Evaluation of Energy Consumption in Highly Airtight and Insulated Homes and Heat Balance Simulation

Evaluation of the Effect of Construction Techniques and Insulation Construction Accuracy on the Thermal Performance of Detached Houses

Abstract

Energy conservation standards for detached houses in Japan are evaluated only based on skin performance and primary energy consumption at the time of design. So the effects of construction technology and the accuracy of adiabatic work have not yet been clarified. In this study, we quantitatively evaluate the effects of construction technology and accuracy of adiabatic construction by evaluating actual measurements of temperature and humidity and HEMS data from a model house and analyzing the heat balance simulation of a standard house model. The results show that the current standard and top-runner homes are heavily influenced by the construction technique and accuracy of adiabatic construction with more than 60% of the heat loss occurring during the defrost season.