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  • VQkr's Avatar
    2021-Apr-09, 03:17 PM
    Yup, CA's population is centered in sunny LA, man. Los Angeles Prices: $0.219 / kWh electric $0.047 / kWh gas Portland, Oregon Prices...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-09, 02:07 AM
    Depends which California climate we are talking about. It has sixteen climate zones, that vary from subtropical to arid desert to mountains to...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-08, 11:26 PM
    You can keep repeating this but you'll be incorrect every time. Google "air cycle" or pick up a textbook; this is basic stuff. Air cycle heat pumps...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-08, 08:45 PM
    Yes, natural gas is being phased out in parts of the USA as well, for example California (regulations here tend to be fragmented by state). The...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-08, 08:06 PM
    Meh. An enormous amount of time and research has been put into making chillers and heat pumps efficient; I am skeptical that a guy in his garage is...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-08, 06:41 PM
    Air cycle systems typically employ turbines instead of an expansion valve because the energy otherwise lost in expansion "back work" is relatively...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-08, 09:50 AM
    In a counter flow heat exchanger, you can (and quite often do) get your hot fluid leaving temperature below the cold fluid leaving temperature. So...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-08, 01:52 AM
    Which of course, it won't be. Contaminants including water are an issue with open-cycle systems that a closed circuit heat recovery chiller doesn't...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-07, 09:36 PM
    That's an engineering tradeoff; it's not the direct fault of the fact that the heat pump takes advantage of a phase change. The maximum possible COP...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-07, 06:10 PM
    The Stirling cycle is reversible. It works equally well for work to heat transfer, and one as a heat pump indeed would have a COP over 1. It would...
    111 replies | 1437 view(s)
  • VQkr's Avatar
    2021-Apr-07, 11:52 AM
    People. What Kzb describes already exists, it is generically called a gas cycle or air cycle heat pump. They are not viable for comfort...
    111 replies | 1437 view(s)
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