Wahyuni, Aisa Indra (2016) Rancang Bangun Sistem Monitoring Laju Aliran Pada Venturimeter Dengan Menggunakan Sensor MPX2010DP Berbasis Arduino. Diploma thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Venturimeter merupakan alat primer dari pengukuran laju aliran yang berfungsi untuk mendapatkan beda tekanan, yang bekerja berdasarkan persamaan Bernoulli. Pada venturimeter terdapat 3 bagian utama yaitu inlet, throat, dan outlet. Dimana terjadi perbedaan tekanan antara inlet dan throat. Tekanan berkurang karena melewati suatu gangguan sebanding dengan laju aliran dan densitas fluida. Pada penelitian ini hanya merujuk pada mengetahui karakteristik venturimeter yang dirancang sebagai alat ukur laju aliran secara sekuensial. Model karakteristik suatu alat ukur bergantung pada perancangan alat yang dibuat. Oleh karena itu, baik tidaknya hasil pengukuran dan monitoring selain bergantung pada parameter meteorologi, juga dipengaruhi performa rancangan alat ukur/ monitoring yang terlibat, misalnya sensor dan perancangan plant. Pada penelitian ini telah dilakukan perancangan sistem pengukuran dan monitoring laju aliran pada venturimeter. Sistem ini terdiri atas sensor tekanan MPX2010DP, rangkaian amplifier yang menggunakan IC LM324, mikrokontroller Arduino Uno, serta display monitoring pada komputer melalui software Microsoft Visual Studio 2013. Monitoring dilakukan dengan 3 variasi pengukuran, yaitu tekanan, laju aliran, dan tekanan terhadap laju aliran. Berdasarkan hasil pengujian, didapatkan bahwa pada pengukuran laju aliran diperoleh nilai ketidakpastian terbesar adalah Uexp ± 0.0591LPM dengan tingkat kepercayaan 95%. Alat ukur laju aliran ini memiliki range yang kecil antara 2.7106-2.7492 LPM, sensitivitas 1.2138 LPM, akurasi 99.22%, dan error sebesar 0.78%.
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Venturimeter is a primary device in flowrate measurement. It is used to obtain differential pressure, which based on Bernoulli equation. In venturimeter, there are three main parts, i.e. inlet, throat, and outlet. Where, differential pressure occurs between inlet and throat. Pressure decreases because fluid flow through a restriction proportional with flowrate and fluid density. In this research, we concern to knowing venturimeter characteristics that designed as a flowrate measurement device sequencially. Characteristic model of a measurement device depend on the device design that have been made. Therefore, good performance of measurement and monitoring either depend on metrology parameter, or on design performance of a measurement device/monitoring, for example sensor and plant design. In this research, it has been constructed a measurement and monitoring system to provide flowrate on venturimeter. This system consists of a pressure sensor MPX2020DP, amplifier circuit using IC LM324, microcontroller Arduino Uno, and monitoring display on computer using Microsoft Visual Studio 2013 software package. Monitoring mechanism has been done for 3 variations of measurements, i.e. pressure, flowrate, and pressure on flowrate. Based on the results of experiment, it has shown that extreme uncertainty of flowrate measurement is Uexp ±0.0591 LPM with 95% of confidence level. This flowrate measurement also has shown that it has small range between 2.7106-2.7492 LPM, sensitivity 1.2138 LPM, accuracy 99.22%, and error 0.78%.
| Item Type: | Thesis (Diploma) |
|---|---|
| Additional Information: | RSF 681.28 Wah r-1 3100017068892 |
| Uncontrolled Keywords: | Laju aliran, Monitoring, Pengukuran, Venturimeter |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ213 Automatic control. T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK7871.674 Detectors. Sensors |
| Divisions: | Faculty of Industrial Technology > Physics Engineering > (D3) Diploma 3 |
| Depositing User: | Yeni Anita Gonti |
| Date Deposited: | 04 Aug 2020 08:18 |
| Last Modified: | 04 Aug 2020 08:18 |
| URI: | http://repository.its.ac.id/id/eprint/76880 |
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