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All Journal e-Jurnal Arus Elektro Indonesia Jurnal IPTEK PROtek : Jurnal Ilmiah Teknik Elektro EPI International Journal of Engineering Journal of Applied Engineering and Technological Science (JAETS) Sultra Journal of Mechanical Engineering (SJME)
Mustofa Mustofa
Department Of Mechanical Engineering, Engineering Faculty, Tadulako University, Palu
Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Temperature Control of Soft Drinks on Vehicle with Portable Storage Thermoelectric Cooler Basri Basri; Mustofa Mustofa; Daud Patabang; Yuli Asmi Rahman; Wahyu Haryadi Piarah
EPI International Journal of Engineering Vol 1 No 2 (2018): Volume 1 Number 2, August 2018 with Special Issue on Railway Engineering
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.082018.07

Abstract

This study aims to design a control system with fuzzy logic on a system of cooling the storage of soft drinks with thermoelectric coolers. This storage can be carried in a vehicle using a DC electric power from a photovoltaic solar cell mounted on the roof of the car. Under certain conditions the energy source of cigarette lighter in a car can replace the solar cells. The test results show that a temperature of 15oC can be reached within 30 minutes with fuzzy control, while without fuzzy control the time needed in 63 minutes, 30 minutes longer.
Mathematical Modeling in Combining Photovoltaic and Thermoelectric Generator Using a Spectrum Splitter Hariyanto Hariyanto; Mustofa Mustofa; Zuryati Djafar; Wahyu H. Piarah
EPI International Journal of Engineering Vol 2 No 1 (2019): Volume 2 Number 1, February 2019 with Special Issue on Composite Materials & Stru
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022019.13

Abstract

The experimental stages of converting solar energy into electrical energy in Photovoltaic and Thermoelectric Generator (PV-TEG) hybird ​​takes a long time. Modeling is one approach to find out the initial data before conducting experiments leading to minimize design errors, time and budget. A mathematical model is created to analyze the performance of a PV-TEG hybrid module. Modeling is performed as an electrical circuit equivalent to Kirchoff's Curent Law (KCL) by deriving several equations corresponding to the characteristics of each module. Type of PV is amorphous Silicon (a-Si), while TEG is Bismuth Telluride (Bi2Te3). The AM1.5D standard solar spectrum is splitted its wavelength spectrum using hot mirror, where the wavelengths of 400-690 nm are transmitted to PV and 690-1150 nm are reflected to TEG. All of PV-TEG hybrid parameters, for example intensity, temperature, and material property are obtained from the specification data of each module. As a results, the maximum total power is 0.0437 W with 5.1% its efficiency.
Optimum Investigation LED Bulbs Light as Photon Energy on Photovoltaic Panel Installed Inside Buildings Mustofa Mustofa; Anjar Asmara; Yuli Asmi Rahman; Tutang Muhtar Kamaludin; Hariyanto Hariyanto; Zuryati Djafar; Wahyu Hariyadi Piarah
EPI International Journal of Engineering Vol 4 No 2 (2021): Volume 4 Number 2, August 2021
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/10.25042/epi-ije.082021.02

Abstract

This study was conducted to obtain the angle of elevation of solar panels (PV) to harvest photon light energy sources from LED bulbs that are often used in residential homes or buildings. The PV tilt angles tested are 0, 15, 30 and 90º by placing a constant bulb in its position. The results of the observations show that a slope of 0º produces the highest PV electrical power, although it is not significant compared to the other 3 slope angles. The decrease in PV output power occurs when the slope angle increases. Optimum power of 16.93 Watt is obtained by using a Hannochs bulb at a power of 15 Watt with an angle of elevation of 0º. Furthermore, the power decreased to 16.33, 12.92, and 12.91 Watts at angles of 15, 30 and 90º, respectively. Further research is still needed by increasing the variation of bulb power above 15 Watts to validate the position of the PV panels on the walls of the building according to light source.
Desain Hybrid Panel Surya Tipe Monocrystalline dan Thermal Kolektor Fluida Air Mustofa; Ramang Magga; Yusnaini Arifin
Jurnal IPTEK Vol 19, No 2 (2015)
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2015.v19i2.11

