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Risse Entikaria Rachmanita
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Perumahan Sidorejo, Jl. Sidorejo Gg. Sadewa No.D3, RT. 02, Kelurahan Ngestiharjo, Kapanewon. Kasihan, Kabupaten Bantul, Daerah Istimewa Yogyakarta 55184
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INDONESIA
Journal of Engineering Science and Technology
Published by Indonesian Journal Publisher
ISSN : -     EISSN : 29856132     DOI : 10.47134/jesty
Core Subject : Science, Engineering,
Engineering Materials Science & Nanotechnology
Journal of Engineering Science and Technology (JESTY) is a peer-reviewed journal that aims to publish and disseminate original research articles on the latest developments in all fields of engineering science and technology. The journal publishes original papers in Indonesian, which contribute to understanding engineering science and improving engineering technology and education. The articles may be theoretical (including computational), experimental or both. The contribution should be unpublished before and not under consideration for publication elsewhere.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 19 Documents
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Penurunan Kadar FFA (Free Fatty Acid) Minyak Jelantah Menggunakan Adsorben Arang Aktif Ampas Tebu Pada Proses Pembuatan Biodiesel Yuli Hananto; Juwita Rosdiana
Journal of Engineering Science and Technology Vol. 1 No. 1 (2023): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i1.1

Abstract

One of the obstacles in utilizing used cooking oil as a raw material for making biodiesel is the high FFA (Free Fatty Acid) content. An alternative way that can be used to reduce FFA levels is to use adsorbents to adsorb free fatty acids. This study aims to use bagasse as an adsorbent for activated charcoal to reduce the FFA content of used cooking oil in the process of making biodiesel. The process of reducing the FFA of used cooking oil was carried out by an adsorption process using activated bagasse charcoal with an increased temperature of 100 oC to accelerate the rate of adsorption and evaporation of water trapped in the used cooking oil while stirring at 500 rpm with a magnetic stirrer. The most optimal adsorbent mass for bagasse activated charcoal is to use a mass of 15% w/v used cooking oil, because it has the lowest average FFA value compared to other masses. The most optimal adsorption time for used cooking oil is at 60 minutes of adsorption because it has the lowest average FFA value compared to other adsorption times. FAME.
Perhitungan Neraca Massa Pada Reception Oil Tank di Stasiun Klarifikasi PKS XYZ Sumatera Utara Dimas Frananta Simatupang; Darni Paranita; Nuranika Nuranika; Hendra Saputra; Merta Simbolon
Journal of Engineering Science and Technology Vol. 1 No. 1 (2023): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i1.2

Abstract

Reception Oil Tank (ROT) is a unit at a clarification station that has a function as a temporary storage tank for filtered crude oil from the vibro-separator unit and also to retain heat. In this ROT, the heat provided comes from direct injection of hot steam and steam coils with temperatures ranging from 90-95 0C. This research was conducted with the aim of determining the flow rate of materials into and out of ROT using the principle of mass balance and determining the levels of each component in the oil in ROT before further processing. Based on the results of the mass balance calculation, it was obtained that the flow rate of crude oil entering ROT was 10794.2 kg/hour. The composition content of the materials entering ROT in 10 mL includes 37.6% oil, 26.6% water and 35.8% non-oil solid while the composition levels of materials leaving ROT to CST include 41.6% oil, 27% water, and non-oil solids 31.4%. The oil content has increased during the process that occurs in the ROT at the clarification station.
Peningkatan Kualitas Briket Ampas Kopi Menggunakan Perekat Kulit Jeruk Melalui Metode Torefaksi Terbaik Qanitah Qanitah; Yurdika Dwi Fatholah Akbar; Zeni Ulma; Yuli Hananto
Journal of Engineering Science and Technology Vol. 1 No. 1 (2023): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i1.3

