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All Journal Jurnal Ilmu Pertanian Indonesia Transmisi Rekayasa Mesin Journal of Mechanical Engineering Science and Technology JPSE (Journal of Physical Science and Engineering) Buletin Ilmiah Sarjana Teknik Elektro Jurnal Karinov Jurnal Abdi Insani Jurnal Pengabdian, Pendidikan dan Teknologi Jurnal Graha Pengabdian Teknomekanik Mechanical Engineering for Society and Industry Automotive Experiences International Journal of Education, Vocational and Social Science
Heru Suryanto
Universitas Negeri Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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The Effect of Chlorophyll Concentration from Papaya Leaves on the Performance of Dye Sensitized Solar Cell Rizali, Dede; Suryanto, Heru; Sukarni, Sukarni
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 3, No 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (934.282 KB) | DOI: 10.17977/um016v3i22019p059

Abstract

Dye-Sensitized Solar Cell (DSSC) is the third generation solar cell that has sandwich structure consisted of organic dye material and other components such as titanium dioxide (TiO2) semiconductor, electrolyte, and substrates (counter electrode and working electrode). The dye in the device was made from green plant chlorophyll such as papaya. This research aimed to find the influence of dye concentration from papaya leaves chlorophyll on the performance of DSCC. The discussion covered the output power (Pout), Fill Factor (FF), and efficiency (ɳ). The method in this research was explorative experimental with independent variables such as direct and indirect sunlight. The dependent variables were output power (Pout), Fill Factor (FF), and efficiency (ɳ) from the DSSC. The procedures in this research consisted of substrates preparation, TiO2 paste production, dye solution preparation, electrolyte preparation, counter electrode preparation, and DSSC assembly. The tests on chlorophyll concentration were conducted using spectrophotometry method while the DSSC performance test used 1,000 W/cm2 halogen lamp. The results showed that 100% chlorophyll concentration resulted in 3.1295 mg/m3 chlorophyll content type a. The best DSSC performance was obtained by the DSSC sample that had 100% chlorophyll concentration and 1.1294 mg/m3 chlorophyll content. The direct light of DSSC achieved Pout of 0.9557 mW, FF of 0.07282, and efficiency of 1.499137%. The DSSC with indirect light obtained Pout of 0.00455 mW, FF of 0.01535, and efficiency of 0.049863%.
Characterization of Bacterial Nanocellulose - Graphite Nanoplatelets Composite Films Susilo, Bili Darnanto; Suryanto, Heru; Aminnudin, Aminnudin
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 5, No 2 (2021)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v5i22021p145

Abstract

Bacterial cellulose  (BC) was synthesized from pineapple peel extract media with addition of fermentation agent bacteria Acetobacter xylinum. BC was disintegrated from the pellicle into bacterial nanocellulose (BNC) by using a high-pressure homogenizer (hph) machine, which has a three-dimensional woven nanofibrous network. The synthesis of composite films started when BNC, graphite nanoplatelets, and cetyltrimethylammonium bromide (CTAB) were homogenized using an ultrasonic homogenizer then baked on a glass mold at a temperature of 80 degrees Celcius for 14h. A scanning electron microscope (SEM) was used to analyze its morphology. X-Ray diffraction spectra were used to analyze the composite films structure. The functional groups of the composite films were analyzed using the FTIR spectrum. SEM micrograph shows that GNP was evenly distributed into BNC matrix after CTAB addition. GNPs are shown as flat and smooth flakes with sharp corners. Some peak corresponds O-H, C-H, C≡C, and CH3 stretching was identified by using FTIR spectroscopy at wavenumber 3379, 2893, 2135, and 1340 cm-1, respectively. XRD analysis shows that Crystalline Index (C.I) of BNC increases after 2.5 wt% addition of GNP. The presence of CTAB decreases C.I value of composite films. BNC/GNP composite films have the best mechanical properties with Young’s modulus about 77.01 ± 8.564.
Effect of Graphene Addition on Bacterial Cellulose-Based Nanocomposite Maulana, Jibril; Suryanto, Heru; Aminnudin, Aminnudin
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 6, No 2 (2022)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v6i22022p107

