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All Journal Jurnal Rekayasa Proses METAMORFOSA Journal of Biological Sciences METANA SIMBIOSIS Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Prosiding Semnastek Jurnal Rekayasa Proses Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ JURNAL INOVASI EDUKASI INAQUE: Journal of Industrial & Quality Engineering Jurnal Pendidikan dan Konseling Unistek: Jurnal Pendidikan dan Aplikasi Industri International Journal of Engineering, Science and Information Technology Chemical Engineering Journal Storage (CEJS) Jurnal Teknologi Kimia Unimal Jurnal Teknologi Terapan and Sains 4.0
Eddy Kurniawan
Universitas Malikussaleh
Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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MODEL MATEMATIS LAJU PEMBAKARAN BIOBRIKET CAMPURAN SAMPAH ORGANIK DAN BUNGKIL JARAK (JATROPHA CURCAS L) Kurniawan, Eddy
METANA Vol 7, No 01 (2011): Juli 2011
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (205.311 KB) | DOI: 10.14710/metana.v7i01.4032

Abstract

ABSTRAK Potensi biomassa sampah organik dan bungkil jarak sebagai energi alternatif sedemikian melimpah, namun belum terolah sepenuhnya. Padahal komposisi sampah organik dan bungkil jarak merupakan biomassa dengan kandungan energi yang relatif besar. Apabila sampah organik dan bungkil jarak diolah bersama-sama dengan bungkil jarak dengan menggunakan bahan perekat tapioka dan tar akan diperoleh satu bahan bakar padat buatan sebagai bahan bakar alternatif.Dalam penelitian ini, komposisi yang di uji adalah briket dengan persentase sampah organik dan bungkil jarak yaitu 100/0; 75/25; 50/50; 25/75; 0/100. Penelitian dilakukan dengan pengumpulan, pengeringan, penghalusan, karbonisasi, pengayakan, pencampuran bahan baku (sampah organik, bungkil jarak, perekat tapioka dan perekat tar) dan pengepresan dengan tekanan 1 kg/cm².Dari  penelitian di laboratorium dan pendekatan model matematis didapatkan bahwa karakteristik laju pembakaran briket komposisi sampah organik dan bungkil jarak (25/75) dengan bahan perekat tar, lebih cepat terbakar dan suhu yang dicapai optimal. Briket yang dihasilkan dengan perekat tar tidak disukai karena berasap, sedangkan briket yang dihasilkan dengan perekat tapioka lebih disukai karena tidak berasap. Kata kunci : Briket, bahan perekat, pembakaran   ABSTRACT The pontential of biomass municipal waste and jathropha oil cakes in such is abundant, but has not been fully processed. The municipal waste and jathropha oil cakes can be converted into biobriquette via pyrolisis, which can be used as alternative fuel. Tar and tapioca adhesive were applied for the binder. In this study, briquettes with the mass ratio of municipal waste and jathropha oil cakes of 100/0; 75/25; 50/50; 25/75; 0/100 have been produced and tested. Reasearch was done by collecting, drying, testing, carbonization, screaning, mixing raw materials (municipal waste, jathropha oil cakes, tapioca adhesive and tar adhesive) and pressing at  1 kg/cm². Laboratory work and mathematical model showed that the rate of combustion and charateristic of  the briquette  with composition of municipal waste and jathropha oil cakes is (25/75), with adhesive tar, burns faster. Briquettes produced with the adhesive tar are not preferred because of the smoke, while the briquettes produced with tapioca adhesive are preferred because of the smoke free. Keywords : Briquette, adhesive materials, combustion
A COMPARATIVE STUDY BETWEEN ENGLISH AND KOREAN INTERROGATIVE SENTENCES Kurniawan, Eddy; Silvia, Resi
JURNAL INOVASI EDUKASI Vol 3 No 1 (2021): JURNAL INOVASI EDUKASI
Publisher : LPPM Universitasdiwangsa Jambi

