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All Journal eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) AKM: Aksi Kepada Masyarakat Jurnal ATMOSPHERE
Ma’sum, Zuhdi
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Religion Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Education Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Social Sciences Other

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Perbandingan Kerja Antar Bahan Pengisi pada Menara Cooling Tower dengan Sistem Destilasi Uap Ayyam, Khoirul; Sari, Mila Puspita; Ma’sum, Zuhdi; P., Wahyu Diah
eUREKA : Jurnal Penelitian Mahasiswa Teknik Sipil dan Teknik Kimia Vol 2, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Abstract

ABSTRAK Prinsip kerja Menara Pendingin adalah penukar panas yang berfungsi untuk mengurangi suhu aliran air yang dibawa dari kondensor dengan mengekstraksi panas dari air. Mekanisme penurunan suhu dilakukan dengan kontak langsung dengan udara sehingga sebagian kecil air menguap dan suhu cairan turun. Tujuan penelitian ini adalah untuk mengetahui rasio kerja antara bahan pengisi di Tower Cooling Tower untuk menurunkan suhu air pendingin pada sistem destilasi steam. Pengisi pada pengisi menggunakan pipa PVC dan kaleng bekas. Tes ini dilakukan 5 kali percobaan dan setiap percobaan suhu tercatat sebanyak 5 kali pengukuran. Pengukuran suhu dicatat mulai dari destilat tetes pertama. Ketika proses sirkulasi air di menara Cooling Tower telah berlangsung maka suhu diukur dan dicatat terus menerus setiap 30 menit. Hasilnya menunjukkan bahwa penggunaan filler kaleng lebih efektif pada temperatur 260C hingga 380C. Kata kunci: Menara Pendingin, menara pendingin pengisi, filler PVC, filler kaleng bekas . ABSTRACT Working principle Cooling Tower is a heat exchanger that serves to reduce the temperature of the water flow carried from the condenser by extracting the heat from the water. The temperature drop mechanism is carried out by direct contact with air so that a small portion of the water evaporates and the liquid temperature drops. The purpose of this research is to know the working ratio between filler material in tower Cooling Tower to lower cooling water temperature in steam distillation system. Fillers on filler using PVC pipes and used tins. This test was performed 5 times experiment and each experiment of temperature was recorded as much as 5 times the measurement. Temperature measurements are recorded starting from the first drip destilat. When the process of water circulation in the tower Cooling Tower has lasted then the temperature is measured and recorded continuously every 30 minutes. The results showed that the use of canned filler was more effective at temperatures of 260C up to 380C. Keywords : Cooling Tower, filler cooling tower, filler PVC, filler used tins
VERIFIKASI METODE UJI TOTAL REDUCING SUGAR ICUMSA GS4/3-7 (2011) Lestari, Puji Pangestu; Ma'sum, Zuhdi
eUREKA : Jurnal Penelitian Teknik Sipil dan Teknik Kimia Vol 1, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi Malang

