Electrical EngineeringElectrical Engineeringhttp://repository.president.ac.id/xmlui/handle/123456789/182024-03-28T09:40:51Z2024-03-28T09:40:51ZAT89S52 BASED EXHAUST FAN CONTROLLER BASED ON SENSOR READING USING PHASE FIRING ANGLE METHODDwijadmika, Bagoeshttp://repository.president.ac.id/xmlui/handle/123456789/114242023-05-23T02:14:32Z2013-01-01T00:00:00ZAT89S52 BASED EXHAUST FAN CONTROLLER BASED ON SENSOR READING USING PHASE FIRING ANGLE METHOD
Dwijadmika, Bagoes
Exhaust fan as one of the common electrical appliance that widely used for home and industry, is mostly still operated manually. However, this condition can be modified into automatic operated by adding processor unit and also several supporting electrical components. Automatic in this project means exhaust fan can operate in different levels of power, based on sensor TGS 2600 reading. However, the range of sensor reading is decided manualy. In order to control and to process, microcontroller AT89S52 is utilized both in hardware and software to be able to control the fan, as the load. To limit amount of electric source supplied to the load, triac is used as high speed switching device. Zero crossing detector will be required in AC volage controller to obtain ideal range of triac firing, by pulsing each time AC wave form hit zero point. Since the load is AC sourced, the suitable theory that used is phase control using triac, or also called phas firing angle. The result of this project is obtained by comparing collected data with calculation; however, there is deviation between calculated result practical result. On the other hand, the load is responding very well toward sensor reading. By controlling its voltage, it means power consumed also reduces which directly contributes to energy saving and efficiency.
2013-01-01T00:00:00ZStudi Tentang Pengaruh Temperatur Sambungan Terhadap Intensitas Cahaya Pada Lampu LED Serial NL500Santoso, Fajar Heruhttp://repository.president.ac.id/xmlui/handle/123456789/90022022-08-11T09:15:15Z2021-01-01T00:00:00ZStudi Tentang Pengaruh Temperatur Sambungan Terhadap Intensitas Cahaya Pada Lampu LED Serial NL500
Santoso, Fajar Heru
Kebutuhan pencahayaan di tambang batubara adalah vital untuk proses produksi. Adanya masalah sejumlah lampu Led yang mati di area tambang merupakan tantangan bagi PT Nobi Putra Angkasa untuk melakukan inovasi unit lampu LED berdaya besar. Penulis adalah praktisi sebagai kepala bagian produksi di perusahaan itu yang merupakan manufaktur lokal yang mengembangkan inovasi dari Lampu PJU ke lampu tambang dengan standar SNI yang sudah menembus pasar di perusahaan tambang besar. Setelah dilakukan pemeriksaan secara visual pada lampu LED yang mengalami kerusakan adanya indikasi kelebihan panas. Pengujian berbagai tipe lampu LED untuk mengetahui pengaruh kenaikan temperatur sambungan (junction temperature) terhadap penurunan intensitas cahaya. Pengujian dilakukan dengan menggunakan 4 sampel lampu NL500A, NL500B, NL500C, NL500D. Untuk waktu pengujian dilakukan per 15 menit sampai menemukan data yang stabil pada menit ke 180 .Hasilnya pengujian pada lampu adalah temperatur sambungan NL500A = 80.76°C., NL500B = 90.98°C., NL500C = 71.32°C., NL500D = 75.31°C. dari hasil tersebut bahwa memenuhi standar datasheet pabrikan LED maksimum 150°C. Metoda kesimpulan ini adalah korelasi panas yang ditimbulkan dan panas yang dibuang melalui sirip. Lampu LED NL500 A, C dan D adalah manufaktur internal perusahaan menggunakan mesin SMT, sedangkan NL 500B produk import. Lampu NL 500D menggunakan LED Nichia 149 dengan efikasi 133,64 Lumen/ watt dari hasil uji Fotometri metoda IES 79-08. Pengukuran junction temperature (Tj) NL500C paling baik untuk transfer panasnya sehingga nilai Tj nya paling kecil dengan nilai rata-rata 58,52°C karena resistance thermal = 0.9 °C/Watt. Lampu LED NL500D unggul di intensitas cahaya dengan nilai rata-rata 3794,16 lux.
2021-01-01T00:00:00ZINTEGRATED SENSOR FOR GAS POLLUTANTS MONITORING SYSTEM IN JABABEKA INDUSTRIAL ESTATEChiu, Enndihttp://repository.president.ac.id/xmlui/handle/123456789/90002022-08-11T09:12:35Z2021-01-01T00:00:00ZINTEGRATED SENSOR FOR GAS POLLUTANTS MONITORING SYSTEM IN JABABEKA INDUSTRIAL ESTATE
Chiu, Enndi
Industrial area is a good place to produce, distribute, and helping the economic growth in nation. In general, factories are using trucks to deliver goods for the consumer. However, due to massive transportation passing by, air quality got affected continuously and got worsen. Hence, it is necessary to monitor the the level of gas pollutants that can endanger the human respiratory system. This work presents the integrated sensor consists of Arduino Uno and Raspberry Pi 1 Model B+ that can monitor 3 different parameters such as CO, CO2, and NH3 in industrial area in Lippo Cikarang. For monitoring system, the author uses Node-RED for implementing the internet of things system. For gas sensor, author uses MQ-135 air quality sensor to detect 3 parameters with calibration and graph converting in order to monitor the gas pollutants level. The main goal of this work is to contribute data for the Jababeka Industrial Area. The experiment has been successfully done where table and graph are shown to be analyzed and summarized. Result of the measurement is compared with environmental air quality standard. The average level of ppm in industrial area for CO2 is 30 ppm, for NH3 is 28.9 ppm, and for CO is 27.08 ppm. Also, The average level of ppm in residential area for CO2 is 21.32 ppm, for NH3 is 19.3 ppm, and for CO is 20.93 ppm.
2021-01-01T00:00:00ZIOT BASED SINGLE AXIS SOLAR TRACKING SYSTEM WITH PANEL CLEANER NOTIFICATION AND DATA LOGGING USING ESP32 AND ANDROID APPLICATIONSaputra, Yogihttp://repository.president.ac.id/xmlui/handle/123456789/89972022-08-22T08:22:53Z2021-01-01T00:00:00ZIOT BASED SINGLE AXIS SOLAR TRACKING SYSTEM WITH PANEL CLEANER NOTIFICATION AND DATA LOGGING USING ESP32 AND ANDROID APPLICATION
Saputra, Yogi
ABSTRACT
Environmentally friendly green energy is very much needed for the potential survival of the Planet. Global warming and loss of the ozone layer allow the temperature of the planet to increase and it is an ideal condition for solar panels as renewable energy. The dynamic solar panel is a type of solar panel fitted with two light-dependent resistor sensors so that the path of sunlight can be followed. This invention is very useful for maximizing the conversion of sunlight into electricity. In this final project, solar tracker has three excellent features. The first is to track real-time data daily displayed in the solar tracker android application and back up files on the Micro SD. Second, a reminder of the cleanliness of solar panels via android. This functionality uses a light-dependent resistor (LDR) sensor, an ambient temperature sensor, and a voltage sensor. Third, detecting ambient temperature around solar panel. The solar panels used are four solar panels with a 5 V and 200 mA capacity in pair. The prototype compared to static solar panels in six days trial. The first day differences between static and dynamic output voltage reach 4.05%, second day 9.62%, third day 9.68%, fourth day 6.56%, fifth day 8.77%, and last day 12.86%.
2021-01-01T00:00:00Z