Abstract

Energy is generally divided into two, the first is non-renewable energy for example oil, coal, and natural gas while the second is renewable energy such as water power, solar power, wind power, and biomass. Briquettes is one of the developments of biomass as an alternative fuel. The purpose of this study was to make and analyze the characteristics of coffee grounds briquettes using an adhesive from orange peel with torrefaction method. Torrefaction is a low temperature (200-300 oC) carbonization process without oxygen. Briquettes are made by percentage of coffee grounds and orange peel adhesive 70% : 30%, 60% : 40%, and 50% : 50%. Torrefaction process with a temperature of 200 oC within 60 minutes without any air or little air in the furnace with the addition of modified elbows. The results showed that the best composition was found in DK1 with a ratio of 70% coffee grounds with 30% orange peel adhesive, which has density 0.49 gr/cm3, water content 5.11%, volatile matter content 78.33%, bound carbon content 17.31%, 0.62% ash content, and 4656 cal/gr calorific value
Studi Simulasi Optimasi Parameter Proses Implantasi ION Nitrogen Multi Energi ke Dalam Permukaan SS 316L Menggunakan Program SRIM Haerul Ahmadi; B. A. Tjipto Sujitno; Yudithia Balo Tarigas; Andi Rosman N.
Journal of Engineering Science and Technology Vol. 1 No. 1 (2023): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i1.4

Abstract

Nitrogen ion implantation at 50 keV of energy on the surface of SS 316 stainless steel, by calculation will only be able to reach a depth of 561 Å and the ions will be distributed Gaussian effectively at a depth of 561 Å ± 339 Å, so that from the surface to a depth of 222 Å is not filled by ions (empty) which of course will affect the properties of the implanted surface. The solution to the problem is to implant the target several times at <50 keV of energy. To minimize the un-filled volume, the study of simulation and calculation has been conducted. In this study a simulation using TRIM program to know how many times the target should be implanted at different energies and also the calculation of the amount of nitrogen ions that should be implanted, so that the distribution of nitrogen ions can be evenly distributed from the surface to 561 Å. From the results of simulations and calculations the results show that the target must be implanted at least 6 times implantation at energy 50 keV,40 keV, 30 keV, 20 keV and 10 keV. Under these conditions the dose that must be implanted are 7,4×1017ion/cm2, 6,44×1017ion/cm2, 4,6×1017 ion/cm2, 3×1017 ion/cm2 and 1,6×1017 ion/cm2. The total doses and amount of nitrogen filling the implanted volume are 7,32%..
Karakterisasi Metil Ester Dari Minyak Biji Bunga Matahari dan Minyak Zaitun di Bawah Katalis KOH Aman Santoso; Muhammad Roy Asrori; Sumari Sumari; Andyka Medarda Pradana
Journal of Engineering Science and Technology Vol. 1 No. 1 (2023): January
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i1.5

Abstract

Fatty acid methyl esters can be obtained from the synthesis of vegetable oil with methanol using a base catalyst. Vegetable oil has potential as biodiesel feedstock, the methyl ester character of various vegetable oils is different, for example from sunflower seed oil and olive oil. The synthesis of methyl esters by conventional transesterification reactions generally takes 1-2 hours. The purpose of this study was to synthesize methyl esters from sunflower seed oil and olive oil with a KOH catalyst and to determine the yield and its characteristics. This research is a type of laboratory experimental research. The research was carried out in 3 stages which included (1) determination of the free fatty acid content (ALB) of the oil, (2) transesterification of the oil with methanol and potassium hydroxide as a catalyst, and (3) characterization of the synthesized methyl ester which included density, viscosity, and number. acid. The results showed that the yield of methyl esters synthesized by transesterification reaction of sunflower seed oil was 95.61% and the yield of methyl esters synthesized by transesterification reaction of olive oil was 95.09.%. The methyl ester characters synthesized from sunflower seed oil are, density of 0.906 g/mL, viscosity of 5.035 cSt, acid number of 1.21 g KOH/g. The methyl ester characters synthesized from olive oil by transesterification reaction are density of 0.909 g/mL, viscosity of 12.203 cSt, acid number of 0.629 g KOH/g.
Rancang Alat Pencacah Rumput Pakan Ternak Tenaga Surya Berbasis Mikrokontroller Dengan Sinar UV Sebagai Penghigienis Rumput Euaggelion Eko Firman Setiawan Yohanes; Enno Agdelliano Diniardi; Muhammad Syah Radian; Agung Budi Prasetyo; Dinda Azzahra Permata Hati; Risse Entikaria Rachmanita
Journal of Engineering Science and Technology Vol. 1 No. 2 (2023): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i2.6

