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INTRODUKSI TEKNOLOGI PENGERING TENAGA SURYA UNTUK MENINGKATKAN PRODUKTIVITAS DAN PENDAPATAN USAHA KERUPUK UBI DI KECAMATAN KAMANG MAGEK KABUPATEN AGAM Adly Havendri; Dendi Adi Saputra; M. Eka Satria; Syafi’i Syafi’i
Jurnal Hilirisasi IPTEKS Vol 1 No 4.b (2018)
Publisher : LPPM Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (880.158 KB)

Abstract

Usaha peningkatan nilai tambah ubi kayu dapat dilakukan dengan cara penganekaragaman produk olahan ubi kayu menjadi bahan setengah jadi (produk antara) yang selanjutnya dapat langsung dipasarkan atau menjadi produk makanan siap saji. Saat ini, di Kecamatan Kamang Magek Kabupaten Agam usaha penganekaragaman produk olahan ubi kayu banyak dilakukan oleh industri skala rumah tangga (IRT). Namun, dalam proses pengolahannya beberapa IRT masih menggunakan teknologi sederhana sehingga produktivitas dan pendapatan usaha terbatas pada kemampuan teknologi yang digunakan. IRT Erna (mitra) masih menggunakan metode pengeringan konvensional berupa pengeringan melalui panas matahari. Hal ini akan menyebabkan ketergantungan produksi kerupuk ubi terhadap perubahan cuaca. Ketersediaan teknologi pengering dengan menggunakan panas buatan sebagai pengganti panas matahari belum mampu menjadi solusi pengering kerupuk ubi bagi IRT pengolah kerupuk ubi di Sumatera Barat. Kerupuk ubi yang dikeringkan secara paksa menyebabkan ketidakmerataan suhu pengeringan pada produk kerupuk ubi. Untuk itu, perlu dilakukan introduksi teknologi pengering tenaga surya yang dirancang berdasarkan kebutuhan mitra. Dari hasil kegiatan ini dapat disimpulkan bahwa teknologi yang diintroduksikan mampu meningkatkan produktivitas produksi kerupuk ubi hingga 2 kali lipat dari proses produksi dengan menggunakan teknologi konvensional sebelumnya.
Perancangan dan Analisis Ekonomi Pembangunan Pembangkit Listrik Tenaga Piko Hidro di Desa Garabak Data Kabupaten Solok Sumatera Barat Adly Havendri; Dendi Adi Saputra; Mulya Cipta Nurmansyah
METAL: Jurnal Sistem Mekanik dan Termal Vol 1, No 1 (2017): Volume 1, No 1 (2017)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (865.909 KB) | DOI: 10.25077/metal.1.1.20-26.2017

Abstract

In this research, development of a pico hydro power plant utilizing the river with water flow 0.6 m3/s and head 1.5 m is conducted. According to the available potential of the area, the waterwheel turbine with type undershot and efficiency about 71-76% is selected. The synchronize generator with 1 phase and 10 kVA capacity is chosen according the maximum generated power of the plant power which is about 8.81 kW. Due to the loses inside the turbine and generator, therefore the average electrical power that can be distributed is 4.96 kW. For stabilizing the voltage and current from the generator, a 7,5 kVA stabilizer with safety factor 20% is used. As the result, the stable electrical power 34.759,68 kWh can be generated every year with the capacity factor about 80%. The design results of the pico hydro power plant indicated that the power plant in Garabak Data able to produce the electrical power about Rp899,05 per kWh.
Kaji eksperimental pengaruh debit dan kemiringan poros terhadap daya mekanik prototype turbin ulir tipe AH-01 dan AH-02 Adly Havendri; Yul Hizhar; Oding Syamiro Perdana
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1284.173 KB) | DOI: 10.25077/metal.5.1.17-22.2021

Abstract

The potential for renewable energy sources in Indonesia is rich enough to be used as an alternative energy source. The availability of hydro energy potential can be developed into a Mini Hydro Power Plant. One type of turbine that has been developed is the Archimedean turbine which is capable of utilizing low headwater sources. The AH-01 and AH-02 screw turbine prototypes have been made at Andalas University and testing was necessary to determine the optimal discharge for mechanical performance. Testing of the screw turbine prototype type AH-01 (screw angle 23°) and AH-02 (screw angle 26°) was carried out by varying the flow rate and shaft angle for the two types of screw turbine prototypes to determine mechanical performance and efficiency of the turbines. The test results show that the AH-02 screw turbine prototype has higher mechanical power than the AH-01 screw turbine prototype. The maximum mechanical power of each AH-01 and AH-02 screw turbine prototype is 5.77 and 7.54 Watts at a flow rate of 0.00139 m3/s.