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Urecol Journal. Part E: Engineering
Published by Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY
ISSN : -     EISSN : 27970418     DOI : -
Core Subject : Engineering,
Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering
Urecol Journal. Part E: Engineering is a peer-reviewed journal published by Konsorsium LPPM Perguruan Tinggi Muhammadiyah Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY. This scientific journal specifically discusses the findings, new methods, and research experiences in engineering sciences from the University Research Colloquium (URECOL) which is held twice a year
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol. 2 No. 2 (2022): August-Dec" : 5 Documents clear
Analysis of Carburizing Effect Due to Hardness and Microstructure on ST 60 Steel Using Carbon Particle with 80 Mesh Pramuko Ilmu Purboputro; Radix Ekaputra
Urecol Journal. Part E: Engineering Vol. 2 No. 2 (2022): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/uje.176

Abstract

This study aims to determine the effect of pack carburizing with annealing treatment using coal carbon, coconut shell carbon, mangrove tree carbon on the microstructure and hardness of the ST60 steel material. The pack carburizing process is carried out at a temperature of 900°C and held for 60 minutes by cooling to room temperature so that the carbon atoms are removed. In microstructure testing (SEM) on raw material, pearlite and ferrite phases are formed, after pack carburizing the phase is formed pearlite, ferrite and coated with graphite from carbon atoms causing the hardness of the specimen to increase in the pearlite phase exposed to carbon. The results of the Rockwell Hardness test on raw material 52.3 HRA after the pack carburizing process, the hardness of the material has increased which is found in coal carbon of 62.2 HRA, coconut shell carbon of 64.8 HRA and mangrove carbon of 60.7 HRA from the test. the chemical composition of the results obtained in the raw material condition of 0.404 when in pack carburizing increased each material coal carbon by 0.829, coconut shell carbon by 0.88, mangrove carbon by 0.76. So the carbon intake during pack carburizing is directly proportional to the hardness produced in the material.
Salt Marketing Strategy Design Using The SWOT - STP Method Lukman Hanif; Widyastuti
Urecol Journal. Part E: Engineering Vol. 2 No. 2 (2022): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/uje.177

Abstract

Marketing strategy is an important factor to achieve the success of marketing a product. Kugar Sari Laut is a salt business group that produces salt consumption and salt innovation. During the COVID-19 pandemic, Kugar Sari Laut sales turnover decreased by 50%. Therefore, for the company's sustainability, it was necessary to design a better marketing strategy. This study presents a marketing strategy design using combination SWOT and STP methods. SWOT (Strengths, Weakness, Opportunities, and Threats) method was used to identify marketing systems in Kugar Sari Laut. The salt quality identification survey was conducted to 400 respondents of salt users in Kebumen Regency. Observation of internal and external factors was carried out to the manager of Kugar Sari Laut. SWOT analysis results in four internal criteria (material, method, machine, person) and two external criteria (needs, competitors). Based on it, marketing strategy was designed using the STP method (Segmenting, Targeting, and Positioning). The segmentation aspect consists of two criteria: demographic and geographic. There were six criteria of targeting: method, people, demographic, geographic and trial duration. salt packaging variations are applied to the positioning aspect. The next process was testing new marketing strategy for two months. Wilcoxon test was used to validate the results of this process. The validation shows that there was a positive influence on the implementation of new marketing strategy.
Work Facilities Redesign Based on Subjective Complaints of Eggroll Snacks Workers Tri Anggoro Istianto; Retno Rusdjijati; Oesman Raliby Al-Manan
Urecol Journal. Part E: Engineering Vol. 2 No. 2 (2022): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/uje.178

Abstract

Eggroll snack workers often experienced subjective complaints on the waist, back, lower neck and upper neck, as well as the right forearm. This is caused by awkward work attitudes such as bending, looking down, standing and sitting for too long which is done repeatedly. This awkward work attitude is caused by non-ergonomic work facilities, such as a work desk that is too high or a work chair that is too short. So that subjective complaints experienced by workers can be minimized, it is proposed to redesign the work facilities of the eggroll snack production process based on ergonomic principles. The redesign includes 1) adding a support to the dough container with a height of 82.6 cm and can be raised and lowered; 2) redesign of the work table with a height of 64.5 cm, a width of 61 cm, a forward arm reach of 45.4 cm, and a redesign of a chair with a height of 70 cm and a side reach of 46.7 cm; and 3) the addition of product packaging supports with a height of 50.8 cm, chair height of 40 cm, and reach of the hands forward of 38.8 cm. The redesigned work facility is expected to be followed up by business actors, so that workers feel comfortable working, free from subjective complaints.
Experimental Study of Exhaust Manifold Modification using Orifice on Suzuki Satria F 150 Sartono Putro; Auliya Imam Maulana; Ribut Wahyu Purwanto
Urecol Journal. Part E: Engineering Vol. 2 No. 2 (2022): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/uje.179

Abstract

This study aims to determine the effect of modification of Exhaust Manifold using orifice on engine performance of Suzuki Satria F 150. Experiments were carried out by installing orifice blinds with diameters of 18, 20, 22 mm and circular perforated orifices with diameters of 19, 19.5, 20.5, and 20. mm on the exhaust manifold. Engine performance, torque and power were tested with dyno test. Fuel consumption is measured using a measuring tube. The results showed that using an orifice blind modification, the smaller the exhaust manifold area, the smaller the torque and power produced. The modification uses an orifice hole, the torque and power produced are close to the standard exhaust manifold. Optimal sfc on modifications using orifice blinds is obtained at engine speed of 6000 to 8500 rpm. While at engine speed of 9000 rpm and above, the modification of the exhaust manifold orifice hole is more optimal.
Design of Heat Exchanger for The Production of SnO2 Nanoparticle Yohanes Ivan Benaya Parlindungan Nainggolan; Asep Bayu Dani Nandiyanto
Urecol Journal. Part E: Engineering Vol. 2 No. 2 (2022): August-Dec
Publisher : Konsorsium LPPM Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53017/uje.205

Abstract

This study's objective is to examine the design of a heat exchanger for the production of SnO2 nanoparticles by calculating the shell and tube heat exchanger's dimensions. In order for the design to be well-directed, several steps must be taken, including determining the heat exchanger's dimensions and material requirements using standards, computing the main shell and tube components, and computing the heat exchanger's performance. Microsoft Excel is used for heat exchanger data processing. One shell and two tubes were used in the design of the heat exchanger. The results of the designed HE have a shell diameter of 0.84 m, a tube length of 7.315 m, and an inside diameter of 0.021 m. The flow type of HE is turbulent, with a heat transfer efficiency of 48.05 percent and a fouling factor of 0.0015195 m2·K/W, the device generates a heat transfer rate of 958198.91 W. This study demonstrates that the heat exchanger has a successful, high-performing design. This design can be used as a model for creating a heat exchanger that is more cost-efficient, efficient, and reliable.

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