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  1. Sureshot

    Maximize solar absorption and convection AND minimize radiation

    I know that absorption without radiation and convection is impossible. I want to maximize absorption and convection but minimize radiation. The pipes are copper, 3" in diameter, and filled with glass marbles to increase heat capacity. I'm also aware that the absorptivity of copper is only...
  2. Sureshot

    External coating to maximize solar absorption and convection

    I want to maximize absorption and convection but minimize radiation. The pipes are copper, 3" in diameter, and filled with glass marbles to increase heat capacity. I'm aware that the absorptivity of copper is only .65, while cast iron is .95 However, cast iron in this instance won't do...

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