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INDONESIA
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ISSN : 02163233     EISSN : 25802283     DOI : -
Core Subject : Engineering,
Jurnal TRANSMISI dipublikasikan oleh Jurusan Teknik Mesin Universitas Merdeka Malang sebagai media diseminasi hasil penelitian dan karya ilmiah baik penelitian dasar maupun terapan di bidang teknik mesin. Berkala ilmiah ini memuat naskah dengan bidang kompetensi konversi energi, material (metalurgi), produksi dan manufaktur baik merupakan penelitian dasar ataupun rekayasa alat terapan.
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Articles 7 Documents
Search results for , issue "Vol 18, No 2 (2022): September 2022" : 7 Documents clear
Alternative Fuel Analysis of Polyethylene Type Plastic Waste Pyrolysis Results Yeni Ratih Pratiwi; Johan Wayan Dika; Abi Suwito; Muhammad Farid Fajar Sururi
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9233

Abstract

Plastic waste is a major problem faced by Indonesia, especially in big cities which have a high level of activity and density as well as rapid infrastructure development. To overcome this, environmental experts and scientists from various disciplines have conducted various studies and actions. One alternative for handling plastic waste is to carry out a recycling process (recycle) through pyrolysis. This study aims to analyze liquid fuel from the results of pyrolysis of polyethylene plastic waste. This research is an experimental research with a quantitative approach. The data analysis technique used is data analysis using descriptive techniques. The pyrolysis results obtained consisted of Premium Alternative Fuels producing a density of ± 1060 ml, Kerosene Alternative Fuels producing a density of ± 1480 ml and Alternative Diesel Fuels producing a density of ± 1700 ml.
Grain Drying Machine Design of Rotary Dryer 300 Erik Dedy Saputra; Muhammad Ata Nizar Masrukhan Al-Mabruri; Robert Tursina; Bima Laden Bahruroziqien; Yayang Prayoga Susilo; Andre Riyan Pratama; Mohamad Khabibasofi
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9210

Abstract

The existence of climate change and weather is an obstacle for farmers from the planting stage to post-harvest. Especially in the district. Blitar, East Java, especially in terms of grain drying. The design and construction of a rotary batch-type shelled corn drying machine has been carried out. The goal is to make the development of a corn-drying machine using biomass fuel (corn cobs). This research was conducted to make a design for a dryer or machine that will be made, by looking at existing machine references and then looking for a more efficient design and of course, saving in terms of production costs and fuel costs for the engine heating process, this machine is designed to be able to rotate statically to allow drying of materials such as corn, rice, coffee, etc. It can dry evenly and of course quickly. for the design process using the AUTODESK INVENTOR PROFESSIONAL 2019 software. The advantage of this dryer is that it has a capacity of 300 kg, so it can increase the capacity of the corn drying process commonly used by traditional farmers, is more efficient in the use of the land area for drying, less labor is used and time The rainy season is not dependent on sunlight. This machine can dry materials such as rice and other grains for a maximum drying time of 300 kg. For time it can be adjusted to the water content in the rice or other materials.
Strength Analysis of Horizontal Type Wind Turbine Blades Using PVC Pipe Material Radik Kemala Ali; Jumiadi Jumiadi
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9206

Abstract

The wind defines as air moves from one place to another which produces kinetic energy. Wind moves due to pressure differences that affect the temperature in a region on the earth’s surface. The utilization of wind turbines as the renewable energy is not maximal. This research was focused on understanding the strength of wind turbine spoons which using PVC pipe material. The tensile test was conducted on 5 specimens that used 1 type of PVC and different variations in wind speed ranging from 3 m/s -7 m/s and the results showed that specimen 1 with wind speed of 3 m/s was 18.30 kg/mm2, specimen 2 with wind speed of 4 m/s was 19.32 kg/mm2, specimen 3 with wind speed of 5 m/s was 21.28 kg/mm2, specimen 4 with wind speed of 6 m/s was 22.01 kg/mm2, and specimen 5 with wind speed of 7 m/s was 19.32 kg/mm2.
The Effectiveness of Centrifugal Pump Shaft Alignment Process Against Vibration Reduction Mulyadi, Rahmad; Darto, Darto; Iswantoko, Agus
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9209

