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Recent content by yonghong0505

  1. yonghong0505

    Positive displacement pumps in series or parallel

    Thanks all for the valuable information. Appreciated.
  2. yonghong0505

    Positive displacement pumps in series or parallel

    Hi all, Good days. I am getting info that for centrifugal pump, Theoretically, centrifugal pump in series= H1+H2 and Q1=Q2 centrifugal pump in parallel = Q1+Q2 and H1=H2 I understand that centrifugal pump may different from positive displacement pump. Are the positive displacement pump apply...
  3. yonghong0505

    Inhibited seawater ??

    Hi All, I am fresh application engineer for pump services. One of my customer stated that their medium to be pumped is inhibited seawater? I try to google search for this but failed. Can anyone please guide me what is actually define as inhibited seawater? what is the different between...
  4. yonghong0505

    How to create a subsytems in the Aspen?

    Hi everybody! I am currently running a simulation on Aspen and one problem is faced. The problem is the process flow diagram is too messy and complicated as i am doing a project about processing petrochemical product. As in the first part which is refinery progress, every unit such as...

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