Blar i forfatter "Cui, Ping"

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    • Heat extraction capacity and its attenuation of deep borehole heat exchanger array 

      Zhang, Fangfang; Yu, Mingzhi; Sørensen, Bjørn R.; Cui, Ping; Zhang, Wenke; Fang, Zhaohong (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-01)
      A model is proposed to analyze the heat transfer of deep borehole heat exchanger (DBHE)arrays. Based on this, a dimension reduction algorithm is proposed for the numerical simulation of heat transfer of DBHE arrays, which can improve calculation speed by several orders of magnitude compared with that by the CFD software. An index of heat extraction capacity (HECI) is adopted to evaluate the heat ...

    • Ventilation and environmental control of underground spaces: A short review 

      Li, Angui; Kosonen, Risto; Melikov, Arsen; Yang, Bin; Olofsson, Thomas; Sørensen, Bjørn Reidar; Zhang, Linhua; Cui, Ping; Han, Ou (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-13)
      More and more underground spaces were used in 21st century because of rapid urbanization, traffic problems, etc. Underground city, metro, tunnel, mine, industrial and agriculture engineering, civil air defence engineering need large underground spaces. Underground spaces with different thermal, ventilation and lighting environments may cause comfort, health and safety problems. Concrete problems ...