Journal of Nahdlatul Ulama Sidoarjo University
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PILOT PLANT PROSES PRODUKSI BIODIESEL MENGGUNAKAN KATALIS BASA HOMOGEN
No full textMethyl ester is an alkyl ester compound which is produced through an transesterification process between triglycerides and methanol with the aid of alkaline catalysts into alkyl esters and glycerol. Methyl ester is produced through a transesterification reaction. The method used in the production of methyl ester was Pilot Plant with batch process. Base catalyst variations were carried out at 0,1%w/w;0,3%w/w;0,5%w/w;0,7%w/w; dan 0,9%w/w. The productions of methyl ester consisted of pre-treatment, transesterification reaction, and post-treatment. Quality test of methyl ester consists of density and kinematic viscosity. Based on the result of the research, the overall quality of methyl ester were appropriate according to the Indonesian National Standard on Biodiesel. The highest density value was 889,6kg/m3 at 0,5%w/w base catalyst concentration and the lowest value was 862,7kg/m3 at 0,3%w/w base catalyst concentration. The highest value of kinematic viscosity contained in base catalyst variation of 0.1%w/w was at 5.80cSt and the lowest value of 0.7%w/w was at 3,76cSt
PENETAPAN POTENSI UNGGULAN KECAMATAN DI KABUPATEN BANDUNG
No full textEconomic development is a continuous effort to improve people’s welfare. The main problem in regional development lies in the development of policies that are based on the specific characteristics of the area concerned (endogenous development) by using the potential of human resource, institutional, and natural resource locally (regions). Potential leading sectors in Bandung Regency are agriculture, plantation, livestock, fishery, industry, and tourism. Each sub-district in Bandung Regency region has potential leading sectors that need to be set as leading sectors to be further developed. The purpose of this research was to identify the variables that influence the determination of superior potential of sub-districts in Bandung Regency. The method used to create a model in determining the superior potential of sub-districts in Bandung Regency was the Analytical Hierarchy Process (AHP) method. In this research, 4 sub-districts were taken as an example of the model that were Majalaya, Banjaran, Soreang, and Cimenyan District. Leading sectors assessment of the four districts had the following priority sequence: Majalaya District is for the Industrial sector with a priority weight of 0.326, Agriculture 0.254, Tourism 0.163, Plantation 0.149, and Livestock 0.107; Banjaran District, had the Plantation sector with priority weights 0.294, Industry 0.207, Tourism 0.205, Agriculture 0.165, and Livestock 0.128; Soreang District, had the Agriculture sector with priority weights 0.278, Industry 0.222, Plantation 0.208, Tourism 0.199, and Livestock 0.093; Cimenyan District, had the Tourism sector with priority weights 0.373, Agriculture 0.223, Industry 0.195, Plantation 0.129, and Livestock 0.081. The sub-criteria/factors that were priorities in determining the superio sectors of the district, the top 5 of the 12 sub-criterias/factors were capital, technology, business management, market availability, and prices
REPRESENTASI DATA HASIL ANALISA SPASIAL DAERAH RAWAN PENYAKIT CAMPAK MENGGUNAKAN METODE WEIGHT PRODUCT MODEL
No full textMeasles is a part of many diseases that occur in the tropics as happened in East Java. Measles disease data recorded in the Health Profile Book contains information on tabular data on the number of measles cases, the fatality rate of measles cases, and data that contain infant measles immunization. The purpose of the discussion of this paper is to represent spatial and attribute data resulting from spatial data processing in the spatial analysis process by Weight Product Model (WPM) methods and in the Multiple Attribute Decision Making (MADM). Data representation to determine areas prone to tropical diseases based on infant immunization status, nutritional status, epidemics, and PD3I. The results of the spatial data modeling will be represented into spatial data and attribute data obtained from the preferential value of Vi with the category of classification of tropical disease-prone areas with good, average, fair, and poor immunization status
KARAKTERISTIK SILIKA POWDER BERBASIS BATUAN TRAS DENGAN PROSES EKSTRAKSI DAN PRESIPITASI
