbikes is to use the Segmenting, Targeting, Positioning (STP) marketing strategy and also the 4P Marketing Mix strategy (Product, Price, Promotion, Place)  

In a steam power plant, of course, it has a very important prime mover, namely an electric motor, but electric motors are used in a variety of functions, one of the main roles in this electric motor is as a condensate extraction pump in a steam power plant which functions to push materials for power plant production. Steam power, namely sea water, goes to the generator to become a power plant. The method used is qualitative by using observation techniques, interviews and literature studies. This condensate extraction pump (CEP) electric motor can be operated automatically and manually for routine maintenance and good inspection results.    

The need for water consumption is currently very high, almost all human activities require water, therefore the process and production of water is very important to maintain health, the electric motor is the main driving tool needed in the process of cleaning water, therefore the motor is able to move the machine to clean the place water filter or water filter at the Tirta Madani Regional Drinking Water Company in Serang City to maintain water quality. The method used is qualitative by using observation techniques, interviews and literature studies. The filter backwash system is one of the ways to care and maintain the quality of drinking water. Backwashing requires an electric motor, a centrifugal pump and an air blower as its propulsion device.    

.  Seiring dengan bertambahnya populasi penduduk yang berbanding lurus dengan bertambahnya kebutuhan listrik, maka komparasi energi sangat diperlukan. Perbandingan energi listrik merupakan salah satu upaya konservasi energi yang dapat dilakukan. Dengan cara seperti ini salah satu dampak positif dari penghematan energi listrik ini adalah pengurangan biaya dari penggunaan energi. Konservasi energi dapat dilakukan secara menyeluruh atau hanya pada beban listrik tertentu. Beban listrik yang paling banyak digunakan dan paling banyak membutuhkan konsumsi energi pada sektor industri adalah mesin listrik karena sebagian besar konsumsi energi pada sektor industri digunakan untuk menyuplai motor listrik.    

Perkembangan sektor industri saat ini melaju sangat pesat, kebutuhan akan mesin mesin listrik berupa motor listrik sangat dibutuhkan dalam menunjang keberlangsungan produksi. Penggunaan motor listrik di PT. Cemindo Gemilang tentunya mengakibatkan beberapa kendala dengan itu penggunaan pengasutan motor dengan jenis Variable Speed Drive dan Soft Starter diterapkan pada industri cemindo gemilang. Penelitian ini bertujuan menganalisis pengasutan motor jenis variable speed drive (VSD) dan soft starter pada Fan Coller System di PT. Cemindo Gemilang. Hasil dari penelitian ini mengetahui hasil analisis pada penggunaan pengasutan motor, load consumption serta efisiensi penggunaan dari dua jenis pengasutan tersebut dimana pengasutan merupakan sistem untuk menjalankan motor pertama kalo dengan tujuan agar arus starting tetap kecil serta drop tegangan pada sisi suplay masih dalam batas toleransi.

Electricity is one of the vital needs that is indispensable for all humans and other places, one of which is PT. Cemindo Gemilang, engaged in the cement-producing industry, requires a huge electricity capacity. To reduce or reduce the cost of electrical energy, a power plant unit and a WHRS (waste heats recovery system) were made to supply electrical energy to the cement plant area. PT. Cemindo Gemilang and the Power Plant rely heavily on electric motors, almost all of which operate using electric motors. The electric motor is a single-phase or three-phase type with a voltage of 11 KV, 6.6 KV or 400 volts. When all generating units operate, all electric motors that play an essential role will continue to be active so that damage is often caused by operation and service life therefore in the power plant department, and there is an electrical and mechanical maintenance division to maintain the continuity of the power plant operational system. This study's aim 1). Explain about electric motors, 2). Explain the definition of the water jet pump, 3). Explain how the water jet pump works 4). Explain the components used in electric motors and their repair and maintenance.