Abstract

Centrifugal pump is one of the most important components that is widely used by industry and functions to move liquids in the form of water or other liquid. One of the things that often happens on centrifugal pumps is the occurrence of high vibrations and abnormal sounds. High vibration in the pump is something that should be anticipated because it can cause damage to the bearings, seals, and shafts. If the pump continues to operate in this condition, it will also cause damage to other pump components and cause the pump to stop operating. Therefore, the condition of the pump must be monitored regularly to ensure that the pump can operate properly. One of the most frequently used methods to find out where high vibrations come from is to use the aptitude analyst application that will produce a unique vibrational spectrum. Vibration analysis is done by observing the amplitude and frequency of the vibration signal. Vibration spectrum analysis can detect pump damage without having to disassemble the equipment and can provide early warning before major damage occurs and takes a large repair cost. The results showed that the existence of high vibration at the 11-PA-7131A pump was caused by the parallel misalignment that occurred at the pump shaft and motor. This is indicated by the high amplitude of vibration on orders 1x, 2x and followed by the presence of amplitude on orders 3x. Vibration data retrieval after the alignment process on the pump shaft and motor also proves that there is a very significant change in vibration amplitude on orders 1x, 2x, and on order 3x. Overall vibration also experienced a very significant decrease so that the pump can be operated normally.
Isoconversional Analysis of Corn Silk Thermal Decomposition Fitting Model by Pyrolysis Process Himawan, Citrakara Upendra Sneha Bandhana Kusuma
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9234

Abstract

The pyrolysis characteristics and kinetics of corn silk were studied through thermogravimetric analysis in the normal room temperature range of -900 oC under a nitrogen atmosphere at heating rates of 20, 30 and 40 oC/minute. The results show that the pyrolysis process of corn silk is divided into three stages which can be associated with the process of dehydration or loss of water at a temperature of 65-150 oC, followed by a second stage, namely the main devolatilization at a temperature range of 225-525 oC and the final stage, namely slow decomposition up to 900 oC. The activation energy in the active pyrolysis stage was calculated using the Arrhenius fitting model and the isoconventional model using the Flynn-Wall Ozawa model and the Vyazovkin model. The resulting activation energies from the Arrhenius calculations are in the range of 195-215 kJ/mol and Ea using the Flynn-Wall Ozawa and Vyazovkin free model calculations of 195,355 and 215,522 kJ/mol, respectively.
Utilization of Sunlight through Spot Charging Development Integrated Trash Can Purnomo, Purnomo; Tuwoso, Tuwoso; Suharmanto, Suharmanto
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : Universitas Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9474

Abstract

The city of Blitar is geographically located at the foot of Mount Kelud. With these conditions, the city of Blitar has cool air with an average temperature of 24-340C, making it comfortable for studying and traveling. One of the cheap tours in Blitar City is Aloon-Aloon Blitar City which is located in the heart of Blitar City. Based on the results of observations, it was found that the level of awareness of visitors to environmental cleanliness was still low. This is shown by the large amount of garbage that is disposed of in any place, causing the beauty of Aloon-Aloon Blitar City to be affected. This study aims to develop appropriate technology that is able to increase visitor awareness of cleanliness. The research method used is development research by developing trash cans that are integrated with solar cell-based charging spots. The result obtained is the creation of a charging spot integrated with trash cans that can increase visitor awareness of waste. On the other hand, this solar cell-based charging spot technology is capable of charging 16 handphones with optimal duration of solar cell exposure to heat.
Design an Automatic Ph Controller Based on the Internet of Think Tuwoso Tuwoso; Purnomo Purnomo; Syamsul Hadi
TRANSMISI Vol 18, No 2 (2022): September 2022
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/jtmt.v18i2.9475

Abstract

The pH level in pond water has a very important role for the life of the fish in it. Moreover, the pond water functioned as a medium for fish cultivation. Appropriate pH levels have many benefits for fish farming. One of them is to increase fish productivity. This study aims to develop appropriate technology that can be applied to pond water. The result obtained is the creation of appropriate technology in the form of an automatic pH controller based on the Internet of Think (IoT). In simple terms, the workings of the automatic pH controller are that the pH sensor will detect levels of hydronium ion exchange (H+) in pool water so that the sensor can determine the pH level in pool water, then data from the sensor will be received by Arduino and will be processed so that it can be visualized on the display. LCD. The existence of this technology is able to make catfish grow optimally, so that freshwater aquaculture ponds become more productive.

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