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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) MANAZHIM Physics Communication Jurnal Energi Baru dan Terbarukan Electrician : Jurnal Rekayasa dan Teknologi Elektro ELPOSYS: Jurnal Sistem Kelistrikan Journal of Community Empowerment
Satria Pinandita
Program Studi Teknik Elektro,Fakultas Teknik
Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Physics

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Conductivity of Groundwater In Semarang City Pinandita, Satria; Puji Lestari, Diah Aryati; Purwanti, Hani
Physics Communication Vol 3, No 2 (2019): August 2019
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/physcomm.v0i0.25580

Abstract

Semarang is the capital of Central Java Province and is the most developed city in Java island. This city is one of the most important cities in the north coast of Java. Most of Semarang’s landscape consists of lowland areas that become floodplain of the large rivers that flow through the city. Water is not only used for drinking but also for other necessities such as bathing, washing, agricultural and industrial needs, electricity generation, etc. The objective of this study was to determine the conductivity value of groundwater from several locations in Semarang as the conductor of electricity. This study used groundwater samples from seven locations in Semarang. The tests conducted including TDS (Total Dissolved Solid) test by inserting TDS meter into the water and recorded the value after 3 seconds of observation. The conductivity test was done by water electrolysis using a buzzer circuit. The test was conducted by inserting the electrode into the water for 3 seconds, then observed the buzzer sounding (soft or loud). Afterward, the water temperature was recorded using the thermometer. Results of this study showed the different water conductivity of groundwater collected from different locations. The lowest conductivity was obtained from S-1 sample with TDS value of 50 ppm, while the highest conductivity was obtained from S-7 sample with TDS value of 549 ppm. The higher the TDS and temperature value, the higher the electrical conductivity. 
Literature Review: Kajian Potensi Energi Surya Alternatif Energi Listrik Kharisma, Amrul; Pinandita, Satria; Jayanti, Ari Endang
Jurnal Energi Baru dan Terbarukan Vol 5, No 2 (2024): Juli 2024
Publisher : Program Studi Magister Energi, Sekolah Pascasarjana, Universitas Diponegoro, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jebt.2024.23956

Abstract

The demand for electrical energy is increasing every year and coal is also predicted to run out in the next few decades, so it must be replaced with new renewable energy such as solar energy sourced from solar radiation. This research aims to find out the potential of solar energy as an alternative source of electrical energy that can replace coal. This research is a type of qualitative research with a literature review method. Research data was collected from secondary sources from journals with the same research focus in 2019-2024 and the national energy balance analysis report (National Energy Council. The findings of the study show that national energy management has been regulated by the National Energy Council in the National Energy Policy (KEN) guidelines. Solar energy is encouraged by the government to be developed in Indonesia because of its huge potential considering that Indonesia is at the equator and has a tropical climate so that the intensity of solar radiation tends to be constant and comprehensive throughout Indonesia. The supply of solar energy from 2018-2022 continues to increase, this also encourages the development of solar power plants in Indonesia. In addition, the use of solar energy as a raw material for solar power plants also encourages battery investment, because sunlight has intermittent properties so that temporary storage such as batteries is needed to store energy before being converted into electrical energy. Thus, solar energy has a great opportunity to be developed in Indonesia considering the potential geographical location of the country and as a way to attract investors.
Ensuring Employee Productivity: Utilizing Job Satisfaction as Mediating Pinandita, Satria; Soelistya, Djoko; Desembrianita, Eva
MANAZHIM Vol 6 No 1 (2024): FEBRUARI
Publisher : Manajemen Pendidikan Islam STIT Palapa Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36088/manazhim.v6i1.4517

Abstract

The objective of this study is to analyse the factors that impact employee performance, namely the effect of remuneration and punishment, with satisfaction acting as a mediating factor. The study used a quantitative research methodology, focusing on a population of workers. The sample size consisted of 200 respondents. The research findings indicate that Compensation, Discipline, and Job Satisfaction have a direct and substantial effect on employee performance. Additionally, work discipline positively and significantly influences job satisfaction. However, Compensation does not have a positive and significant impact on Job Satisfaction. The mediation analysis demonstrates that employee satisfaction plays a crucial role in fully mediating the impact of compensation and discipline on employee performance. Therefore, in order to enhance performance, it is imperative to prioritise employee satisfaction in the workplace and also pay close attention to employee compensation and work discipline.
Analisa Mesin Pengering Makanan Food Dehidrator Menggunakan Sensor Thermostat Berbasis Hybrid Pinandita, Satria; Supari, Supari; Saputra, Dian Nova; Al Amin, Anggara Fuad
Electrician : Jurnal Rekayasa dan Teknologi Elektro Vol. 18 No. 1 (2024)
Publisher : Department of Electrical Engineering, Faculty of Engineering, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/elc.v18n1.2582