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Abstract

This study discusses English And Korean Interrogative Sentences. It is aimed at describing the forms and types of English and Korean Interrogative Sentences and finding out the similarities and the differences between English and Korean Interrogative Sentences. This research belongs to descriptive and comparative type. The research object in this study is English and Korean Interrogative Sentences. And the data form in this study is the sentences. The researcher took the sources of data from English and Korean grammar books, English and Korean magazines, English and Korean newspapers, English students books for high school published by Erlangga, and Korean course students books. The techniques for collecting data used noting technique, separating technique, and transferring technique. The data analyzing techniques used three technique; they are description, interpretation and analysis. The result of this research showed that the types of English interrogative sentences are ‘Ye/No Question, WH-Question, Subject Question, and Tag Question’. The types of Korean interrogative sentences are ‘Yes/No interrogative, Alternative interrogative, WH-interrogative, and Tag Question’. The forms of English interrogative sentences are ‘Yes/No Questions with Auxiliary Be, Auxiliary Do/Does/Did, Auxiliary Have/Has/Had, Modal Auxiliary, WH-Questions with Auxiliary Be, Auxiliary Do/Does/Did, Auxiliary Have/Has/Had, Modal Auxiliary, Subject Questions with Auxiliary Be, Auxiliary Do/Does/Did, Auxiliary Have/Has/Had, Modal Auxiliary, Tag Questions with Auxiliary Be, Auxiliary Do/Does/Did, Auxiliary Have/Has/Had, Modal Auxiliary.’ The forms of Korean interrogative sentences are ‘Yes/No Interrogatives with Final Ending, Interrogative with Final Ending, Interrogative with Final Ending
Investigasi Energi Termal pada Mesin Diesel Tipe SULZER ZAV 40S dengan Bahan Bakar Marine Fuel Oil (MFO) Marcelina, Marcelina; Khairi, Syahrul; Kurniawan, Eddy; P Yolanda, Kristina Desideria
UNISTEK Vol 8 No 2 (2021): Agustus 2021 - Januari 2022
Publisher : UNIVERSITAS ISLAM SYEKH - YUSUF TANGERANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33592/unistek.v8i2.1383

Abstract

The study of thermal energy produced by the Sulzer ZAV 40S diesel engine using Marine Fuel Oil (MFO) can affect the engine combustion process because of the change in fuel chemical energy into internal work. The heat energy generated in the diesel engine where the ignition process when the piston approaches the dead point is then followed by the presence of fuel, namely MFO. The fuel will be sprayed through the nozzles into the combustion chamber. This will result in a complete combustion process where the composition of the mass of air and fuel in the cylinder will generate heat due to the high temperature. The results of the calculation that the need for fuel and air to produce the energy value (Q) of this diesel engine is 808.33 Kcal and the power (Ni) is 4,602.09 PK in every second while the mass of MGO is 5 Kg and air is 130 Kg in every minutes for continuous rotation of 500 rpm.
PERANCANGAN ALAT PENGUPAS SABUT KELAPA MENGGUNAKAN METODE VDI 2221 Prima, Febri; Japri, Bryan Anthony; Kurniawan, Eddy; Lubis, Gita Suryani; Ivanto, Muhammad; Ivontianti, Wivina Diah; Oktaviani, Eva Pramuni
Inaque : Journal of Industrial and Quality Engineering Vol 9 No 2 (2021)
Publisher : Teknik Industri Unikom

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1478.799 KB) | DOI: 10.34010/iqe.v9i2.5147

Abstract

The increasing demand for coconut productin in Sungai Kupah Village, Kuburaya Regency has resulted in workers needing a tool that can complete work more quickly and effiently. The tools used today stil use wedges where their use takes a long tie because the process in the process relies on human power. In additin, with non-ergonomic work positins, workers can also experience several work-related diseases such as back pain and back pain. The objecties of this research are (1) Designing an ergonomic coconut peeler according to consumer needs (2) Testig the performance of the tool (3) Testig worker fatiue before and aftr using the tool (4) Testig the level of consumer satifactin. The solutin used in this study is the VDI 2221, CVL method approach, measuring tool performance and analyzing the level of satifactin. The results obtained in this study are (1) produce a tool design according to consumer needs and have paid attntin to ergonomic aspects (2) The design of this tool produces a fairly fast stripping tie of 143 peeling fruit/hour when compared to tools using a wedge, namely 92 peeling fruit/hour (3) Worker fatiue test aftr using this tool showed 14.42 % of coconut owners, 11.20 % of worker 1 and 10.48 % of worker 2. This test resulted in CVL below 30% where workers did not experience fatiue. (4) Respondents feel comfortable with the designed tool as evidenced by the results of the 4.8 Linkert scale. Meanwhile, for ease of operatin, the result is 4.3, which means that respondents fid it easy to operate the designed tool. The conclusion in this study is that the currently designed tools are quite effctie, ergonomic and able to reduce the level of worker fatiue.
OPTIMALISASI POTENSI SUMBER DAYA DESA SUNGAI ITIK, KUBU RAYA, KALIMANTAN BARAT Maleiva, Lalak Tarbiyatun Nasyin; Marcelina, Marcelina; Gani, Usman A; Khairi, Syahrul; Kurniawan, Eddy
Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Vol 9 No 1 (2022): Januari
Publisher : Lembaga Penelitian, Penerbitan dan Pengabdian Masyarakat (LP3M) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/ppkm.v9i1.2210

