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Syakdani, Adi
Politeknik Negeri Sriwijaya
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Analisis Sistem Termal Pada Double Drum Water Tube Boiler Untuk Memproduksi Superheated Pengaruh Rasio Udara Bahan Bakar Gas Daffa Alidina; Ericx Arga; K.A Ridwan; Zurohaina Zurohaina; Adi Syakdani
Jurnal Pendidikan dan Teknologi Indonesia Vol 2 No 1 (2022): JPTI - Januari 2022
Publisher : CV Infinite Corporation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52436/1.jpti.132

Abstract

Water Tube Boiler adalah komponen alat yang dirancang untuk membentuk uap air yang memiliki tekanan dimana produksi uap pada ketel uap didapat dari pemanasan air yang uap nya dipampat menjadi bertekanan dan memiliki panas yang bersuhu tinggi. Proses pengapian terjadi pada bagian luar pipa yang lalu panas tersebut memanaskan pipa yang berisi air yang sebelumnya telah dikondisikan melalui economizer. Steam yang telah terbentuk kemudian dikumpulkan didalam wadah yang disebut steamdrum. Tekanan atau panas ini digunakan menjadi media pemanas, pengering, serta pembangkit listrik. Kualitas steam boiler ditentukan melaui desain awal boiler, kualitas air umpan, sirkulasi uap, tekanan boiler, temperatur, dan efisiensi boiler. Untuk menerima kualitas steam yang baik, ditentukan menggunakan syarat input bahan bakar serta udara pada proses pembakaran yang dimana bahan bakar yang dipergunakan wajib memiliki nilai kalor lebih besar supaya kemampuan udara bercampur dengan bahan bakar akan lebih baik. Perbandingan udara bahan bakar pada penelitian mengenai boiler menggunakan sistem double drum water tube boiler dilakukan pengamatan menggunakan dampak rasio udara divariasikan untuk mengetahui kualitas steam yang didapatkan. Adapun rasio yang digunakan yaitu: 129,32; 264,93; 341,27; 361,48 dan 441,81 serta flow bahan bakar sebesar 1,49 kilogram/jam. Tujuannya untuk mengetahui apakah efek rasio udara bahan bakar mempengaruhi kualitas steam yang dihasilkan
Efektivitas Temperatur dan Waktu Pemasakan terhadap Aktivitas Antioksidan pada Sirup Daun Binahong (Anredera cordifolia) menggunakan Vacuum Evaporator Adi Syakdani; Indah Purnamasari; Dwi Okta Larassakti
Fluida Vol 13 No 1 (2020): FLUIDA
Publisher : Jurusan Teknik Kimia, Politeknik Negeri Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35313/fluida.v13i1.1845

Abstract

Umumnya, sirup dibuat dari buah-buahan yang mengandung gula. Namun, sirup juga bisa dibuat dari daun, salah satunya adalah daun binahong. Daun binahong mengandung senyawa fenol tinggi, asam askorbat dan antioksidan sebagai penangkal radikal bebas. Dalam membuat sirup, suhu dan waktu memasak adalah salah satu faktor penting dalam mendapatkan sirup berkualitas SNI. Proses pemasakan dan pemekatan sirup daun binahong menggunakan evaporator vakum dengan variasi suhu (45, 50 dan 55oC) dan waktu (30, 60, 90 dan 120 menit). Dalam penelitian ini, aktivitas antioksidan sirup daun binahong diuji dengan metode DPPH (2,2-difenil-1-pikilhidrazil), uji viskositas dan uji organoleptik. Hasil terbaik dari analisis antioksidan dan organoleptik yang telah dilakukan adalah perlakuan suhu 50oC dengan waktu memasak 60 menit, dengan aktivitas antioksidan tinggi 60,3950% dan lebih stabil selama penyimpanan. Selain itu, berdasarkan hasil analisis organoleptik, perlakuan rasa terbaik pada suhu itu adalah 3,28 (suka), warna 2,63 (dianggap suka) dan bau 1,78 (tidak suka).
PRODUCTION OF GREEN DIESEL BASED ON PALM FATTY ACID DISTILLATE USING CATALYTIC HYDROGENATION METHOD Fithra Malvarinda; Adi Syakdani; Muhammad Taufik
Jurnal PPI Dunia Vol 5 No 2 (2022)
Publisher : OISAA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52162/jie.2022.005.02.7