Abstract

Bacterial cellulose (BC) is a widespread, low-cost biopolymer that has generally been produced from plants and biomass waste. A method for improving the range of applications for bacterial cellulose is adding graphene material. It has an outstanding feature that can increase the performance of nanocomposite materials. The research aims to observe the effect of graphene on the surface morphology, crystallinity, chemical bonding, and tensile strength of BC/CuO nanocomposite. For this study's synthesis, BC was synthesized by fermenting pineapple peel extract for 10 to 14 days. The produced BC was crushed, homogenized with a nano homogenizer machine, and filtered. Filtered BC, CuO, and graphene were added to obtain a solution, and the mixture was first stirred magnetically, followed by an ultrasonic homogenizer, and finally dried using a freeze-dry method to make a porous nanocomposite. According to SEM analysis, the addition of CuO and graphene can fill porosity nanocomposite. By XRD analysis, the addition of graphene reduces the crystallinity of BC/CuO. The FTIR data showed that adding graphene reduces hydrogen bonding and makes some Cu-O-C bonding. The tensile test has demonstrated that the tensile strength of BC-based nanocomposite with graphene reinforcement tends to decrease.
Analysis of Structure and Functional Group of Filament Product-Based PLA/Nanographite Nanocomposite Suryanto, Heru; Aminnudin, Aminnudin; Bintara, Redyarsa Dharma; Putra, Abyan Farras; Nashrullah, Fikri Munif; Binoj, Joseph Selvi; Panicker, Nithin
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i22023p129

Abstract

In many polymer compounds, Polylactic Acid (PLA) is a polyalcohol material that has the most potential material which is potent for biological degradation. They have been applied as filaments in additive manufacturing. The PLA properties can be modified by adding nanomaterials such as graphite nanoplatelets. This study aims to obtain the characteristics of PLA-based filament nanocomposite with nanographite reinforcement. Methods include exploration research to obtain nanocomposite filament with PLA and 1% of nanographite. The mixing process of nanographite in PLA solution with chloroform solvent and then the extrusion process of nanocomposite using a single extruder. The product comparison before and after the extrusion process was analyzed using X-ray diffraction and Fourier Transform infrared. Diffractogram results indicate that the original PLA structure is amorphous, and after mixing using nanographite, peaks of nanographite appeared clearly. After the extrusion process, some peaks at 16.7° and 19.1° disappeared, but only a peak 26.6° appeared in the diffractogram. Extrusion makes the structure change. Functional group analysis confirms that some reactions occurred so that many peaks were removed, and several new peaks were observed. It indicates that the extrusion process of PLA/nanographite results in different structures and functional groups that indicate a change in its properties.
Effect of Current and Pulse-on Time on Material Removal Rate and Surface Roughness of Tungsten Carbide in Electric Discharge Machine Die-sinking Riyanto, Mochammad Deny; Andoko, Andoko; Suryanto, Heru
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 7, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v7i12023p039

Abstract

The focus of manufacturing for tungsten carbide applications often demands a smooth surface quality as the result of the Electric Discharge Machine (EDM) die-sinking process, especially in the manufacture of die and mold with tungsten carbide material processed using a die-sinking EDM machine. The purpose of this study is to analyze the effect of electric current and pulse-on time on the Material Removal Rate (MRR) and surface roughness of tungsten carbide. Through the experimental method, the parameters varied, namely electric current 17 A, 20 A, 23 A, and pulse-on time 30 µs, 55 µs, and 80 µs. MRR was calculated through weight loss. Surface roughness was obtained from a surface roughness tester and a Scanning Electron Microscope for surface morphology. The results showed that the highest material removal rate was 1.509 mm3/min at 23 A and 30 µs, and the lowest material removal rate was 0.262 mm3/min at 17 A and 80 µs. The highest surface roughness value was 4.278 µm at 23 A and 80 µs. The lowest surface roughness value was 2.166 µm at 17 A and 30 µs. The tungsten carbide surface topography results are crater, globule, crack, and porous. The greater the current used, the higher the MRR value and surface roughness. Meanwhile, the greater the pulse-on time used, the MRR value decreases, and the surface roughness increases.
Analysis of the Effect of Guide Vane Opening Variations and Total Blades on Cross Flow Turbine Performance Using Computational Fluid Dynamic Navis, Akbar; Suryanto, Heru; Murdanto, Putut
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 4, No 2 (2020)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v4i22020p072

Abstract

Indonesia is an agrarian country that continuously produces water, so it has the potential to develop a hydroelectric power plant. Computational Fluid Dynamic (CFD) application could be used to be an economical, quick, and efficient approach to improve the engineering design and turbine performance. This research aimed to find the effect of guide vane opening variations and total blades on cross-flow turbine performance using CFD simulation. This research used experimental modelling method with ANSYS program for turbine design with 22, 24, and 26 turbine blades and guide vane opening variations of 12°, 16°, 20°, 24°, and 36°. The data were collected by reviewing the simulation results after the numerical calculation process. The results showed that the cross-flow turbine performance was improving along with the increasing guide vane opening. The optimum turbine performance (power and efficiency) was obtained at 24° opening of guide vane and 26 total blades, producing 868.53 W power with 75.16% efficiency.
PKM PENERAPAN RECIRCULATING AQUACULTURE SYSTEM UNTUK PENGELOLAAN AIR DAN KESEHATAN IKAN BERKELANJUTAN DI POKDAKAN ROI LELE KABUPATEN MALANG Yanuhar, Uun; Wuragil, Dyah Kinasih; Suryanto, Heru; Mufidah, Rhobithotus; Fauliza, Tifa; Wardani, Nezya Pramudya; Pahlefi, Reval; Adhitya, Dewa Sukma Trinanda; Caesar, Nico Rahman
Jurnal Pengabdian Pendidikan dan Teknologi (JP2T) Vol 3, No 2 (2022)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um080v3i22022p159-165

