Jack, I think you went the wrong way with the total BTU inputted. should be 36 wh X ~3 btu/w = ~100 btu. ken On Thu, Oct 4, 2012 at 5:13 AM, Jack Cole <jcol...@gmail.com> wrote:
> I think I have pretty high heat loss as it is open to the air. Here are > some pretty conservative calculations assuming no heat loss and complete > conversion of electrical input to heat. Please check my math / conversions > to see if I am doing this correctly. > > 1 BTU is the amount of heat needed to raise 1 lb of water 1 degree F. > > A power supply at 12 V and 1 amp gives 12 wh. > > 1 BTU = .293 wh (see wikipedia BTU) > > A temperature change of 60F for 3.718 oz requires the following BTUs. > > 3.178 oz / 16 oz = .199 > > 60 * .199 = 11.92 BTUs required to change the temp 60F assuming no heat > loss. > > Running 3 hours gives a total input of 36 wh. So convert 36 wh to BTU. > > 36 * .293 = 10.5 BTUs total input > > I calculate COP by BTUs required to raise the temp 60F / input BTU. > > COP = 11.92 / 10.5 = 1.135 > > Have I done the correct process with these calculations? > > On Wed, Oct 3, 2012 at 10:32 PM, David Roberson <dlrober...@aol.com>wrote: > >> The temperature the bath reaches depends upon the input power you deliver >> to the system as well as any excess heat that may be generated by the >> electrodes and the ability of your system to trap heat. If you are >> delivering 12 watts to your device and getting a temperature rise of 60 F >> from ambient then you must have relatively low heat loss unless of course >> you are seeing lots of heat being generated. >> >> The maximum temperature seen thus far with my present experimental >> setup was 130 F with an ambient of 74 F. I had 28.7 watts of drive at that >> time. I am using a large electrolyte bath that is open to the air and one >> benefit is that I can dissipate a large amount of power before my >> electrolyte reaches boiling. This allows me to increase the current >> density significantly. It is currently within the bounds of the successful >> level for the palladium deuterium systems. >> >> Dave >> >> -----Original Message----- >> From: Jack Cole <jcol...@gmail.com> >> To: vortex-l <vortex-l@eskimo.com> >> Sent: Wed, Oct 3, 2012 10:00 pm >> Subject: Re: [Vo]: Experimental Results with Nickel and Sodium Carbonate >> >> It seems like from the experiments I've run that if you want heat, put >> enough borax in so that it settles to the bottom. Then put your electrodes >> down into the borax powder in the bottom. Eventually, the borax powder >> disappears leaving yellowish nearly transparent crystals on the electrodes >> and in the bottom of the cell. It is easy to get 120+F temps with an air >> temperature of 60F using 12V @ 1amp. >> >> On Wed, Oct 3, 2012 at 5:55 PM, Paul Stout <paulst...@att.net> wrote: >> >>> My anode is a motor brush so its surface area is larger than that of >>> the nickel coin. >>> I have increased the current to 400 milliamps. With the active and >>> control beakers in series, the power supply is at 30 volts to drive that >>> current. >>> - >>> I was hoping to avoid the higher currents, which could mask any >>> anomalous heat being generated. >>> >>> Paul >>> >>> >>> >>> >>> On 10/3/2012 1:57 PM, Jack Cole wrote: >>> >>> I had a lot of heat, whether it is "anomalous" or not, I don't know. I >>> think it is somehow resistance heating through the borax or chemistry with >>> creating boric acid. Just a speculation. I had heat >130F (I say it this >>> way because my thermometer was electroplated or something causing it to >>> register 20F too high. It read 158 or so at the max). To get more heat, >>> you need an anode with as much surface area as your nickel. I used 12V at >>> 1 amp. >>> >>> On Wed, Oct 3, 2012 at 11:17 AM, Paul Stout <paulst...@att.net> wrote: >>> >>>> I have increased the current in my setup to 200 milliamps. It has been >>>> running at that current level for more than 12 hours now and no anomalous >>>> heat has shown up yet. >>>> - >>>> Has anybody been able to replicate Chuck Sites results? I have not >>>> seen any claims to that yet. >>>> - >>>> Paul >>>> >>>> >>> >>> >> >
