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Recent content by simple911

  1. simple911

    Super Efficient Chillers

    I have been reviewing some case studies, where projects have claimed that vsd chillers actually run more efficiently at lower capacities. Also considering sf weather data, wet-bulbs are low enough for condensing water temperature to reach 57 deg. I was just put onto this project and the...
  2. simple911

    Super Efficient Chillers

    Hi, let me add another piece of information. It's a vsd chiller.
  3. simple911

    Super Efficient Chillers

    This does sound like big business. I'm more familiar with kW/ton to be around 0.5. A project is claiming that given the geographical location (sf), the chiller never sees condenser ARI conditions 85 deg entering and 95 deg leaving. The project also claims an average condenser supply...
  4. simple911

    Super Efficient Chillers

    Just looking for some experienced feedback. Have you ever heard of a 500 ton chiller running at an efficiency of .15kw/ton? And theoretically, under what conditions would this be possible?
  5. simple911

    Correlation between CT fan power (VSD) and CT Range

    Can anyone help me out with this one. I'm trying to maximize and quantify fan power consumption on a cooling tower. How does air flow correlate with Twb, pump power and cooling tower range (tin-tout). The application is vsd on ct fans. Can someone please help me. I'm stuck.

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