No full textIndonesia is a country rich in natural resources such as trass rocks where tras rock deposits in the Rembang area are 28.5 million m3 with a total area of 260 ha. Tras rock is only used for cement and brick raw materials where the economic value is low. Based on laboratory analysis, tras rock contained of SiO2 = 40-56%. Because of the high silica content, it was very possible to make a silica product that was widely used for industrial needs. The purpose of the research was to obtain optimum conditions in the extraction and precipitation process and also drying to obtain synthetic powder silica that met industry standards. The process carried out was refinement of 100 mesh size trass rock followed by an extraction process with variations in the concentration of NaOH (1; 1.5; 2; 2.5; 3M) and extraction time (60, 90,120, 150, and 180 minutes) in the reactor at a temperature 95°C then the solution was filtered and the precipitation process was carried out with 37% HCl through the neutral of pH, the resulting sludge was dried and the content and weight were calculated and the marfology was tested by SEM. The optimum conditions for of silica extraction proces of tras rock was the addition of 3M NaOH with a time of 150 minutes to produce 15.26 grams of silica
DINAMIKA DAN PENGENDALIAN SISTEM QUADRUPLE TANK MENGGUNAKAN CONTROLLER PI-PID DENGAN METODE DETUNING
No full textIn general, industrial processes have characteristics as multivariable processes where the variables interact with one another which causes poor performance. Quadruple tank is a Multi Input Multi Output (MIMO) system that can be used to analyze dynamics and process control schemes with strong interactions. The design is simple but can represent complex systems in the industry so that a reliable controller can be tested using this system. Tuning controller parameters using Ziegler-Nichols only work well for single loops, therefore detuning controllers are needed using the BLT and Mc Avoy methods. The research method is to make mathematical models and determine the specifications of quadruple tanks. Next make a process simulation and identify the transfer function with the step test method. Interaction analysis using the Relative Gain Array (RGA) method. Tuning controller parameters using the Ziegler-Nichols method is then detuned using the BLT and Mc Avoy methods. Simulation of quadruple tank systems both open loop and closed loop can run well and can be used to test the reliability of PI-PID controllers with BLT and Mc Avoy detuning. Based on IAE values, controller with Mc Avoy detuning are superior compared to controllers with BLT detuning, both at level and temperature controllers
PEMANFAATAN LIMBAH BATANG UBI KAYU DAN PLASTIK SEBAGAI BAHAN BAKU PEMBUATAN PAPAN PARTIKEL
No full textParticle board consists of sheets of material made from wood chips or materials containing lignocellulose such as flakes and strands to be joined by using a binder and by providing various aids such as heat and press. The purpose of this research was to study the physical value (moisture content, thickness development, and density) and mechanical properties (elasticity and tensile strength) and its conformity to SNI. Particle board making in this study was a mixture of wood powder with plastic Low Density Polyethylene (LDPE) with a composition according to variable pressure pressed with 25 kg/cm2 with long pressing at the required temperature for an hour and added with 30 minutes of packing. The variables used were temperature and material composition. The making of particle board from cassava powder and plastic LDPE based on air content test, thickness development, and straight tensile strength were appropriate to SNI. The best results obtained in this study was the composition comparison of plastic LDPE: wood powder (80; 20) with a temperature of 160℃ with a moisture content of 1,2027%, thickness development of 9.217 %, density of 0,831 g/cm3, MOE of 21304,600 kgf/cm2, and perpendicular tensile strength of 31,094 kgf/cm2. This particle board passed all tests and have the average value and better characteristics compared to others
Pemanfaatan Tempurung Kelapa sebagai Katalis pada Proses Konversi Minyak Curah Menjadi Biodiesel
No full textVegetable oil is one of the alternative sources of raw material for fuel oil to produce biodiesel. The conversion reaction process requires the help of a catalyst to break down triglycerides into methyl esters. Therefore, this study aims to determine the performance of catalysts made from coconut shells to convert bulk oil into biodiesel. The catalyst performance is focused on biodiesel\u27s yield parameters through the influence factor of catalyst weight, molar ratio, and %FAME. This research was conducted in three stages, namely (1) catalyst preparation, (2) application of catalyst performance through the conversion process of bulk oil into biodiesel, (3) washing of biodiesel. The first stage was catalyst preparation carried out by utilizing a coconut shell, which was first made into charcoal, then activated using H3PO4 then sulfonated with H2SO4. The second stage was the conversion process of bulk oil into biodiesel using coconut shell catalysts through a transesterification process using variations in the catalyst\u27s weight to bulk oil (0.5; 1; 1.5; 2; and 2.5% wt/wt) and bulk oil molar:methanol ratio (1: 3; 1: 6; and 1: 9). The third stage was the process of washing biodiesel using HCl. Based on this study\u27s results, the best catalyst weight was 2% wt/wt with a molar ratio of 1: 9 resulting in the highest yield of 89% and the FAME of 80.36%
