Open AccessStudy on night heating design of solar thermal storage system in winter based on CFD
Author(s) -
Yu Zhang,
Xue Wang,
Ruoyu Wang
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/766/1/012091
Subject(s) - environmental science , electromagnetic coil , thermal , meteorology , passive solar building design , heating system , computational fluid dynamics , thermal energy storage , solar energy , cold winter , nuclear engineering , materials science , mechanical engineering , aerospace engineering , engineering , thermodynamics , electrical engineering , physics
With the gradual maturity of solar heating system, more and more houses are equipped with solar heating equipment for heating. In view of the heating effect of the movable plate house, this paper selects the coldest monthly average temperature of -15 °C in Jinan as the external condition, designs the wall embedded heating coil with water as the medium, and uses CFD simulation software to establish the geometric model of the temperature distribution of the house in 7 hours after 10 pm. The simulation results show that when the overall wall is covered with heating coil, the nighttime temperature of the indoor personnel rest area is above 7 °C without considering the heat transfer effect between the personnel themselves and the internal space of the house. If the wall is covered with heating coil, the indoor average temperature will be no less than 12 °C. Solar energy contribution rate can reach more than 43.15 %, energy saving effect is obvious.