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All Journal Jurnal Teknik Kimia USU Jurnal Redoks Jurnal Teknik Kimia Jurnal Engine: Energi, Manufaktur, dan Material Kinetika Journal of Language Education, Linguistics, and Culture Jurnal Citra Pendidikan AJAD : Jurnal Pengabdian kepada Masyarakat Aptekmas : Jurnal Pengabdian Kepada Masyarakat Chemical Engineering Journal Storage (CEJS) Jurnal Teknik Kimia USU JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI Reformasi Hukum Trisakti Jurnal Citra Pendidikan Anak Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS JURNAL EKSPERIMENTAL : Media Ilmiah Pendidikan Guru Madrasah Ibtidaiyah Jurnal Pengabdian Masyarakat dan Riset Pendidikan Journal of Innovative and Creativity
Erlinawati
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UJI KINERJA ROTARY DRYER BERDASARKAN EFISIENSI TERMAL PENGERINGAN SERBUK KAYU UNTUK PEMBUATAN BIOPELET Ahmad Zikri; Erlinawati; Irawan Rusnadi
Jurnal Teknik Kimia Vol 21 No 2 (2015): Jurnal Teknik Kimia
Publisher : Chemical Engineering Department, Faculty of Engineering, Universitas Sriwijaya

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Abstract

Permintaan sumber daya energi setiap harinya semakin meningkat, terutama untuk bahan bakar fosil atauenergi terbarukan seperti minyak, gas, dan batubara. Peningkatan ini tidak juga disertai dengan produksibahan bakar fosil. Cara yang bisa yang bisa kita lakukan untuk mengatasi masalah ini salah satunyamenggunakan energi terbarukan seperti biopelet dari serbuk kayu yang didukung oleh teknologipengeringan dalam proses pengobatan. Proses pengeringan adalah langkah yang sangat penting untukmenghasilkan bahan bakar biomassa dengan kualitas baik, pengeringan ditujukan untuk mengurangikandungan air dalam bahan baku biomassa dan meningkatkan nilai kalor. Tujuan dari penelitian iniadalah untuk membuat sebuah prototipe rotary dryer untuk biomassa, dan menghasilkan produk keringuntuk biopellets. Diawali dengan disain struktural alat yang akan dibuat dan menganalisis sistem termaldengan variasi pengeringan (30 menit, 45 menit, dan 60 menit) pada suhu konstan 60 0C. Hasil penelitianmenunjukkan bahwa pengeringan dengan waktu yang sangat lama, penurunan kadar debu kayu akan lebihbesar. Namun, efisiensi termal Tampilkan proses pengeringan ini masih cukup rendah karena ada besarkehilangan panas.
PENGARUH RASIO UDARA BAHAN BAKAR LPG TERHADAP FLAME TEMPERATURE DAN EFISIENSI TERMAL CROSS SECTION WATER TUBE BOILER Apriani, Marsa; Susanti, Amalia; Has, Cresa Moneta; Tahdid; Manggala, Agus; Erlinawati; Zurohaina
KINETIKA Vol. 12 No. 3 (2021): KINETIKA 01112021
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Boiler is one of energy conversion machines. The boiler function is converting water into steam by utilizing the heat from the chemical reaction between fuel and oxygen in the air which is commonly known as the combustion reaction. The research purposes are to determine the effect of the LPG fuel air ratio on the flame temperature and thermal efficiency of cross section water tube boiler, and to determine the optimum fuel air ratio which produces the highest flame temperature and thermal efficiency. The air fuel ratio that use in this research are 29.16; 29.44; 29.71; 29.99; and 30,26. Based on the research, it is known that the fuel air ratio affects both of flame temperature and thermal efficiency of the cross section water tube boiler. On the range of air fuel ration 29.16 to 30.26, it is known that the greater the fuel air ratio, the higher the flame temperature and thermal efficiency The optimum air fuel ratio in this research is 29.99 which produces 680oC flame temperature and 58.85% on steady state saturated steam production, 7010C flame temperature and 59.71% thermal efficiency on non steady state saturated steam production, and 7040C flame temperature and 59.32% on superheated steam production.
PENGGUNAAN MEDIA LINGKUNGAN DALAM MENINGKATKAN HASIL BELAJAR BIOLOGI PADA MATERI KEANEKARAGAMAN HAYATI DI KELAS X MAN 4 PIDIE T.P 2018/2019 Erlinawati
JURNAL EKSPERIMENTAL : Media Ilmiah Pendidikan Guru Madrasah Ibtidaiyah Vol. 7 No. 1 (2018): Juni
Publisher : Sekolah Tinggi Ilmu Tarbiyah Al-Hilal Sigli Aceh- Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58645/eksperimental.v7i1.181

