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All Journal Jurnal ULTIMATICS Jurnal Ilmiah Teknik Mesin Poros
Kevin Sanjaya
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Mechanical Engineering

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Optimalisasi Lampu Lalu Lintas dengan Fuzzy Logic Adhitya Yoga Yudanto; Marvin Apriyadi; Kevin Sanjaya
Ultimatics : Jurnal Teknik Informatika Vol 5 No 2 (2013): Ultimatics: Jurnal Ilmu Teknik Informatika
Publisher : Faculty of Engineering and Informatics, Universitas Multimedia Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (858.376 KB) | DOI: 10.31937/ti.v5i2.322

Abstract

The traffic lights problem is already commonly found in large cities. The traffic lights are supposed to control the flow of the road, but sometimes causes a congestion. This happens because the distribution of the time are all the same for all lines, without seeing the condition of the density of each lane. There’s one effort that can be done to overcome this problem, is to create a traffic light control system. With this system, the congestion that occurs around the traffic lights can be reduced. This system is using fuzzy logic. Fuzzy logic is one of computer science that studies about the value of truth that worth a lot. For example, a air conditioning system control subway Sendai in Japan. As for making a traffic light control system, the author using Fuzzy Inference System (FIS) that already exist in the application of MATLAB R2013a with Mamdani method. Index Terms —fuzzy logic, traffic lights, MATLAB.
UJI EKSPERIMENTAL MESIN PENDINGIN BERPENDINGIN UDARA, DENGAN MENGGUNAKAN REFRIGERAN R22 DAN REFRIGERAN R407C Kevin Sanjaya; I Made Kartika; Harto Tanujaya
Jurnal Ilmiah Teknik Mesin POROS Vol 12, No 2 (2014): Jurnal Ilmiah Teknik Mesin POROS
Publisher : Program Studi Teknik Mesin Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (441.775 KB) | DOI: 10.24912/poros.v12i2.565

Abstract

Abstract: Refrigerant R22 can cause ozone layer depletion so that required refrigerant substitute for R22. Refrigerant R407C is one of the refrigerant substitute for R22. Research of refrigerant in the cooling engine with air-cooled condenser is done by experimental methods. This research was conducted using refrigerants R22 and refrigerant R407C with a flow rate of 20 L /h, 40 L/h, 80 L/h and 120 L/h. Test data processing include the calculation of refrigeration capacity, compressor power and COP values. COP or Coefficient Of Performance shows the efficiency of the refrigerant. The best COP values are in the refrigerant flow rate of 40 L/h, with R22 COP value of 5.818 and R407C COP value of 4.875. 
Co-Authors Adhitya Yoga Yudanto Harto Tanujaya I Made Kartika Marvin Apriyadi