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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 44 Documents
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Economic Evaluation of Cobalt Ferrite (CoFe2O4) Nanoparticles Using Thermal Decomposition Synthesis Method Sadina Sahitya Dewi; Wafa Raihanah Arwa; Dewi Yulina Nur Soleha; Silmi Ridwan Putri; Asep Bayu Dani Nandiyanto
Urecol Journal. Part E: Engineering Vol. 1 No. 2 (2021): 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.109

Abstract

The purpose of this study was to determine the technical and economic feasibility of a project to manufacture CoFe2O4 nanoparticles using the thermal decomposition synthesis method on an industrial scale. The method used in economic evaluation is to compare several parameters such as gross profile margin (GPM), payback period (PBP), breakeven points (BEP), internal rate return (IRR), cumulative net present value (CNPV), return on investment (ROI), and profitability index (PI). The results show that the production of CoFe2O4 nanoparticles is profitable on an industrial scale with a relatively lower selling price than the market price and a relatively small size. This project can run within nine years and the investment will be profitable within 2 years according to PBP results.
Chemical Characteristics of Surface Water of Sumpil River and Groundwater on its Surroundings Mukhlis Arief Irvandi; Hari Siswoyo; Dasapta Erwin Irawan
Urecol Journal. Part E: Engineering Vol. 2 No. 1 (2022): January-June
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.137

Abstract

The objective of this study was to know the chemical characteristics of surface water in a segment of Sumpil River and the groundwater on its surrounding. The location of this study was in 3 cross sections, consisting of 1 well on the right of the Sumpil River, 1 well on the left of the Sumpil River flow, and 1 point on the Sumpil River flow. The chemical characteristics of the water were determined by the concentrations of cations and anions in the water sample using the Piper Trilinear Diagram with the GW Chart 1.30 computer program. Based on the results of the study, it was shown that the chemical characteristics of the Sumpil River water and the groundwater at the location of this study were the same, where all water samples had an alkaline earth metals content over the alkali content (zone 1), had a strong acidic content exceeding the weak acidic content (zone 4), have a balanced cation and anion pairs, none of which exceed 50% (zone 9), and shown that all of the water in the location of this study were fresh water.
Implementation of Palm Oil Waste Nano Technology to Increase the Durability of Road Pavement Materials: Proposed Research Roadmap Sri Sunarjono; Ngafwan Ngafwan
Urecol Journal. Part E: Engineering Vol. 2 No. 1 (2022): January-June
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.138

Abstract

Many road pavements using asphalt mixtures in Indonesia are found to be not durable, especially heavy traffic roads. Even road damage often occurs early before the service life is reached. Many efforts have been made to improve the strength and durability of the mixture, but have not been effectively. For example, the use of fillers can increase the strength and durability of the mixture significantly, but its performance at low temperatures has an impact on the risk of hardening and cracking. The research objective is to propose the idea of implementing nanotechnology for palm oil waste materials to increase the durability of road pavement materials based on the research roadmap developed. The method used is through five approaches, namely: (i) review of research results on the durability of road pavement materials, (ii) review of research results on the implementation of nanotechnology in road pavement materials, (iii) research gaps, (iv) research ideas, and, (v) proposed research roadmap. A research roadmap for the implementation of nanotechnology to improve the durability of road pavement materials has been prepared. The substance of the research roadmap proposes three ideas, namely maximizing the function of nanomaterials as: (i) anti-aging agent, (ii) protecting water infiltration into the body of the asphalt mixture, and (iii) bonding agent between asphalt-aggregate.
Design and Implementation of Automatic Switching for Water Level Control of Community Water Supply Agus Ulinuha; M. Rusdi Wibowo
Urecol Journal. Part E: Engineering Vol. 2 No. 1 (2022): January-June
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.140

Abstract

This paper presents design and implementation of Automatic Switching for controlling the water level in the reservoir of community water supply. The water supply system is energized by 2 sources i.e. power from utility grid and power generated by photovoltaic panels equipped with energy storage. The switching is based on the reservoir water level and determines the operation of submersible pump. The switching system employs electrode sensors in the water control level where 3 conditions are considered to control motor that drives the pump. The Automatic Switching is connected to Automatic Transfer Switch (ATS) that selects power sources to energize the pump, where it may be from the solar PV supported by storage system or from the grid. The selection is based on the remaining energy saved in the storage, when it is sufficient then it is used to energize the pump. Otherwise, the power from the grid is used to supply the pump. The combination of Automatic Switching and ATS determines when the pump is on and which power is taken to supply the pump. The manual system is complemented in the switching system to enable manual operation when the automatic system fails to work for some reason. The whole system is developed in a panel for easy operation and monitoring. The water level indicator is given in the panel for the purpose of adjusting the pump operation based on water level in the reservoir.
SISENSI: QR Code-based Academic Attendace System Arif Setiawan; Dwi Nur Fitria Agustin Rahayu
Urecol Journal. Part E: Engineering Vol. 2 No. 1 (2022): January-June
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.141

Abstract

Presence is something that cannot be separated from the learning process, it becomes motivation and discipline information for every activity in it. This study aims to develop a QR Code-based academic attendance application that can be used by Informatics Engineering Education students. The research method used is R&D (Research and Development) using the RAD (Rapid application development) development model. Application development made using Kodular and Moodle. This application contains a QR Code scan menu as the main focus in this media as well as other supporting menus in the form of virtual tours, news, timetables, and UMS stars. In the process of developing this application, several tests were carried out, namely functionality testing using blackbox, usability testing using the SUS (system usability scale) instrument, reliability testing and application compatibility testing using the firebase test lab. used based on the validation carried out by experts as many as three experts from Informatics Engineering Education lecturers and trials given to users as many as thirty-five students from the Informatics Engineering Education study program, it can be said that the application is suitable for use by Informatics Engineering Education students.
Implementation of the Code Igniter Framework in the Online New Student Admission Application at SMK Muhammadiyah 2 Mertoyudan Magelang Andre Saputro; Nuryanto Nuryanto; Ardhin Primadewi
Urecol Journal. Part E: Engineering Vol. 2 No. 1 (2022): January-June
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.143

Abstract

Student admission is one of the processes that exist in educational institutions. Schools accept students by selecting grades, achievements, and other factors. SMK Muhammadiyah 2 Mertoyudan located in Magelang Regency conducts semi-manual PPDB by compiling ledger records and spreadsheets. The school has difficulty getting PPDB historical data and PPDB reporting. Besides the CPDB has difficulty monitoring registration data directly. The PPDB application is developed with the Code Igniter framework with main features that can be accessed by 3 actors (PPDB manager, CPDB and admin). Applications can store historical data, provide convenience with all forms of custom PPDB reporting and can be accessed online by CPDB and CPDB trustees. From the results of the user acceptance test carried out on schools and CPDB, an assessment of 84.8% was obtained which showed that respondents were satisfied with the functionality of the online PPDB application.
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.

Page 4 of 5 | Total Record : 44

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