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All Journal Diglossia JURNAL PengaMAS Journal on Education EVOLUSI : Jurnal Sains dan Manajemen Infotekmesin Jurnal E-Komtek Procedia of Social Sciences and Humanities
Betti Widianingsih
Politeknik Negeri Cilacap
Humanities Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Mechanical Engineering Social Sciences

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Optimalisasi Kapasitas Rooftop PV System Skala Rumah Tangga di Perumahan Riyani Prima Dewi; Fadhillah Hazrina; Betti Widianingsih
Infotekmesin Vol 13 No 1 (2022): Infotekmesin: Januari, 2022
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v13i1.937

Abstract

One of the renewable energies in Indonesia is solar energy. The geographical condition of Indonesia, which is a tropical country, is one of the advantages it has for applying solar energy. The Indonesian government is gradually regulating the population system for Solar Power Plants (PLTS). The resident system is in demand because of the advantage that it can be connected to the PLN grid and used as an energy reserve. The installation of rooftop PLTS both in government buildings and on the roofs of houses has now become a common trend in the community as a form of participation in the use of New and Renewable Energy (EBT). Before installing PLTS Roofs, it is necessary to determine in advance how much capacity will be installed. This is also related to the community's question, what is the percentage of electricity costs if PLTS roofs are installed in bulk. These designs and calculations are generally carried out with the help of simulations. To discuss these problems, in this article, we will discuss a simulation of the potential for electrical energy generated from rooftop solar power plants in Cilacap Green Smart Living housing. The simulation was carried out with the help of the SolarGIS PV lunar device. Analytical calculations are carried out by software based on input of regional location and solar irradiation. SolarGis will calculate the daily output power generated by the rooftop PV mini-grid and the average monthly and yearly power. The simulation results show that one house with a daily energy requirement of 13 kWh by installing a rooftop PLTS with a capacity of 3 kWp, the demand for electrical energy imported from the PLN network to the house is only 7.8% in one year.
English Language Training for Local Community in the Tourism Site of Karang Talun Mangrove Forest, Cilacap, Central Java Betti Widianingsih; Dodi Satriawan; Fadhillah Hazrina; Novita Asma Ilahi; Riyani Prima Dewi; Devi Taufiq Nurrohman
Procedia of Social Sciences and Humanities Vol. 1 (2021): Proceedings of the 2nd International Conference On Intelectuals Global Responsibility
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/pssh.v1i.45

Abstract

Mangrove Forest which is located at Karang Talun village, Tritih Kulon sub-district, North Cilacap, Central Java has a various potentials to develop. Its development can be conducted by utilizing local community for participating to improve with mastery of English language. Thus, it is necessary to conduct empowerment of local community through English language training to create qualified ones who can support in tourism field. The purpose of this training is to improve their English language skill and increase their economy and be able to survive by being local tour guide in the New Normal. There were 15 participants consist of traders and some employees who work in Mangrove forest. It was conducted for three days and used some methods, namely preaching method i.e, giving theory and practice learning on each unit of learning and drilling and repetition method. In addition, they were given pre test and post test to evaluate each participant’s skill. From the result, the participant’s skill in pronunciation, vocabulary and practicing dialogue has improved, but it still needs more practices. Drilling and repetition method in learning activity has been success to be applied for participants
PEMBERDAYAAN MASYARAKAT PESISIR HUTAN MANGROVE MELALUI PENGEMBANGAN PRODUK PANGAN OLAHAN DARI BUAH TANCANG DI KELURAHAN TRITIH KULON, KABUPATEN CILACAP Sari Widya Utami; Artdhita Fajar Pratiwi; Betti Widianingsih; Dodi Satriawan
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Publisher : UNIVERSITAS KHAIRUN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/pengamas.v5i2.3017