Abstract

Green diesel is an alkane compound that is equivalent to petroleum based diesel oil. One of the ingredients that can be converted into green diesel is Palm Fatty Acid Distillate (PFAD). PFAD is a by-product of the refinery process in the production of cooking oil from Crude Palm Oil (CPO) which has not been widely used. Green diesel is produced using a catalytic hydrogenation process at a temperature of 300oC with a hydrogen pressure of 25 psia for 1.0 hour. 300 ml of PFAD is reacted with gas (hydrogen) H2 using NiMo / Al2O3 catalyst to accelerate the reaction. The variable that is used in this study is the number of catalysts of 0 gr; 0.1114 gr; 0.1507 gr; 0.2009 gr; 0.2541 gr; and 0.3075 gr. The use of a catalyst of 0.2009 grams per 300 ml of sample is the optimum condition in this study and yields a yield percentage of 36.5331%. The physical properties of green diesel obtained from this study include density at 40oC (751.5056 – 816.9221 kg/m3), kinematic viscosity at 40oC (3.6107 – 4.6831 mm2/s), moisture content (11.593 – 17.717 ppm), flash point (65.4 – 91.9oC), and heating value (43.2274 – 44.8834 MJ / kg).
Utilization of Eco-Enzymes from Fruit Skin Waste as Hand Sanitizer Rusdianasari Rusdianasari; Adi Syakdani; Muhammad Zaman; Febby Fitria Sari; Nabila Putri Nasyta; Rizka Amalia
AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Vol. 5 No. 3 (2021)
Publisher : Asia Pacific Network for Sustainable Agriculture, Food and Energy (SAFE-Network)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (284.28 KB) | DOI: 10.29165/ajarcde.v5i3.72

Abstract

Eco-enzyme is a multifunctional liquid produced from fermentation of waste or organic waste, brown sugar or granulated sugar, and water. Fermentation of eco-enzymes is carried out for ±3 months. The length of time fermentation affects color, aroma and pH. The resultingeco-enzyme liquid is dark brown and has a strong fresh sour aroma. Eco-enzymeliquid has an alcohol content and acetic acid. Alcohol and acetic acid are produced from the bacterial metabolic process that is naturally present in the rest of fruits and vegetables. Variations in the fermentation time of eco-enzymes used are 2.5 months and 3 months. Analysis conducted on eco-enzymes include pH tests and phytochemical screening tests. The pH value obtained in eco-eznyme 2.5 months is 3, while the pH value in eco-eznyme 3 months is 1.5. Eco-enzymes with a fermentation time of 3 months contain alkaloid compounds, flavonoids, saponins, and tannins. In this study Eco-eznyme was used as a hand sanitizer spray by diluting the eco-enzyme with aquadest. The dilution ratios used vary for each sample: 1:40, 2:40, 3:40, 4:40, 5:40. Analysis conducted on hand sanitizer spray include pH test, organoleptic test, and antibacterial activity test. Based on the results of the analysis, not all hand sanitizer samples meet SNI standards, the best samples obtained in hand sanitizer with an eco-enzyme fermentation time of 3 months and a dilution ratio of 5: 40. The results of the analysis showed that the value of pH 5, the level of aroma fondness in hand sanitizer 2.40, the favorite color level 2.46
KONVERSI LIMBAH PLASTIK LDPE MENJADI BAHAN BAKAR CAIR (BBC) MENGGUNAKAN KATALIS ALUMINIUM OKSIDA DAN Arizal Aswan; Adi Syakdani; Agus Manggala; Ica Monika; Miranda Dwi Cendani
KINETIKA Vol. 12 No. 2 (2021): KINETIKA 01072021
Publisher : Politeknik Negeri Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

