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Syah, Fahma Ilmian
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Computer Science & IT

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PENGARUH DEBIT AIR PENDINGIN DAN POSISI KONDENSOR TERHADAP HASIL KONDENSASI PIROLISIS GETAH PINUS Syah, Fahma Ilmian
Sainteknol : Jurnal Sains dan Teknologi Vol 18, No 2 (2020): Desember
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v18i2.15120

Abstract

The experiment aim to know the effect of cooling water flow rate and condenser position to the pyrolysis product and the heat transfer rate occurring on the condenser. Flow rate of water as condenser coolantabout 2 L / min, 3 L / min 4 L / min, and 5 L / min. Position of condenser used is horizontal, vertical and slopeabout 45 degree. These variables are used to evaluate the performance of the condenser through the acquisitionof condensed oil and heat transfer rate. The result of the research shows that flow rate of condenser coolantgreatly influences the amount of pine sap oil produced. Increase of condenser coolant water flow the volumeof pine sap oil produced is increasing. The condenser position also affects the amount of volume of pine sapoil produced. The larger the angle of the condenser slope the volume of pine sap oil produced decreases. Thehighest amount of oil is produced at flow rate 5 L / min at a horizontal condenser position with an oil amountof 71 ml, and the least amount of oil produced at a flow rate 2 L / min in a vertical position with an oil amountof 54 ml. The Result show that number of heat transfer increase along with increasing flow rate of condensercoolant. Its due baecause cooling water flow rate more absorp of heat. The greater the angle of the slope at thecondenser the heat transfer rate is greater. Increasing angle of slope causes the fluid flow rate to be slower dueto head loss.
PENGARUH DEBIT AIR PENDINGIN DAN POSISI KONDENSOR TERHADAP HASIL KONDENSASI PIROLISIS GETAH PINUS Syah, Fahma Ilmian
Sainteknol : Jurnal Sains dan Teknologi Vol 18, No 2 (2020): December 2020
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v18i2.15120

Abstract

The experiment aim to know the effect of cooling water flow rate and condenser position to the pyrolysis product and the heat transfer rate occurring on the condenser. Flow rate of water as condenser coolantabout 2 L / min, 3 L / min 4 L / min, and 5 L / min. Position of condenser used is horizontal, vertical and slopeabout 45 degree. These variables are used to evaluate the performance of the condenser through the acquisitionof condensed oil and heat transfer rate. The result of the research shows that flow rate of condenser coolantgreatly influences the amount of pine sap oil produced. Increase of condenser coolant water flow the volumeof pine sap oil produced is increasing. The condenser position also affects the amount of volume of pine sapoil produced. The larger the angle of the condenser slope the volume of pine sap oil produced decreases. Thehighest amount of oil is produced at flow rate 5 L / min at a horizontal condenser position with an oil amountof 71 ml, and the least amount of oil produced at a flow rate 2 L / min in a vertical position with an oil amountof 54 ml. The Result show that number of heat transfer increase along with increasing flow rate of condensercoolant. Its due baecause cooling water flow rate more absorp of heat. The greater the angle of the slope at thecondenser the heat transfer rate is greater. Increasing angle of slope causes the fluid flow rate to be slower dueto head loss.
PERANCANGAN DAN PEMBUATAN DINAMOMETER EDDY CURRENT UNTUK PENGUJIAN MOTOR BAKAR 0,81 KW Syah, Fahma Ilmian; Karnowo, Karnowo; R., Senthot Dhimas W
Sainteknol : Jurnal Sains dan Teknologi Vol 16, No 1 (2018): June 2018
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/sainteknol.v16i1.14383

Abstract

Intisari. Semakin berkembangnya kehidupan manusia menyebabkan konsumsi energi yang terus meningkat terutama minyak bumi. Motor bakar banyak digunakan sebagai mesin penggerak. Daya dan torsi yang dimiliki mempengaruhi kinerja dari motor bakar. Oleh karena itu dibutuhkan alat dinamometer agar dapat mengukur kemampuan motor bakar sehingga energi yang digunakan tidak mubazir. Dinamometer menggunakan prinsip eddy current sebagai pengereman. Medan magnet tibul dari 3 solenoid yang dialiri arus 8, 12 dan 16 A. Variasi putaran mesin saat pengujian yaitu 1000, 1500, 2000, 2500, 3000 dan 3500 rpm. Hasil pengujian dengan kuat arus 12 A mendapat torsi paling tinggi yaitu 1,08 Nm dengan daya 0,28 kW. Medan magnet yang timbul sebesar 27,7 T pada permukaan solenoid kemudian berkurang dengan jarak 3mm menjadi 6,03T. 
Co-Authors Karnowo - R., Senthot Dhimas W