Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-20 Thread Jouni Valkonen
Joshua refering to wikipaedia: The quality of steam can be quantitatively described by steam quality (steam dryness), the proportion of saturated steam in a saturated water/steam mixture. [4] i.e., a steam quality of 0 indicates 100% water while a steam quality of 1 (or 100%) indicates 100% steam.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-20 Thread Joshua Cude
On Sun, Nov 20, 2011 at 3:12 AM, Jouni Valkonen jounivalko...@gmail.comwrote: Joshua refering to wikipaedia: The quality of steam can be quantitatively described by steam quality (steam dryness), the proportion of saturated steam in a saturated water/steam mixture. [4] i.e., a steam quality of

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-20 Thread Alan Fletcher
Thanks again to AG for the file. The formula is Kelvin's : I.29 Page 12. There's a critical radius value, below which drops will shrink, above which they'll grow. I don't know if my mis-remembered C-name was Critical, Kelvin or a nearby Clapeyron equation. Anyway , now I can finish reading

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-20 Thread Alan Fletcher
There's also a Clausius-Clapeyron equation. (There's probably a single neuron in my brain recording that C memory. Misfiring.) I don't know if my mis-remembered C-name was Critical, Kelvin or a nearby Clapeyron equation.

[Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Alan Fletcher
Boiler Efficiency and Steam Quality: The Challenge of Creating Quality Steam Using Existing Boiler Efficiencies http://www.nationalboard.org/index.aspx?pageID=164ID=235 ... Lower Pressure Increases Entrainment As a steam bubble rises through the water and reaches the surface, it

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Alan Fletcher
Note : They are mainly talking about boilers with much higher pressures than the eCat.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
I dont think this is relevant. Rossi himself has said somewhere in a video or interview, there might be an error of 5% in the steam calculation. If we assume steam was 50% wet, which is physically impossible, then we still get a COP of about 3. 50% wet is rain and not fog or steam. So the

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Harry Veeder
If the same water is _theoretically_ supposed to boil at the same precise temperature at a given pressure, I just don't understand how water can _theoreticallly_ survive as a liquid drop while surrounded by steam which is above the boiling point. In other words, the theory that the same water

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 19.11.2011 22:56, schrieb Harry Veeder: If the same water is _theoretically_ supposed to boil at the same precise temperature at a given pressure, I just don't understand how water can _theoreticallly_ survive as a liquid drop while surrounded by steam which is above the boiling point. In

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 3:34 PM, Peter Heckert peter.heck...@arcor.dewrote: If we assume steam was 50% wet, which is physically impossible, then we still get a COP of about 3. 50% wet is rain and not fog or steam. In 2-phase flow, steam (or vapor) quality is simply the ratio of the mass of

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Harry Veeder
On Sat, Nov 19, 2011 at 5:05 PM, Peter Heckert peter.heck...@arcor.de wrote: Am 19.11.2011 22:56, schrieb Harry Veeder: If the same water is _theoretically_ supposed to boil at the same precise temperature at a given pressure, I just don't understand how water can _theoreticallly_ survive as

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 19.11.2011 23:19, schrieb Joshua Cude: On Sat, Nov 19, 2011 at 3:34 PM, Peter Heckert peter.heck...@arcor.de mailto:peter.heck...@arcor.de wrote: If we assume steam was 50% wet, which is physically impossible, then we still get a COP of about 3. 50% wet is rain and not fog

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 19.11.2011 23:29, schrieb Harry Veeder: Prof Chang has observed it and he says it is routinely observed but it is just ignored because it doesn't fit theory. Harry I have repeatedly tested Thermoelements over boiling water and have never observed it. When he doesnt accept steam theory why

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Alan Fletcher
In small bubbles or small drops, surface tension is dominant. Pressure changes, so the PVT equilibrium can be different. I have a link somewhere for this I'm not sure if I put in my tube boiler analysis. And for the life of me, I can't remember if small drops grow or shrink in a

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 4:33 PM, Peter Heckert peter.heck...@arcor.dewrote: But even at steam quality of 0% most of the experiments would give a COP 1, because the input energy measured was not enough to heat the water to 100° and definitely there was boiling and some steam observed. In

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
The energy necessary to create a surface big enough to surround all atoms of a liquid is the enthalpy of boiling. This is a recent result and is pretty accurate for a large range of substances http://en.wikipedia.org/wiki/Enthalpy_of_vaporization#Physical_model_for_vaporization . So, at boiling

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 19.11.2011 23:58, schrieb Alan Fletcher: In small bubbles or small drops, surface tension is dominant. This is true. There is an interesting early scientific work about water electricity from the physicist Lenard who later got the nobel price. He points out that evaporating water is

