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Khasanah, Rizki Anisatul
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Civil Engineering, Building, Construction & Architecture Computer Science & IT Industrial & Manufacturing Engineering Mechanical Engineering

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CFD Analysis of Thermal Distribution and Airflow in a Confined Classroom: RoomE303, Sumatera Institute of Technology Khasanah, Rizki Anisatul; Drantantiyas, Nike Dwi Grevika; Ningsih, Titis Pajar; Situmorang, Zefanya Frandita; Bagaskara, Muhammad Fadli
Jurnal IPTEK Vol 29, No 2 (2025): December
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.iptek.2025.v29i2.8537

Abstract

This study evaluates the thermal comfort of Classroom E303 at the Sumatera Institute of Technology, a west-facing room exposed to high solar heat in a tropical climate. Air temperature and relative humidity were measured at 16 points under unoccupied conditions and used as boundary inputs for computational fluid dynamics (CFD) simulations developed with SketchUp and SolidWorks. Model validation using mean absolute percentage error (MAPE) and root mean square error (RMSE) showed good accuracy at 4.41% and 1.06 °C. Baseline analysis indicates that the thermal conditions approach the upper limit of the SNI 03-6572-2001 comfort standard, reflecting a warm indoor environment. A mist-based evaporative cooling scenario reduced temperature by 2.7 °C and increased relative humidity by 16%RH, demonstrating its potential to enhance comfort. The findings confirm that CFD is an effective tool for predicting indoor thermal performance and supporting passive, energy-efficient strategies in tropical educational buildings.
Co-Authors Bagaskara, Muhammad Fadli Drantantiyas, Nike Dwi Grevika Ningsih, Titis Pajar Situmorang, Zefanya Frandita