Abstract

Desa Sungai Itik memiliki banyak pontensi untuk meningkatkan perekonomian di masyakatnya. Beberapa potensi yang dimiliki desa ini di antaranya UMKM (amplang), industri kecil (gula semut), peternakan (ikan nila), perkebunan (kelapa dan pisang), dan pertanian (padi). Potensi-potensi ini telah dioperasikan namun dalam proses pelaksanaannya masih terdapat kendala-kendala sehingga membuat para pelaku usaha kurang termotivasi untuk berwirausaha. Adapun kegiatan-kegiatan yang telah dilakukan untuk mengatasi kendala ini di antaranya sosialisasi mengenai manajemen usaha, pelatihan pembuatan pakan ikan nila dan pupuk dari limbah pertanian, serta sosialisasi manajemen usaha dan diskusi untuk memberikan motivasi dan pengaruh positif kepada warga desa sehingga para pelaku usaha dapat menguasai strategi dan metode untuk menghasilkan profit yang lebih besar dari usahanya. Adapun dampak positif lainnya adalah menciptakan masyarakat yang eko-kreatif sehingga dapat menurunkan tingkat pengangguran dan meningkatkan kesejahteraan masyarakat Desa Sungai Itik.
Synthesis of Cellulose Stearate Ester as Wet Strength Agent for Synthesis of Bio-polybag from Oil Palm Empty Fruit Bunch Eddy Kurniawan; Rizka Mulyawan; Angga Tri Agusna PA; Wika Armadani; Zainuddin Ginting
International Journal of Engineering, Science and Information Technology Vol 2, No 2 (2022)
Publisher : Master Program of Information Technology, Universitas Malikussaleh, Aceh Utara, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.502 KB) | DOI: 10.52088/ijesty.v2i2.227

Abstract

Biodegradable polybags are an alternative to overcome the weakness of synthetic polybags because of their degradation properties. Oil palm empty fruit bunches contain a lot of cellulose so that they can be used as a biodegradable polybag. Wet Strength serves to increase the physical strength of bio-polybags when exposed to water (in wet conditions) so that water content stability is required. In this study, Cellulose Stearate Esters were synthesized in an effort to increase the stability of the water content in bio-polybags. Cellulose Stearate Esters are synthesized through a transesterification reaction between -Cellulose isolated from Oil Palm Empty Fruit Bunches (EFB) with methyl stearate. The synthesis of cellulose stearate esters was carried out by refluxing for 2 hours using methanol solvent with various catalysts Na2CO3 5, 10, 15, 20 mg and with volume variations of methyl stearate 5, 10, 15. And the best variation was determined based on the degree of substitution test, namely with variations Na2CO3 catalyst 20 mg and volume of methyl Stearate 15 ml, amounting to 1.95. The result of the synthesis, namely cellulose stearate, was tested for functional groups by FT-IR spectroscopy and surface morphology using SEM. The formation of cellulose stearate is supported by the FT-IR spectrum in the wavenumber region of 3468.01 cm-1 indicating an OH group, 3062.96 cm-1 indicating a CH stretching group, 1695.43 cm-1 indicating a C=O group, cm-1 indicating a CH bending group, 1095.57cm-1 indicates a COC group, 609.51cm-1 indicates a (CH2)n>4 group. The results of surface morphology analysis using SEM showed that the surface of cellulose stearate looked homogeneous, more regular and had denser cavities than -Cellulose
Karakterisasi dan Laju Pembakaran Biobriket Campuran Sampah Organik dan Bungkil Jarak (Jatropha curcas L.) Eddy Kurniawan; Wahyudi Budi Sediawan; Muslikhin Hidayat
Jurnal Rekayasa Proses Vol 6, No 2 (2012)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.876 KB) | DOI: 10.22146/jrekpros.4697

