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VGU RESEARCH REPOSITORY


Please use this identifier to cite or link to this item: https://epub.vgu.edu.vn/handle/dlibvgu/2173
Title: Passive design in tropical climate: a practical guide for residential houses in Phan Rang – Thap Cham city
Authors: Thuong Nguyen Thi Quynh 
Keywords: Tropical climate;Energy analysis;Passive design;Building information model
Issue Date: 2024
Abstract: 
Housing in Vietnam is still a major concern and has developed without proper management. Moreover, sustainability and energy performance of buildings have become issues of broad interest to professional architects and engineers. In line with the national strategy for climate change, aiming to achieve net-zero emissions by 2050 and promote sustainable development in urban and architectural design, this thesis aims to develop passive design techniques that harness natural elements for energy efficiency and thermal comfort.

With a focus on the tropical climate, the study conducts research in Phan Rang–Thap Cham (PR-TC), a city with harsh climatic conditions characterised by hot, windy, and dry weather with high temperatures. Through a qualitative study of vernacular housing in the region, which is well adapted to local climatic characteristics, the study proposes a list of passive design techniques for the area, including solutions that can reduce energy consumption and relieve the burden on mechanical systems while maintaining living comfort for occupants.

The study uses Autodesk Revit and Insight for modelling and simulation to explore design alternatives through a practical case study. The results from Insight optimisation show that refining building envelope components—specifically the window-to-wall ratio of west-facing walls and wall construction—can reduce energy costs from 30 USD/m² per year to 24.5 USD/m² per year, and significantly reduce the EUI, with a reduction rate of 18.3% compared to the baseline design.

By applying material alternatives to calculate CO₂ emissions for embodied carbon, insulated concrete form is proposed as the external wall material, which can save 33% of CO₂ emissions compared to fired clay bricks. The results of the BIM-based analysis provide a basis for refining building elements in line with passive design strategies and sustainability goals, thereby improving overall performance.
URI(1): https://epub.vgu.edu.vn/handle/dlibvgu/2173
Rights: Attribution-NonCommercial 4.0 International
Appears in Collections:Sustainable Urban Development (SUD)

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