PELATIHAN IPTEK DAN PENDAMPINGAN “BOCAH GIMMICK” PAUD/TA CUT NYAK DIEN KELURAHAN BUNULREJO KECAMATAN BLIMBING KOTA MALANG
No full textKemampuan membaca, komunikasi verbal, dan mengenal objek merupakan kegiatan belajar bagi anak sejak dini. Hal ini menjadikan pentingnya proses pembelajaran anak saat menginjak usia sekolah lanjut. PAUD/TA Cut Nyak Dien merupakan salah satu satuan Pendidikan Usia Dini, kegiatan pembelajarannya sudah baik namun guru masih kesulitan pada saat pembelajaran kemampuan tersebut dan masih lemahnya kemampuan membaca pada beberapa siswa. Disamping itu, guru pengajar juga masih belum memanfaatkan IPTEK dalam pembelalajarannya, padahal anak-anak jaman sekarang sudah banyak yang mengenal gadget untuk bermain atau belajar (game edukatif) dengan memanfaatkan gadget berupa handphone atau laptop orang tuanya. Dengan demikian perlu dipikirkan bagaimana memberikan kegiatan belajar yang dirasa lebih menarik, menyenangkan, dan interaktif menggunakan IPTEK. Kegiatan yang dilakukan ini bertujuan untuk: 1) Meningkatkan pengetahuan guru tentang penggunaan media pembelajaran dengan bantuan Iptek; 2) Memberikan alat peraga pendukung proses belajar memanfaatkan teknologi elektronik berjudul Boleh Membaca Hebat pakai Game Interactive (BOCAH GIMMICK); 3) Pendampingan aplikasi pembelajaran dan alat pendukung pembelajaran. Penelitian ini bertujuan untuk mempermudah proses pembelajaran yang memanfaatkan IPTEK sebagai sarana belajar. Target luaran berupa aplikasi alat belajar yang menarik dan interaktif berupa alat pendukung cerdas cermat yang memanfaatkan teknologi elektronik
IMPLEMENTASI SOFTWARE ACCOUNTING DALAM MEWUJUDKAN PERTANGGUNGJAWABAN KEUANGAN DAN AKUNTABILITAS PUBLIK BAGI LAZISMU
No full textLazisMu adalah salah satu organisasi nirlaba yang berkegiatan dalam pengumpulan zakat, infak, dan sedekah dari masyarakat. Sebagai salah satu bentuk pertanggungjawabannya adalah dengan memberikan laporan pertanggungjawaban, namun dalam hal pembuatan laporan pertanggungjawaban selama ini adalah tidak adanya tenaga terampil yang mampu menyusun laporan pertanggungjawaban dan keuangan yang sesuai dengan pedoman yang ada. Sebagai bentuk solusi untuk mengatasi permasalahan yang dihadapi LazisMu, maka perlu diadakan kegiatan pelatihan akuntansi yang berbasis teknologi. Pengenalan akuntansi umum dan khusus, yaitu PSAK 109 serta berlanjut dengan mengadakan pelatihan akuntansi dengan basis software akuntansi. Dalam pelatihan ini dilakukan dengan metode kelas, yang akan diberikan materi tentang akuntansi dan pemahaman akuntansi berbasis teknologi. Selanjutnya akan dilakukan review atas laporan keuangan yang selama ini dibuat dan dibuatkan solusi pemecahannya dalam pelatihan. Setelah dilakukan review, maka dilanjutkan dengan pelatihan secara data untuk pembuatan laporan keuangan berbasis teknologi, yaitu dengan mengimplementasikan software accounting yang telah dibuat. Kegiatan ini tidak berhenti setelah diadakan pelatihan, namun dilakukan monitoring dan pendampingan dalam menyusun laporan keuangan dengan implementasi software accounting. Hasil yang dicapai dalam Program Kemitraan Masyarakat ini adalah tercapainya peningkatan kapasitas SDM di LazisMu dalam mengelola keuangan dan pertanggungjawabannya
PELATIHAN TEKNOLOGI PENGEMASAN TABLET EFFERVESCENT KELOR PADA CV NURUL JANNAH SUMENEP
No full textCV Nurul Jannah merupakan UMKM yang mengolah kelor menjadi beberapa produk olahan antara lain kerupuk, mie, stik, teh tubruk. Saat ini, CV Nurul Jannah membuat produk inovasi minuman kelor dalam bentuk tablet effervescent. Tablet effervescent termasuk dalam produk yang mudah rusak bila kontak dengan udara dan rusak pada kelembaban tertentu. Karakteristik tablet effervescent yang demikian menjadi kendala bagi CV Nurul Jannah untuk memulai usaha produk inovasi tablet effervescent kelor. Mengingat pentingnya produk inovasi pada CV Nurul Jannah serta besarnya pengaruh kemasan terhadap suatu produk yang akan dipasarkan, maka dilakukan pelatihan teknologi pengemasan tablet effervescent kelor. Kegiatan pelatihan pengemasan yang dilaksanakan memberikan pemahaman tentang teknologi pengemasan sehingga CV Nurul Jannah memiliki bentuk kemasan dan label kemasan pada produk inovasi yang akan menjadi produk baru berbasis daun kelor