Abstract

Hutan mangrove selain berfungsi sebagai kawasan konservasi tetapi juga dapat menjadi agen pembangunan pariswisata dan perekonomian penduduk yang tinggal di sekitar kawasan hutan mangrove. Berbagai potensi  hutan mangrove di Kelurahan Tritih, Cilacap belum dimanfaatkan dengan baik oleh penduduk sekitar, khususnya hasil dari pohon mangrove seperti buah-buahan mangrove. Buah Tancang merupakan salah satu buah mangrove dengan kandungan karbohidrat yang tinggi belum diketahui oleh masyarakat yang tinggal  di kawasan hutan mangrove tersebut. Kurangnya pemahaman dan pengetahuan masyarakat di sekitar wisata hutan mangrove terhadap teknologi pemanfaatan produk dari buah tancang menyebakan potensi pengambangan produk olahan dari buah tersebut belum optimal. Ketersediaan buah tancang yang cukup melimpah di daerah tersebut, mendorong tim pengabdian masyarakat untuk memberikan pelatihan pengolahan buah tancang. Tujuan dari pelatihan ini adalah meningkatkan pengetahuan dan keterampilan masyarakat dalam mengolah buah tancang. Pelatihan dilaksanakan dengan metode diskusi dan praktek. Hasil pelatihan yaitu berupa adanya peningkatan kemampuan masyarakat yang ditunjukkan dengan adanya hasil pengembangan produk pangan olahan dari buah tancang.
Implementation Of Multimedia Development Life Cycle Using Android-Based Augmented Reality In Recognition Of Widarapayung Beach Landmark To Increase Tourism Supporting Capacity of Cilacap Lutfi Syafirullah; Annas Setiawan Prabowo; Abdul Rohman Supriyono; Riyadi Purwanto; Betti Widianingsih; Rostika Listyaningrum; Dodi Satriawan
Evolusi : Jurnal Sains dan Manajemen Vol 10, No 2 (2022): Jurnal Evolusi 2022
Publisher : Universitas Bina Sarana Informatika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31294/evolusi.v10i2.13765

Abstract

Abstract               There are many beach tourist destinations in Cilacap Regency, Central Java that can be visited, one of which is Widarapayung beach. Widarapayung Beach is located in Binangun District, Cilacap Regency which is managed under the auspices of the Cilacap Regency Tourism and Culture Office whose implementation is managed by the KODIM 0703 Cilacap Cooperative. The impact of the COVID-19 pandemic and the implementation of the PSBB caused the manager to have difficulty in providing information regarding the facilities available at Widarapayung Beach to potential visitors.                During the pandemic and the implementation of the PSBB, all information publications on Widarapayung beach were limited. Not all information about Widarapayung beach is known by the surrounding community or people from outside Cilacap. One of the multimedia developments that can provide visitors with the introduction of Widarapayung beach landmarks to make it easier to find more interesting information about Widarapayung beach by developing Augmented Reality technology. The result of this research activity is to implement Augmented Reality technology for the introduction of Widarapayung beach landmarks, Cilacap Regency so that visitors can more easily find out the facilities and information in Widarapayung based on Android. Keywords: augmented reality; landmark; widarapayung beach
Structured Writing Assignment: The Teacher’s Strategies And The Students’ Perrception Nia Dharma Pertiwi; Nur Widiastuti; Betti Widianingsih; Rodiyal Ihsan; Maria Ermilinda Dua Lering; Arief Yanto Rukmana
Journal on Education Vol 6 No 1 (2023): Journal On Education: Volume 6 Nomor 1 Tahun 2023
Publisher : Departement of Mathematics Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/joe.v6i1.3563

Abstract

The structured writing assignment as a learning method in English learning process applied by teacher in the classroom. The research was conducted to know what the teacher’s strategies and the students’ Perception of the Structured Writing Assignment. this research, the researcher used qualitative research, the researcher used observation and interview in collecting data and the thematic analysis in analyzing the data. The respondents in this research were the students of grade ten of A and B and an English teacher. The results of data collection and the data analysis, it showned that the teacher has applied his own design in implementing the Structured Writing Assignment. Those general steps are: (1) Explained the procedure text in details (2) Giving the themes (3) Giving the time limit (4) Evaluating. The students’ perception toward the Structured Writing Assignment were : (1) Assignment which demand the students’ autonomy (2) The presence of the Structured Writing Assignment has made the students interested and felt it is like challenging assignment (3) The Structured Writing Assignment as assignment’s that can improve the students’ vocabularies and grammar capability (4) It can also motivate the students to learn more at home optimally. The students’ problems/difficulties in the structured Writing Assignment are: (1) They lack vocabulary (2) The students have less sources to support their assignment (3) The students claimed that the time limit given by the teacher is not enough. The English teacher was expected to developed creativity and created pleasant condition in teaching/learning process. Then, they were also expected to develop the teaching strategy appropriately for students and design it in implementation the Structured Writing Assignment to be more interesting than before.
Analisis Kesalahan (Error Analysis) Hasil Terjemahan Teks Inggris ke Indonesia Oleh Mahasiswa Politeknik Negeri Cilacap Betti Widianingsih
Diglossia: Jurnal Kajian Ilmiah Kebahasaan dan Kesusastraan Vol. 10 No. 2 (2019): April
Publisher : Unipdu Jombang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26594/diglossia.v10i2.1431