Abstract

Potensi limbah biomassa dan bungkil jarak pagar cukup besar dan saat ini belum termanfaatkan. Kedua bahan tersebut dapat diolah menjadi bio-arang melalui proses pirolisis. Bio-arang dapat digunakan sebagai bahan bakar. Tar dan tepung tapioka digunakan sebagai perekat dalam pembuatan briket arang. Pada penelitian ini digunakan briket arang dengan fraksi massa bungkil jarak pagar 0, 25, 50, 75 dan 100%. Percobaan diawali dengan pembuatan arang, penghalusan arang dan pengayakan ukuran 35 mesh, pencampuran bahan baku dengan pelbagai komposisi dengan penambahan perekat (tapioka atau tar) kemudian ditekan dengan tekanan 1 kg/cm2. Selanjutnya, briket dianalisis kuat tekan, kadar air, kadar bahan mudah menguap, kadar abu, karbon terikat dan nilai kalor. Pembakaran briket dilakukan untuk mempelajari laju pembakaran dengan model matematis. Hasil analisis model matematis menunjukkan bahwa laju pembakaran briket pada komposisi bungkil jarak 75% dengan perekat tar, lebih cepat. Briket yang menggunakan perekat tar memberikan asap pada saat dibakar, sedang penggunaan perekat tapioka tidak manghasilkan asap. Model matematis yang diajukan dapat menggambarkan laju pembakaran briket. Parameter kinetik dan laju pembakaran dapat diperoleh dari model yang diajukan. Kata kunci: briket, bahan perekat, laju pembakaran, parameter kinetik The potential of biomass municipal waste and jatropha cakes is abundant, but has not been utilized. These materials can be converted into biobriquette via pyrolisis, which can be used as alternative fuel. Tar and tapioca adhesive were applied for the binder. In this study, briquettes with the mass fraction of jatropha cakes of 0, 25, 50, 75 and 100% were used. Research was done by performing carbonization, screening (35 mesh), mixing raw materials (municipal waste, jatropha cakes, tapioca adhesive and tar adhesive) and pressing at 1 kg/cm². Briquettes were then analyzed for compressive strengh, heating value, the moisture content, volatile matter, ash and fixed carbon. The combustion of the briquette was undertaken to study the rate of combustion. Mathematical model showed that the rate of combustion of the briquette with composition of municipal waste and jatropha oil cakes (25% : 75%) with adhesive tar was faster. Briquettes with adhesive tar produce smoke when burned, while briquettes with tapioca adhesive is smoke-free. Therefore it is more preferable. The proposed mathematical model describes the rate of combustion of the briquette well. The kinetic parameter of the rate of combustion were also obtained. Keywords: Briquette, adhesive materials, rate of combustion, kinetics parameter.
Pelepasliaran Elang Jawa di Kawasan Cagar Alam Gunung Picis dan Cagar Alam Gunung Sigogor, Jawa Timur Fajar DNA; Gunawan Gunawan; Tri Wahyu Widodo; Rully Marzuli; Sigit Trahnawan; Eddy Kurniawan
Metamorfosa: Journal of Biological Sciences Vol 6 No 2 (2019)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2019.v06.i02.p14

Abstract

Cagar Alam (CA) Gunung Picis dan Cagar Alam (CA) Gunung Sigogor dipilih sebagai lokasi pelepasliaran elang jawa hasil sitaan sejak tahun 2016. Tercatat 2 ekor elang jawa dilepaskan di kawasan tersebut, dimana satu berpindah ke lokasi lain yang berjarak sekitar 7 km sedangkan elang jawa lainnya masih menggunakan kawasan itu sebagai habitatnya. Berdasarkan hasil pemantauan yang dilakukan, hingga tahun 2018, populasi elang jawa di kawasan tersebut diperkirakan berjumlah 11-13 ekor. Keywords: Elang jawa, Pelepasliaran, Gunung Picis, Gunung Sigogor.
Pengaruh Perbandingan Volume Em4 Dengan Massa Serat Tandan Kosong Kelapa Sawit Pada Pembuatan Pupuk Organik Cair Dari Limbah Cair Industri Kelapa Sawit Rouzatul Jannah; Eddy Kurniawan; Rozanna Dewi
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2021): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 11 2021
Publisher : Prosiding SNST Fakultas Teknik

