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The Effect of Light Type and Distance on Indoor Photovoltaic System Pratiwi, Dessy Ade; Soumi, Andi Ibrahim; Kurniawan, Wafiq
JTERA (Jurnal Teknologi Rekayasa) Vol 8, No 2: December 2023
Publisher : Politeknik Sukabumi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31544/jtera.v8.i2.2023.271-278

Abstract

Alternative energy sources and energy storage play an important role in maintaining and providing energy. The application of indoor photovoltaic is one alternative in energy management using artificial light sources. However, one of the main obstacles faced in the operation of photovoltaic panels is the significant problem of low electrical efficiency in photovoltaic cells. The purpose of this research is to find out the performance of indoor photovoltaic with variations of LED and CFL lamps with a capacity of 5W and 10W, as well as the variation of the given distance which is 25 cm and 30 cm. The research method used is to test the temperature sensor using the MAX 6675 sensor and the voltage and current sensor using the MAX471 sensor. The light intensity produced by the lamp is read by the sensor. The electricity produced by photovoltaic is stored in the battery. The results read by the sensors are displayed on the serial monitor. The results of the research show that increasing the distance between the lamp and the light field results in a decrease in light intensity. This can be seen in the CFL lamp with a longer distance between the light source and the solar cell module which results in the light intensity of the 5W 30 cm CFL lamp being low. The decrease in the efficiency of photovoltaic systems in the room has an effect on the temperature that the increase in photovoltaic temperature causes a decrease in the efficiency of the current and voltage of the electricity output.
Identifikasi Unjuk Kerja Mesin 4 Langkah Variasi Busi dan Koil Pengapian Muhammad, Rouf; Ardika, Rizki Dwi; Soumi, Andi Ibrahim; Pramanda, Wibi; Safi'i, Muhamad
JURNAL CRANKSHAFT Vol 7, No 2 (2024): Jurnal Crankshaft Vol.7 No.2 (2024)
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v7i2.12745

Abstract

The most critical component of a motorcycle's combustion process is the spark plug, which fires sparks for the ignition system. In this research, the performance of several spark plug electrode gap diameters and materials was varied to detect how much they affected engine performance, fuel consumption, and emissions. Engine testing was conducted on a 110-cc four-stroke engine. Nickel material spark plugs with a gap dimension of 0.9 mm, platinum material spark plugs with a gap dimension of 0.8 mm, iridium material spark plugs with a gap dimension of 0.7 mm, and two types of ignition coils. The test findings indicated that there is a spark plug with an appropriate gap for engine performance in the form of torque and power in the B2 configuration, which has a gap of 0.8 mm. Increasing the spark plug gap produces a loss in engine performance, but it also increases it. There is an optimal point of fuel consumption in configuration B2, where raising the spark plug gap decreases fuel consumption while increasing the spark plug gap increases fuel consumption. Exhaust emissions likewise experience an optimal point in configuration B2, when exhaust emissions rise as long as the spark plug gap is increased once more, HC and CO levels decrease with an increasing spark plug gap. To examine the study on the impact of spark plugs with electrode gaps and ignition coils on engine performance, fuel consumption, and emissions. This can provide insight into a reference technique for using spark plugs and ignition coils.
STUDI NUMERIK PENGARUH LEBAR SPESIMEN TERHADAP SIFAT TARIK AISI 1010 MENGACU PADA ASTM E8 Yasin, Iskandar; Soumi, Andi Ibrahim
Civil Engineering and Technology Journal Vol. 7 No. 2 (2025): CivETech (in Progress)
Publisher : Fakultas Teknik Universitas Cokroaminoto Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penelitian ini bertujuan untuk mengevaluasi pengaruh variasi lebar spesimen terhadap sifat mekanik tarik baja karbon rendah AISI 1010 melalui pendekatan simulasi numerik berbasis metode elemen hingga (Finite Element Analysis/FEA) menggunakan perangkat lunak Ansys Workbench. Spesimen uji tarik dimodelkan dalam bentuk dog-bone sesuai standar ASTM E8 dengan dua variasi lebar daerah ukur, yaitu 6 mm (sub-size specimen) dan 12.5 mm (standard specimen). Parameter material dimasukkan berdasarkan data sifat mekanik AISI 1010, sedangkan pembebanan diberikan dalam bentuk kendali perpindahan aksial pada ujung penjepit. Hasil simulasi menunjukkan bahwa spesimen dengan lebar 12.5 mm memiliki tegangan maksimum dan deformasi plastis yang lebih tinggi serta distribusi regangan yang lebih homogen dibandingkan spesimen 6 mm. Sebaliknya, spesimen berlebar 6 mm cenderung mengalami konsentrasi regangan pada daerah transisi fillet–gage sehingga kekuatan tarik yang diperoleh lebih rendah. Temuan ini menegaskan bahwa pemilihan lebar spesimen sesuai standar ASTM E8 berperan penting dalam memperoleh hasil uji tarik yang representatif dan akurat. Penelitian ini memberikan kontribusi dalam memperkuat pemahaman mengenai pengaruh geometri spesimen terhadap karakterisasi sifat mekanik material serta menjadi rujukan bagi penelitian dan pengujian lanjutan yang menggunakan pendekatan simulasi numerik.
Analisa Performa Modul Thermoelectric Generator Dengan Memanfaatkan Panas Buang Pada Kompor Tungku Dengan Variasi Bahan Bakar iwan, Muhammad; Basri, Abdul; Soumi, Andi Ibrahim; Septendri, Barep
Suara Teknik : Jurnal Ilmiah Vol 14 No 2 (2023): Suara Teknik: Jurnal Ilmiah
Publisher : Fakultas Teknik UM Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29406/stek.v14i2.6091

Abstract

Abstrak Modul thermoelectric yang diaplikasikan pada kompor merupakan sebuah alternatif untuk menghasilkan listrik dari perbedaan suhu dengan prinsip seebeck, namun perbedaan bahan bakar pada kompor mempengaruhi luaran listrik yang dihasilkan. Penelitian ini bertujuan untuk menganalisa pengaruh penggunaan variasi bahan bakar terhadap performa modul thermoelectric dalam penerapan pada kompor untuk menghasilkan listrik. Penelitian ini dilakukan dengan menggunakan delapan modul thermoelectric tipe SP 1848 27145 SA yang diapit oleh aluminium setebal 8mm pada sisi panas dan water block pada sisi dingin, kemudian ditempelkan pada dinding kompor tungku. Percobaan dilakukan dengan membakar tiga jenis bahan bakar secara bergantian yaitu arang kayu asam, briket batok kelapa, dan batubara dengan berat yang sama yaitu 300 gram. Hasil penelitian menunjukkan bahwa arang kayu asam merupakan bahan bakar yang paling baik digunakan dengan luaran daya modul thermoelectric sebesar 8.91 W, diikuti oleh briket batok kelapa dengan luaran sebesar 1.04 W dan batubara sebesar 0.96 W.Kata Kunci : Modul Thermoelectric, Kompor Tungku, Bahan Bakar