Abstract

The process of drying food is done in the traditional way, by drying it in the hot sun, but the traditional drying method makes the food unhygienic. Several factors can influence the drying results of food ingredients, including temperature and drying time. Using optimal drying temperatures and times can reduce the level of damage caused by the drying process. This research aims to obtain an analysis of a food dehydrator drying machine using a hybrid-based thermostat sensor that can optimally condition the temperature and time factors in the drying process, the hyfood dehydrator machine system uses a dehumidification method, there is a heat recovery mechanism that recycles heat to open new air, thus saving 60-70% of fresh air preheating energy consumption. Hot air moving in the room dries the material. It is known that the test result data was analyzed by calculating the accuracy values, down to the relative distance values. The results of the comparison process are used as validation of the output values ​​produced by the temperature measuring instrument. The measurement results of the Digital Thermostat Sensor are in accordance with the datasheet and have a high level of accuracy. So the Digital Thermostat Sensor measuring instrument can be used as a measurement tool. With an internal fan, thermostat, and time settings on this device, you only need to set the right heat according to the type of food you want to dry. The shelves in the cupboard consist of drying trays that can maximize the drying process
Sistem Monitoring Manajemen Baterai Perahu Listrik di Sayung Menggunakan Metode What If Arif Fajar Nugroho; Supari; Pinandita, Satria
Elposys: Jurnal Sistem Kelistrikan Vol. 12 No. 1 (2025): ELPOSYS vol. 12 no. 1 (2025)
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/elposys.v12i1.6638

Abstract

The price of fuel oil contributes 45% of the total operational costs of fishermen, which must be borne while operating electric passenger boats. The search for alternative sources of electrical energy, especially solar powered electric boat, is carried out as an effort to overcome this problem. In this study, monitoring using the firebase application serves as the main means of data collection. To obtain real data on the voltage and electric current in the battery, researchers used the what if approach, where the program can read the input values ​​​​from the voltage and current sensors on the battery. By using the what if method, researchers want to obtain accurate battery charging and discharging test results and a level of truth approaching 100%. From the data analysis, the results showed that when charging the battery, the highest peak point occurred from 12.00 to 13.00 with a light intensity of 168080.40 Lux, a current of 10.57 amperes and a temperature of 32.20 0 C. While when discharging the battery, the lowest voltage value occurred at minute 45 of 71.28 volts, inversely proportional to the current of 41.26 amperes. This is due to the voltage drop in the battery to supply the 4000 Watt BLDC motor.
Innovation of Hybrid Solar and Gas-Powered Maggot Dryer Machine as a Solution for Dry Feed Pinandita, Satria; Jayati, Ari Endang; Derman, Derman; Elawati, Nunung Eni; Ramadan, Bimastyaji Surya
Journal of Community Empowerment Vol. 5 No. 1 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i1.19313

Abstract

Sugihmanik Village, a major tofu production center, produces substantial amounts of organic waste, particularly wastewater that contaminates local rivers and disrupts the surrounding ecosystem. A community service program has been developed to convert tofu waste sludge into maggot feed, followed by drying using a hybrid solar and gas-powered maggot drying machine. Initial activities involved program outreach and technical training on maggot cultivation and the drying process. A drying trial demonstrated that 200 grams of wet maggots were reduced to 114 grams within seven minutes. Monthly drying operations required only four 3-kg LPG cylinders, resulting in 81 kilograms of dry maggots and a potential monthly income of IDR 4.050.000. Environmental degradation caused by tofu waste has been significantly mitigated, while local economic productivity has improved. The drying machine enhances the commercial value of maggots as durable livestock feed. The initiative strengthens the operational sustainability of the Krida Manik Waste Bank and offers a scalable model for resource-based environmental solutions.
Environmental Conservation Education through Biopore Introduction for Elementary School Students at Sanggar Belajar Kuala Lumpur Handajani, Mudjiastuti; Rohadi, Rohadi; Pramucitra, Sinta Pramucitra; Pinandita, Satria; Anwar, Nik Syahrim Nik
Journal of Community Empowerment Vol. 5 No. 1 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i1.27445