Abstract

Tujuan penelitian ini adalah mendesain dan menguji hybrid panel surya type monocrystalline daya 60 Wh pada laju aliran fluida 0,027 kg/s. Dari hasil beberapa penelitian sebelumnya menunjukkan bahwa panel monocrystalline menyerap panas yang besar dibandingkan dengan yang jenis polycrystalline pada kondisi cuaca yang sama. Jika ini terjadi dalam jangka waktu yang lama, maka suhu permukaan panel akan semakin tinggi yang berimplikasi menurunnya efisiensi elektrik dan/atau konversi energi panas menjadi energi listrik akan berkurang. Oleh karena itu dibutuhkan media pendingin yang saling menguntungkan. Artinya dengan menhybrid dengan sirkulasi fluida (T) pada photovoltaic (PV) atau PVT, akan mempertahankan bahkan meningkatkan efisiensi elektrik PVT meskipun efisiensi thermal pada artikel ini masih perlu ditingkatkan. Disamping itu, arus yang dihasilkan lebih besar jika dengan PVT dibandingkan PV, sementara tegangan listrik cenderung tetap. Efisiensi elektrik maksimum PVT yang dihasilkan adalah sekitar 18,87% dengan suhu air panas sekitar 49oC, sementara yang PV adalah 10,89%. Ada peningkatan sekitar 8% yang menunjukkan hasil yang signifikan.
Variasi Jarak Titik Fokus Cahaya Foton Pada PV Yang di Hibrid dengan TEG Menggunakan Pemisah Spektrum jenis Hot Mirror Mustofa Mustofa
Jurnal Arus Elektro Indonesia Vol 8 No 2 (2022)
Publisher : Fakultas Teknik, Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jaei.v8i2.32353

Abstract

Titik fokus lensa Fresnel memiliki peranan penting untuk menangkap energi foton yang dihasilkan bohlam LED yang digunakan sebagai energi input pada PV yang di hibrid dengan TEG. Penelitian ini bertujuan untuk melihat jarak focus terbaik PV dengan sumber energy cahaya bohlam mengunakan lensa Fresnel. Variasi titik fokus ada 3 bagian; pada titik focus lensa Fresnel (LF) itu sendiri yang sesuai spesifikasinya (11 cm jarak antara lensa dan modul PV), 1 cm di bawah titik fokus LF dan 1 cm di atas titik focus LF. Hasilnya menunjukkan bahwa posisi menjauh dari spesifikasi titik fokus lensa memberikan energi foton yang lebih besar dibandingkan dengan pada posisi titik fokusnya, dan di atas titik fokusnya. Ini terlihat dari arus listrik PV yang dihasilkan terbesar pada posisi di bawah titik fokus tersebut (0.65 mA) dengan efisiensi hibrid pada titik ini sebesar 13.55%. Daya yang dihasilkan berpotensi diaplikasikan sebagai charging mobile phone, power bank dan sejenisnya.Kata Kunci — posisi PV, hibrid PV-TEG, LED, hot mirror.
Kaji Eksperimen Jarak Optimal Panen Energi Foton Bohlam LED untuk PV Polycrystalline Mustofa Mustofa
PROtek : Jurnal Ilmiah Teknik Elektro Vol 9, No 2 (2022): PROtek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v9i2.4678

Abstract

LED type bulb light is generally widely used in building spaces in Indonesia today because it is more energy efficient than other types. The purpose of this study is to utilize the light bulb as a new photon energy source and free no night for a 50 Wp Solar PV panel that generates new electrical energy. Experimentally, it is to be known at what distance the best absorption of photon energy is between the light source and the PV panel. The results showed that the maximum power (0.1 Watt) was obtained at a distance of 20 cm with the 40 Watt Mavel LED type, while the highest efficiency (1.3%) with Philips bulb lightat a distance of 29 cmfrom the panel.The potential for the use of LED bulb light as lighting at night as well as as a new source of electrical energy –PLTBoh in closed indoor PV installations looks quite good. Therefore the incorporation of PV with solar energy during the day and bulb energy at night will help charging and storage of electrical energy on batteries for the availability of alternative electrical energy dc electronic devices even AC
Pengaruh air mass matahari terhadap kinerja sel surya (photovoltaic) tipe polycrystalline Mustofa Mustofa
Sultra Journal of Mechanical Engineering Vol 1 No 1 (2022): Sultra Journal of Mechanical Engineering
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Sulawesi Tenggara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (251.374 KB) | DOI: 10.54297/sjme.v1i1.331

