Actual thermal and ventilation environment fieldwork test analysis of sun space design strategies in a net-zero house

摘要

Passive design has widely been identified as one of the most economical and effective strategies for reducing energy demand. This research is based on the physical surveillance, and has adopted physical environment fieldwork test and data analysis methods to evaluate the effectiveness of passive space design strategies and their influence on the main body spaces. The project case is a net-zero house that relies completely on solar energy to supply its energy consumption. Its passive design strategy embody sunspace at the building south facade. The experiment tested several physical parameters such as temperature, humidity, wind speed, CO_2 concentration, and PMV index in winter, summer and trans-seasons to evaluate its effectiveness on thermal and ventilation environment. The research results yielded quantified data regarding the impact levels of the three passive spaces, and allowed researchers to summarize their advantages and disadvantages and provide some possible improvements.