Journal Universitas Tridinanti Palembang
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DISTILASI AIR LAUT TENAGA SURYA DENGAN KONSENTRATOR LENSA FRESNEL
Get PDFWater supply is a basic need for life. Water management that requires a large amount of cost and energy is needed alternative solutions to produce a cheap process. Research on the distillation process was carried out to find solutions to these problems. The research was carried out by a experiment method to produce a distillation process for water purification.The experiment use an effective fresnel lens of 0.785 m2 and the receiver volume was 200 mL The results of the study explained that using a fresnel lens concentrator was able to generate steam. The steam can be condensed to produce fresh water. Data from calculation obtained average direct solar radiation is 531.98 Watts/m2 and the power received by the receiver is 346.61 Watt. The average normal solar radiation in tests is 515,7 W/m. The average temperature of the focus point on the cone receiver is 520,4OC.The wet steam generation process is obtained when the water temperature in the receiver shows 95OC. Experiments of distillation for 200mL sea water needed 10 minutes to reach 4 bar of pressure. Steam is flowed into the condenser so that distilled water is obtained 150 ml. Keywords: fresnel lens, solar destilation, drinking wate
RANCANG BANGUN MESIN PENUMBUK SAGU UBI KAYU UNTUK PROSES PEMBUATAN BERAS ARUK DENGAN MOTOR LISTRIK 0,5 HP
Get PDFThe pulverization of cassava sago is one of the main of traditional aruk rice.To get a chewy and very chewy level of sago requiresto pulverize ± 50 minutesfor 1 kg cassava sago. To speed up the pulverization process, it was designed a sagopulverization machine with a 0.5 HP electric motor power. The design method uses the French method, with the pulley and v-belt as atransmission system to actuate the eccentric shaft so that the pounder will move up and down. The fixed variable is time and it will set for 10 minutes and 12 minutes with result analysis using visualization method to 10 respondents. The force that generated by eccentric shaft and transmitted to the pounder of 1.010 N produce the chewy level of sago at 10 minutes to pulverization process with capacity 6 kg / hour and the very chewy level at time 12 minutes with capacity 5 kg / hour.This machine will reduce time of pulverization process until 76-80% compared to the manual process. Keywords: Aruk rice, grinding machines, electric motors, elasticit
ANALISIS PERHITUNGAN HARGA POKOK PRODUKSI BERDASARKAN SISTEM ACTIVITY BASED COSTING PADA PT.FASTFOOD INDONESIA CABANG KFC PLAJU PALEMBANG
Get PDFThe accuracy of determination of cost of goods sold is influenced by the accuracy in the accumulation and calculation of production costs which include the cost of raw materials, direct labor costs and other factory costs (factory overhead costs).Cost of production or product cost is an important element to assess the success (performance) of trading companies and manufacturers. The cost of production is closely related to the indicators of corporate success, such as: gross sales, net income. Depending on the ratio between the selling price and the cost of the product, a change in the cost of the product is relatively small so it has a significant impact on the success indicator. Keywords: Cost of Goods Sold, Performanc
PENGARUH PENAMBAHAN SERAT BUAH PINANG TERHADAP KUAT TEKAN DAN KUAT TARIK BELAH BETON