According to data from the Kementerian Lingkungan Hidup dan Kehutanan (KLHK), the amount of waste in Indonesiain 2019 reached 68 million tons, and plastic waste is estimated at 9,52 million tons. Considering that the nature of plastic is difficult to decompose, it is necessary to handle environmentally friendly waste. One of the countermeasures for plastic waste is to convert it into liquid fuel through the pyrolysis process. The pyrolysis of LDPE plastic uses a catalytic cracking method with aluminium oxide and zeolite as catalyst. The independent variable of this study is the pyrolysis temperature variation. The temperature used are 150℃, 200℃, 250℃, 300℃, 350℃, 400℃, 450℃ and 500℃. The highest %yield using aluminium oxide was obtained at 350℃ is 8.34%, while higest %yield using zeolite was obtained at 500℃ is 10.5%.Based on the analysis conducted, it was found that the oil density using aluminium oxide was in the range746.66 kg/m3-815.61 kg/m3, when using zeolite oil density was in the range 0.72 gr/ml-0.758gr/ml. viscosity using aluminium oxide was in the range 2.143 mm2/s-2.730mm2/s and using zeolite was in the range 2.8893 cSt – 3.4589 cSt, flash point ranges from 26℃-32℃, calorific value using aluminium oxide using zeolite was 7587,1678 cal/gr and the results of pyrolysis oil using aluminium oxide and zeolite catalyst the GCMS analysis show that the highest percentage is the C8-C10 chain of 45.13% and 63%..
CHARACTERISTICS OF GLASS SOAP BASED ON VIRGIN COCONUT OIL (VCO) WITH THE ADDITION OF BASIL LEAF EXTRACT (OCIMUM BASILICUM L.) AS ANTISEPTICS Meilianti; Idha Silviyati; Adi Syakdani
KINETIKA Vol. 13 No. 02 (2022): KINETIKA 01072022
Publisher : Politeknik Negeri Sriwijaya

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Abstract

Soap is formed from a mixture of fat or oil with sodium or potassium salts made through the saponification process ofthe reaction between triglycerides and alkali. Glass soap is a innovation in the form of solid soap which has a smallsize in the form of a thin sheet that is easier to carry when active outside the home. Basil leaves contain flavonoid,tannins, saponins and other active ingredients that can be used as antibacterial. Glycerin can be used as a mixture insoap making as a plasticizer because it can make the texture of the soap elastic. The process of making glass soapuses a saponification process with variations in the addition of glycerin concentrations (w/w) of 5.5%, 10.5%, 15.5%,20.5%, 25.5% in curing time for 15 days. The results of the analysis showed that glass soap with the addition of 10%glycerin concentration with a curing time of 15 days was the best formulation and met the characteristics of SNI. Theresults of the analysis showed that the water content was 0.45%, the material was insoluble in ethanol 1.20%, ALB1.5%, free alkali 0.05%, and pH 10.
Synthesis and Characterization of Cellulose Acetate Membranes from Kepok Banana Stem (Musa acuminata x balbisiana) For Microfiltration Process Fitria Nur Anissa; Selastia Yuliati; Adi Syakdani
Equilibrium Journal of Chemical Engineering Vol 7, No 2 (2023): Volume 7, No 2 December 2023
Publisher : Program studi Teknik Kimia UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/equilibrium.v7i2.78825

Abstract

Abstract. Membrane is a separation technology between permeate and feed. The challenge in applying this technology is related to the ingredients that can cause fouling. Cellulose acetate membrane is a porous membrane as a solution to overcome fouling problems.The selectivity level of cellulose acetate membranes in the microfiltration process for water and wastewater treatment is very high. Utilization of kepok banana frond waste as an alternative material for making cellulose acetate membranes that are biodegradable, can be decomposed quickly by microorganisms with a limited shelf life. The aim of this research is to  apply cellulose acetate membranes from kepok banana fronds for the microfiltration process in water and wastewater treatment with varying concentrations of acetone using the phase inversion method. The cellulose content contained in the kepok banana fronds is 54.3%. The composition for making the membrane is 2 gr cellulose acetate; PVA 20 ml; and PEG 1.7 ml with various concentrations of acetone 15, 20 and 25 ml. The results of the SEM test of the membrane with a concentration of 25 ml of acetone solvent had the best characteristics with a pore size of 0.0932 μm; thickness of 1.778 mm and swelling index of 9.87%. The highest average flux value was owned by the membrane with a concentration of 20 ml, namely 71.3444 l/m².hour The lowest flux value was owned by the membrane with a concentration of 25 ml, namely 55.5549 l/m².hour.Keywords:Membrane, Microfiltration, Cellulose Acetate, Banana Frond, Acetone
Performance Test of the Molecularly Imprinted Polymer (MIP) Endosulfan Sensor Potentiometrically Bow, Yohandri; Syakdani, Adi; Purnamasari, Indah; Rusdianasari
International Journal of Research in Vocational Studies (IJRVOCAS) Vol. 3 No. 3 (2023): IJRVOCAS - December
Publisher : Yayasan Ghalih Pelopor Pendidikan (Ghalih Foundation)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/ijrvocas.v3i3.220