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Jouni Valkonen
Peter wrote: » Thank you for pointing this out, it is probably correct and I was in error.» No, what Joshua said does not even resemble physics. If his explanation would be even remotely truthful, kettle boilers would be impossible, because all water would escape from tea pots as low quality

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 20.11.2011 00:37, schrieb Jouni Valkonen: Peter wrote: » Thank you for pointing this out, it is probably correct and I was in error.» No, what Joshua said does not even resemble physics. If his explanation would be even remotely truthful, kettle boilers would be impossible, because all

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Jouni Valkonen
Peter, I do not see how it would be possible, because if water is atomized (it would cause also loud sound instead of observed gentle boiling sound), it cannot climb the chimney, because atomized water quickly returns into liquid in the closed container if velocity is low. This is also the reason

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 5:37 PM, Jouni Valkonen jounivalko...@gmail.comwrote: Peter wrote: » Thank you for pointing this out, it is probably correct and I was in error.» No, what Joshua said does not even resemble physics. If his explanation would be even remotely truthful, kettle boilers

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 6:01 PM, Jouni Valkonen jounivalko...@gmail.comwrote: And if there is low quality steam, then steam velocity cannot be high because water mass flow was low, few gramms per second. So no matter how you look it, low quality steam is physical impossibility with ecat.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
That means that part does not leave. 2011/11/19 Joshua Cude joshua.c...@gmail.com This again. Please explain what would happen if the flow rate was 675 kg/L, and a power of say 235 kW was delivered to the ecats (electrically, or whatever). In that case, there is only enough power to vaporize

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 6:10 PM, Daniel Rocha danieldi...@gmail.com wrote: That means that part does not leave. That could work for a while, but eventually the ecat would fill up. Anyway, Rossi always uses the input flow rate to calculate the output power, so he is assuming it is coming out.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Jouni Valkonen
Joshua wrote: »In the 2-phase literature, this mixture of percolated hot water and steam is still called low-quality steam.» Outside Krivit-inspired Rossi discussion I have never heard this kind of definition for steam quality. Also wikipaedia does not recognize such definition. Coffee makers do

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 20.11.2011 01:01, schrieb Jouni Valkonen: Peter, I do not see how it would be possible, because if water is atomized (it would cause also loud sound instead of observed gentle boiling sound), it cannot climb the chimney, because atomized water quickly returns into liquid in the closed

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
Not if the output is actually much higher than the input! 2011/11/19 Joshua Cude joshua.c...@gmail.com On Sat, Nov 19, 2011 at 6:10 PM, Daniel Rocha danieldi...@gmail.comwrote: That means that part does not leave. That could work for a while, but eventually the ecat would fill up.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Peter Heckert
Am 20.11.2011 01:38, schrieb Daniel Rocha: Not if the output is actually much higher than the input! He doesnt measure the output mass flow. He always assumes this equals the input mass flow and it is all vaporized. From this assumption he calculates the output energy. If this assumption is

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
It is correct because otherwise, it would leave the pipe without bubbling! :) 2011/11/19 Peter Heckert peter.heck...@arcor.de Am 20.11.2011 01:38, schrieb Daniel Rocha: Not if the output is actually much higher than the input! He doesnt measure the output mass flow. He always assumes this

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Mary Yugo
On Sat, Nov 19, 2011 at 4:19 PM, Peter Heckert peter.heck...@arcor.dewrote: Am 20.11.2011 01:01, schrieb Jouni Valkonen: Rossi says he has heated a room and he intends to sell the ecat for heating applications. So why doesnt he simply demonstrate this? The waterflow and delta_t is easily

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
: 2011/11/19 Subject: Re: [Vo]:Steam Quality Revisted -- Kettle Boiler To: vortex-l@eskimo.com That's what I've been asking. Jed Rothwell says he has proof that Rossi had a 35 kW heater that ran continuously as a heater -- several people saw it. But he won't provide the slightest documentation

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Terry Blanton
On Sat, Nov 19, 2011 at 8:03 PM, Mary Yugo maryyu...@gmail.com wrote: Here's the amazing part of the whole story:  Rossi never had to bother with making E-cats or Ottoman cats or a megawatt plant to prove his device works.  All he had to do was to take the scientists and reporters with some

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Mary Yugo
On Sat, Nov 19, 2011 at 5:13 PM, Daniel Rocha danieldi...@gmail.com wrote: Jed says people who he trusts saw it. If there is still people talking about LENR, well, thats part of his efforts, so he knows more people and has more contacts than Rossi can controls. Or do you think he is lying?