Abstract

The innovation of a lawn mower using a microcontroller based solar energy system combined with UV LED light as a microbe minimizer aims to increase the innovation of the lawn mower by using the PLTS system from the use of sunlight that is cleaner and more efficient which replaces fossil fuels from diesel and turns grass into grass. The chopper results are more hygienic for ruminant livestock. The innovation of the lawn mower in this activity is presented in the form of a ready to use machine. The method used in the realization of the concept and design as well as the design of the tool is carried out by going through the literature study stages, designing tool design concepts, designing tool making, and testing tool performance. main frame: height 200cm, width 50cm, length 60cm with a thickness of 4 mm angled iron frame, chopper cover componen 50 cm long and 15cm wide, axle iron components 1,5 inch, the diameter of the chopping knife blade is a 30cm using an AC motor drive. Total electrical energy and tool performance generated by the solar power system on the Smart Machine Grass chopper for 2 hours when the engine is running without charging, the average voltages is 14,62 Volts, current is 2,08 Ampere, and produces an average energy of 6,18 watts and obtained the performance of the tool in chopping grass of 63,4 kg for 2 hours with an average of 2,64 kg every 5 minutes.
IMPLEMENTASI SENSOR ULTASONIK JSN-SR04T SEBAGAI ALAT BANTU PARKIR MOBIL MPV BERBASIS ARDUINO UNO Mochamad Irwan Nari; Ach Mufid; Dicky Adi Tyagita; Erlanda Miko Prasetya
Journal of Engineering Science and Technology Vol. 1 No. 2 (2023): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i2.13

Abstract

Perkembangan teknologi berkembang cukup pesat, tidak terkecuali di dunia otomotif. Hampir semua kendaraan terbaru dilengkapi dengan teknologi keselamatan yang membantu pengemudi saat parkir untuk menghindari benturan dengan rintangan di sekitar mobil terutama pada malam hari. Namun secara umum, mobil keluaran di bawah tahun 2000 belum memiliki teknologi keselamatan seperti sensor parkir. Teknologi tersebut membutuhkan sensor parkir yang harus dipasang secara manual di dalam mobil. Berdasarkan permasalahan tersebut diperlukan sistem keamanan yang dapat digunakan dengan baik. Untuk itu pada makalah ini dibuat sebuah sistem parkir berbasis mikrokontroller dengan komponen elektronik komersial dan lebih andal mencakup sensor jarak JSN-SR04T, DF-Player, Arduino Uno, LCD 16x2, Speaker. Hasil evaluasi menunjukkan bahwa alat bantu parkir dapat bekerja dengan baik dan sesuai dengan kebutuhan. Penggunaan sensor ultrasonik JSN-SR04T dan Arduino Uno mampu menghasilkan akurasi pengukuran jarak hingga mencapai 99%. Selain itu, nilai presisi pada bidang datar untuk sensor kanan dan kiri mencapai 98%, sedangkan nilai presisi pada bidang gelombang untuk sensor kanan dan kiri mencapai 98%.
INSECT TRAP LIGHT BERBASIS ANDROID DENGAN TEKNOLOGI SOLAR CELL SEBAGAI SOLUSI PENGENDALIAN HAMA SERANGGA PERTANIAN Setio Enwin Putra Ramadhani; Harga Sri Rahayu Ningsih; Risse Entikaria Rachmanita
Journal of Engineering Science and Technology Vol. 1 No. 2 (2023): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i2.8