Abstract

Molecularly Imprinted Polymer (MIP) is a synthetic polymer with cavities that are specific for target molecules. Cavities are obtained as a result of template removal, where the function of these cavities is to recognize molecules with the same size, structure and physicochemical properties as them. The polymer produced from the MIP technique is applied to the surface of the sensor material as an endosulfan detection and analyzing instrument. The advantage of MIP is that it is a sensor system that is able to provide analysis results for contamination quickly, easily and in low concentrations (ppm). The aim of this research is to make MIP endosulfan as a contamination sensor and potentiometrically test its performance. The research results showed that the optimum conditions for making Molecularly Imprinted Polymer (MIP) endosulfan were obtained with a composition of 6.02 mL of chloroform; endosulfan 0.025 g; 0.9 mL methacrylic acid (MAA); 1.57 mL ethylene glycol methacrylic acid (EGMA); 0.07 g benzoyl peroxide (BPO) with a heating time of 150 minutes at a temperature of 70 oC. The sensor performance test was carried out potentiometrically and it was found that the endosulfan MIP sensor had sensitivity and stability in the concentration range of 0.01-1.0x10-6 ppm with a detection limit of 0.01x10-6 ppm and a service life of 90 days.
PELATIHAN PEMBUATAN PEMPEK BAGI DWP PUSPANITA POLITEKNIK KINABALU MALAYSIA SEBAGAI UPAYA MEMPERKENALKAN MAKANAN KHAS PALEMBANG SEBAGAI KEARIFAN LOKAL Zurohaina, Zurohaina; Rusnadi, Irawan; Adi Syakdani; Tahdid; Hilwatullisan; Ibnu Hajar
Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS Vol. 2 No. 4 (2024): Agustus
Publisher : CV. Alina

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59407/jpki2.v2i4.1158

Abstract

Kuliner merupakan salah satu elemen penting yang memberi pengalaman wisatawan secara utuh terhadap budaya tuan rumah pada sebuah destinasi. Melalui kuliner dapat mencerminkan budaya sebagai suatu kearifan loka yang dimiliki oleh masyarakat pada suatu daerah wisata sehingga memperkaya pengalaman perjalanan yang didapatkan oleh wisatawan. Pempek merupakan salah satu makanan yang disukai oleh seluruh kalangan, tidak hanya anak-anak, bahkan orang tua hingga manula banyak yang menyukai pempek. Rasanya yang gurih dan enak khas ikan membuat banyak orang menyukainya. Darma Wanita Persatuan (DWP) merupakan organisasi masyarakat perempuan yang besar di Indonesia, potensi DWP mulai dari tingkat pusat, provinsi, kabupaten/kota sampai kecamatan dan kelurahan menjadi kekuatan yang patut diperhitungkan untuk memberikan kontribusi yang patut diperhitungkan dan memberikan kontribusi penuh dalam menyukseskan program nasional. Keterampilan peserta dalam membuat pempek menjadi meningkat. Kegiatan ini memberikan informasi dan manfaat kepada Puspanita Politeknik Kinabalu Malaysia selaku mitra dan sekaligus memperat jalinan komunikasi dan silahturahmi dengan DWP Politeknik Negeri Sriwijaya Palembang. Dalam mencapai visi dan misi organisasi DWP maka diperlukan kerjasama dengan organisasi lain dari berbagai pihak, selain untuk mendukung program DWP, dengan kerjasama diharapkan dapat saling bertukar informasi. Salah satunya Dharma Wanita Persatuan Polsri ikut mendukung program kerjasama polsri dan Politeknik Malaysia melalui pertukaran budaya melalui masakan tradisional khas Palembang yaitu pempek atau empek – empek  
Pengaruh Komposisi Biji Jarak, Cangkang Biji Karet Dan Jumlah Katalis Zeolit Terhadap Hasil Syngas Pirolisis Chantika, Nyimas Chyntya; Hafiza, Natasya; Rusnadi, Irawan; Syakdani, Adi; Hilwatullisan, Hilwatullisan
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.v9i2.16623

