JAUE2024-050: A Simulation Study on IoT Device Effect of Energy Saving by Partition Curtains and Window Curtains

Abstract

In 2030, Japan aims to reduce greenhouse gas emissions from the household sector by 66%. However, a 2020 survey shows that air conditioners account for 27.5% of household energy consumption, stressing the need to enhance heating and cooling efficiency. The Ministry of Economy, Trade and Industry recommends using air-conditioning curtains and panel doors to improve efficiency, and IoT technologies, such as smart curtains, have emerged as effective energy-saving measures. This study aims to create a simulation model of a house with IoT window and partition curtains to simulate thermal environments and energy consumption. Initial measurements were taken at an apartment complex in Shinjuku, Tokyo, where IoT devices and curtains were installed. The thermal environment and cooling power consumption were recorded under various conditions. A simulation model was then created based on these measurements and tested under similar conditions. The simulation results matched the actual measurements, indicating the model's reliability. In the future, the model will be refined based on actual measurements taken in winter at the same location and under the same conditions. The model will then be used to identify the optimal control method for window curtains and partition curtains using IoT devices.