RANCANG BANGUN ALAT PRAKTIKUM HEAT EXCHANGER TIPE COMPACT TUBE-BANKS

ERMANSYAH, MOCHAMAD FUAD (2017) RANCANG BANGUN ALAT PRAKTIKUM HEAT EXCHANGER TIPE COMPACT TUBE-BANKS. Undergraduate thesis, Institut teknologi Sepuluh Nopember.

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Abstract

Perkuliahan di jurusan Teknik Mesin ITS berdasarkan pada laboratory based education. Laboratorium merupakan tempat pengembangan mahasiswa untuk menerapkan ilmu yang telah didapat pada proses belajar-mengajar. Laboratorium Termodinamika dan Perpindahan Panas merupakan laboratorium yang memfasilitasi mahasiswa untuk melakukan pengujian dan penelitian alat penukar panas (heat exchanger). Laboratorium seharusnya menyediakan berbagai alat pengujian heat exchanger. Saat ini di jurusan Teknik Mesin ITS masih belum tersedia perangkat praktikum uji performa compact heat exchanger. Oleh sebab itu diperlukan sebuah rancang bangun perangkat uji performa compact heat exchanger guna praktikum dan penelitian mahasiswa. Rancangan alat praktikum dibagi menjadi beberapa bagian yaitu rancangan instrumen pengukur fenomena fisik dengan data akuisisi arduino, windtunnel, kalibrasi instrumen, pengujian kebocoran heat exchanger dan spesifikasi peralatan penunjang operasi kerja. Pengujian heat exchanger disesuaikan dengan standar SNI 09-0605-1989 “Cara uji kemampuan melepas panas radiator”. Pengujian dilakukan dengan memvariasikan kecepatan aliran udara di dalam terowongan angin sebesar 3.2 m/s, 1,6 m/s dan 0,8 m/s serta debit thermal oil sebesar 20 lpm, 15 lpm, dan 12 lpm pada suhu konstan 80oC. Analisis performa heat exchanger menggunakan metode Number of Unit Transfer. Dari hasil perancangan didapatkan sebuah perangkat windtunnel dengan dimensi panjang 1,2 meter, tinggi 0,5 meter, dan lebar 0,5 meter. Perangkat praktikum compact heat exchanger menggunakan sistem data akuisisi arduino dengan termokopel tipe K sejumlah 24 buah sebagai sensor suhu. Hasil pengujian heat exchanger didapatkan besar perbedaan laju perpindahan panas antara aliran fluida panas dan dingin tidak lebih dari 10%, nilai perpindahan panas terbesar pada variasi debit oli 20 liter/menit dengan kecepatan udara 3,2 m/s yaitu sebesar 4,29 kW, nilai overall heat transfer coefficient terbesar pada variasi debit oli 20 liter/menit dengan kecepatan udara 3,2 m/s yaitu sebesar 111,13 W/K, effectiveness tertinggi pada variasi II yaitu sebesar 17,1 %, nilai pressure drop terbesar aliran oli dan udara pada variasi debit oli 20 Liter/menit dan kecepatan udara 3,2 m/s yaitu sebesar 4,3 kPa dan 20 Pa. ============================================================================================ Lectures at the Department of Mechanical Engineering ITS based on laboratory based education. Laboratory is developing a student to apply the knowledge that has been gained in the teaching-learning process. Laboratory of Thermodynamics and Heat Transfer is a laboratory that facilitates students to do the testing and research of heat exchangers (heat exchanger). Laboratory testing should provide a variety of heat exchangers. Currently in the Department of Mechanical engineering of ITS is still not available test lab device performance compact heat exchanger. Therefore necessary a plan to build the test device performance compact heat exchangers for student practicum and research . The design device lab is divided into several parts, namely the design of instruments measuring physical phenomena with data acquisition arduino, windtunnel, instrument calibration, leak testing heat exchangers and equipment specifications supporting work operations. Testing heat exchanger adapted to SNI 09 -0605-1989 standard "test method for removing the ability of the heat radiator". Testing is done by varying the speed of the airflow in a wind tunnel of 3.2 m/s, 1.6 m/s and 0.8 m/s as well as thermal oil flow of 20 lpm, 15 lpm and 12 lpm at a constant temperature of 80° C. Analysis of the performance of the heat exchanger using the Number of Transfer Unit. From the results obtained a device windtunnel design with dimensions of 1.2 meters long, 0.5 meters high and 0.5 meters wide. Lab devices compact heat exchanger using a data acquisition system with thermocouple type K arduino number of 24 pieces as a temperature sensor. The test results obtained heat exchanger large differences in rates of heat transfer between hot and cold fluid flow is not more than 10%, the largest value of heat transfer on the variation of discharge of oil 20 liters / min with air velocity of 3.2 m/s is equal to 4.29 kW, the value of overall heat transfer coefficient of variation biggest oil discharge 20 liters / min with air velocity of 3.2 m / s in the amount of 111.13 W / K, the highest effectiveness in the second variation in the amount of 17.1%, the biggest drop of the pressure value of oil flow and air in the oil discharge variation 20 Liter / min and air speed of 3.2 m / s is equal to 4.3 kPa and 20 Pa.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Perangkat uji compact heat exchanger, uji performa, eat exchanger compact test device, test performance.
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Industrial Technology > Mechanical Engineering > (S1) Undergraduate Theses
Depositing User: MOCHAMMAD FUAD ERMANSYAH
Date Deposited: 24 Feb 2017 09:13
Last Modified: 24 Feb 2017 09:13
URI: http://repository.its.ac.id/id/eprint/2476

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