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All Journal Jurnal AGROTEKNOLOGI Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Jurnal TEMAPELA Jurnal Pendidikan Fisika dan Teknologi
Suhardi Suhardi
Jurusan Teknik Pertanian, Fakultas Teknologi Pertanian, Universitas Jember
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Materials Science & Nanotechnology Physics

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REKAYASA DAN UJI KINERJA PROTOTIPE DESTILATOR SKALA LABORATORIUM Suhardi Suhardi
JURNAL AGROTEKNOLOGI Vol 9 No 01 (2015)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (423.386 KB)

Abstract

Laboratory equipment is quite expensive so amount of the equipment in the laboratory is very limited, considering the procurement of laboratory equipment is not always needs budgete annually by the college. It takes creativity laboratory manager to improve the performance of laboratory equipment so that the equipment can support educational activities. This research used two steps were: (1) design of destilator prototipe, include: functional and structural design, (2) performance test include: functional test, test alcohol produce, the rate of destilation, dan Efficiency of distillation. Desain and performance test was processed in agricultural engineering laboratory, agricultural technology faculty of Jember Univiersity. The result showed that as a functional and structural design it was can operate with dimensions were, bolier capacity 1 liter, height of destiltor prototype 52cm. At the performance test of alcohol produced showed that the higher of alcohol produced without the perforated plate disc on factionating column was 82.5%. The higher of distilation rate with three the perforated plate discs was 5,75 ml/minute. The higher of distillation efficiency with three the perforated plate discs was 97.41%.Keywords: performance tests, efficiency of distillation, alcohol, distilator prototype
PRODUKSI COCO-BIOFUEL DAN APLIKASINYA PADA MESIN DIESEL DENGAN SISTEM INJEKSI LANGSUNG Soni Sisbudi Harsono; Mukhammad Fauzi; . Suhardi; Lilik Mulyantara
JURNAL AGROTEKNOLOGI Vol 6 No 01 (2012)
Publisher : Faculty of Agricultural Technology, University of Jember

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Abstract

This study is devoted to the performance and emission evaluation of automotive diesel engine as affected by coco biofuel utilization. The concentration of palm biodiesel used in the test was ranged from B0 (pure petro-diesel), B10, B20, B30, B50 and B100 (pure biodiesel). The engine performance was evaluated through torque, power, and specific fuelconsumption, while the emission was evaluated through carbon monoxide (CO), hydrocarbon (HC), particulate matter (PM), carbon dioxide (CO2), and NOx pollutants. The result shows that higher content of palm biodiesel can reduce the emission of CO, HC, PM, and CO2. It was found that the addition of biodiesel could increase the power and torque. Further more, NOx also decreased when the content of palm biodiesel increases, which is in contrast with those generally found in the previous non palm biodiesel studies.Keywords: palm oil biodiesel, petro-diesel, carbon monoxide, hydrocarbon, particulate, matter, O2,and NOx pollutants
Evaluasi Kinerja Prototipe ORIFICE DISCHARGE suhardi suhardi suhardi
Jurnal Teknologi dan Manajemen Pengelolaan Laboratorium Vol 2 No 2 (2019): Jurnal Teknologi Dan Manajemen Pengelolaan Laboratorium (Temapela)
Publisher : Labor Dasar dan Sentral Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (336.513 KB) | DOI: 10.25077/temapela.2.2.59-64.2019

Abstract

Peralatan Orifice discharge merupakan sebuah perangkat yang digunakan untuk mengukur laju aliran air yang keluar melalui outlet dengan diameter 13mm. Aliran air yang melalui piringan berlubang ini akan mengalami kerugian tenaga sehingga menyebabkan perubahan pada parameter pengukuran debit yang menyebabkan terjadi perberbedaan antara debit aktual dengan debit teoritis. Penelitian ini bertujuan untuk mengetahui tingkat akurasi peralatan orifice discharge dalam simulasi pengukuran kecepatan aliran dan debit dengan berbagai tinggi air pada manometer. Penelitian dilakukan dengan pengumpulan data atau sampel dari percobaan di laboratorium menggunakan peralatan orifice discharge. Data yang diperoleh dari pengukuran dianalisis sehingga dihasilkan kelayakan kinerja dari peralatan tersebut. Hasil penelitian menunjukkan bahwa simulasi pengukuran debit dan kecepatan aliran air menggunakan peralatan orifice discharge sangat akurat dengan nilai koefisien kalibarsi 0,77.
Aplikasi Persamaan Rehbock, Kinsvater – Carter, Dan Persamaan Umum Pada Bangunan Ukur Segi Empat Skala Laboratorium Suhardi Suhardi
Jurnal Pendidikan Fisika dan Teknologi (JPFT) Vol 5 No 2 (2019): Juli-Desember
Publisher : Department of Physics Education, Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpft.v5i2.1383