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Abstract

Based on ISO / IEC 17025: 2008 Clause 5.4 states that an accredited laboratory should select the appropriate method, already published in the international standard, regional or national, or reputable technical organizations or from the text or the relevant scientific journals. Laboratories should ensure that can operate standard methods before introducing the tests is to verify the standard method. As an accredited laboratory, the LP-P3GI need to perform verification testing methods to determine whether the total reducing sugar method ICUMSA GS4 / 3-7 (2011) can be applied or applied in LP-P3GI the results are valid and reliable, so that the results of the verification the method can be used as a quality assurance testing. In the verification method, a performance that will be tested is the precision (austerity). Precision is the degree of accuracy the value of some of the results of repeat testing. Precision test can be done by performing intra repeatability and reproducibility. The results of precision test repeatability value CV = 0.75% < 2/3 CV Horwitz = 1.44%, while the intra-precision test reproducibility CV = 1.11%
Perancangan Alat Hydrocracking Untuk Pembuatan Pabrik Base Oil dan Gasoline Dari Limbah Plastik Huda, Istaniyah; Abrina Anggraini , Sinar Perbawani; Ma'sum, Zuhdi
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 6 (2023): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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The need for lubricants in Indonesia for industrial machines, motor vehicles, shipping, heavy equipment, agricultural machines, mining and various other machine lubricants is being used in increasing quantities. Through a pyrolysis process followed by a hydrocracking process, plastic waste can be processed into base oil as the main product and gasoline as a side product. Plastic waste raw materials can be processed using a hydrocracking reactor to produce products in the form of Synthetic Base Oil and gasoline with a conversion of up to 90%, so it is necessary to design a factory for the production of base oil with a capacity of 35,000 tons/year and gasoline with a capacity of 27,000 tons/year using Hydrocracking Reactor. The aim of this research is to determine the design dimensions of a Hydrocracking Reactor with a capacity of 194,444.44 kg/day for making base oil and gasoline from plastic waste (PE). From the mass and heat balance calculations, the equipment specifications are obtained in the form of a Hydrocraking Reactor with a single stage type, a mass flow rate of 54,665.36 kg/hour, a tank diameter of 27.5 ft and a height of 30 ft made from SA-240 Grade A stainless steel which is capable of processing feed. enters from the pyrolysis reactor with batch operating conditions (every 1.5 hours). The head thickness is 0.4 in, the shell thickness is 0.35 in, and the setting area is 510.25 ft2.
Pembuatan Asam Asetilsalisilat dari Asam Salisilat dan Asetat anhidrat Menggunakan Proses Sintesis Kalsium Oksida Dengan Reaktor Sebagai Alat Utama Simbolon, Devi Veronika; Yuniningsih, Susy; Ma'sum, Zuhdi
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 6 (2023): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Acetylsalicylic acid is a corrosive that relieves pain and lessens discomfort. Sometimes people refer to acetylsalicylic acid as a headache medication. In addition to calcium oxide acting as a supporting specialist and corrosive killing specialist, the dynamic element of acetylsalicylic corrosive is called acetylsalicylic corrosive, which is an engineered subordinate of the compound salicin. It responds with anhydrous acidic corrosive and salicylic corrosive in a stoichiometric proportion. When calcium oxide (CaO) is used, the yield of acetylsalicylic acid is nearly 100% (the maximum amount of free salicylic acid is 2%), and calcium acetic acid is produced. It is a one-pot, exothermic, rapid, and contamination-free reaction. Acetylsalicylic corrosive is produced by mixing acidic anhydrous and salicylic corrosive with calcium oxide. The Short Cylinder That Rises 98% of the chemicals used in the filtering process are acetylsalicylic acids in the evaporator. The main device used is the reactor. The reactor can think acetylsalicylic corrosive while operating at 70°C and 1 atm. The reactor's memorised limit is 331.3031 kg/hour. Financial evaluation findings ROIbt (return on venture) = 48%, ROIat (return on investment) = 43%, Pay Out Season = 1.78 years, BEP (return on original investment) = 31.93%, SDP (shut down point) = 14.74%, and IRR (internal rate of return) = 20.93%. Abstrak Asam asetilsalisilat bersifat asam yang mengurangi rasa sakit dan mengurangi ketidaknyamanan. Selain kalsium oksida yang berperan sebagai zat pendukung dan zat pembunuh asam, unsur dinamis asam asetilsalisilat disebut asam asetilsalisilat, yang merupakan turunan rekayasa dari senyawa salisin, merespons dengan asam asam anhidrat dan asam salisilat dalam proporsi stoikiometri. Ketika kalsium oksida (CaO) digunakan, hasil asam asetilsalisilat hampir 100% (jumlah maksimum asam salisilat bebas adalah 2%), dan kalsium asam asetat dihasilkan. Ini adalah reaksi satu pot, eksotermik, cepat, dan bebas kontaminasi. Asam asetilsalisilat diproduksi dengan mencampurkan asam anhidrat dan asam salisilat dengan kalsium oksida. Silinder Pendek Yang Naik 98% bahan kimia yang digunakan dalam proses penyaringan adalah asam asetilsalisilat di evaporator. Alat utama yang digunakan adalah reaktor. Reaktor dapat berpikir asetilsalisilat asam saat beroperasi pada 70°C dan 1 atm. Batas hafalan reaktor adalah 331,3031 kg/jam. Temuan evaluasi keuangan ROIbt (return on venture) = 48%, ROIat (return on investment) = 43%, Pay Out Season = 1,78 tahun, BEP (return on original investment) = 31,93%, SDP (shut down point) = 14,74% , dan IRR (tingkat pengembalian internal) = 20,93%.
Rancang Alat Reaktor Esterifikasi pada Pembuatan Etil Asetat dari Ethanol dan Asam Asetat dengan Proses Esterifikasi Naes, Ivoni Sallyra; Ma'sum, Zuhdi; Fitri, Ayu Chandra Kartika
Prosiding SENTIKUIN (Seminar Nasional Teknologi Industri, Lingkungan dan Infrastruktur) Vol 6 (2023): PROSIDING SENTIKUIN
Publisher : Fakultas Teknik Universitas Tribhuwana Tunggadewi

