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Reaktom : Rekayasa Keteknikan dan Optimasi
Published by Universitas Hasyim Asy'ari
ISSN : -     EISSN : 25484095     DOI : https://doi.org/10.33752/reaktom
Core Subject : Engineering,
Automotive Engineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering Engineering
Reaktom : Rekayasa Keteknikan dan Optimasi is open access and peer-reviewed journal, published by Universitas Hasyim Asy ari, Indonesia to disseminate research results from scientists and practitioners in Engineering and Science fields. Aim and Scope: Electrical Engineering: robotics, control system, microcontroller application, telecommunication, electronics, power electronics, power engineering, power distribution, etc. Mechanical Engineering: material engineering, production, automotive, energy conversion, aerodynamic, etc. Industrial Engineering: chemical engineering, physic engineering, instrumentation and control, industrial management, manufacture, etc. Civil Engineering: structure engineering, hydrology, geotechnical, construction management, etc. (but not limited to)
Arjuna Subject : Teknik (semua kategori) - Tenik Industri dan Manufaktur
Articles 5 Documents
 1 
Search results for , issue "Vol 5 No 1 (2020): Juni 2020" : 5 Documents clear
Perancangan Sistem Kendali dan Monitoring Tegangan Motor 3 Fasa Berbasis Internet of Things Menggunakan Aplikasi Blynk Supono, Tri Rijanto, Jati Widyo Leksono
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 5 No 1 (2020): Juni 2020
Publisher : Universitas Hasyim Asy'ari

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Abstract

Internet of Things is a technological development that must be followed along with the development of the era and revolution of the 4.0 industry today. With the Internet of Things can work more efficiently and effectively wherever we are like CCTV monitoring process, smarthome and 3 phase motor voltage monitoring. The purpose of this research is to control system switch on off and monitor the Internet of Things 3-phase motor voltages. This research is an experimental study by controlling the on off control system which is controlled from the Blynk application and monitoring the reading results of the ZMPT101B voltage sensor which measures the phase voltages R, S, and T whose results are sent by the ESP32 module to be displayed on a smartphone using the blynk application. This research uses the method measurement of voltage values not only relies on sensor readings, but also uses an AVOmeter with the aim of measuring the accuracy of sensor readings. From sensor readings and AVOmeter measurements, it will be compared to its value by knowing a percentage of error values from both measuring instruments. From the test results obtained an average time of 12.6 seconds for control on and 15.6 seconds for control off as well results in a motor voltage error value I phase R = 0.98%, S = 1,1%, T = 0,8% and motor II phase R = 2,1%, S = 2%, T = 1%. The average motor voltage using the AVOmeter gauge for motor I of R = 233.1 V, S = 234 V, T = 232.5 V, motor II phase R = 233.1 V, S = 233.6 V, T = 233 V, while the voltage sensor gauge ZMPT101B motor I average of R = 230.8 V, S = 231.4 V, T = 230.7 V, and phase II motor R = 228.2 V, S = 228.7 V, T = 230.2 V.
Analisis Reaktor Biogas Portable Dengan Bahan Baku Kotoran Sapi Mix Limbah Tahu Eko Heri Cahyono, Basuki, Mochamad Arif Irfa`i
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 5 No 1 (2020): Juni 2020
Publisher : Universitas Hasyim Asy'ari

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Abstract

The high level of disposal of livestock manure and liquid waste that is not handled properly causes environmental pollution, including water, soil and strong odors. This waste can be converted into an energy source that can be used as a biogas producer by building abiogas reactor unit portable. The problem in this research is how to design abiogas reactor portable, while the aim of this research is to know how the pressure and technology produced by thebiogas reactor. portable . This type of research that the author uses is quantitative research. For the method the author uses an experimental method, with the independent variable volume of raw material cow dung mix , tofu waste is 28 kg and the dependent variables are pressure and volume. The results showed that the biogas reactor was portable Raw material for liquid waste tofu mix cow dung with the highest volume of 34769 ml, for biogas production has the highest value of 0.0012367 liter / g, at pressure has the highest value of 118.7
Rancang Bangun Alat Pengering Biji Kopi Menggunakan Pemanas Kompor Gas Lpg Dengan Model Roll Reza Anjasmara Prasetya, Mochamad Arif Irfa’i, Agung Samudra
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 5 No 1 (2020): Juni 2020
Publisher : Universitas Hasyim Asy'ari

