Study on Transient Process of Different Arrangement Forms of Ecological Unit
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Abstract:
In some constructed large and medium hydropower stations, in order to protect the ecological environment of downstream, a new water pipeline is usually developed through the fork tube to ensure the downstream ecological flow. An ecological unit can be installed in the new water pipeline to generate electricity. There are two arrangement forms for the ecological unit: fork tube located behind the surge tank and in front of the surge tank. For the first arrangement form, the two units share the same surge tank, resulting in large hydraulic disturbance between the ecological unit and original unit. The load change of the original unit can have greater impact on the ecological unit than that of the ecological one on the original one. For the latter arrangement form, each unit has its own surge tank, resulting in insignificant hydraulic disturbance between the two units. The two units can operate independently.
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