Yohanes Primadiyono, Yohanes
Jurusan Teknik Elektro, Fakultas Teknik, Universitas Negeri Semarang

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Pengaruh Penerapan Model Pembelajaran Problem Solving Terhadap Peningkatan Hasil Belajar TIK pada Siswa SMP Negeri 1 Ulujami Wijayanti, Septiani; Primadiyono, Yohanes; Purbawanto, Sugeng
Edu Komputika Journal Vol 4 No 1 (2017): Edu Komputika Journal
Publisher : Jurusan Teknik Elektro Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/edukomputika.v4i1.20545

Abstract

The purpose of this study was to determine the effect of the application of problem solving learning model to increase learning outcomes of ICT in class VIII SMP Negeri 1 Ulujami. The method used is a method of quantitative experiments. The population in this study were all students of class VIII SMP Negeri 1 Ulujami the academic year 2015/2016 with the number of 364 students. The research sample is chosen randomly selected classes are two classes as class ekserimen (VIII-A and VIII-G) and two classes as the control class (VIII-C and VIII-I). The results showed the average posttest experimental class learning model of problem solving that is class VIII-A is 86 and VIII-G is 86, while those using the lecture method on the control class is class VIII-C is 79 and VIII-I was 83. the results of the study concluded that there are significant learning model application problem solving to learning outcome of ICT on students of SMP Negeri 1 Ulujami. It can be seen from the results of the linear regression equation VIII-A is ý = 0.29 + 63,79X and the results of the linear regression equation VIII-G is ý = 0.57 + 40,91X means that the effect of variable to variable pretest posttest is positive, showing a rise of the value pretest will be followed by a rise in the value of the posttest.
Alat Penyempot Pestisida Tenaga Surya Menggunakan Panel Surya 30W Edi Sarwono; Subiyanto Subiyanto; Yohanes Primadiyono; Riana Defi Mahadji Putri; Ari Dwi Prasetio; Asriningati Asriningati; Fahimatul Ilmi
Journal of Electrical Power Control and Automation (JEPCA) Vol 4, No 2 (2021): Desember
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jepca.v4i2.50

Abstract

Pesticide sprayer tools that are widely used by farmers are still using hands or fossil fuel machines, so they are still classified as traditional and ineffective methods. Some of the weaknesses of the traditional method include less practical, fossil fuels that will run out and the impact on the environment. Solar energy from the sun can be a solution to these problems. Solar panels are devices used to convert sunlight into electrical energy. In this study, a monocrystalline 30W solar panel was used as a tool used to capture sunlight. By utilizing solar power as an energy source sprayer and pump so that it can take advantage of the hand pressing the lever and refilling it manually. In addition, preferring solar power over fossil fuel engines can reduce the use of fossil fuels and further strengthen renewable energy that will not run out and is environmentally friendly. In this study, solar panels were installed above the head to maximize the capture of sunlight and also protect the head from the heat of the sun. The results showed that the battery energy required to spray the difference in battery percentage from 10 liters to 6 liters of liquid volume was 4% and from 6 liters to 2 liters of liquid volume was 6%.
Pengaruh Perubahan Dimensi Filter-Drier Dan Pipa Kapiler Terhadap Coefficient Of Performance (COP) Mesin Pendingin Kulkas 2 Pintu Khairul Mustofa; Yohanes Primadiyono
Jurnal Teknologi Terapan Vol 7, No 1 (2021): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v7i1.316

Abstract

COP on a cooling machine is used to reveal the performance of a cooling engine. To increase the COP value in the system, it can be done by changing the dimensions of the filter-drier and capillary pipes used. Therefore, this study was conducted to determine the effect of changing the dimensions of the filter-drier and capillary pipe on the COP and the consumption of electrical power produced by the 2-door refrigerator unit. The method used was an experimental method, namely by varying the filter drier and capillary tube dimensions of the 2-door refrigerator. Variations of filter driers used were filter driers with sizes 7 cm and 9 cm. While the capillary pipes used were 0.31 inches in diameter and 0.51 inches in diameter with a length of 200 cm and 250 cm respectively. The results obtained from this study indicate that the greatest COP value is obtained when using a 7 cm filter-drier and a capillary pipe with a diameter of 0.31 inches with a length of 200 cm, which is 2.80. The COP value also continues to decline as the size of the filter-drier and capillary pipes used increases.
Simulasi Kendali Motor DC Penguat Terpisah Menggunakan Kendali Fuzzy-FOPID Muhamad Asbi; Subiyanto Subiyanto; Yohanes Primadiyono
Jetri : Jurnal Ilmiah Teknik Elektro Jetri, Volume 17, Nomor 1, Agustus 2019
Publisher : Website

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1299.383 KB) | DOI: 10.25105/jetri.v17i1.4109

Abstract

In this study, Fuzzy-Fractional Order Proportional Integral Derivative (Fuzzy-FOPID) control technique is applied to regulate the speed of a separately excited DC motor. This control technique uses a combination of two intelligent algorithm tuning methods, Fuzzy logic and Genetic Algorithm (GA). This is done to get an effective and powerful control effect. The identification of parameters in the form of Kp, Ki and Kd uses fuzzy logic and for fractional parameters in the form of μ and λ using GA. To find out the performance of this control technique several tests have been carried out using the MATLAB 2013a simulation which then the results are compared with Fractional-Order PID (FOPID) control technique where all parameters are obtained using GA tuning. In testing the speed and constant load the performance of the Fuzzy-FOPID control has a smaller overshoot value and the settling time is faster than the FOPID control. The FOPID driver has a better undershoot response of 0,25% when there is a change in the added load. But when testing the speed change, Fuzzy-FOPID control has a fast and stable response with an undershoot value of 0.875% and a 0.143% overshoot, smaller than the FOPID control. From the results of all tests, it can be concluded that Fuzzy-FOPID control is better and more efficient than FOPID control.Dalam penelitian ini, teknik kendali Fuzzy-Fractional Order Proportional-Integral-Derivative (Fuzzy-FOPID) diterapkan untuk mengatur kecepatan motor DC penguat terpisah. Teknik kendali ini menggunakan gabungan dua metode penalaan algoritma cerdas yaitu logika fuzzy dan Algoritma Genetika (GA). Hal ini dilakukan untuk mendapatkan efek kendali yang efektif dan kuat. Penalaan  parameter Kp, Ki, dan Kd menggunakan logika fuzzy dan untuk parameter fractional μ dan λ menggunakan GA. Untuk mengetahui kinerja dari teknik kendali ini telah dilakukan beberapa tes menggunakan simulasi MATLAB 2013a yang kemudian hasilnya dibandingkan dengan teknik kendali lain yaitu teknik kendali FOPID dimana semua parameternya didapat dengan menggunakan penalaan GA. Pada pengujian kecepatan dan beban konstan performa kendali Fuzzy-FOPID memiliki nilai overshoot yang lebih kecil dan settling time lebih cepat dibanding kendali FOPID. Pengendali FOPID memiliki respon undershoot yang lebih baik sebesar 0,25 % ketika tejadi  penambahan  beban. Namun ketika dilakukan pengujian perubahan kecepatan, kendali Fuzzy-FOPID memiliki respon yang cepat stabil dengan nilai undershoot 0,875 % dan overshoot 0,143%, lebih kecil dibandingkan dengan kendali FOPID. Dari hasil seluruh pengujian dapat disimpulkan bahwa kendali Fuzzy-FOPID lebih baik dan effisien dibandingkan dengan kendali FOPID.