ABSTRACT
ABSTRACT A Cambodian traditional house is a building that comprises various sizes and heights of the area, that is specifically built in the purpose of airflow and light. Although the traditional building styles are followed, due to the small size opening window, the indoor environment is not so good. It does not have enough sunlight and weak airflow; so there should be some particular changes of the design characteristics to enhance air movement and to provide enough sunlight. Consequently, this paper is to study the existing traditional houses in Cambodia through the investigation and the energy consumption in the houses is analyzed using the principle of passive house design. Improvements in energy saving of residential traditional houses detailing were put forward. Furthermore, the economic advantage of the proposed measurements was validated by comparison between the proposed passive house and traditional house through the analysis using simulation software. Therefore, an analysis through the simulation software, DesignBuilder, and case studies are used for the study on lighting and energy consumption on cooling load. According to the simulation result, the proposed house with bigger area needs less energy consumption than the case study; moreover, the proposed house also has better sun-light than the case study according to the GreenStar Credit IEQ4 Report after the simulation. As data collection through the Temperature Data Logger (TDL) in Cambodia is time-consuming, so the study is shortened to one month study which might be in-sufficient for a whole year result. Moreover, since the available time of the study is in rainy season, future research should study dry season. Nevertheless, the proposed house design shows a good result in DesignBuilder simulation software. This study can provide reference on energy saving of traditional houses on lighting with renewable materials in ursban low-income families in Cambodia for further research.