Abstract

Pemeliharaan ikan lele yang dilakukan pembudidaya di Pokdakan ROI Lele sebagian besar tidak melakukan upaya pengelolaan kualitas air seperti, filtrasi, sirkulasi maupun penggantian air (water exchange). Hal ini menyebabkan penurunan mutu air sebagai akibat dari penumpukan sisa pakan maupun feses ikan serta sisa hasil metabolisme lainnya. Lingkungan perairan merupakan suatu hal yang sangat berperan penting dalam pertumbuhan ikan lele (Clarias sp.). Oleh karena itu, perlu adanya manajemen lingkungan dan kesehatan pada pemeliharaan ikan lele (Clarias sp.). Keberhasilan suatu usaha budidaya sangat erat kaitannya dengan kondisi lingkungan yang optimum untuk kelangsungan hidup dan pertumbuhan ikan yang dipelihara. Setelah Tim PKM Mengidentifikasi pemecahan masalah yang ada, maka kegiatan pemecahan atau pengembangan yang dilakukan harus sesuai dengan kebutuhan yakni dengan menerapkan teknologi Recirculating Aquaculture System (RAS) pada kolam budidaya ikan di Pokdakan ROI Lele.  Dalam penerapan sistem RAS, penggunaan filtrasi air sangat menentukan keberhasilan sirkulasi air. Pada progam PKM ini akan menggunakan Filtrasi air terdiri dari filter mekanis, filter biologi dan filter kimia. Hasil dari kegiatan pengabdian masyarakat PKM terhadap mitra adalah Pengetahuannya meningkat, keterampilannya meningkat, kapasitas produksi meningkat dan keuntungannya meningkat.
Effect of Electrodeposition Time on the Growth Rate of Carbon Nanotubes (CNTs) Faishol, Faishol; Andoko, Andoko; Suryanto, Heru; Prasetya, Riduwan
TRANSMISI Vol. 20 No. 2 (2024): September (2024)
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v20i2.13672

Abstract

Carbon Nanotubes (CNTs) are nano-sized carbon that resembles tubes and has the potential to be used in various aspects of applications. Some of  the CNT carbon capture  methods include arc discharge, lasser ablation, CVD and electrodeposition. The advantage of the electrodeposition method is that the production cost is cheap and the preparation is easy. Electrodeposition is the precipitation of substances by using a direct electric current, with CO2 as the reactant. Factors that affect the growth rate of CNT are voltage, temperature, carbon source, electrode and time. The variation of the electorative time used was 60 minutes, 90 minutes, 120 minutes, 150 minutes, 180 minutes. The data collection process begins by shaping and measuring the weight of the electrode (Ni) with a diameter of 2 cm CNT deposition area. measuring the weight and melting Li2CO3 at a temperature of 750. then the CO2 flow rate setting, voltage setting  5V and time setting were then characterized by SEM-EDX and XRD. The results of the study showed that the optimal time obtained with a time of 120 minutes, the resulting CNT deposition rate was 1,618 g cm-2 h-1. Then based on the characterization of XRD and SEM, it shows that the longer the electrodeposition time, the less impurities are contained in the results obtained.
The Influence of Sodium Chloride Treatment on the Sisal Fiber Bundle’s Properties Setyayunita, Tamaryska; Suryanto, Heru; Aminnudin, Aminnudin
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 2 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i22024p532

Abstract

Currently, composite board manufacturing using natural fiber has the potential to be expanded due to environmental awareness. To produce high-performance natural fiber, treatment is needed to improve natural fiber’s mechanical and physical properties. One of chemical treatments is by using sodium chloride (NaCl). This study aimed to investigate the characteristics of sisal fiber after NaCl treatment. The concentrations of NaCl treatment were 1, 3, and 5 (wt.%) at room and boiling temperature and the soaking duration was 1 hour. Meanwhile, tensile strength, strain, and Young’s modulus were tested to evaluate the mechanical properties. Fiber bundle diameter, weight change due to treatment, and contact angle were tested to assess the effect of NaCl treatment. Sisal fiber bundle was treated with 5 wt.% NaCl for 1 h exhibited the highest value of tensile strength, Young’s modulus, reduction of fiber bundle diameter, percentage of weight change, and decrement of contact angle in comparison with untreated fiber bundle. Treatment with 5 wt.% NaCl at boiling temperature successfully increased the tensile strength and Young's modulus by 48.39% and 76.8%, respectively, compared to untreated fibers. NaCl treatment was shown to be an effective method to improve the mechanical properties and wettability of fibers, which has potential for application in high-performance plant fiber composites. The surface of sisal fiber treated with 5 wt.% NaCl at boiling temperature appeared rougher than that of the untreated one. In addition, this treatment also reduced the contact angle between the fiber and the adhesive by 38.71% compared to the untreated.
Characterization and Performance Nanofiltration Membranes in Water Quality for Goldfish (Carassius auratus) Aquaculture Utari, Inpita Casuarina Eqisetia; Yanuhar, Uun; Hertika, Asus Maizar Suryanto; Suryanto, Heru; Maulana, Jibril; Caesar, Nico Rahman; Ismail, Mahrus
Journal of Mechanical Engineering Science and Technology (JMEST) Vol 8, No 2 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um016v8i22024p332

