Changes

Line 183: Line 183:  
[[image:RF_Thermometer.jpg|Comparison of the shown probe to a HP474AC probe (Image: www.physicsforums.com)|thumb]]
 
[[image:RF_Thermometer.jpg|Comparison of the shown probe to a HP474AC probe (Image: www.physicsforums.com)|thumb]]
 
[[image:RF_Pumpe.jpg|Specifications of pump used "LMI P18" (Image: www.physicsforums.com)|thumb]]
 
[[image:RF_Pumpe.jpg|Specifications of pump used "LMI P18" (Image: www.physicsforums.com)|thumb]]
Andrea Rossi and Sergio Focardi gave a press conference on January 14, 2011 which was not only attended by Italian public television station RAI (RAI&nbsp;3) and numerous journalists, but also by several physicists employed at universities. Admission was restricted to invited guests. The presentation was done in rooms rented from the company "GM System" in an industrial area of Bologna<ref>Company GM System, Via dell'Elettricista&nbsp;16, Bologna</ref> and not in rooms of Bologna University, as is claimed on various websites. GM Systems has further business ties to Rossi. During this press conference, the function of the reactor was demonstrated for about an hour (55&nbsp;minutes) in an adjoining room. An analysis of recorded measurement data which can be seen on the screen of a notebook in a Youtube-video for a couple of seconds allow to estimate a period of 15&nbsp;to 20&nbspminutes(probably 17&nbsp; minutes), during which a water temperature of 100&nbsp;degrees or more was achieved. (see picture). The data visible on the notebook were omitted from the report on the experiment (according to physicist Levi, they were "lost"). Later, in June 2011, it became known that the date were not actually "lost", Levi was willing to send them to the visiting reporter Steven Krivit. The report also mentions a period of 40&nbsp;minutes, obviously referring to the entire period including heating up. To calculate the heat output, inadvertent or deliberately incorrect data of water throughput were included, which was in truth less than half of the said amount. The inventors reported the experiment in their blog<ref>http://www.journal-of-nuclear-physics.com/?p=360</ref>, and published three Youtube videos in Italian language [http://www.youtube.com/watch?v=z-0WvK2b7dU], [http://www.youtube.com/watch?v=u-Ru1eAymvE], [http://www.youtube.com/watch?v=dmHZrhTQhUc].
+
Andrea Rossi and Sergio Focardi gave a press conference on January 14, 2011 which was not only attended by Italian public television station RAI (RAI&nbsp;3) and numerous journalists, but also by several physicists employed at universities. Admission was restricted to invited guests. The presentation was done in rooms rented from the company "GM System" in an industrial area of Bologna<ref>Company GM System, Via dell'Elettricista&nbsp;16, Bologna</ref> and not in rooms of Bologna University, as is claimed on various websites. GM Systems has further business ties to Rossi. During this press conference, the function of the reactor was demonstrated for about an hour (55&nbsp;minutes) in an adjoining room. An analysis of recorded measurement data which can be seen on the screen of a notebook in a Youtube-video for a couple of seconds allow to estimate a period of 15&nbsp;to 20&nbspminutes(probably 17&nbsp; minutes), during which a water temperature of 100&nbsp;degrees or more was achieved (see picture). The data visible on the notebook were omitted from the report on the experiment (according to physicist Levi, they were "lost"). Later, in June 2011, it became known the data were not actually "lost", Levi was willing to send them to the visiting reporter Steven Krivit. The report also mentions a period of 40&nbsp;minutes, obviously referring to the entire period including heating up. To calculate the heat output, inadvertent or deliberately incorrect data of water throughput were included, which was in truth less than half of the said amount. The inventors reported the experiment in their blog<ref>http://www.journal-of-nuclear-physics.com/?p=360</ref>, and published three Youtube videos in Italian language [http://www.youtube.com/watch?v=z-0WvK2b7dU], [http://www.youtube.com/watch?v=u-Ru1eAymvE], [http://www.youtube.com/watch?v=dmHZrhTQhUc].
    