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
Yeah, yeah, I know all that. Please, you dont need to say that all the time. 2011/11/19 Mary Yugo maryyu...@gmail.com BTW, that's a typical scammer tactic too-- they can never show you their last successful device because they took it apart to reuse the components or they're working on a

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Terry Blanton
On Sat, Nov 19, 2011 at 8:31 PM, Mary Yugo maryyu...@gmail.com wrote: On Sat, Nov 19, 2011 at 5:13 PM, Daniel Rocha danieldi...@gmail.com wrote: Jed says people who he trusts saw it. If there is still people talking about LENR, well, thats part of his efforts, so he knows more people and has

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Alan Fletcher
Good news : I found the link.Legacy Image - Scan to PDF http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710004292_1971004292.pdf Bad news ... the file's corrupted, and only shows about a quarter of the document on one of my systems (not this one!). Download fails, and adobe says file

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Aussie Guy E-Cat
Downloaded the document ok. All there. AG On 11/20/2011 1:57 PM, Alan Fletcher wrote: Good news : I found the link.Legacy Image - Scan to PDF http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19710004292_1971004292.pdf Bad news ... the file's corrupted, and only shows about a quarter

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Alan Fletcher
Weird ... can you search for surface tension/drops (It's probably to big to email ... but could you give it a try. This address) - Original Message - Downloaded the document ok. All there.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Aussie Guy E-Cat
It is 11.8 MBs. Sending in the next email. AG On 11/20/2011 2:10 PM, Alan Fletcher wrote: Weird ... can you search for surface tension/drops (It's probably to big to email ... but could you give it a try. This address) - Original Message - Downloaded the document ok. All there.

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Aussie Guy E-Cat
Sent. Shall I also send to your direct email? AG On 11/20/2011 2:10 PM, Alan Fletcher wrote: Weird ... can you search for surface tension/drops (It's probably to big to email ... but could you give it a try. This address) - Original Message - Downloaded the document ok. All

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Aussie Guy E-Cat
Send to Vortex failed. Sending directly to your email. AG On 11/20/2011 2:10 PM, Alan Fletcher wrote: Weird ... can you search for surface tension/drops (It's probably to big to email ... but could you give it a try. This address) - Original Message - Downloaded the document

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Terry Blanton
On Sat, Nov 19, 2011 at 11:04 PM, Aussie Guy E-Cat aussieguy.e...@gmail.com wrote: Send to Vortex failed. Sending directly to your email. Vortex is limited to a 40 kByte file size. Yahoo will allow 10 Mbyte attachments or larger if you use their new mailer. You can load it up to your documents

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Aussie Guy E-Cat
Thanks for that tip. It is done: https://docs.google.com/open?id=0B__Wi_DF2CjJM2Y2Mjc4YTQtNjliNC00OGMxLWI5NTAtNWY0NzUyNWU1MTQ5 AG On 11/20/2011 2:37 PM, Terry Blanton wrote: On Sat, Nov 19, 2011 at 11:04 PM, Aussie Guy E-Cat aussieguy.e...@gmail.com wrote: Send to Vortex failed. Sending

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Terry Blanton
On Sat, Nov 19, 2011 at 11:29 PM, Aussie Guy E-Cat aussieguy.e...@gmail.com wrote: Thanks for that tip. It is done: https://docs.google.com/open?id=0B__Wi_DF2CjJM2Y2Mjc4YTQtNjliNC00OGMxLWI5NTAtNWY0NzUyNWU1MTQ5 That worked great. You can shorten the URL using goo.gl which keeps a record of your

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 6:19 PM, Jouni Valkonen jounivalko...@gmail.comwrote: Joshua wrote: »In the 2-phase literature, this mixture of percolated hot water and steam is still called low-quality steam.» Outside Krivit-inspired Rossi discussion I have never heard this kind of definition for

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 6:38 PM, Daniel Rocha danieldi...@gmail.com wrote: Not if the output is actually much higher than the input! If only half the water is vaporized, and the output is higher than the input, then the output must contain more than half liquid water, which was the point to

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Daniel Rocha
Lol, wut? 2011/11/20 Joshua Cude joshua.c...@gmail.com On Sat, Nov 19, 2011 at 6:38 PM, Daniel Rocha danieldi...@gmail.comwrote: Not if the output is actually much higher than the input! If only half the water is vaporized, and the output is higher than the input, then the output must

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread David Roberson
, 2011 12:14 am Subject: Re: [Vo]:Steam Quality Revisted -- Kettle Boiler Lol, wut? 2011/11/20 Joshua Cude joshua.c...@gmail.com On Sat, Nov 19, 2011 at 6:38 PM, Daniel Rocha danieldi...@gmail.com wrote: Not if the output is actually much higher than the input! If only half the water

Re: [Vo]:Steam Quality Revisted -- Kettle Boiler

2011-11-19 Thread Joshua Cude
On Sat, Nov 19, 2011 at 11:30 PM, David Roberson dlrober...@aol.com wrote: Daniel, I think that the poster believes that the ECATs are full of water in Rossi's 1 MW test. Well, full of water and steam. The steam takes up most of the volume and so it moves much faster entraining water droplets