Abstract

One of the aims of this research is to implement the use of nature as the source of learning in class X MAN 4 Pidie of the academic year 2018/2019. This study is a classroom action research which was conducted in two cycles. Each cycle consisted of planning, acting, observing and reflecting. The subjects of the research were the students of MAN 4 class X. They were 36 students. The object of the study is biology in class X – which was implemented through the use of nature as media to learn. The result indicated that there were improvements in students understanding through learning by nature, it can be seen that the percentage was increased in each cycle. Cycle I, 65.25 %, cycle II, 91. 5 %. It was increased 26,25%.
Konstruksi Penilaian Membaca Pembelajaran Bahasa Indonesia Kelas X SMA Negeri Se-Kecamatan Tenayan Raya Erlinawati; Sukenti, Desi
J-LELC: Journal of Language Education, Linguistics, and Culture Vol. 1 No. 2 (2021): J-LELC: Journal of Language Education, Linguistics, and Culture
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (113.902 KB) | DOI: 10.25299/j-lelc.2021.7220

Abstract

The research objectives are 1) To determine the construction of the assessment of reading Indonesian saga for class X SMA Negeri Tenayan Raya District. 2) to determine the construction of the assessment of reading Indonesian poetry for class X SMA Negeri Tenayan Raya Pekanbaru. The research method is a qualitative type of phenomenology. The theory used is Setiadi (2016), Yunus (2012), Suherli (2017), Djiwandono (2011), Zainal (2017). The data sources for this study were 5 Indonesian language teachers. In-depth interview data collection techniques and documentation. Phenomenological data analysis techniques. The results of the research on the construction of saga reading assessments are speech sounds, words, sentences, letters, language, reading, paying attention to reading pauses, sentence breaks, paragraph breaks, pronouncing sentence contents, letter contents, punctuation marks, appreciating the content. While the construction of the assessment of reading poetry is the sound of diction, sound, letters, sentences, rhyme, rhythm, stanzas, figure of speech, confidence, style, appreciation. The conclusion of this research is that the construction of the assessment of reading Indonesian saga in grade X is formed from thirteen sub themes, while the construction of the assessment of reading poetry consists of eleven sub themes.
UJI KINERJA PROTOTYPE KOMPOR OLI BEKAS DITINJAU DARI KOMPOSISI OLI TERHADAP LAJU ALIR BAHAN BAKAR Febriana, Ida; Yuka Fari Saputra; Najib Nursal Alfarabi; Erlinawati; Yunanto, Isnandar
Jurnal Redoks Vol. 9 No. 1 (2024): REDOKS JANUARI - JUNI
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/redoks.v9i1.13143

Abstract

Oli merupakan salah satu limbah b3 (bahan berbahaya dan racun) dimana oli ini dapat mencemari lingkungan, termasuk mencemari air dan tanah. Oleh karena itu, limbah oli harus dikurangi dengan mengunakannya sebagai bahan bakar pembakaran. Dengan mencampurkan solar dengan oli akan membuat suhu pembakaran yang cukup tinggi. Pada penelitian ini didapatkan kondisi paling optimum yaitu pada campuran oli 50% :50% solar dengan mengoptimalkan pembakaran menggunakan laju alir udara 5,4-5,6 m/s agar dapat mengurangi terjadinya pembakaran tidak sempurna sehingga tidak dihasilkan asap yang pekat. Pada campuran oli 50% : 50% solar ini juga dihasilkan laju alir bahan bakar 1,8L/jam dan Air Fuel Ratio 24,69 dengan suhu pembakaran 530-550 °C yang memiliki nilai kalor 10772,149 cal/gram sehingga dapat disimpulkan Sampel ini merupakan Sampel paling optimum karena menggunakan oli 50% dari volume Sampel yang membuat pembakaran menjadi lebih ekonomis dimana oli memiliki nilai yang lebih ekonomis dan mudah diperoleh dibandingkan bahan bakar cair lain.
Produksi Gas Hidrogen Dengan Proses Elektrolisis Air Laut Ditinjau Dari Konsentrasi KOH daffa zulfany; Erlinawati; Agus Manggala; Indah Pratiwi
Jurnal Redoks Vol. 9 No. 2 (2024): REDOKS JULI - DESEMBER
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/redoks.v9i2.15012

