Audio/Video Selector 5 Channel dengan Menggunakan Program Mikrokontroler AT89C2051

Audio / Video Selector 5 Channel with Microcontroller AT89C2051 is a tool used to select one of the audio / video electronic equipment such as DVD player, VCD player, Playstation to be activated. This tool uses the AT89C2051 microcontroller which has been programmed as the control center of the 5 channel audio/video selector circuit by pressing the remote as the controller. The input of the device is connected to several electronic equipment and the output is connected to a television set. This tool makes it easy for owners of television sets that only have one A/V jack input.

Analisis Perencanaan Jarak Celah Udara Pada Generator Axial

The generator uses a permanent magnet so it does not require initial excitation to generate a voltage. The generator design is axial flux type, uses ceramic type permanent magnet (NdFeB), uses two flanking stator rotors. For electricity use, the AC voltage is changed to DC voltage using a rectifier for charging the accumulator. The air gap in the axial generator is the distance between the rotor and the stator. The air gap is also a place for the transfer of the magnetic field through the coil on the stator to produce a magnetic flux value that affects the induced voltage in the coil. The faster the rotation, the greater the voltage generated. This axial generator that has been designed can produce a frequency of ± 50 Hz, an effective voltage of ± 22 V when the air gap is 2 mm, the frequency measurement has an error of 10-20 Hz and an error percentage of 5-10%, with the results of measuring the induced current that has a large the same voltage.

Studi Intensitas Cahaya Matahari Dengan Data Logger Untuk Efektiv Penempatan Panel Surya

Renewable energy is energy produced from natural sources, such as light, wind, rain, tidal currents, and geothermal, which is renewable or can naturally reappear after being used. In this study, a study of the effectiveness and efficiency of power plants in certain locations. For this reason, it is necessary to design a tool in the form of a data logger that is used to collect parameter data such as light intensity, electric voltage, electric current, power, temperature, humidity, wind speed, and others. The placement of the data logger will help in the basic test of the feasibility of using energy sources later. Data logger is a system that can record automatic parameters of current, voltage, power on solar panels and automatically record conditions of temperature, humidity in the solar panel. The results of logger data on light intensity for a more efficient placement of solar panels occur at location 1 Beach behind Kmpus UBH 1, where at that location has an average light intensity of 798.24 Cd.

Analisa Pembangkit Listrik Tenaga Uap Skala Laboratorium Dengan Bahan Bakar LPG

The steam turbine is an initial drive that converts the potential energy of steam into kinetic energy and is subsequently converted into mechanical energy in the form of a turbine shaft rotation, directly or with the help of a reduction gear, connected to the mechanism to be driven. In research to analyze the performance of a steam turbine using LPG gas as fuel. Where in this study using the results of wet steam to move the turbine shaft with variations in pressure (7Bar, 6Bar, 5Bar and 4Bar). So that the maximum result is 7 Bar, the steam mass obtained is 0.09 with a time of 1.5 hours by heating 15 liters of water, the steam power produced is 25.6 Watts, the shaft power is 18.01 Watts and the maximum electrical power produced is 20 Watts. the turbine work efficiency is 78.12% and the result is a generator efficiency of 25%.

Rancangan Bangun Turbin Mikrohidro Tipe Archimedes Screw Dengan Kapasitas Daya 560 Watt

The performance of a micro-hydro turbine was influenced by several factors, namely the design and the enviromental. This study aims to obtain the appropriate design parameters for the manufacture of screw turbines. This research was focused on blade dimensions and turbine screw pitch distance. The calculations were performed using several screw turbine fixing formulations. The design results show that the optimum blade diameter and turbine pitch range are 0.213 m and 0.312 m at 0.2 m3 / s of turbine inlet water flow and 563.3 Watt turbine shaft output power. The turbine screw test results of the design were carried out in the river flow of Puri Kedaton Housing, Pematang Gajah Village, Rt 13, Jambi Province. The test results show that the highest turbine power occurs at 30 kg shaft loading with a turbine output power of 445 Watts and an efficiency of 78.9%.

Perancangan sistem Pembangkit Listrik Pico Hydro Putaran Rendah Menggunakan Turbin Screw

Kinerja sebuah screw turbine dipengaruhi oleh parameter-parameter yang terkait dalam perancangan screw turbine itu sendiri. Salah satu parameter penting dalam perancangan screw turbine adalah pitch atau jarak periode dari sebuah sudu (blade), sudut kemiringan, putaran dan debit air Kebutuhan akan energi listrik saat ini dirasakan sangatlah penting, baik untuk kebutuhan rumahan, maupun untuk kebutuhan industri yang semakin hari semakin berkembang, sementara unit–unit pembangkit listrik yang ada hampir tidak mengalami peningkatan yang signifikan. Indonesia mempunyai potensi energi terbarukan yang cukup banyak untuk dimanfaatkan salah satunya energi air. Potensi ini belum bisa dimanfaatkan secara optimal karena keterbatasan teknologi turbin dalam memanfaatkan energinya. Untuk head dan debit yang sedang hingga tinggi saat ini masih mengandalkan turbin Pelton, Francis, Kaplan, dan Crossflow. Sedangkan untuk head yang rendah masih sulit untuk dikembangkan, padahal di Indonesia mempunyai potensi yang sangat besar. Dalam pengujian PLTPH menggunakan turbin screw didapatkan hasil tertinggi dengan tegangan 129,2 V AC dengan arus beban tertinggi hingga 0,65 sedangkan ampere generator sebesar 1,79 Ampere yang mampu digunakan untuk beban hingga 180 W pada tegangan 75,5 Volt AC pada ketinggian air 80 Cm, dan pada keadaan tegangan terendah menghasilkan 80,6 Volt AC dengan ampere beban 0,15 dan Ampere generator sebesar 0,42 Ampere yang dapat dibebani dengan lampu 20 Watt pada ketinggian air 70 Cm.