Abstract

Kebutuhan energi di Indonesia terus meningkat seiring dengan perkembangan populasi dan industrialisasi. Sebagai negara yang kaya akan sumber daya biomassa, Indonesia memiliki potensi besar untuk mengembangkan energi alternatif yang terbarukan. Biomassa, seperti biji jarak dan cangkang biji karet, memiliki kandungan karbon dan hidrogen yang tinggi, sehingga dapat dimanfaatkan sebagai bahan baku energi. Kandungan utama cangkang biji karet meliputi 38,11% selulosa, 18,74% lignin, dan 26,09% hemiselulosa, sementara biji jarak memiliki kadar minyak sekitar 30-40%. Salah satu metode pengolahan biomassa yang efektif adalah pirolisis, yang menghasilkan produk berupa bio-char, bio-oil, dan syngas. Penelitian ini bertujuan untuk mengetahui pengaruh variasi jumlah katalis zeolit alam dan perbandingan komposisi bahan baku terhadap produk pirolisis, khususnya dalam meningkatkan yield dan kualitas syngas.Penelitian dilakukan dengan memvariasikan jumlah katalis zeolit alam (3% dan 5%) dan komposisi bahan baku (100:0, 75:25, 50:50, 25:75, 0:100) pada suhu 350°C. Analisis produk syngas dilakukan untuk mengidentifikasi komponen senyawa seperti CH₄, H₂S, CO, dan CO₂.Hasil penelitian menunjukkan bahwa variasi jumlah katalis berpengaruh signifikan terhadap produk syngas. Penggunaan katalis zeolit alam sebanyak 5% memberikan hasil yang paling optimal dalam meningkatkan yield gas dan kualitas produk pirolisis. Komposisi bahan baku juga memengaruhi distribusi senyawa dalam syngas yang dihasilkan. Penelitian ini mengungkap bahwa kombinasi katalis zeolit alam sebanyak 5% dengan variasi komposisi bahan baku tertentu menghasilkan syngas dengan yield dan kualitas terbaik. Hal ini menunjukkan potensi biomassa seperti cangkang biji karet dan biji jarak sebagai sumber energi alternatif yang efisien dan berkelanjutan.
Co-Authors ., Fadarina Agus Manggala Ahmad Taqwa Alnafrah, Fenty Alpitansyah, Rachmad Bayu Anerasari Meidinariasty Anisya, Jihan Triani Arizal Aswan Chantika, Nyimas Chyntya Daffa Alidina Diah Iswandari Dwi Okta Larassakti Ericx Arga Febby Fitria Sari Febby Fitria Sari Fithra Malvarinda Fitria Nur Anissa Hafiza, Natasya Hilwatullisan Hilwatullisan, Hilwatullisan Ibnu Hajar Ica Monika Idha Silviyati Idham Mahenri Indah Purnamasari Indah Purnamasari Ira Wahyuning Thias Irawan Rusnadi Ismareni, Pepi Jaksen M.A K.A Ridwan Kaslum, Leila Liana Aprilayonda Malinda, Okta Meilianti Miranda Dwi Cendani Muhammad Taufik Muhammad Zaman Muhammad Zaman Nabila Putri Nasyta Nabila Putri Nasyta Nadia Yulianti Nasyta, Nabila Putri Ningsih, Aisyah Suci Oktaviani, Yustika Pratama, M.Bagas R. Rusdianasari Rizka Amalia Rizka Amalia Rizka Amalia Robert Junaidi Rusdianasari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Rusdianasari Sari, Febby Fitria Selastia Yuliati Selastia Yuliati Siti Chodijah Sofiah Sri Murda Niati Supraptiah, Endang Tahdid Veronica, Febri Yohandri Bow Yohandri Bow Zaman, Muhammad Zurohaina Zurohaina Zurohaina, Zurohaina