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Abstract

Pupuk organik cair adalah pupuk yang berwujud cair yang bahan dasarnya berasal dari hewan atau tumbuhan yang sudah mengalami fermentasi. Pupuk organik cair mengandung unsur hara nitrogen, fosfor, kalium dan unsur hara mikro lainnya yang dibutuhkan oleh tanaman serta dapat memperbaiki unsur hara dalam tanah. Tujuan dari penelitian ini yaitu untuk menganalisa kandungan nitrogen, fosfor dan kalium dalam pupuk organik cair yang terbuat dari bahan baku limbah cair industri kelapa sawit dengan penambahan serat tandan kosong kelapa sawit. Salah satu pembuatan pupuk organik cair melalui proses fermentasi. Dalam hal ini digunakan bioaktivator EM-4 effective microorganisme dan variasi penggunaan volume EM4 dengan penambahan serat tandan kosong kelapa sawit. Variasi perbandingan EM4 (ml) dengan massa serat tandan kosong kelapa sawit (gram) adalah 20:10, 30:15, 40:20, 50:25, 60:30 dan difermentasikan selama 9, 11 dan 13 hari. Hasil penelitian dari perbandingan volume EM4 dengan massa serat tandan kosong kelapa sawit diperoleh pupuk organik yang terbaik adalah pada perbandingan 60:30 dengan kandungan unsur hara nitrogen 2,47% fosfor 3,14% dan kalium 2,29% pada hari ke 13.
Pemanfaatan Limbah Cair Industri Kelapa Sawit Sebagai Pupuk Organik Cair Dengan Penambahan Abu Tandan Kosong Kelapa Sawit Fitriani Fitriani; Eddy Kurniawan; Jalaluddin Jalaluddin
Prosiding SNST Fakultas Teknik Vol 1, No 1 (2021): PROSIDING SEMINAR NASIONAL SAINS DAN TEKNOLOGI 11 2021
Publisher : Prosiding SNST Fakultas Teknik

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Abstract

Pupuk organik cair adalah larutan dari hasil pembusukan bahan-bahan organik yang berasal dari sisa tanaman, kotoran hewan, dan manusia yang kandungan unsur haranya lebih dari satu unsur pupuk yang bahan dasarnya berasal dari hewan atau tumbuhan yang sudah mengalami fermentasi dan bentuk produknya berupa cairan. Tujuan dari penelitian ini yaitu untuk menganalisa kualitas unsur hara makro dalam pupuk organik cair dari limbah cair pabrik kelapa sawit dengan penambahan abu tandan kosong. Pembuatan pupuk organik cair ini dilakukan melalui proses fermentasi. Dalam hal ini digunakan bioaktivator effective microorganisme (EM-4) dan penggunaan dua variasi bahan untuk mengetahui kualitas unsur hara makro yang terbaik untuk pupuk organik cair. Variasi bahan yang ditambahkan kedalam 1 liter limbah cair pabrik kelapa sawit berupa EM4, dan abu tandan kosong yaitu 30 ml : 15 gr, 40 ml : 20 gr, dan 50 ml : 25 gr. Kemudian difermentasikan selama 8, 10 dan 12 hari. Hasil penelitian menunjukkan bahwa kandungan N, P, dan K yang terbaik pada pupuk organik cair ini adalah pada waktu fermentasi 12 hari dengan variasi bahan 50 ml : 25 gr yaitu untuk nitrogen (N) 2,77%, phospor (P2O5) 3,66%, kalium (K2O) 2,39%.
Co-Authors Andri Nur rizky Angga Tri Agusna PA Basuki Santoso Chairina Chairina Cut Milya Cut Rika Saffira Dahliana Abdullah Eggi Diswanto Faisal Faisal Fajar DNA Febri Prima Fitriani Fitriani Fuji Maharani GITA SURYANI LUBIS Gunawan . Gunawan Gunawan Hijratul Izzati Inggit Sari Ishak Ishak Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Jalaluddin Japri, Bryan Anthony Lisa Andriani Lukman Hakim Mahfuddara Mahfuddara Marcelina Marcelina, Marcelina Masrullita Masrullita Masrullita Masrullita Mauliza Asri Meriatna Muammar Khadafi Muarif, Agam MUHAMMAD IVANTO Muhammad Muhammad Muhammad Muhammad Muhammad Muhammad Mulyatun Mulyatun Muslikhin Hidayat Mutiawati Mutiawati Nasrul ZA Nasrul Za Za Nasrun, Mahdalena Nita Sari Novi Sylvia Nurma Nurma Nurul Safriani Oktaviani, Eva Pramuni P Yolanda, Kristina Desideria Putri Nurjannah Resi Silvia Rina Zahara Rizka Mulyawan Rouzatul Jannah Rouzatul Jannah Rozanna Dewi Rozanna Dewi Rozanna Dewi Rully Marzuli Sigit Trahnawan Sri Dea Varissa Sulhatun Sulhatun Sulhatun Sulhatun Syahrul Khairi Syamsul Bahri Tauhid Nursalim Tri Wahyu Widodo Usman A. Gani Wahyudi Budi Sediawan Wika Armadani Wivina Diah Ivontianti, Wivina Diah Wiza Ulfa Fibarzi Yuni O Nainggolan Yupiyanti Yupiyanti Zahratun Mauliza Zainuddin Ginting Zulfida Najla Azni Zulnazri Zulnazri