Recent content by idp

  1. I

    3CR12 Steel for Power Transformer

    https://drive.google.com/file/d/0B4jv0YTGHYuoMWh5am5fenpLUTNXek9lclhUUEtGZlRmVWNF/view?usp=sharing
  2. I

    3CR12 Steel for Power Transformer

    I live in a highly corrosive coastal environment, a major problem we have is rusting of all components of our power transformers. I have investigated the use of 3CR12 (or equivalent) for the main tank (between 31,5MVA up to 63 MVA 132kV/22 or 11kV) (YyN0) in order to prevent rust problems. It...
  3. I

    Water Temperature Difference with Depth

    If my assumption in the above is true for the solar system, then the knowing position of the temp sensor in the tank becomes critical because the electronic control unit settings will limit the circulation of the heated water if the "desired temp" is reached. If the sensor is at the top of the...
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    Water Temperature Difference with Depth

    The system I have comprises 18 evacuated tubes with separate tank/geyser with backup electric element. The dc electric pump circulates the water by sucking out the cold water at the bottom of the tank and pushing the hot water into the top. Whilst the solar system is working (ie no electric...
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    Water Temperature Difference with Depth

    Thanks for the replies, unfortunately none of them really address my question. Considering that the take-off point is at the top of the geyser, and on occasion while having a shower the water will become cold, (150l tank) indicating that within possibly 20 to 30l of water the temperature...
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    Water Temperature Difference with Depth

    I'm trying to find out if the water temperature in a hot water tank (household solar system) varies substantially from the top temp to the bottom. In essence in a stable system, what is the difference in temperature per centimeter drop in height of water in the tank? I assume that the tank size...
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