Rancang Bangun Sistem Pengendalian Temperature dengan Manipulasi Fan Speed pada Sistem Pengujian Nanofluida

Ramadhoni, Nandina Zalsabila (2026) Rancang Bangun Sistem Pengendalian Temperature dengan Manipulasi Fan Speed pada Sistem Pengujian Nanofluida. Other thesis, Institut Teknologi Sepuluh Nopember.

Text 2042221059-Undergraduate_Thesis.pdf - Accepted Version Restricted to Repository staff only Download (6MB) | Request a copy

Abstract

Nanofluida merupakan fluida kerja yang terbentuk dari pencampuran fluida dasar (air, etilen glikol atau oli) dengan partikel nano berukuran antara 1-100 nm yang bertujuan untuk meningkatkan konduktivitas termal dan performa perpindahan panas dibandingkan fluida konvensional. Salah satu pengaplikasian nanofluida adalah pada sistem penukar panas (heat exchanger). Meskipun nanofluida mampu meningkatkan kinerja termal, pengaturan temperature outlet pada sistem heat exchanger tetap memerlukan sistem pengendalian yang baik agar diperoleh respon yang stabil dan terkendali. Pada penelitian ini dilakukan rancang bangun sistem pengendalian temperature outlet dengan manipulasi fan speed pada sistem pengujian nanofluida. Pengaturan kecepatan kipas dilakukan menggunakan motor servo yang dihubungkan dengan mekanisme gear dan potensiometer sebagai umpan balik posisi. Sistem kendali menggunakan pengendali PID (Proportional, Integral, Derivative) yang diimplementasikan pada software LabVIEW, dengan metode tuning Ziegler Nichols1. Pengujian dilakukan menggunakan fluida air dan nanofluida ZnO@TiO2 0,05%. Hasil pengujian menunjukkan bahwa penggunaan nanofluida menghasilkan performa termal yang lebih baik dibandingkan fluida air, ditandai dengan peningkatan selisih temperature (∆T) yang lebih besar. Pada pengujian karakteristik termal menggunakan nanofluida ZnO@TiO2 0,05% lapis 1 hingga diperoleh ∆T sekitar 15℃, sedangkan pada pengujian open loop menggunakan nanofluida lapis 3 diperoleh ∆T sekitar 8-9℃. Analisis respon dinamik menunjukkan bahwa pengendali PID memberikan performa terbaik dibandingkan pengendali P dan PI, dengan settling time yang lebih singkat dan error steady state yang sangat kecil. Kombinasi penggunaan nanofluida dan pengendali PID terbukti mampu meningkatkan kestabilan dan kecepatan respon pengendalian temperature outlet
============================================================
Nanofluids are working fluids formed by dispersing nanoparticles with sizes ranging from 1–100 nm into base fluids such as water, ethylene glycol, or oil, with the aim of enhancing thermal conductivity and heat transfer performance compared to conventional fluids. One application of nanofluids is in heat exchanger systems. Although nanofluids are capable of improving thermal performance, controlling the outlet temperature of a heat exchanger still requires an effective control system to achieve stable and well-regulated responses. In this study, a temperature outlet control system was designed and implemented by manipulating the fan speed in a nanofluid experimental setup. Fan speed regulation was achieved using a servo motor connected to a gear mechanism and a potentiometer as position feedback. The control system employed a Proportional–Integral–Derivative (PID) controller implemented in LabVIEW software, with parameter tuning based on the Ziegler–Nichols first method. Experiments were conducted using water and ZnO@TiO₂ nanofluid at a concentration of 0.05%. The experimental results indicate that the use of nanofluid provides better thermal performance than water, as indicated by a larger temperature difference (ΔT). In the thermal characteristic test using ZnO@TiO₂ 0.05% nanofluid with a single layer, a ΔT of approximately 15 °C was obtained, whereas in the open-loop test using a three-layer nanofluid configuration, the resulting ΔT was approximately 8–9 °C. Dynamic response analysis shows that the PID controller outperforms the P and PI controllers, yielding shorter settling times and very small steady-state errors. The combination of nanofluid and PID control is proven to enhance the stability and response speed of the outlet temperature control system.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	Nanofluida, Kontrol PID, Motor Servo, LabVIEW, Nanofluid, PID Control, Servo Motor, LabVIEW
Subjects:	T Technology > TJ Mechanical engineering and machinery > TJ212 Control engineering systems. Automatic machinery (General) T Technology > TJ Mechanical engineering and machinery > TJ263 Heat exchangers T Technology > TJ Mechanical engineering and machinery > TJ935 Pipe--Fluid dynamics. Tubes--Fluid dynamics T Technology > TJ Mechanical engineering and machinery > TJ223 PID controllers
Divisions:	Faculty of Vocational > Instrumentation Engineering
Depositing User:	Nandina Zalsabila Ramadhoni
Date Deposited:	03 Aug 2026 03:13
Last Modified:	03 Aug 2026 03:13
URI:	http://repository.its.ac.id/id/eprint/142043

Actions (login required)

View Item