Abstract

Banyak parameter yang mempengaruhi kinerja panel photovoltaic (PV). Parameter seperti debu, suhu, polusi, kelembaban dan radiasi matahari adalah yang umum. Ada juga parameter lain yang masih jarang diteliti. Parameter ini merupakan pengaruh perubahan spektrum massa udara atau air mass (AM) sinar matahari yang mencapai permukaan bumi. Konsep AM adalah pembiasan udara yang mengacu pada panjang gelombang yang melewati pembiasan atmosfer, karena pembiasan atmosfer membelokkan jalur sinar matahari dari atmosfer ke permukaan bumi. Penelitian ini bertujuan untuk mengetahui pengaruh AM surya terhadap performansi PV tipe polycrystalline. AM yang akan dihitung besarnya adalah pada panel PV dengan sudut elevasi 30° dan 40°. Hasil penelitian menunjukkan efek AM terlihat jelas pada arus, tegangan dan penyinaran sinar matahari yang diterima oleh PV, dimana efisiensi tertinggi diperoleh pada AM sekitar 1,5 dan pada sudut 40° dengan efisiensi 10,60%, karena AM 1,5 angka dari pengamatan menunjukkan posisi matahari tepat di atas ufuk. sehingga hamburan cahaya mengenai permukaan PV dengan melihat posisi sudut zenith tegak lurus atmosfer. AM 1.5 ini juga digunakan sebagai standar laboratorium dan simulasi untuk penelitian PV.
Correlation of Sunlight Intensity and Output Voltage on Collector Plate-based Cascaded Thermoelectric Generator Modules Zuryati Djafar; Abdul Halim; Mustofa Mustofa; Lita Asyriati Latif; Wahyu Haryadi Piarah
PROtek : Jurnal Ilmiah Teknik Elektro Vol 10, No 3 (2023): PROtek : Jurnal Ilmiah Teknik Elektro
Publisher : Program Studi Teknik Elektro Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/protk.v10i3.6375

Abstract

The intensity of solar energy is an important factor in viewing the performance of the thermoelectric generator (TEG). Most studies only look at the effect of treatment on the TEG module in the form of cooling mode and its materials. Therefore this study examines the effect of the solar intensity value on the magnitude of the module voltage. On the hot side of the module are placed heat absorber plates of copper, Fe and aluminum plates as well as non collector plates. Modules are cascaded and connected in series as many as 14 modules per plate, so that a total of 56 TEG modules are used. Data collection is carried out simultaneously on all plates. The test results show that the increase in solar intensity is liner with the magnitude of the TEG module voltage or in other words the correlation is positive. The data also shows that copper collector plates produce the highest voltage difference, followed by Ferro, Alumina and no-plates at ∆V 0.871, 0.805; 0.369 and 0.153 V, respectively
Design of Comprehensive Monitoring on Hybrid Photovoltaic and Thermoelectric Generator Using IoT Yuli Asmi Rahman; Andi Arham Adam; Samnur Samnur; Basri Basri; Khairil Anwar; Rustan Hatib; Mustofa Mustofa
Journal of Applied Engineering and Technological Science (JAETS) Vol. 6 No. 1 (2024): Journal of Applied Engineering and Technological Science (JAETS)
Publisher : Yayasan Riset dan Pengembangan Intelektual (YRPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37385/jaets.v6i1.5764

Abstract

The study aims to design and develop a more efficient measurement monitoring system based on influential parameters for the performance of hybrid PV and TEG modules using IoT with the Thingspeak application. The parameters measured include the PV top and bottom surface temperatures and output current and voltage, the surface temperatures of the TEG's hot and cold sides, their respective current and voltage outputs, air humidity, and solar intensity. This IoT-based monitoring system experimental method utilizes two types of PV, polycrystalline and monocrystalline, each rated at 50 Wp, in a hybrid configuration with 5 TEG modules attached to the back of the solar panel. The monitoring design results indicate that sensor measurements were accurate and data readings were reliable. The temperature difference between the two sides of the TEG was measured up to 21.7°C, and the hybrid efficiency of the monocrystalline PV with TEG showed better results compared to the polycrystalline setup, achieving optimum efficiency above 6%, with the PV surface temperature maintained at an average of 50°C. Additionally, IoT monitoring revealed the effect of air humidity on TEG performance: lower air humidity resulted in a larger ?T, peaking at 21.7°C with humidity at 39.1%. Therefore, this study recommends using IoT technology for observational data collection on system performance, particularly for PV and TEG, with sensor component modifications tailored to the characteristics of the targeted sensor object.
Co-Authors Abdul Halim Andi Arham Adam Anjar Asmara Basri Basri Basri Basri Daud Patabang Hariyanto Hariyanto Khairil Anwar Lita Asyriati Latif Ramang Magga Rustan Hatib Samnur . Wahyu H. Piarah Yuli Asmi Rahman Yusnaini Arifin Zuryati Djafar Zuryati Djafar