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Ethyl acetate is a semi-polar aromatic molecule with the chemical formula CH3COOCH2CH3, which can attract both polar and non-polar analytes. Using an esterification reactor as the leading equipment, this factory plans to produce 7,000 tons of ethyl acetate every year. Alcohols and carboxylic acids combine to convert free fatty acids from triglycerides into methyl esters, known as esterification. In the esterification reactor, sulfuric acid is a reaction catalyst between acetic acid and ethanol. The esterification reactor consists of an upright stirring vessel with two funnel-shaped lids, one at the bottom and one at the top. Esterification reactors can be made using SA-240 class construction materials. The steel plate is capable of withstanding temperatures as high as 750°C. To process 1915.4132 kg of incoming material per hour, a reactor capacity of 4.8467 ft is used. This reactor has a diameter of 4,9967 feet and a height of 69,665 feet. Five hundred twenty-four feet high and 0.1875 feet thick. With a diameter of 23.850 inches, a head height of 0.9855 feet, and a thickness of 0.25 inches, the number of stirrers is one. The calculation results show that ethyl acetate, with a purity of 99.8%, is a by-product of the esterification process. Abstrak Etil asetat adalah molekul aromatik semi-polar dengan rumus kimia CH3COOCH2CH3, yang dapat menarik analit polar dan non-polar. Dengan menggunakan reaktor esterifikasi sebagai peralatan utama, pabrik ini direncanakan mampu memproduksi 7.000 ton etil asetat setiap tahunnya. Alkohol dan asam karboksilat bergabung untuk mengubah asam lemak bebas dari trigliserida menjadi metil ester, suatu proses yang dikenal sebagai esterifikasi. Dalam reaktor esterifikasi, asam sulfat berfungsi sebagai katalisator reaksi antara asam asetat dan etanol. Reaktor esterifikasi terdiri dari bejana pengaduk tegak dengan dua tutup berbentuk corong, satu di bagian bawah dan satu lagi di atas. Reaktor esterifikasi dapat dibuat dengan menggunakan bahan konstruksi kelas SA-240. Pelat baja mampu menahan suhu setinggi 750°C. Untuk memproses 1915.4132 kg material yang masuk per jam, digunakan kapasitas reaktor sebesar 4.8467 kaki. Reaktor ini memiliki diameter 4.9967 kaki dan tinggi 69.665 kaki. Tinggi 524 kaki dan tebal 0,1875 kaki. Dengan diameter 23,850 inci, tinggi kepala 0,9855 kaki, dan ketebalan 0,25 inci, jumlah pengaduk satu. Hasil perhitungan menunjukkan bahwa etil asetat, dengan kemurnian 99,8%, merupakan produk sampingan dari proses esterifikasi. Kata kunci: asam asetat; esterifikasi; etil asetat; etanol; reaktor esterifikasi
Optimalisasi Strategi Pemasaran Minyak Atsiri Sereh Merah KTH Oro-Oro Ombo Batu untuk Meningkatkan Daya Saing Iriani, Nur Ida; Ma'sum, Zuhdi; Yoga, Tirta; Pudjiastuti, Agnes Quartina; Fransiska, Apria; Ceme, Grogorius
AKM Vol 5 No 2 (2025): AKM : Aksi Kepada Masyarakat Jurnal Pengabdian Kepada Masyarakat - Januari 2025
Publisher : Sekolah Tinggi Ekonomi dan Bisnis Syariah (STEBIS) Indo Global Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36908/akm.v5i2.1293

