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  1. R22Tailrotor

    Plumbing Calculation Tool

    I could sure use some sizing help. I have a three story home with full bathrooms on each floor. The upper story has a jacuzzi tub. The piping is 3/4 inch and it seems that we have a pressure problem when more than one faucet is operating. We are on a well and the pressure switch is set for 30-50...
  2. R22Tailrotor

    Biomass: rice hulls waste-to-energy power plant

    The problem with burning rice hulls is the emissions of crystalline silica, a know cancer causing agent. There is no way to filter out all the below 2.5 micron particles.
  3. R22Tailrotor

    Inrush Current

    I did not know that there was a high inrush current in transformers. Being an iductive device I believe the inrush current is low. NO???
  4. R22Tailrotor

    Hot water pipe insulation

    I need some help on calculating the insulation specifications on a domestic hot water re-circulating system. I have 200 feet of 3/4 inch copper pipe. Can the insulation be specified based on a heat loss that is a percentage of the hot water used. In other words insulate so that perhaps 5% of the...
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