Abstract

Krisis energi bukan hanya menjadi isu di dunia, tetapi juga menjadi isu di Indonesia. Salah satu energi terbarukan dan ramah lingkungan yang berpotensi untuk dikembangkan ialah Hidrogen. Metode elektrolisis air adalah salah satu teknik pemisahan senyawa oksigen(O2) dan hidrogen(H2) yang terdapat pada air(H2O) dengan bantuan arus listrik yang merupakan teknologi yang bebas emisi, namun untuk mempercepat reaksi dan produksi hidrogen di butuhkan bantuan katalis agar dapat menghemat waktu reaksi dan meningkatkan produksi gas hidrogen. Dalam penelitian ini, dilakukan produksi gas hidrogen dengan menggunakan bahan baku air laut dengan penambahan elektrolit KOH dan variasi tegangan. Dalam hal ini konsentrasi yang digunakan adalah 0,005: 0,011; 0,017 dan 0,023 serta variasi tegangan 10 V, 11 V, dan 12 V. Dari hasil penelitian, produksi gas hidrogen teremdah pada konsentrasi 0,005 M dan tegangan 10 V yaitu sebesar 27,27 ml, sedangkan produksi gas tertinggi pada konsentrasi 0,023 M yaitu sebesar 122,29 ml. Dari hal tersebut, dapat disimpulkan bahwa semakin besar konsentrasi larutan elektrolit maka semakin besar gas hidrogen yang dihasilkan,efisiensi elektrolisis semakin meningkat dikarenakan jumlah energi yang digunakan sebanding dengan jumlah hidrogen yang dihasilkan. efisiensi terendah pada konsentrasi 0,005 M dan tegangan 10 V yaitu sebesar 23,44 % dan tertinggi pada konsentrasi 0,023 dan tegangan 12 V yaitu sebesar 46,72 %.
Efisiensi Termal Cross Section Double Drum Water Tube Boiler Pengaruh Rasio Udara Bahan Bakar Solar Berbasis Water Level Control (AM61-F) Pada Produksi Saturated Steam Proses Kontinyu Tiesyah Mainur Aini; Tahdid; Isnandar Yunanto; Erlinawati
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 2 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i2.1924

Abstract

A Boiler is a type of closed vessel that transfers heat energy from the combustion process to water until it becomes hot steam (steam). To produce good steam, the Boiler must be reliable in its heat transfer system, mass transfer system and hydrodynamic system. This will also have an impact on cost, thermal efficiency and the environment. In order to produce steam, good combustion and proper water level regulation are required. Combustion is an exothermic reaction that takes place very quickly, which releases energy in the form of heat and flame and is able to spread heat through a medium. In order for combustion to occur optimally, it must pay attention to the value of the Air Fuel Ratio (AFR). The regulation of the water level also affects the steam produced. This study studies the variables of air fuel ratios (Air Fuel Ratio) 16, 18, 20, 22 and 24 as well as water level levels of 20%, 30%, 40%, 50% and 60%. From this study, a flame temperature value of 685.9°C was obtained with a thermal efficiency of 69,61% Specific Fuel Consumption 0,0000339 kg/kJ which is in the 4th experiment, namely Air Fuel Ratio 22 and Water Level 50% with optimal combustion and steam production results. Keywords: Boiler, Saturated Steam, Air Fuel Ratio, Water Level, Energy, Thermal Efficiency, Specific Fuel Consumption.
Uji Kinerja Dry Cell Electrolyzer Dengan Pengaruh Konsentrasi Elektrolit Terhadap Produksi Hidrogen sebagai Sumber Energi Fuel Cell Sheli Fitriyani; Erlinawati; Sahrul Effendy
Jurnal Permadi : Perancangan, Manufaktur, Material dan Energi Vol 6 No 03 (2024): JURNAL PERMADI: PERANCANGAN, MANUFAKTUR, MATERIAL DAN ENERGI
Publisher : Universitas Nusa Putra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52005/permadi.v6i03.168

Abstract

Hydrogen is a renewable energy source with the potential to replace fossil fuels due to its eco-friendly nature. This study aims to conduct a performance test of dry cell electrolyzer with variations in KOH electrolyte concentration so that optimal hydrogen production in fuel cells can be determined. The dry cell was chosen to mitigate explosion risks in wet cells caused by short circuits and uncontrolled gas pressure in previous studies. KOH concentrations from 0.1 M to 0.5 M were tested at 10 V and 12 V for 30 minutes. The results indicate that a 0.3 M concentration at 12 V achieved the highest hydrogen yield of 1.1829 liters. The optimum condition was found at 0.3 M and 10 V with 37% efficiency, producing 0.8206 liters of hydrogen with an SEC of 31,656.65 J/L. This hydrogen powered a PEM fuel cell, achieving a maximum efficiency of 45.2% under an LED lamp load. This modification highlights potential improvements in electrolyzer performance for clean energy applications.
Edukasi Urgensi Pemeriksaan Golongan Darah dan Aplikasinya pada Santriwati Al-Fityan School Aceh Safwan; Hadijah, Siti; Darmawati; Erlinawati; Putri, Safridha Kemala; Fitriana; Fajarna, Farah; Syahnita, Hastuti; Situmorang, Paska Ramawati; Mutia, Liza; Lubis, Nita Andriani; Lasmini, Titi; Rosmiati, Karolina; Wardhani, Sri Muri Dasa
AJAD : Jurnal Pengabdian kepada Masyarakat Vol. 4 No. 3 (2024): DECEMBER 2024
Publisher : Lembaga Mitra Solusi Teknologi Informasi (L-MSTI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59431/ajad.v4i3.390

