• Chinese Journal of Ship Research
  • Vol. 19, Issue 5, 238 (2024)
Mingzhi LI1,2, Zhengjun YANG3, Yanping HE1,2,4, Hongsheng ZHANG5..., Rongbin TONG6 and Shuyang ZHANG5|Show fewer author(s)
Author Affiliations
  • 1State Key Laboratory of Ocean Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2School of Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240
  • 3CCCC Tianjin Dredging Co., Ltd., Tianjin 300457, China
  • 4Jiangsu Haixin Shipping Heavy Industries Co., Ltd., Haimen 226116, China
  • 5CCCC National Engineering Research Center of Dredging, Shanghai 200120, China
  • 6CHEC Dredging Co., Ltd., Shanghai 200136, China
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    DOI: 10.19693/j.issn.1673-3185.03336 Cite this Article
    Mingzhi LI, Zhengjun YANG, Yanping HE, Hongsheng ZHANG, Rongbin TONG, Shuyang ZHANG. Method for calculating and selecting minimum specific energy consumption working point of dredger[J]. Chinese Journal of Ship Research, 2024, 19(5): 238 Copy Citation Text show less
    [in Chinese]
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    Fig. 2. [in Chinese]
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    Fig. 3. [in Chinese]
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    Fig. 4. [in Chinese]
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    Fig. 5. [in Chinese]
    粒级粒径/mm
    d100.211
    d300.280
    d500.372
    d700.500
    d900.960
    Table 1. Sand gradations for the calculation case
    参数优化前优化后
    三泵两泵三泵
    水下泵功率/kW1 4891 6311 596
    转速/(r·min−1)292319312
    效率/%85.884.183.9
    1号舱内泵功率/kW3 4253 1453 224
    转速/(r·min−1)304325325
    效率/%85.584.784.2
    2号舱内泵功率/kW3 447611
    转速/(r·min−1)233117
    效率/%80.982.3
    总计排压/kPa2 0911 5731 849
    功率/kW8 3614 7765 431
    工作点流量/(m3·s−1)3.3422.3152.464
    产量/(m3·h−1)4 1162 4803 025
    单方能耗/(kW·h·m−3)2.0281.9261.789
    Table 2. Comparison of energy consumption before and after optimization
    Mingzhi LI, Zhengjun YANG, Yanping HE, Hongsheng ZHANG, Rongbin TONG, Shuyang ZHANG. Method for calculating and selecting minimum specific energy consumption working point of dredger[J]. Chinese Journal of Ship Research, 2024, 19(5): 238
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