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Recent content by zt2

  1. zt2

    Power wasted in Cenfrifugal Compressor / Is motor big enough?

    Thanks pmover for the rules of thumb. I don't normally have the luxury of getting to site when carrying out this type of modelling so they will come in handy in future to get a rough handle on whether we are likely to be power constrained. I also don't know the original design criteria for...
  2. zt2

    Power wasted in Cenfrifugal Compressor / Is motor big enough?

    The motor is directly connected I'm not sure whether there is a gearbox but I suspect there is and will see next week when I go offshore to the unit. I'm not sure of the bearing type. I am going to determine what the actual losses are when I go offshore by comparing the motor power...
  3. zt2

    Power wasted in Cenfrifugal Compressor / Is motor big enough?

    I'm reviewing the operation of an existing compression system for increased throughput and slighly altered molecular weights. One of my compressors has an absorbed power of 2185kW with a motor rating of only 2258kW. This compressor is compressing gas from approx 45barg to 145barg, the gas is...
  4. zt2

    Bypass of Silical Gel TSA, max. bypass determination

    Not sure how to model silica Gel units in HYSYS either. But you could use a standard refrigeration set up to achieve the same dew point as your plant gives. then just add bypass gas until you hit either the water or hydrocarbon dew point limits. Note that there is no stream property of dew...

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