Abstract---This study aims to develop an interactive learning media on the subject of Electrical Engineering (Teknik Listrik); to determine the feasibility of the media developed, and to know the students' responses. Learning media is an important component in the learning process. Technology and computerbased media is one of the media needed. It aims to attract students to learn the material, especially material that need more efforts to understand. Media development is created due to lack of students' interest, motivation, and in the subject. The media was developed using ADDIE model, namely analysis, design, development, implementation, and evaluation. Questionnaires were used for data collection. The media was tested in first grade students of vocational secondary school. The results show interactive learning media is considered feasible for use.
Energi terbarukan merupakan energi alternatif untuk masa depan. Potensi akan energi terbarukan di Indonesia sangat besar, salah satunya adalah Pembangkit Listrik Tenaga Air (PLTA). Nilai daya untuk di bawah 500 W merupakan masuk kategori picohidro. Aliran sungai yang ada di setiap kampung di Indonesia menjadi potensi besar dalam mengembangkan Pembangkit Listrik Tenaga Picohidro. Penelitian ini bertujuan untuk mengetahui pengaruh debit air terhadap tegangan DC pada pembangkit listrik tenaga picohidro. Instalasi pada pembangkit ini terdiri dari; saluran masuk air (inlet), turbin, generator, indikator tegangan, dan saluran buang air (output). Penelitian ini dilakukan secara eksperimen dan dilaksanakan di Sungai Pelang, Sleman, Yogyakarta. Hasil penelitian menunjukkan bahwa semakin tinggi saluran masuk (inlet) dan nilai saluran buang (outlet) nilai debit air akan semakin besar. Semakin besar nilai debit air maka semakin besar Tegangan yang dihasilkan. Nilai debit dan perbedaan elevasi sangat berpengaruh terhadap tegangan output picohidro.
New and renewable energy is one of the hot issues discussed by various energy experts in many countries. As a country that has enormous renewable energy potential, Indonesia has not utilized it optimally. One of the reasons is the inadequate learning of new and renewable energy in schools and colleges. This article will discuss the design and implementation of a Trainer Kit for Hybrid On-Grid Solar Power Generation System (TK-HOGS). With this Trainer Kit, it is hoped that vocational education students will increase their competence in new and renewable energy. This study uses a research and development approach that adopts the ADDIE model. The development stages include Analysis, Design, Development, Implementation, and Evaluation. The results showed: (1) The TK-HOGS can produce an average power of 22.74 Watt with an estimated electrical energy of 136 WH and (2) Media experts and electric power engineers stated that this TK-HOGS is “Very Good” and very suitable to be used to help lecturers in carrying out learning.
Renewable energy is alternative energy for the future. One renewable energy that is easy to develop is solar power generation. In this study, we will discuss the effect of the tilt angle on the solar panel and the value of the intensity of sunlight on the resulting output voltage. The data collection process was carried out at the Mechanical and Electrical Power System Laboratory, Faculty of Engineering, Universitas Negeri Yogyakarta. The data collection stage was carried out at an angle of 0°, 30°, and 60°. The results showed that the smaller the value of the intensity of sunlight, the smaller the output voltage produced. The tilt angle of the solar panel at 30° has a maximum output voltage more significant than the angle of 60° and 0°.
Tujuan dari penelitian ini adalah untuk memproyeksikan kebutuhan energi listrik tiap sektor pelanggan serta beban puncak di Kabupaten Purbalingga hingga tahun 2030 menggunakan software LEAP. Hasil proyeksi diharapkan dapat menjadi acuan dalam penyediaan energi listrik dan guna menjamin ketersediaan energi listrik di Kabupaten Purbalingga. Metode proyeksi kebutuhan energi listrik ini dilakukan dengan pendekatan Ekonometri, Trend, dan End-Use. Tahap- tahap pengembangan dan pembuatan yang terdiri dari: (1) analisis kebutuhan, (2) perancangan simulasi, (3) tahap simulasi, dan (4) proses pengujian dengan dua skenario. Proyeksi kebutuhan energi listrik dalam penelitian ini diuji dengan dua skenario yaitu skenario Business As Usual dan skenario Kebijakan. Hasil proyeksi kebutuhan energi listrik Kabupaten Purbalingga tahun 2030 menggunakan skenario Business As Usual pada sektor pelanggan rumah tangga sebesar 296.015,6 MWh, sektor bisnis 78.311,3 MWh, sektor publik 62.219,4 MWh dan sektor industri sebesar 209.346,3 MWh dengan beban puncak 94,6 MW. Pada skenario kebijakan kebutuhan energi listrik sektor rumah tangga sebesar 297.541 MWh, sektor bisnis 43.129,3 MWh, sektor publik 36.756,2 MWh dam sektor industri sebesar 99.216,6 MWh dengan beban puncak 69,8 MW. Pada skenario Business As Usual diperlukan penambahan kapasitas trafo sebesar 90 MW atau 300% kapasitas sebelumnya namun jika skenario kebijakan yang diterapkan penambahan kapasitas trafo sebesar 60 MW atau 200% dari kapasitas sebelumnya. Penambahan kapasitas trafo diperlukan guna menjamin ketersediaan energi listrik di Kabupaten Purbalingga hingga tahun 2030.
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