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All Journal JOURNAL OF SCIENCE AND APPLIED ENGINEERING Pilar Teknologi : Jurnal Penelitian Ilmu-ilmu Teknik
Sutrisno Sutrisno
Universitas Merdeka Madiun
Aerospace Engineering Computer Science & IT Electrical & Electronics Engineering Engineering Social Sciences Other

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Pengaruh Perendaman Serat Sabut Kelapa Pada Air Batu Kapur Terhadap Wettability Sutrisno Sutrisno; Rudy Soenoko; Yudy Surya Irawan; Teguh Dwi Widodo
JURNAL PILAR TEKNOLOGI Jurnal Ilmiah Ilmu Ilmu Teknik Vol. 5 No. 1 (2020): JURNAL PILAR TEKNOLOGI
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v5i1.47

Abstract

Abstract— Processing of natural fibers as a support material for composite materials has been widely carried out. Some studies use chemicals as a medium for processing fiber while the treatment with natural ingredients has not been done much. This study discusses the ability of the matrix to penetrate the coconut fiber. Coconut fiber that has been cleaned soaked in a solution of limestone water. Immersion is done with a variation of the lime mass percentage of 0; 2.5; 5; 7.5; 10% with 8 hours soaking time. The matrix used is unsaturated polyester yucalac 157 BQTN-EX. Wettability testing by dripping a matrix on coconut fiber. Coconut coir fibers that have been dripped with a matrix in the photo to determine the contact angle. The results of measurements and observations that with variations in mass percentage of 5% limestone with an immersion time of 8 hours have a contact angle of 11O˂Φ˂31O. Immersion with a percentage of 2.5% shows the surface of the fiber has not changed. Immersion of 7.5% and 10% of the surface of the fiber has been damaged, so the matrix can not absorb the coconut fiber to the maximum. Keywords—: coconut fiber; limestone water; contact angle; wettability; SEM.
Pengaruh Variasi Tekanan Terhadap Kerapatan, Kadar Air Dan Laju Pembakaran Pada Biobriket Limbah Kayu Mahoni Aditiya Darma Rinanda; Wahidin Nuriana; Sutrisno Sutrisno
JURNAL PILAR TEKNOLOGI Jurnal Ilmiah Ilmu Ilmu Teknik Vol. 6 No. 1 (2021): JURNAL PILAR TEKNOLOGI
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v6i1.67

Abstract

Abstract— The use of biomass from mahogany wood waste briquettes as a substitute fuel for oil and gas requires briquette technology. Mahogany wood briquette is able to convert into fuel with a fairly good conversion efficiency, high density and ease of storage and distribution. The purpose of this study was to determine the effect of pressure variations on the density, moisture content and rate of burning of mahogany wood waste briquettes. The process of making charcoal biobriquettes begins with the carbonization process with a temperature of 400 ̊C, then smoothed and sieved with a size of 80 mesh - 100 to get the same size, and using tapioca adhesive 30% of the weight of the mixture. The mixture is put into a molding machine and then printed with a pressure of 80 kg/cm2, 115 kg/cm2, 150 kg/cm2, and 185 kg/cm2. Charcoal biobriquettes are dried in an oven at 105 ̊C for 1 hour. In this research, the mass density and moisture content of the mahogany wood waste met the Indonesian biobriquette standards, the results of this study obtained the higher density of 0,55 g/cm3at a pressure of 150 kg/cm2. The results lowest water content of 47,2% at a pressure of 185 kg/cm2. The lowest combustion rate is 0,257 g/min at a pressure of 185 kg/cm2. Keywords—: mahoni wood waste; pressure; moisture content; combustion rate.
Pengaruh Komposisi Serat Wlingi (Mansaiang) Terhadap Sifat Kekuatan Tarik Sutrisno Sutrisno
JURNAL PILAR TEKNOLOGI Jurnal Ilmiah Ilmu Ilmu Teknik Vol. 6 No. 1 (2021): JURNAL PILAR TEKNOLOGI
Publisher : LPPM Universitas Merdeka Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33319/piltek.v6i1.71

Abstract

Abstract— The purpose of this study was to determine the effect of the composition of the material using the wlingi fiber fraction with polyester resin on tensile strength. The materials used in this study were Wlingi fiber and BQTN polyester resin. Making was done by hand lay up process. After reaching the desired holding time, the mold is put into the oven and processed and the specimen is removed from the mold. After obtaining four specimens of wlingi fiber variations, the tensile strength testing process was carried out according to ASTM 638. The results of this test indicate that the composition of the material with a wlingi fiber weight fraction of 40% Tensile strength of 118.76 MPa, a strain of 1.32 mm / mm, and a modulus of elasticity of 12355 MPa. Keywords—: tensile strength; wlingi fiber; BQTN resin.
Electrolysis Process of Acid Acetic and Sugar Water Solution as an Alternative Fuel Gatot Soebiyakto; Sutrisno Sutrisno; Dadang Hermawan; Muhammad Ghazali Arrahim
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 6, No 2 (2023): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v6i2.5000

Abstract

One alternative energy that can be developed is hydrogen. To obtain hydrogen gas by decomposing water compounds (H2O) into hydrogen hydrogen oxygen gas (HHO) through electrolysis. The solution used in this electrolysis process uses sodium chloride (NaCl) with electric current energy. In this research, a dry cell type HHO generator was used, the electrode used was a type 304 stainless steel plate with a catalyst percentage (NaCl) of 8%, 10%, 12%, 14% and 16%. The aim of this research is to determine the hydrogen content in a solution of vinegar and sugar water which can be used as an alternative fuel. This research produced the highest hydrogen volume at a percentage of 16% of 367 mL at the highest temperature of 547 C, the lowest 317 C and the lowest hydrogen volume of 198 mL. The highest flame height is 5.72 cm and flame width is 2.98 cm and the highest flame brightness level (Red Green Blue) is 16 RGB and the lowest brightness level is 2 RGB.
Co-Authors Aditiya Darma Rinanda Dadang Hermawan Gatot Soebiyakto Muhammad Ghazali Arrahim Rudy Soenoko Teguh Dwi Widodo Wahidin Nuriana Yudy Surya Irawan