Abstract

Pengabdian kepada masyarakat ini dilakukan di AMKE (Area Model Konservasi dan Edukasi) Desa Oro-Oro Ombo, Batu dengan tujuan untuk meningkatkan daya saing produk minyak atsiri sereh merah melalui optimalisasi strategi pemasaran. Permasalahan ditemui kurangnya pengetahuan pengelola AMKE dalam memanfaatkan media pemasaran, serta keterbatasan dalam desain kemasan yang menarik. Pendekatan yang digunakan dalam program ini adalah pelatihan intensif pemasaran secara offline dan online, serta optimalisasi media sosial dan platform e-commerce. Hasil pengabdian menunjukkan peningkatan signifikan dalam penjualan, dengan pendapatan naik dari Rp. 1.125.000 sebelum kegiatan pengabdian pada bulan Juli 2024 menjadi Rp. 2.500.000 pada bulan Agustus 2024 setelah strategi pemasaran diterapkan. Perbaikan kemasan, pemanfaatan media digital, dan strategi pemasaran yang lebih baik berhasil meningkatkan brand awareness serta membangun citra produk yang lebih profesional di konsumen.
ANALYSIS OF PROCESSING PALM OIL FRUIT INTO CRUDE PALM OIL AT PT. SEDJAHTERA INDO AGRO BUKIT AJONG FACTORY, SANGGAU DISTRICT Ma'sum, Zuhdi; Lorenza, Karolina Maret; Ratna, Kornelia
jurnal ATMOSPHERE Vol. 4 No. 1 (2023): ATMOSPHERE
Publisher : Teknik Kimia ITN Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36040/atmosphere.v4i1.6738

Abstract

An analysis of the production process needs to be done at PT. Sedjahtera Indo Agro PKS Bukit Ajong Factory. The method was determining the average, median, standard deviation, and variance free fatty acid content of production. Free fatty acid levels was titrated by 0.1N NaOH and Phenolphthalein as an indicator. The results of the analysis of 461 samples found that the average percent free fatty acid content was 3.76% with a median of 3.95. The variance value is 0.05 with a standard deviation of 0.17. The factors causing unstable levels of free fatty acids is due to non-continuous factory operations and frequent stoppages of operations. If that happens for a long time, the free fatty acid levels will increase as a result of the increase in temperature in the tank. However, the CPO produced still meets the SNI where the average FFA content per week is 2-5%.
Co-Authors Abrina Anggraini , Sinar Perbawani Agnes Quartina Pudjiastuti Ayu Chandra Kartika Fitri Ayyam, Khoirul Ceme, Grogorius Fransiska, Apria Huda, Istaniyah Lestari, Puji Pangestu Lorenza, Karolina Maret Mila Puspita Sari, Mila Puspita Naes, Ivoni Sallyra Nur Ida Iriani P., Wahyu Diah Ratna, Kornelia Simbolon, Devi Veronika Susy Yuniningsih Tirta Yoga