Analisis Terjadinya Arus Netral Pada Trafo Distribusi 160 kVA

The Power distribution in a 3-phase system, cannot be separated from the flow of current in the neutral of the transformer, which will cause power losses (losses) where current flows into the neutral conductor and losses that flow into the neutral conductor. This study was conducted to determine the causes and magnitude of power losses that occur due to the occurrence of neutral current flowing in the neutral conductor in a 160kVA distribution transformer. The research location taken is the Distribution Transformer (G187 T) which is located on Jl. Hos Cokroaminoto Wisma Ombilin where load imbalances often occur. From the results, it can be seen that if the neutral wire has a cross-sectional size of 50 mm2, the current that passes through the neutral wire is 6.4% for the day and for the cross-sectional size of the wire is 70 mm2, it can reduce the power flowing to the neutral by a percentage of 4.77%. for the daytime. Efficiency value that occurs is greater at night that is 94.87% while for the day it is 93.44%. For the distribution of each - each phase, especially the S phase, so that it can be balanced because the power supplied to the S phase is too small. We recommend that the current flowing in the neutral wire must be channeled to the ground so that the current flowing in the neutral wire becomes zero.

Perancangan Regulasi Tegangan AC - DC Menggunakan Filter Pasif

The adapter / power supply is a DC voltage source that is used to provide voltage or power to various electronic circuits that require DC voltage to operate. The main circuit of the power supply is a rectifier, which is a circuit that converts an alternating signal (AC) into a direct signal (DC). The conversion process starts from rectification by the diode. In this paper, the Ripple Voltage Filter is carried out using a passive filter and the average voltage drop of the filter is 64%, the regulation (regulation) by the regulator circuit, the provision of this DC electrical energy source is to provide a unidirectional variable voltage ( DC) which aims to provide practical tools in Batanghari University electric laboratories while the benefits obtained from the research results are as a tool for practical activities in the electrical engineering laboratory of Batanghari University, Jambi.

Analisa Pengaruh Perubahan Beban Output Turbin Terhadap Efisiensi Boiler

In palm oil processing companies to become oil, the boiling process is carried out to make it easier for the loose fruit to come from the bunches, to stop the development of free fatty acids and will cause the tbs to soften so the oil extraction process becomes easier. The boiling process requires steam from steam. Steam is obtained by heating a vessel filled with water with fuel. Generally, boilers use liquid, gas and solid fuels. Steam functions as a boiling and electric generator, the company uses a boiler as a steam producer to support the production process. A boiler or steam boiler is a closed vessel used to produce steam through an energy conversion process. To find out the boiler efficiency, a calculation is carried out by taking the parameters needed for boiler operation, from the analysis the highest boiler efficiency results are 83.56% and the lowest is 75.25%, where the heating value with 13% fuel at 1000 Kw load is 83, 56%. And the calorific value with 10% fuel at a load of 750 Kw is smaller with a value of 75.25%.

Desain Charger Control Pembangkit Listrik Tenaga Hybrid Dengan Pengaturan Duty Cycle PWM

The use of DC source voltage obtained from solar cells and DC generators varies in value depending on the surrounding natural conditions, for that a controller is needed which functions to regulate the voltage in carrying out the charging process to the accumulator. This paper will discuss about the design of charge controller based on Arduino Uno R3 with ATmega328 microcontroller. This controller is used to regulate the charging process from a DC source with a maximum open circuit voltage of 24 Volts, which is then used to charge the 12 Volt accumulator. This charge controller works by sending a source voltage that is regulated by pulse width modulation. When the accumulator voltage is 13.8 Volt, the controller will carry out a charging process with a duty cycle of 95%, if the accumulator voltage is> 13.8 Volts and ˂14.4 Volts, charging will be carried out with a duty cycle of 10%, and if the accumulator voltage exceeds 14.4 Volt, the charging process will be stopped. Some protection equipment is also included in this charge controller such as overvoltage protection, overcurrent and also control of the connection breaker to the load when the accumulator voltage is weak, and a disconnect from source to accumulator when the accumulator condition is full. To show the work of the whole system, with the Arduino Uno R3 microcontroller the parameters of source voltage, accumulator voltage and percentage of accumulator status are displayed on the LCD screen then 2 LED lights and a buzzer as indicators during the charging process and when the accumulator condition is weak. From the results of the voltage reading on the voltage divider sensor, it has an error of less than 6.22% at the source terminal and 6.89% at the accumulator terminal..