This is good data but you forgot to add the energy from the electric motor's heat that will also be a plus to the calculation if you are looking at the hot side of the system. Bob
Hakan <[EMAIL PROTECTED]> wrote: Bob, Just wanted to add to your info about heat pump. Both heat pump and cooling pump (fridge or AC) are energy movers. They take energy from one side and move it to the other side. If you have movers with the absorption method, it takes about the same energy as the energy you move. With compressors, you can under the best conditions spend one third of energy to move it. This means that you move 3.1 times more energy than it takes to move it. Under the worst conditions you move the same energy as you spend on moving it. Absorption methods have been more or less abandoned, in favor of compression methods. A new birth and interesting application is AC and fridges with absorption method and driven by solar heating. The advantages is quite obvious and challenging, the more sun outside, the more capacity and need to move heat from the inside to the outside. Hakan At 01:58 PM 6/25/2003 -0700, you wrote: >I may be of some help with the geothermal definitions. To my knowledge, >there are two different usages for geothermal to any large degree. > >The first is the use of stored heat in the molten, (lava), from below the >earth's crust to heat and/or boil water for building heat and the >production of electricity. Most of this is in the Sierra range and runs >from the State of Washington to just short of Mexico at least on the west >coast. Of course there are other ranges as well and include Hawaii. > >The other definition of geothermal is the temperature of the earth's crust >and surface water, (above about 200 feet), used by the heating and air >conditioning industries as a heat source in the winter and as a heat >rejection source in the summer using a system called a water source heat >pump. The stability of the temperatures just under the ground close to the >surface are in essence a massive trombe wall with close temperature >stability and make the systems very energy efficient much better than >using air which is subject to larger temperature changes sometimes in only >a few hours. > >For those who do not understand a heat pump, a heat pump is nothing more >than an air conditioner running backwards. If you had a small window unit >and it was blowing cool air inside and hot air outside and you slid it out >of the wall and turned it around and then slid it back into the hole, the >name would change to a heat pump and the hot air would be blowing inside >and the cool air would be blowing outside. > >Hope this helps..... > >Bob > >murdoch <[EMAIL PROTECTED]> wrote: >I can think of at least two other sources: > >1. Nuclear Energy Generated on Earth. >2. Tidal Energy (derived from the Earth-Moon gravitational pull). I'm not >certain how the Sun may influence the stability of the Earth-Moon pull, so >it's >possible this is somewhat solar. I am skeptical of the environmental >benign-ness of Tidal energy, if harvested planet-wide for many decades or >centuries, I question whether it would harm the stability of the >Earth-Moon pull >and distance. > >Additionally, there is geothermal energy. It is not clear to me if this >is from >internal Earth G-forces, nuclear decay, or what. Yes, it could >additionally be >influenced by solar g-forces or I-don't-know-what, but I haven't heard the >source of geothermal sufficiently clarified. > >All that said, I agree entirely with your pointing out the primacy of the >Sun as >a source of energy for just about everything we do. > >MM > > > > >Remember, there is only one energy source available to this planet. All > of our attempts to find other sources like oil and gas ended up being > created by the same source; "THE SUN"!! > > > >Keep in mind that the more direct method we use to take this little > energy bit as it is delivered to us by the sun and get it into a usable > form for us to use will ultimately be the most environmentally benign way > to use it. Yahoo! Groups Sponsor Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- Do you Yahoo!? SBC Yahoo! DSL - Now only $29.95 per month! [Non-text portions of this message have been removed] ------------------------ Yahoo! Groups Sponsor ---------------------~--> Get A Free Psychic Reading! Your Online Answer To Life's Important Questions. http://us.click.yahoo.com/Lj3uPC/Me7FAA/ySSFAA/FGYolB/TM ---------------------------------------------------------------------~-> Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Biofuels list archives: http://archive.nnytech.net/ Please do NOT send Unsubscribe messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