Abstract

As the capital of Malaysia, Kuala Lumpur has not escaped various environmental issues that have worsened due to rapid urbanization, ranging from air pollution to insufficient waste management. This condition requires a creative solution to foster awareness of sustainability from a young age. In response, a community service program titled "Education for Environmental Conservation through the Introduction of Biopori for Elementary School Students at the Kuala Lumpur Learning Studio" was present to introduce the concepts and benefits of biopori technology to children aged 6 to 12. Its main goal is to build early awareness of environmentally friendly practices, especially in flood prevention and organic waste management. Methods used in the program vary widely and interactively, including storytelling, exciting visual presentations, educational games, and video demonstrations. The implementation of this program also collaborates with the Kuala Lumpur Indonesian School (SIKL), which ensures the harmony of culture and education with the target students. The results of the program showed a significant improvement in students' understanding and interest in biopore technology. Many of them are enthusiastic about implementing biopore at home, reflecting expected positive behavioral changes. Post-activity feedback from students and facilitators indicated high levels of engagement and enthusiasm. This initiative demonstrates the effectiveness of early environmental education in building eco-conscious habits. It supports the advancement of community-based science education and contributes directly to the Sustainable Development Goals (SDGs), particularly in clean water and sanitation (Goal 6) and climate action (Goal 13). The program offers a scalable model for integrating environmental awareness into urban education systems.
Implementation of a Solar-Wind Hybrid System for the Posong Nature Tourism Food Court in Tlahab Village, Temanggung Regency Asnawi, Rustam; Nurhening Yuniarti; Slamet Widodo; Dwi Otik Kurniawati; Pinandita, Satria
Journal of Community Empowerment Vol. 5 No. 2 (2025): Journal of Community Empowerment
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jce.v5i2.33932

Abstract

This community service activity was carried out by a team of lecturers and students of Yogyakarta State University (UNY) in Tlahap Village, Kledung District, Temanggung Regency, specifically in the Posong Nature Tourism area. The background of this activity was the limited access to electricity faced by the community managing food courts in the tourist area due to the lack of optimal PLN network coverage. This has an impact on low service quality, limited stall operating hours, and lack of comfort for tourists. Therefore, the community service team presented a renewable energy-based solution in the form of a hybrid system of Solar Power Plants (PLTS) and wind turbines with a capacity of 1,500 watts and 5,000 Wh of energy storage. The method of implementing the activity was carried out through an energy needs survey, socialization, device installation, technical training, and monitoring and evaluation. The community service activity was carried out on August 8, 2025, at 10:00 WIB until finished, attended by the Head of Tlahap Village, the Chairperson and management of Posong Nature Tourism, and 23 local residents, with cloudy and foggy weather conditions but proceeded smoothly. Participants were given an understanding of renewable energy systems, maintenance techniques, handling electrical short circuits, and power usage management to prevent batteries from draining quickly. The results of discussions with the community showed that the application of renewable energy not only provides a solution to electricity needs, but also increases the community's capacity to manage electrical engineering systems independently. Furthermore, the availability of electricity supports the development of food court businesses, tourist comfort, and strengthens Posong's image as an eco-tourism destination. This activity contributes to the achievement of the Sustainable Development Goals (SDG 7: Affordable and Clean Energy, SDG 8: Decent Work and Economic Growth, and SDG 13: Addressing Climate Change). 
Bibliometric visualization of metal-air battery research trends Pinandita, Satria; Asnawi, Rustam; Syamsiro, Mochamad
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 3: September 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i3.pp1865-1880

Abstract

Metal-air batteries are rechargeable secondary batteries with high energy density, typically using carbon electrodes. However, carbon waste poses environmental risks. Fly ash, a byproduct of coal combustion, offers a sustainable alternative due to its high electrical conductivity. This study analyzes research trends on metal-air batteries and fly ash from 2019 to 2023 using bibliometric visualization of Scopus-indexed publications. The keyword search was refined from 'Battery' to 'Air Battery' and, finally, 'Air Battery' with 'Fly Ash,' yielding 60 relevant articles. Using the VOSviewer, research patterns, key focus areas, and collaboration networks were identified. The results indicate a 14.87% increase in publications from 2019 to 2023, with significant growth from 2019 to 2021 before declining after 2022. This fluctuation suggests shift in research interests toward other battery technologies. Fly ash demonstrates potential as a carbon substitute for air batteries, promoting sustainability. However, further research is needed to optimize its application and address technical challenges. Bibliometric visualization highlights a growing interest in fly ash for environmentally friendly battery development due to its abundance and sustainability.
Co-Authors Al Amin, Anggara Fuad Anwar, Nik Syahrim Nik Ari Endang Jayanti, Ari Endang Ari Endang Jayati Arif Fajar Nugroho Derman, Derman Djoko Soelistya Dwi Otik Kurniawati Elawati, Nunung Eni Eva Desembrianita Kharisma, Amrul Mochamad Syamsiro Mudjiastuti Handajani Nurhening Yuniarti Pramucitra, Sinta Pramucitra Puji Lestari, Diah Aryati Purwanti, Hani Ramadan, Bimastyaji Surya Rohadi Rohadi Rustam Asnawi Saputra, Dian Nova Slamet Widodo Supari Supari Supari, Supari