Abstract

Water quality is an important factor in aquaculture activities, including goldfish (Carassius auratus) farming. One approach to improving water quality is the use of nanofilters. This study aims to evaluate the performance of nanofilters made from Sargassum sp. with the addition of copper oxide nanoparticles. The method used involves the fermentation of bacterial cellulose from Acetobacter xylinum using Sargassum sp. extract as a medium, followed by homogenization and the addition of CuO-NPs at concentrations of 0.5%, 1%, and 1.5%, and subsequent oven drying. The nanofilter membrane will then be analyzed using SEM, XRD, and FTIR to characterize its properties. Performance tests will assess the quality of water used in goldfish farming, including pH, TOM, TDS, and TSS after treatment with the nanofilter. Morphological results show a rougher and denser surface with dispersed CuO-NPs. Characterization reveals cellulose I with crystallinity values ranging from 86.80% to 90.20%, with functional group peaks at 3145, 2927, and 1735 cm⁻¹ indicating cellulose characteristics, and a peak at 424 cm⁻¹ indicating Cu-O bonds. Statistical analysis of performance tests on the water quality of goldfish farming in the F-test shows significant differences (p
Co-Authors Adhitya, Dewa Sukma Trinanda Agung Prabowo Ahmad Atif Fikri Aisyah Larasati Ali, Alamry Amasda, Naufal Rizky Aminnudin, Aminnudin Ananto, Rifqi Ryandi Dwi Andoko Andoko, Andoko Anni Faridah Apri Supii Arbianto, Ferian Rizki Ardianto Prasetiyo Asus Maizar Suryanto H Avita Ayu Permanasari Bili Darnanto Susilo Binoj, Joseph Selvi Daimon Syukri Dyah Kinasih Wuragil Eddy Rudianto Faishol, Faishol Fakris Muslim Faqih Fadillah Fauliza, Tifa Femiana Gapsari MF Gian Suryanatha Hartawan Gunanti Mahasri Herly Evanuarini Iqbal, Ahmad Ismail, Mahrus Jibril Maulana Komarudin Komarudin Kris Witono M. Muhajir Malik Abdurrachman Manawan, Maykel Marsono Marsono Masera, Kemal Mito, Mohamed T Mufidah, Rhobithotus Muhamad Muhajir Muhamad Muhajir Muhamad Syaifuddin Muhammad Musa Muhammad Musa Muhammad Sumsanto Muhdi, Krisna Dwipa Murdanto, Putut Nanang Eko Wahyuningtiyas Nanang Eko Wahyuningtyas Nashrullah, Fikri Munif Navis, Akbar Nico Rahman Caesar Nusantara, Fajar Osman, Azlin Fazlina Pahlefi, Reval Panicker, Nithin Pradana, Yanuar Rohmat Aji Prasetya, Riduwan Pratama, Daniel Febrian Putra, Abyan Farras Rachmat Setiawibawa Ramadhan, Rahmad Ikrom Reddy .A. Dharmabintara Redyarsa Dharma Bintara Retno Wulandari Riyanto, Mochammad Deny Rizali, Dede Rr. Poppy Puspitasari Rudy Soenoko S.M.Shahrul N.S. Zahari Setyayunita, Tamaryska Sias, Quota Alief Subhan, Muhammad Ferindin Nuha Sudarno, Kurnia Agung Sukarni Sukarni Sukarni Sukarni Suprayitno Suprayitno Suprayitno Suprayitno Susilo, Bili Darnanto Syahtaria, Moh Ikhwan Tito Arif Sutrisno Uksan, Arifuddin Ulhaq, Ulfieda Anwar Utari, Inpita Casuarina Eqisetia Wardani, Nezya Pramudya Wiguna, Chrisrulita Sekaradi Wuragil, Dyah Kinasih Yanuar. R. A. Pradana Yanuhar, Uun Yudy Surya Irawan