During the press conference they mentioned a heat input of 600&nbsp;Watts, at a calculated output of 12,000&nbsp;Watts (12&nbsp;kW). However, according to a report published (G. Levi), actual supplied power was 1,022&nbsp;Watt on average. A further analysis of the data published showed a result of 1,073&nbsp;Watt.<ref>http://www.e-catalyzer.se/viewtopic.php?f=2&t=7</ref> Power used was between 400 and 1,500 W. The inventors calculated their estimate of generated heat from the heated water: 292&nbsp;grammes of water per minute were heated from 20&nbsp;°C to 101&nbsp;°C (allegedly dry vapour) and evaporated. The attending physicists were allowed to take some measurements. They were disappointed, however, as a spectral analysis of the gamma radiation was denied for secrecy reasons. A detailed report submitted by independent physicists from Bologna University stated that no gamma radiation was detected, although the device was supplied with two openings for measurement purposes. Excerpt from the report:
 
During the press conference they mentioned a heat input of 600&nbsp;Watts, at a calculated output of 12,000&nbsp;Watts (12&nbsp;kW). However, according to a report published (G. Levi), actual supplied power was 1,022&nbsp;Watt on average. A further analysis of the data published showed a result of 1,073&nbsp;Watt.<ref>http://www.e-catalyzer.se/viewtopic.php?f=2&t=7</ref> Power used was between 400 and 1,500 W. The inventors calculated their estimate of generated heat from the heated water: 292&nbsp;grammes of water per minute were heated from 20&nbsp;°C to 101&nbsp;°C (allegedly dry vapour) and evaporated. The attending physicists were allowed to take some measurements. They were disappointed, however, as a spectral analysis of the gamma radiation was denied for secrecy reasons. A detailed report submitted by independent physicists from Bologna University stated that no gamma radiation was detected, although the device was supplied with two openings for measurement purposes. Excerpt from the report:
Line 189: Line 189:  
Observers were allowed to weigh the hydrogen gas container before and after the experiment (weight: 13,66&nbsp;kgs). Even considering possible errors in measurement (duct tape still attached), hydrogen usage was estimated at less than one gramme. Not enough to make conventional hydrogen combustion plausible. Link to the report: [http://www.psiram.com/doc/Levi%2C_Giuseppe_-_Report_on_heat_production_during_preliminary_tests_on_the_Rossi_Ni-H_reactor_%282010-2011%29.004810.pdf]
 
Observers were allowed to weigh the hydrogen gas container before and after the experiment (weight: 13,66&nbsp;kgs). Even considering possible errors in measurement (duct tape still attached), hydrogen usage was estimated at less than one gramme. Not enough to make conventional hydrogen combustion plausible. Link to the report: [http://www.psiram.com/doc/Levi%2C_Giuseppe_-_Report_on_heat_production_during_preliminary_tests_on_the_Rossi_Ni-H_reactor_%282010-2011%29.004810.pdf]
 
[[image:Rf_14012011_8.jpg|Alternative calculation explaining the reported values without cold fusion(Source: unknown author "Ascoli65" from Italian forum EnergeticAmbiente.it)|480px|thumb]]  
 