Get PDFBeton adalah suatu campuran yang terdiri dari pasir, kerikil, batu pecah atau agregat-agregat lain yang dicampur menjadi satu dengan suatu pasta yang terbuat dari semen dan air sehingga membentuk suatu massa mirip batuan. Beton adalah material yang rumit. Beton dapat dibuat dengan mudah bahkan oleh mereka yang tidak punya pengertian sama sekali tentang teknologi beton, Beton mempunyai kuat tekan yang sangat besar, tetapi kuat tarik beton sangat rendah.Salah satu usaha untuk memecahkan masalah tersebut adalah dengan menggunakan serat sebagai bahan pengisi dalam campuran beton. Benda uji untuk pengujian kuat tekan digunakan kubus 15 x 15 x 15 cm dan kuat tarik belah digunakan silinder diameter 15 cm dan tinggi 30 cm. Persentase penambahan sera buah pinang adalah 1 %, 1,5 %, 2 % terhadap berat jenis beton dengan mutu beton K.225 dan dilakukan pengujian kuat tekan dan tarik belah. Dari hasil penelitian yang telah dilakukan didapat hasil uji kuat tekan mengalami peningkatan pada persentase 1 % sebesar 6.50 % dan mengalami penurunan pada persentase 1,5 % dan 2 % sebesar 3.88 % dan 17.80 % dibandingkan beton normal, untuk hasil pengujian kuat tarik belah beton mengalami peningkatan pada persentase 1 %, 1,5 % sebesar 6.50% , 10.4 % dan mengalami penurunan pada persentase 2 % sebesar 7.07 % dibandingkan dengan beton normal.Kata kunci: serat buah pinang, kuat tekan beton dan tarik belah beto
EVALUASI KINERJA FUNGSIONAL - STRUKTURAL DARI CAMPURAN HOTROLLED SHEET - WEARING COURSE (HRS-WC) YANG MENGGUNAKAN ASPAL PEN 60/70 DAN POLIMER ELVALOY
Get PDFCampuran Hot Rolled Sheet (HRS-WC) dianggap mempunyai kelebihan dibandingkan dengan jenis perkerasan lainnya karena HRS-WC mempunyai sifat fleksibilitas dan durabilitas tinggi. Pada penelitian ini digunakan campuran HRS-WC sesuai spesifikasi Kementerian Pekerjaan Umum 2010 memakai aspal Pen 60/70 dan aspal modifikasi polimer Elvaloy yang dihasilkan dari aspal Pen 60/70 yang diblending polimer Elvaloy sebesar 0%, 1,5% dan 2%. Hasil uji Marshall campuran HRS-WC dengan Elvaloy 1,5% menunjukkan nilai Stabilitas Marshall tertinggi sebesar 1.580,3 kg dan hasil uji Wheel Tracking memberikan nilai Stabilitas Dinamis tertinggi sebesar 21.000 lintasan/mm pada temperatur 45°C. Dan hasil kedalaman tekstur menunjukkan nilai tertinggi pada campuran HRS-WC dengan Elvaloy 2% sebesar 0,061 mm pada temperatur 60°C. Secara umum, hasil penelitian menunjukkan bahwa kualitas campuran HRS-WC yang menggunakan aspal modifikasi Elvaloy dapat dijadikan alternatif dalam perbaikan kinerja fungsional dan struktural perkerasan jalan. Hal ini disebabkan karena campuran dengan Elvaloy 2% mempunyai nilai makrotekstur yang baik, sedangkan nilai stabilitas dinamis yang paling baik terdapat pada campuran Elvaloy 1,5%.Kata kunci: Hot Rolled Sheet-Wearing Course (HRS-WC), elvaloy, wheel tracking, tahanan gelincir, kedalaman tekstu
PERANCANGAN DAN PEMBUATAN ALAT PENIRIS KERIPIK UMBI - UMBIAN DENGAN VARIASI DIAMETER PULLY
Get PDFKesejahteraan masyarakat Indonesia dalam bidang industri khususnya industri kecil seperti aneka makanan ringan yang digoreng perlu di tingkatkan sebagai contoh adalah keripik pisang, keripik ubi, keripik kentang dan kerupuk, makanan ringan ini memiliki keterbatasan yaitu umur konsumsi yang terhitung kurang panjang karena adanya minyak yang terkandung di dalamnya. Maka dilakukan perancangan dan pembuatan alat peniris, untuk usaha memperpanjang umur konsumsi. Oleh sebab itu , penulis melakukan pengujian mesin peniris minyak ini dengan variasi pully berdiameter 16 cm, 19 cm dan 21,5 cm dan mendapatakan hasil penirisan yang paling optimal dari mesin yaitu dangan pully yang berdiameter 21,5 cm dengan berat ubi untuk keripik 1000 gram dan lama waktu penirisan 10 menit dan minyak yang tertiriskan sebanyak 110 gram dan berat keripik setelah ditiriskan 775 gram.Kata kunci: peniris, keripik, pull
DESAIN DAN ANALISIS KEKUATAN RANGKA TEMPAT SAMPAH DI BALAI LAPAN GARUT MENGGUNAKAN METODE ELEMEN HINGGA