Abstract

This research aims to find out and describe type of error employed by students in translating english text into indonesian text. The author used qualitative research approach to describe type of translation The step of the data analysis consists of 1) recognition; 2) description; 3) explanation; 4) evaluation and 5) correction. From the result of the research, there were 284 errors employed by students from 3 study programs. Based on the taxonomy of perfomation category, it was found that there were 4 types of errors employed by the students of State Polytechnic of Cilacap, i.e., omission 33 data (11,61%), addition 15 data (5,28%), misformation 197 data (69,36%) and misordering 39 data (13,73%). From the findings, it can be concluded that Electrical Engineering students often did errorsin translating, especially misformation. Keywords : word, phrase, clause, translation, error analysis
Desain Pompa Air Tenaga Surya Untuk Fasilitas Publik Dengan Software Pvsyst Vicky Prasetia; Hera Susanti; Muhammad Yusuf; Betti Widianingsih
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2726

Abstract

Solar energy has great potential as an alternative energy source in Indonesia, but its application for water pump systems in public facilities such as railway stations remains limited. This study aims to design a solar-powered water pumping system (PATS) to meet the water demands at Kroya Station using PVsyst software. The methodology includes site analysis, calculation of daily water requirements, power estimation, and system simulation using PVsyst. The simulation results indicate that the designed system meets 97.5% of the annual water demand of 2,555,000 liters, with a solar panel efficiency of 80.4% and a pump efficiency of 18.5%. The novelty of this study lies in the design of a PATS system for a railway station using simulation-based analysis with PVsyst—an approach not widely applied in public transportation facilities. These findings offer a technical basis for environmentally friendly and sustainable solar pump system planning.
Kontrol Kecepatan Berbasis PWM (Pulse Width Modulation) Untuk Mesin Pemarut Kelapa Bertenaga Surya Fadhillah Hazrina; Riyani Prima Dewi; Betti Widianingsih; Laura Sari; Mifta Zulfahmi Muassar
Infotekmesin Vol 16 No 2 (2025): Infotekmesin: Juli 2025
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v16i2.2794

Abstract

Solar energy is a new renewable energy (EBT) that can be used as an alternative energy source for electricity generation to replace fossil fuels or supplies from the National Electricity Company (PLN). One of its uses can be applied in everyday life in household appliances, namely, coconut grater machines. Coconut grater machines used in the market still use fossil fuels to crush coconut meat, so solar energy is implemented as an alternative energy to operate the coconut grater machine. The use of solar panels in this study is highly dependent on sunlight exposure. In addition, the tilt position of the solar panel can also determine the power generated by the solar panel. The tilt position of the solar panel can be manually adjusted according to the direction of sunlight at certain times. Around midday, sunlight can be captured optimally. At that time, the accumulator/battery will quickly charge, and the coconut grater machine can be used at low or high speeds. The purpose of this study is to implement a PWM (Pulse Width Modulation) system-based control as a motor speed regulator on a coconut grater machine. PWM technology is installed to obtain optimal rotation results and has the potential to save electrical energy. The research results showed that the installed solar panels could produce an average of 4.86 watts of electrical power at 8:00 a.m. WIB and a maximum of 5 watts of electrical power at 12:00 p.m. WIB. Under no-load operating conditions, the current was 0.38 A and the motor speed was 3,724 Rpm. When the engine was tested under load, the speed was 2,926 Rpm.
Optimization of Photovoltaic Performance Through the Implementation of a Photodiode-Controlled Dual-Axis Solar Tracking Mechanism Riyani Prima Dewi; Saepul Rahmat; Betti Widianingsih; Gilang Saputra; Afrizal Abdi Musyafiq; Novita Asma Ilahi
Jurnal E-Komtek Vol 9 No 2 (2025)
Publisher : Politeknik Piksi Ganesha Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37339/e-komtek.v9i2.2865

Abstract

Indonesia has abundant renewable energy resources that support efforts toward energy independence and long-term energy security. However, photovoltaic (PV) modules are commonly installed in a fixed orientation, which limits solar energy absorption as irradiance varies with the sun’s position. To address this issue, this study employs a photodiode-based dual-axis solar tracking system capable of continuously aligning the panel with the sun’s trajectory. The photodiodes detect the direction of incoming sunlight, enabling real-time orientation adjustments to improve energy harvesting. Experimental results show that the dual-axis tracker produces an average output of 20.51 V and 0.98 A, compared to the static PV module with 19.97 V and 1.07 A.
Co-Authors Abdul Rohman Supriyono Afrizal Abdi Musyafiq Annas Setiawan Prabowo Arief Yanto Rukmana Devi Taufiq Nurrohman Dodi Satriawan Fadhillah Hazrina Gilang Saputra Hera Susanti Laura Sari Lutfi Syafirullah Maria Ermilinda Dua Lering Mifta Zulfahmi Muassar Muhammad Yusuf Nia Dharma Pertiwi Novita Asma Ilahi Nur Widiastuti Riyadi Purwanto Riyani Prima Dewi Rodiyal Ihsan Rostika Listyaningrum Saepul Rahmat Sari Widya Utami Vicky Prasetia