[[image:Rf_14012011_8.jpg|Alternative calculation explaining the reported values without cold fusion(Source: unknown author "Ascoli65" from Italian forum EnergeticAmbiente.it)|480px|thumb]]  
'''Inconsistencies''': Several incomprehensible pieces of information were provided shortly after the experiment. Even weeks later, Rossi's team did not react with a correction. Not only was the duration of the experiment shorter than claimed before at 17&nbsp;minutes (during which temperature was close to or above 100 degrees), but there is also reason to doubt further claims of inventors and operators of the experiment. The estimate of energy by evaporation of water(phase change) was criticized at "www.physicsforums.com" in retrospect, as respective calculations were made assuming dry vapour without fractions of condensed water, which was not proven. The probe shown in the video can only measure the heat but not relative humidity of the steam. A combined probe of the type HP474AC (Delta Ohm) was claimed to have been used, but the video shows a different probe which looks like an SPC&nbsp;C45 0500 BEX - probe. An HP474AC probe is not visible in any video. The claimed water throughput of 292&nbsp;ml/min. (= 17.5 liter/h) was doubted too, since the pump used had only half of this capacity according to specification. A pump of the type "LMI&nbsp;P18" had been used, as was confirmed in May 2011 by the Swedish reporter Mats Lewan. Several previous inquiries about the type of pump were not answered by Andrea Rossi.<ref>From JONP-Blog, Question to Rossi: ''January 28th, 2011 at 10:57 AM<br>Excuse, Dr. Levi, my insistence, but on the lack of an answer to my previous question, let me temporarily assume that the model of the pump used in the January 14th test belongs actually to the Milton Roy LMI Series P1.<br>In such a case, the capacity per stroke could be at maximum 2 ml (model P18 in the Series P1). Now, considering the pump has been operated at about 57 strokes per minute (hear sound at the beginning of movie 2/3), it makes a maximum water flow rate of 114 ml per minute, that would be 39% only of the value indicated in your preliminary report.<br>Probably, I have got a bad impression and the pump was another one. So I think it would be of great importance, if you could gather and kindly specify, here and/or on the final version of your report, the real specific model and the relevant operating data of the water pump used in your verification test.<br>Thank you and best regards'' (Name)<br><br>A. Rossi:<br>Andrea Rossi<br>January 28th, 2011 at 10:32 PM<br>Dear (Name):<br>I do not know which kind of pump it was, because it has been chosen by the testers, but what I can say, regarding your comment, is:<br>1- the amount of the flow of water has been tested many times during the test, filling a reservoir with a well known volume and taking the time to fill it up.<br>2- I thank you very much for validating our test by redundance: in fact, if only the 39% of the measured flow should have been passed, the reactor would have produced 4.8 kWh, consuming 400 Wh. I am sure that you, being an engineer of a great energy provider, know the first and also the second thermodynamic principle, therefore I am sure you made your comment to congratulate us.<br>For this reason I thank you infinitely.<br>Warm Regards, Andrea Rossi</ref>.
+
'''Inconsistencies''': Several incomprehensible pieces of information were provided shortly after the experiment. Even weeks later, Rossi's team did not react with a correction. Not only was the duration of the experiment shorter than claimed before at 17&nbsp;minutes (during which temperature was close to or above 100 degrees), but there is also reason to doubt further claims of inventors and operators of the experiment. The estimate of energy by evaporation of water (phase change) was criticized at "www.physicsforums.com" in retrospect, as respective calculations were made assuming dry vapour without fractions of condensed water, which was not proven. The probe shown in the video can only measure the heat but not relative humidity of the steam. A combined probe of the type HP474AC (Delta Ohm) was claimed to have been used, but the video shows a different probe which looks like an SPC&nbsp;C45 0500 BEX - probe. An HP474AC probe is not visible in any video. The claimed water throughput of 292&nbsp;ml/min. (= 17.5 liter/h) was doubted too, since the pump used had only half of this capacity according to specification. A pump of the type "LMI&nbsp;P18" had been used, as was confirmed in May 2011 by the Swedish journalist Mats Lewan. Several previous inquiries about the type of pump were not answered by Andrea Rossi.<ref>From JONP-Blog, Question to Rossi: ''January 28th, 2011 at 10:57 AM<br>Excuse, Dr. Levi, my insistence, but on the lack of an answer to my previous question, let me temporarily assume that the model of the pump used in the January 14th test belongs actually to the Milton Roy LMI Series P1.<br>In such a case, the capacity per stroke could be at maximum 2 ml (model P18 in the Series P1). Now, considering the pump has been operated at about 57 strokes per minute (hear sound at the beginning of movie 2/3), it makes a maximum water flow rate of 114 ml per minute, that would be 39% only of the value indicated in your preliminary report.<br>Probably, I have got a bad impression and the pump was another one. So I think it would be of great importance, if you could gather and kindly specify, here and/or on the final version of your report, the real specific model and the relevant operating data of the water pump used in your verification test.<br>Thank you and best regards'' (Name)<br><br>A. Rossi:<br>Andrea Rossi<br>January 28th, 2011 at 10:32 PM<br>Dear (Name):<br>I do not know which kind of pump it was, because it has been chosen by the testers, but what I can say, regarding your comment, is:<br>1- the amount of the flow of water has been tested many times during the test, filling a reservoir with a well known volume and taking the time to fill it up.<br>2- I thank you very much for validating our test by redundance: in fact, if only the 39% of the measured flow should have been passed, the reactor would have produced 4.8 kWh, consuming 400 Wh. I am sure that you, being an engineer of a great energy provider, know the first and also the second thermodynamic principle, therefore I am sure you made your comment to congratulate us.<br>For this reason I thank you infinitely.<br>Warm Regards, Andrea Rossi</ref>.
 
