TY - JOUR
TI - Analysis of thermal characteristics of building envelope structure for night storage heating
AU - Li Xiaodong
AU - Liu Jianfeng
AU - Bi Xin
JN - Thermal Science
PY - 2024
VL - 28
IS - 2
SP - 1347
EP - 1354
PT - Article
AB - In order to understand the thermal characteristics analysis of nighttime  thermal storage heating, the author proposes a study on the thermal  characteristics analysis of nighttime thermal storage heating of building  envelope structures. In some places, the writer will use an office room as a  research object. The main purpose of the experiment is to measure, compare  and analyze the surface temperature and heat flow rate of the room sample  volume under two conditions: constant power 24 hour heating and night  constant thermal power (12 hours) heating. In order to verify the accuracy  of the dynamic thermal process of the heating room, the indoor air time  variation will be performed along with the simulation results. Thermal  performance parameters and characteristics of building thermal envelope  heating effect of storage room were studied. The mathematical model of the  thermal dynamic process of the heating room was established using the heat  balance method and verified by experiments. According to the experiment,  when the heating time increases from 5-12 hours, the additional heating  consumption of the building heating system decreases by 500 Wh, and the  additional heating consumption decreases to 19.4. In addition, it is  important to change the heating time of the night-time packing model and the  total heat accumulation. In addition, external wall insulation is useful in  reducing additional heating consumption and building heating costs, but all  heat transfer between model blocks is low. As the weather changes and the  heat transfer coefficient of the external window increases, the additional  amount of heat consumption and the additional value of heat consumption for  heat storage of the building will increase. In the process of continuous  heating operation, the additional heat consumption of the building heating  system, the additional heat consumption gradually decreases, the heating  equipment changes per hour, and the total heat accumulation of the night  packing structure is important.