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Abstract

Coffee is one of the major agricultural commodities in Indonesia. The drying process is carried out conventionally (naturally), requires a relatively longer drying time between 1-2 weeks depending on the weather and hot sun, to shorten the time in the coffee bean drying process, a replacement heat source is needed, using a dryer with a roll tube type. which rotates using an LPG gas stove heater. The drying process uses drying variations of 60, 120, and 180 minutes with an initial weight of 1000 gr coffee beans with an initial moisture content of 22.8%. The drying process took 60 minutes, the weight of coffee beans was 955 gr, with 21% moisture content, temperature 42 ° C. Time 120 minutes, weight 911 gr with 20% moisture content, temperature 42 ° C, while time 180 minutes, weight yield 863 gr, water content 17%, with a temperature of 43.5 ° C. The greater the temperature in the drying process, the more effective it is to reduce the weight and moisture content of the coffee beans. The standard of coffee beans is 12% with a maximum drying temperature of 55 ° C.
Pengaruh Perubahan Diameter Pipa Mendadak 1 Inch ke ¾ dan 1 ¼ Inch Terhadap Pressure Drop dengan Variasi Bukaan Katup Muhammad Taufiq Afifudin, Basuki, Mohammad Arif Irfa’i
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 5 No 1 (2020): Juni 2020
Publisher : Universitas Hasyim Asy'ari

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Abstract

Application of the principles of fluid mechanics can be found in the fields of industry, transportation and households. The series of PVC pipes that are used to distribute water at home, of course, has losses caused by its components, one of which is the change in the cross-section of the pipe. One of the energy losses in the change in pipe section is the pressure drop. The pressure drop can be influenced by the fluid flow discharge and the magnitude of the change in the pipe, dibit has fluid flow which causes pressure on the pipe wall. The research in this thesis was carried out in the Mechanical Engineering Laboratory of the Hasyim Asy'ari University. This research is quantitative in nature which will discuss the pressure drop in the sudden change in cross-section which has a diameter of 1 inch to ¾ inch and 1 inch to 1 ¼ inch with variations in valve openings of 100%, 75% and 50%. 1 inch to ¾ inch at each valve opening is 100% 0.1 bar, 75% 0.09 bar and 50% 0.05 bar, while the pressure drop of 1 inch cross section change at each valve opening is 100% equal to 0.03 bar, 75% at 0.03 bar and 50% at 0.06 bar.
Pengaruh Jenis Sambungan Pipa Elbow 90° dan Short Bend Terhadap Head Loss Pada Sistem Perpipaan Bambang Kurniawan, Basuki, Mochamad Arif Irfa`'i
Reaktom : Rekayasa Keteknikan dan Optimasi Vol 5 No 1 (2020): Juni 2020
Publisher : Universitas Hasyim Asy'ari

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Abstract

The environment around us will not be far from the flow of fluids to meet the needs of life. For example, a series of PVC pipes used to distribute water at home, of course, has losses caused by its components, one of which is the pipe bend connection. One of the energy losses in changing the pipe cross section is the pressure loss. The pressure loss can be affected by the flow rate of the fluid and the magnitude of the bend connection of the pipe. The research in this thesis was carried out in the Mechanical Engineering laboratory of Hasyim Asy'ari University. This research is quantitative in nature which will discuss about the pressure loss in elbow pipe bends or broken and short pipe bends with a cross-sectional size of 1 terhadap inches to the value of pressure loss. The results showed that the greatest value of pressure loss was in the bend of the elbow or broken pipe, which was 0.002206 m, while the smallest value of pressure loss was in the bend of the short pipe which had a value of 0.00000332 m. So the conclusion of this pressure loss research is that the greater the r/d value of the pipe bend, the smaller the pressure loss value.

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