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Erschienen in:
2020 | OriginalPaper | Buchkapitel
Space Heating Management for Solar Heating System with Underground Pit Storage
verfasst von : Xiaoxia Li, Zhifeng Wang, Jinping Li, Ming Yang, Yakai Bai, Longfei Chen
Erschienen in: Proceedings of the 11th International Symposium on Heating, Ventilation and Air Conditioning (ISHVAC 2019)
Verlag: Springer Singapore
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Abstract
The solar heating system coupled with seasonal thermal energy storage (STES) is a promising solution to solve the seasonal mismatch between the solar energy supply and heating demand. A pilot solar heating system integrating with a 3000 m3 underground pit seasonal storage (UWPS) was built in Hebei, China. A TRNSYS model was established to analyse a new space heating management coupling with the mature district heating methods considering the outlet temperature of the UWPS. The simulation results showed that on the basis of maintaining the set indoor temperature 18 ± 1 ℃, the application of proposed space heating management to the UWPS-solar heating system is good and the solar fraction is 85.6% at the mean heat load of 40 W/m2, with the management of the fluctuation of the heat source, ambient temperature and the heating load.