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All Journal Simetris JITEK (Jurnal Ilmiah Teknosains) Jurnal Teknik Mesin
Suluh Jatmiko
Sekolah Tinggi Teknologi Ronggolawe
Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Veterinary

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Journal : Simetris

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INSTALASI UNIT BIOGAS DARI LIMBAH KOTORAN SAPI DENGAN METODE ANAEROB MENGGUNAKAN REAKTOR VOLUME 3300 L puput eka suryani; suluh jatmiko; arya dwi candra
SIMETRIS Vol 12 No 2 (2018): SIMETRIS
Publisher : Sekolah Tinggi Teknologi Ronggolawe Cepu

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Abstract

Medalem is one of the villages located in Kradenan District, Blora Regency,Central Java. Most of the residents of Kradenan have a livelihood as Farmers, includingresidents of Medalem Village. In addition to farming, residents also conduct cattle and goatbreeding activities, this is due to very supportive natural conditions. Medalem Village,especially Sunggun Hamlet, gets a grant in the form of cattle from the local government tobe managed by each farmer group in Sunggun Hamlet. Until now the number of cowsmanaged by farmer groups has reached 28. Several cows maintained in one places or inresidents in their own homes. There are some disadvantage caused by the amount of cowdung produced by these cows, ranging from unpleasant odors, trees and plants that diefrom piles of cow dung, to the dwindling landfill of cow dung. This research aims toprovide appropriate solutions to overcome these problems. The activities carried out are bybuilding the installation of biogas units in Sunggun Hamlet. This biogas processingtechnique uses a cylinder reactor (floating drum). Some of the results of the activities thathave been carried out are more integrated processing of cow manure, no land wasted toaccumulate cow dung, improved soil and air health quality, availability of new LPGreplacement fuel, availability of organic fertilizer that can be directly applied to crops,availability of waste solid that can be used as a planting medium.
Studi Numerik Gerakan Mainan Mekanik Monobike Eva Hertnacahyani Herraprastanti; Hendri Suryanto .; Suluh Jatmiko .
SIMETRIS Vol 13 No 2 (2019): SIMETRIS
Publisher : Sekolah Tinggi Teknologi Ronggolawe Cepu

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In today's development where there are several applications to design a product, where in the design of a product, not only can physically design the components, but also can design the desired movements. In order to produce product movements as desired, when designing it must first choose the right mechanism and perform synthesis and analysis of kinematics. To make a toy move, the components which make up the toy are needed by following a certain mechanism. In this study the mechanical toy that will be analyzed for its movements is Monobike. In the monobike there is a Slider Crank mechanism that results from the paddling of the foot which rotates the pedal and moves up and down. The up and down pedal will turn the second wheel and cause the body of the doll holding the fan to move up and down. The research objective is to numerically analyze component movements in Monobike mechanical toys which include linear displacement, velocity and acceleration analysis. In this research, a monobike mechanical toy that mimics human activities in pedaling a bicycle is determined. The methodology in this research is as follows: a) make a kinematic diagram, b) determine the position vector of each link, c) derive the equation, d) make the GNU Octave code. Based on the results of the study concluded that a numerical study with the GNU Octave can be done to analyze the kinematic motion of a machine. Linear displacement on link 3 has the furthest displacement of 18.38 mm, and one cycle of movement requires 120 seconds. The maximum linear speed of the Monobike mechanical toy is 36.2 mm / sec. While the maximum linear acceleration of a monobike mechanical toy is 172.3 mm / sec. GNU Octave is a freeware application that is no less reliable than the Matlab application in analyzing the kinematics of a machine.
Co-Authors Arya Dwi Candra Eva Hertnacahyani Herraprastansi Hariyanto Hariyanto puput eka suryani Suryanto, Hendri