Get PDFThis study examined the design and analysis of the strength of the trash bin frame using the finite element method. The analysis was carried out using Autodesk Inventor Professional 2017. The frame material used was Aluminum 5052 with ISO 10799-2 (Square) standard with the size of 25 x 25 x 2 mm. Variable load of trash bin was 55 kg, 60 kg, 65 kg, and 70 kg. The simulation results show that a load of a trash bin with the weight of 55 kg, 60 kg, 65 kg, and 70 kg had the safety factor of 2,49, 2,28, 2,11, and 1,96. Keywords: aluminum 5052, finite element analysis, strength analysis, autodesk inventor 2017, trash bin fram
MODIFIKASI DAN PEMBUATAN ALAT PENJERNIH AIR MODERN KONSUMSI RUMAH TANGGA
Get PDFModern Water Purifier uses the main drive, namely a water pump with a power of 15-30 watts, a voltage of 220 volts AC, a frequency of 60 hertz with an absolute pressure from the pump 10-100 psi (Pond Square In). The working principle of this equipment is the water pump as the main water drive or diverter that is connected with filters which then will flow through the hose which then comes out through holes (pores) that are on the sides of the filter. From the water that comes out it will go to the Reverse Osmosis (RO) membrane and then it will flow towards Bio Ceramics which will last through Post Carbon so that the water that comes out after the process will become water that can be consumed by humans. With the price of R ranging from 0 ÷ 1, it can be seen that water that has been processed with a yield of 0.9 can be said to be feasible to drink or contaminant substances in water are perfectly retained by the membrane. Keywords: Membrane, Reverse Osmosis (RO), Bio Ceramics, Post Carbo
ANALISA RANGKA LOAD-FRAME DARI ALAT TRIAXIAL DIGITAL 50 KN
Get PDFAn analysis of the strength of the material on the framework of the digital triaxial apparatus to increase the maximum working capability to 50 kN has been performed. A digital triaxial device is a test machine used to determine the properties of a soil sample. Analysis of the framework of this tool is needed to see the character of the material used so as to obtain maximum performance to support the performance of the digital triaxial device. The frame in question consists of a bottom base, two poles, and a beam rod positioned at the top of the pole. The analysis performed using 3D Solidworks software utilizes structural analysis features. Pressures of 50 kN are given in a vertical direction so as to press the midpoint of the bottom base and the beam rod, both of which are attached to the pole using a nut as anchoring. The analysis result shows that Stress Von Mises maximum vallue that works on parts is 1.664,7 kgf/cm2. Keywords: Triaxial Digital, load- frame, structure analysis, 50 K
PENGARUH KOMPENSASI, MOTIVASI DAN DISIPLIN KERJA TERHADAP KINERJA KARYAWAN UNIVERSITAS TRIDINANTI PALEMBANG
Get PDFThis study aims to determine the effect of Compensation, Motivation and Work Discipline on Employee Performance at the University of Tridinanti Palembang. Both partially and jointly. In this study the total population was 70 people, with details of 35 trial samples and 35 research samples. From the results of the study obtained the variable Compensation regression coefficient (X1) of 0.147, Motivation (X2) 0.135, Work Discipline (X3) 0.155 and also produces a constant value of 38.496 so the Multiple Linear Regression equation is as follows: Y = 38.496 + 0.147 X1 + 0.135 X2 + 0.155 X3, while the correlation coefficient results are 0.6343 which means it has a very strong relationship between the independent variable and the dependent variable, also the determination coefficient (R2) of 0.320 This value can be interpreted that the percentage effect of Compensation, Motivation and Work Discipline on Performance is 32% while the remaining 78% is influenced by other variables not included in this study.Keywords: compensation, motivation, work discipline, and employee performanc