Tab Content
  • VQkr's Avatar
    2021-Apr-09, 03:17 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    Yup, CA's population is centered in sunny LA, man. Los Angeles Prices: $0.219 / kWh electric $0.047 / kWh gas Portland, Oregon Prices...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-09, 02:07 AM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    Depends which California climate we are talking about. It has sixteen climate zones, that vary from subtropical to arid desert to mountains to...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-08, 11:26 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-08, 08:45 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-08, 08:06 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-08, 06:41 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    Air cycle systems typically employ turbines instead of an expansion valve because the energy otherwise lost in expansion "back work" is relatively...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-08, 09:50 AM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-08, 01:52 AM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-07, 09:36 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-07, 06:10 PM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    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...
    see more
    111 replies | 1439 view(s)
  • VQkr's Avatar
    2021-Apr-07, 11:52 AM
    VQkr replied to a thread Heat Pump Question in Science and Technology
    People. What Kzb describes already exists, it is generically called a gas cycle or air cycle heat pump. They are not viable for comfort...
    see more
    111 replies | 1439 view(s)
No More Results
About VQkr

Basic Information

About VQkr
Publishable Name:
Send me newsletters
Alerts:
Send me alerts
Education Newsletter:
Send me education newsletters

Statistics


Total Posts
Total Posts
260
Posts Per Day
0.10
General Information
Last Activity
Today 09:55 AM
Join Date
2014-Feb-14
Referrals
0