Abstract

Blood type is important for human life and is very useful in medical matters such as determining the blood type of parents and children, the success of medical procedures such as blood transfusions and organ transplants. Transfusion of blood from an incompatible group causes an immunological transfusion reaction resulting in hemolytic anemia, kidney failure, shock and death. Most of the students of Al-Fityan School Aceh's tahfiz program do not know their blood type. Apart from that, the students of the Al-Fityan School Aceh tahfiz program have minimal knowledge about blood types. The aim of this community service is to increase students' knowledge about the urgency of checking blood types and its application in everyday life. The target of this community service is the female students of the Al-Fityan School Aceh tahfiz program, consisting of 47 people. The implementation begins with education first and continues with a blood type check. Examination Results: The blood group of the female students of Tahfis Al- Fityan School Aceh is blood group O, namely 70% (31 people), while blood groups A and B are 12.8% (6 people) respectively and the smallest blood group frequency is blood group AB, namely 8.5% (4 people).
Pengaruh Jumlah Sel Elektroda Terhadap Produksi Gas Hidrogen dengan Proses Elektrolisis sebagai Sumber Energi Fuel Cell Erlinawati; Mahesi, Trin Zikir; Saputra, Richo; Febriana, Ida; Effendy A, Sahrul
Jurnal Teknik Kimia USU Vol. 14 No. 1 (2025): Jurnal Teknik Kimia USU
Publisher : Talenta Publisher (Universitas Sumatera Utara)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jtk.v14i1.18064

Abstract

Hydrogen is an environmentally friendly, carbon-free renewable energy source that can be generated through reactions with oxygen to produce electricity. One method of producing hydrogen is via water electrolysis. The aim of this study was to determine the optimal conditions for hydrogen gas production, specific energy consumption, and the use of hydrogen gas as an energy source for Proton Exchange Membrane (PEM) fuel cells, using potassium hydroxide (KOH) at concentrations of 0.1 M, 0.2 M, 0.3 M, and 0.4 M. The electrolysis process was conducted at a voltage of 10 volts for 30 minutes. The results showed that the highest hydrogen gas production, 0.8927 L, was achieved with 18 electrode cells and a KOH concentration of 0.3 M. The optimal specific energy consumption was 33,269 joules under the same conditions. The maximum efficiency of the PEM fuel cell was 47.25%, while the minimum efficiency was 44.80%
Co-Authors Agus Manggala Apandi, Khairul Apriani, Marsa daffa zulfany Darmawati Dini Pepilina Effendy A, Sahrul Fajarna, Farah Fayyadhilah, Muhammad Apta Febriana, Ida Fitriana Has, Cresa Moneta Hastuti Syahnita, Hastuti Heru Pringgodani Sanusi Hutagalung, Jesika Lamtiar Indah Pratiwi Indah Pratiwi Intan Sari Ira Gusti Riani Irawan Rusnadi Isnandar Yunanto Lety Trisnaliani Lubis, Nita Andriani Mahesi, Trin Zikir Manggala, Agus Miranda Yustikasari Mutia, Liza Najib Nursal Alfarabi Neilul Khalisa Putri, Safridha Kemala raudhatus saadah Rizkia, Putri Nurjanah Assyfa Rosmiati, Karolina Safridha Kemala Putri Safwan Sahrul Effendy Saputra, Richo Septi Eka Farika Sheli Fitriyani Siti Hadijah Situmorang, Paska Ramawati Sri Desi Natalia Sari Sri Rohwani Sukenti, Desi Surmala Dewi Susanti, Amalia Tahdid Tiesyah Mainur Aini Titi Lasmini WARDHANI, SRI MURI DASA Wiwin Maryani Yuka Fari Saputra Yunanto, Isnandar Zainap Hartati, Zainap Zikri, Ahmad Zurohaina