Abstract

The rectangular sharp-crested weir often finds in irrigation open channels. The function of the rectangular sharp-crested weir measures and divides the water flow to be distributed to agricultural lands. The Rehbock equation, the Kinsvater-Carter equation, and the General equation are used to approach the discharge. On a laboratory scale, the measurement of the discharge using a small rectangular sharp-crested weir was used for experiments and simulations. Because of using The Rehbock equation, The Kinsvater-Carter equation, and The General equation for a field discharge measurements, it is necessary to research to find out the accuracy of the Rehbock Equation, the Kinsvater-Carter equation and the General equation in the laboratory scale. The research data included the dimensions of rectangular weirs, the height of the water on the rectangular sharp-crested weir, the width of the channel on the hydraulic bench and the actual discharge. Data collection of the height of water on the rectangular sharp-crested weir and the actual discharge was carried out 5 times the measurements with different discharges. These data were analyzed using the Rehbock equation, the Kinsvater-Carter equation, and the General equation. The discharge of the analysis results was compared with the actual discharge to find out the value of the calibration coefficient. The experimental results show that the Kinsvater-Carter equation and General equation can be applied for discharge measurements on the laboratory scale. The calibration coefficient for the Kinsvater-charter equation was 0.89 and the calibration coefficient for the general equation was 0.94.
RANCANG BANGUN PROTOTIPE SALURAN IRIGASI SKALA LABORATORIUM Suhardi Suhardi
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 8 No 1 (2020): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1379.169 KB) | DOI: 10.29303/jrpb.v8i1.169

Abstract

Pengukuran debit di saluran irigasi dapat dilakukan dengan alat ukur debit berupa bangunan ukur, current meter dan pelampung. Pengukuran debit mengunakan bangunan ukur ini bertujuan untuk efisiensi pengelolaan air irigasi di tingkat petani. Jenis bangunan ukur yang sering digunakan adalah bangunan ukur ambang lebar dan ambang tajam. Betuk bangunan ukur ambang tajam terdiri dari segitiga, trapesium dan segi empat. Berdasarkan uraian tersebut, prototipe saluran irigasi skala laboratorium dilengkapi dengan bangunan ukur ambang tajam segi empat di bagian ujung saluran untuk simulasi dan percobaan pengukuran debit. Tujuan dari penelitian ini adalah rancang bangun prototipe saluran irigasi, uji fungsional dan uji kinerja protipe saluran irigasi. Hasil penelitian menunjukkan bahwa prototipe saluran irigasi berfungsi dengan baik dan dapat digunakan untuk percobaan pengukuran debit. Uji kinerja prototipe saluran irigasi menunjukkan bahwa bak volumetrik sangat akurat untuk pengukuran debit aktual dengan R2 = 0,999. Sementara itu rata-rata koefisien kalibrasi pengukuran debit menggunakan persamaan Kinsvater-carter adalah 0,868 dan persamaan umum adalah 0,983.
RANCANG BANGUN ALAT UKUR EVAPOTRANSPIRASI BERBASIS INTERNET OF THINGS (IOT) Suhardi Suhardi; Bambang Marhaenanto
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 10 No 1 (2022): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1339.596 KB) | DOI: 10.29303/jrpb.v10i1.334

Abstract

Transpirasi merupakan suatu proses pelepasan air yang disertai dengan pelepasan nutrisi mineral dari akar tanaman ke pucuk daun melalui proses fotosintesis. Transpirasi yang tinggi akan menyebabkan kekurangan air terutama di sekitar perakaran. Dengan demikian, transpirasi ini dapat dijadikan pertimbangan untuk menyatakan status ketersediaan air pada tanaman. Tujuan penelitian ini adalah rancang bangun alat lysimeter berbasis IoT untuk mengukur evapotranspirasi aktual di lapangan dengan akurasi sangat baik. Hasil penelitian menunjukkan bahwa lysimeter berbasis IoT berfungsi dengan baik. Begitu pula dengan hasil evaluasi kinerja lysimeter menggunakan Back Propagation Artificial Neural Networks (BPANN) menunjukkan kinerja sangat baik dengan nilai koefisien korelasi R= 0,998343 dengan MSE= 0,00000019 pada tahap training, R= 0,9460054 dengan MSE= 0,0000119 pada tahap validation, dan R= 0,99996 dengan MSE= 0,0000693 tahap testing.
Co-Authors Bambang Marhaenanto Lilik Mulyantara Mukhammad Fauzi Soni Sisbudi Harsono