Rancang Bangun Monitoring System Flow Rate, Pressure Drop, Dan Temperature Pada Heat Exchanger Dengan Nanofluida Sebagai Fluida Kerja

Saman, Muhammad Akmal (2025) Rancang Bangun Monitoring System Flow Rate, Pressure Drop, Dan Temperature Pada Heat Exchanger Dengan Nanofluida Sebagai Fluida Kerja. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Pada penelitian ini membahas sistem monitoring real-time untuk mengamati parameter
fluida berupa flow rate, pressure drop, dan temperature pada sistem heat exchanger dengan
menggunakan air, nanofluida ZnO, dan nanofluida ZnO@TiO₂ sebagai fluida kerja. Tujuan dari
sistem ini adalah untuk mengetahui performa perpindahan panas dan karakteristik hidraulik dari
berbagai jenis fluida, serta mengembangkan sistem monitoring berbasis Arduino Mega 2560
dan antarmuka LabVIEW yang mampu menampilkan serta menyimpan data secara langsung.
Pengujian dilakukan dengan memvariasikan temperature fluida 35°C, 45°C, dan 55°C,
kecepatan aliran udara menggunakan kipas 8 m/s, 9 m/s, dan 10.5 m/s, serta bukan valve untuk
memengaruhi laju alir dan tekanan. Validasi sensor dilakukan menggunakan metode
pembanding terhadap alat ukur yang terkalibrasi/validator, dengan hasil error pengukuran
berada dalam rentang yang dapat diterima. Hasil eksperimen menunjukkan bahwa air memiliki
performa perpindahan panas tertinggi pada rentang operasi tersebut yang tidak terlalu jauh,
sehingga dengan tcout mendekati Tin, maka ΔTLMTD mengecil, dan hal ini dapat menurunkan
nilai Q meskipun nanofluida secara data punya U lebih tinggi dari pada air, ditandai dengan
nilai ΔT nanofluida lebih tinggi daripada air. Peningkatan suhu menyebabkan penurunan
viskositas fluida dan tekanan, namun meningkatkan efisiensi perpindahan panas. Sistem
monitoring yang dikembangkan mampu mencatat data secara stabil dan mendukung analisis
performa secara dinamis. Sistem ini diharapkan dapat menjadi acuan dalam pengembangan
sistem kendali dan pemantauan perpindahan panas di laboratorium atau aplikasi skala industri
kecil.
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This study discusses the development of a real-time monitoring system designed to
observe fluid parameters such as flow rate, pressure drop, and temperature within a heat
exchanger system, utilizing water, ZnO nanofluid, and ZnO@TiO₂ hybrid nanofluid as working
fluids. The primary objectives of the system are to evaluate the heat transfer performance and
hydraulic characteristics of various fluids, as well as to develop a monitoring platform based
on Arduino Mega 2560 integrated with a LabVIEW interface capable of displaying and
recording data in real time. Experimental tests were conducted by varying the fluid temperature
at 35°C, 45°C, and 55°C, adjusting air flow velocities using fans at 8 m/s, 9 m/s, and 10.5 m/s,
and modifying valve openings to influence both flow rate and pressure. Sensor validation was
performed by comparing sensor readings with calibrated measurement instruments (validators),
with the resulting measurement errors falling within acceptable limits. The results indicate that,
under the tested conditions, water exhibited the highest heat transfer performance. However,
as the outlet temperature Tout of water approached its inlet temperature Tin, the resulting
logarithmic mean temperature difference ΔTLMTD decreased, which reduced the calculated heat
transfer rate (Q), despite nanofluids demonstrating higher overall heat transfer coefficients (U).
This was evidenced by higher ΔT values for the nanofluids compared to water. Additionally,
increasing fluid temperature was found to reduce viscosity and pressure, while improving heat
transfer efficiency. The developed monitoring system successfully recorded data in a stable
manner and supported dynamic performance analysis. This system is expected to serve as a
reference for future development of heat transfer control and monitoring systems in laboratory
settings or small-scale industrial applications.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Heat Exchanger, Nanofluida, Sistem Monitoring, Temperature, Flow Rate, Pressure Drop Heat Exchanger, Nanofluid, Monitoring System, Pressure Drop, Flow Rate.
Subjects:	Q Science > QC Physics > QC100.5 Measuring instruments (General) Q Science > QC Physics > QC151 Fluid dynamics Q Science > QC Physics > QC271 Temperature measurements Q Science > QC Physics > QC320 Heat transfer
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Muhammad Akmal Saman
Date Deposited:	04 Aug 2025 07:42
Last Modified:	04 Aug 2025 07:42
URI:	http://repository.its.ac.id/id/eprint/126603

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