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CFD Simulation on the Natural Ventilation and Building Thermal Performance
Ratih Widiastuti (a*c); Muhammad Ismail Hasan (bc); Chely Novia Bramiana (bc); Previari Umi Pramesti (c)

(a*) Faculty of Integrated Technologies, Jalan Tungku Link, Gadong, BE1410, Brunei Darussalam

(b) Department of Architecture, Faculty of Built Environment, University of Malaya, 50603, Kuala Lumpur-Malaysia

(c) Architectural Design, Vocational School, Diponegoro University, Jalan Prof. H. Soedarto S.H, Tembalang-Semarang, 50275, Indonesia


Abstract

The types of window, either permanent or impermanent will influence the building thermal profiles. Natural ventilation is one of technique to create passive cooling design in the building. It can improve the quality of indoor air, thermal comfort and reduction of energy consumption for air conditioning. In this present work, a study on the type of natural ventilation and the effect to thermal building performance was conducted. There are two types of natural ventilation as main variable in this study, top hung window and jalousie window. To develop the study, a simulation used Computational Fluid Dynamics (CFD) also conducted. One natural ventilation as outlet also added in the simulation. Based on the data measurement and computer simulation, jalousie window can provide better thermal performance. The range of difference between indoor air temperature on the chamber with jalousie window and chamber with top hung window is 0.2°C to 0.5°C, showing greater heat loss. The average of amount on the indoor air flow also was found 0.0317 m/s higher in the chamber with jalousie window. Particularly in the inlet, it was clear that the velocity of incoming air flow is faster and significantly allowed greater air with lower temperature entered from outside to inside.

Keywords: building thermal performance; CFD simulation; natural ventilation; window types

Topic: Energy Conservation and Efficiency

Link: https://ifory.id/abstract/mMbQJTUnzhCx

Conference: The 1st International Conference on Environment, Sustainability Issues and Community Development (INCRID 2019)

Plain Format | Corresponding Author (Muhammad Ismail Hasan)

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