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Recent content by MJFerreira

  1. MJFerreira

    Pump station Optimization

    Hi Quality Time Where were you able to download the electronic version. I am based in South Africa so ordering books from oversees isn't as straight forward with our unreliable postal services.
  2. MJFerreira

    Pump station Optimization

    Thanks for the feedback. I have been able to establish that the large pumps are running at approx 322kW. I have attached the pump curve for the 330kW pump (SDC 250), the pump curve for 37kW (ETA150-315) as well as a sketch of the layout. (A bit crude... apologies...elevations are indicated as...
  3. MJFerreira

    Pump station Optimization

    Hi I am trying to determine if an agricultural pumping scheme is running inefficiently and if there are energy saving design changes which can be implemented. I don't have much experience with pumping stations and if someone can point me in a direction to where I can learn more it would be...
  4. MJFerreira

    Storage Locker Ventilation

    Hi Im not 100% familiar with ashrea standards but you would need to look into opening size requirements for natural ventilation. In South Africa a space is considered naturally ventilated if the opening to outside (or ventilated space in your case) is not less than 5% of the floor area...
  5. MJFerreira

    Switching Mechanical Ventilation via Light Switch

    Hi I based in South Africa and our National Building regulations states the following for mechanical ventilation systems: "The artificial ventilation system shall not be connected to any artificial lighting system for the purpose of on/off control." I interpret this as "you cant switch a fan...

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