Abstract

Pada sektor pertanian, ada berbagai tantangan yang hampir tidak lepas dari petani. Salah satunya yaitu tantangan hama tanaman. Hama dapat memberikan pengaruh kurang baik terhadap hasil panen. Pengendalian hama tanaman yang kurang baik dan maksimal akan memberikan dampak yang kurang baik pula terhadap hasil pertanian. Penelitian ini bertujuan untuk membuat dan menerapkan teknologi Insect Trap Light pada pertanian sebagai solusi untuk mengatasi masalah hama tanaman dengan melakukan pengendalian hama guna meningkatkan kualitas dan kuantitas hasil produksi pertanian. Insect Trap Light efektif menurunkan populasi hama serangga yang aktif pada malam hari. Teknologi ini memanfaatkan panel surya untuk mengubah energi matahari menjadi energi listrik sehingga dapat ditempatkan pada lahan yang jauh dari rumah maupun sumber listrik PLN. Dari hasil penelitian yang dilakukan, lampu dapat menyala selama 11 jam dengan menggunakan solar cell 50 Wp dan baterai dengan kapasitas 12 V 35 Ah. Sistem monitoring menggunakan smartphone juga menunjukkan hasil tegangan dan kondisi lampu pada alat perangkap serangga, aplikasi tersebut juga dapat mengontrol lampu dengan baik. Implementasi alat dilakukan pada komoditas terong yang kemudian menghasilkan pengaruh terhadap tanaman dengan tidak adanya penambahan buah yang rusak. Hal tersebut juga menunjukkan bahwa terjadi pengurangan terhadap populasi hama serangga pertanian di lahan tersebut. Kata-kata kunci: Insect Trap Light, Pengendalian Hama, Solar Cell
PERANCANGAN ECO SMART CHARGING AREA DI POLITEKNIK NEGERI JEMBER: DESIGN OF ECO SMART CHARGING AREA AT JEMBER STATE POLYTECHNIC Achmad Daffa Danang Luthfiansyah; Herlina Oktavia; Duta Catur Pamungkas; Muhammad Rofiul Haq; Anfasa Syahrul Habibie; Risse Entikaria Rachmanita
Journal of Engineering Science and Technology Vol. 1 No. 2 (2023): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i2.10

Abstract

Inovasi Stasiun Pengisian Kendaraan Listrik Umum (SPKLU) menggunakan sistem energi tenaga surya bertujuan agar terciptanya penggunaan energi bersih di Indonesia serta mendorong tercapainya bauran energi nasional tahun 2050. Penerapan inovasi Stasiun Pengisian Kendaraan Listrik Umum (SPKLU) diharapkan dapat menggantikan ketergantungan pada bahan bakar fosil dan diharapkan dapat meningkatkan minat masyarakat agar beralih ke kendaraan listrik yang tidak memiliki emisi bahan bakar. Inovasi Stasiun Pengisian Kendaraan Listrik Umum (SPKLU) pada kegiatan ini disajikan dalam bentuk konsep. Metode yang digunakan dalam perwujudan konsep serta desain dilakukan dengan melalui tahap studi literatur dan tahap survey. ECO SMART CHARGING AREA dapat menghasilkan potensi energi surya sebesar 34.650 WP atau 34,65 kWp. Dengan jumlah energi yang dapat dihasilkan mencapai 34,65 kWp maka charging area ini dapat melakukan pengecasan 10 unit mobil listrik merk Wuling Air EV (Standard Range) dan 41 unit motor listrik secara bersamaan. Charging area ini memiliki Panjang 11 m dan lebar 35,49 m serta memiliki luas sebesar 130,13 dibangun di Politeknik Negeri Jember.
Konsep Rancang Bangun Smart Home Base Berbasis IOT untuk Skala Perumahan Duta Catur Pamungkas Putra; Imani Rizkia Dawami; Muhammad Rofiul Haq; Achmad Daffa Danang Luthfiansyah; Alfan Mubarok; Dafit Ari Prasetyo
Journal of Engineering Science and Technology Vol. 1 No. 2 (2023): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i2.11

Abstract

World energy demand continues to increase by 45% until 2030 based on projections of the International Energy Agency (IEA) with an average increase of 1.6% per year. About 80% of these energy needs supplied by fossil fuels. This increase occurred due to population growth, industrialization, lifestyle changes, and the use of increasingly complex technology. The household sector is one of the sectors that require energy to meet daily needs. Researchers conducted a study of research results related to rooftop Solar Power Plants, the use of thermoelectric as a producer of electrical energy, and the use of septic tanks for household gas with digesters that have been published in Indonesian-language journals and proceedings. The concept of a smart home base is implemented assuming a simple housing design, in this design than a technical calculation of the feasibility of a Smart Home Base is carried out which considers efficient methods in the development and provision of energy independently based on renewable energy for cost savings and supports government programs abaout Indonesia Ketahanan Energi 2030. Renewable energy applied to the smart home base concept utilizes Solar Power Plants which are hybrid with Thermoelectric Generators and biogas to replace of the LPG stove. Utilization of IoT-based technology to optimize energy savings at home. The housing concept is assumed with a simple housing design with a daily energy consumption of 5,507 Wh and 1,336 watts of power. The solar system used is 450 Wp for as many as 8 units of solar panels, 12 v 200 Ah battery capacity of as many as 8 units of batteries, and inverters with a power of 2000 Watts.

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