แนวทางในการสร้างแบบประเมินค่าการประหยัดพลังงานในอาคารพักอาศัย / อุษณีย์ มิ่งวิมล = An approach to formulate energy conservation evaluation index in residential buildings / Usanee Mingvimol
Aimed at seeking variables that influence the use of energy in residential buildings and then create an energy conservation evaluation index for residential buildings which can be used as a tool to identify the energy-conservation potential of residential buildings. The procedures for evaluation energy-conservation values in residential buildings consist of studying and compiling information on architectural design for energy conservation suitable for the hot-humid climate of Thailand, and surveying and analyzing the energy use of residential buildings by using detached houses as a case study. Since the analysis of the energy use in many buildings requires a common rule for comparison, in this case the interior condition has been set to be within comport zone all the time for the propose. The grouping of variables that influence the use of energy in residential buildings according to different types of energy use can be divided into three components, namely, variables related to the use of air-conditioning systems, variables related to the use of lighting systems and variables related to the use of electrical appliances. According to the energy use analysis of an energy-efficient house designed by Dr. Soontorn Boonyatikarn, the use of energy for air-conditioning systems accounts for approximately 75 percent, that of the lighting systems accounts for approximately 10 percent and that of electrical appliances accounts for approximately 15 percent. The weightings of the variables that influence the use of energy are analyzed by a computer program along with additional studies from other research papers and documents to obtain the weightings of variables which will be used to formulate the energy-conservation evaluation index. From the results of the study, the components with the greatest influence on the use of energy in residential buildings are those which create the cooling load of the building which can be divided into four groups, namely, the building envelope variable, the building form variable, the types of electrical equipment and environment around the building, respectively. According to the experimental evaluation index created to evaluate the potential to save energy using conventional construction houses, energy-efficient houses and traditional Thai houses as case studies, detached house which represents houses in general cumulate 38.1 points of the total evaluation score, the second tier of energy-conservation potential which is quite low while energy-efficient house achieves 90.7 points, the fifth tier of energy-conservation potential which is the highest one. Traditional Thai houses gain 33.8 points which is still considered to be in the second tier similar to general house. The result from the index can be applied to evaluate the energy conservation potential of residential buildings without many complications. This evaluation index which is the result of this research is suitable for evaluating detached houses located in Bangkok Metropolitan and its suburbs. In the future, if design technology for energy conservation improves, there should be an improvement before further application