The manufacturer specifies a maximal flow of 12.1&nbsp;l/h for the  LMI&nbsp;P18.<ref>http://www.lmipumps.com/Files/lmi/Global/US-en/site_files/seriesj5.pdf</ref> Other models (A/B/C) of LMI pumps can be ruled out, as they definitely look different. Water throughput of these programmable peristaltic pumps can be regulated. The number of strokes per minute and the pumped volume can be regulated separately. The maximal number of strokes is 100&nbsp;per minute. At 100&nbsp;strokes/min, maximum throughput will be achieved. In one of the YouTube videos of the presentation on January&nbsp;14, 2011, pump strokes are clearly audible for 30&nbsp;seconds.<ref>http://www.youtube.com/watch?v=u-Ru1eAymvE</ref> Counting them, 29&nbsp;or 30&nbsp; strokes in those thirty seconds can be established. The pump was regulated to 59&nbsp;to 60&nbsp;strokes/minute, which corresponds to 60% of maximal flow rate. The heat output calculated by the team is thus 240% higher than the output actually possible using the pump shown in the video, and therefore certainly wrong. These faulty specifications on the average power (1,073&nbsp;W instead of 600&nbsp;W) result in an additional grave error of 78%. Assuming just a few percent of condensed water in the vapour would allow to explain the steam generation just by electrical heating.
 
The manufacturer specifies a maximal flow of 12.1&nbsp;l/h for the  LMI&nbsp;P18.<ref>http://www.lmipumps.com/Files/lmi/Global/US-en/site_files/seriesj5.pdf</ref> Other models (A/B/C) of LMI pumps can be ruled out, as they definitely look different. Water throughput of these programmable peristaltic pumps can be regulated. The number of strokes per minute and the pumped volume can be regulated separately. The maximal number of strokes is 100&nbsp;per minute. At 100&nbsp;strokes/min, maximum throughput will be achieved. In one of the YouTube videos of the presentation on January&nbsp;14, 2011, pump strokes are clearly audible for 30&nbsp;seconds.<ref>http://www.youtube.com/watch?v=u-Ru1eAymvE</ref> Counting them, 29&nbsp;or 30&nbsp; strokes in those thirty seconds can be established. The pump was regulated to 59&nbsp;to 60&nbsp;strokes/minute, which corresponds to 60% of maximal flow rate. The heat output calculated by the team is thus 240% higher than the output actually possible using the pump shown in the video, and therefore certainly wrong. These faulty specifications on the average power (1,073&nbsp;W instead of 600&nbsp;W) result in an additional grave error of 78%. Assuming just a few percent of condensed water in the vapour would allow to explain the steam generation just by electrical heating.
 
The report on the experiment states that the hydrogen cylinder employed was weighed before and after the test to establish the amount of hydrogen used with a margin of less than a gramme. Regarding the weight of the pressure cylinder, different data are given, but it is said to have been 13.66&nbsp;kg. Available scales for the given range (for 20/30/60&nbsp;kg) allow to read weight in steps of 0.1 gramme, but their precision is far less. Possible scales just offer a precision of 0.2&nbsp;to 0.4&nbsp;gram.<ref>Sartorius (CPA34001S) 34 kg d=0,1 gr e 0,2 gr.[http://www.sartorius-mechatronics.com/DE/de/praezisions-waage-dy3xpfyyb7o.html]<br>Precisa 490K 34000D, 34 kg d=0,1 gr e 0,2 gr [http://www.as-waegetechnik.de/produkte/Industriewaagen/iw/praezisionswaagen_assets/Precisa%20490.pdf]<br>Kern CDS 15K0.05 15 kg d=0,05 g, e 0,25 g<br>Adam Equipment PGL-20001 Precision Balance 20 kg d 0.1g, linearity (±):  0.4g</ref>
 
The report on the experiment states that the hydrogen cylinder employed was weighed before and after the test to establish the amount of hydrogen used with a margin of less than a gramme. Regarding the weight of the pressure cylinder, different data are given, but it is said to have been 13.66&nbsp;kg. Available scales for the given range (for 20/30/60&nbsp;kg) allow to read weight in steps of 0.1 gramme, but their precision is far less. Possible scales just offer a precision of 0.2&nbsp;to 0.4&nbsp;gram.<ref>Sartorius (CPA34001S) 34 kg d=0,1 gr e 0,2 gr.[http://www.sartorius-mechatronics.com/DE/de/praezisions-waage-dy3xpfyyb7o.html]<br>Precisa 490K 34000D, 34 kg d=0,1 gr e 0,2 gr [http://www.as-waegetechnik.de/produkte/Industriewaagen/iw/praezisionswaagen_assets/Precisa%20490.pdf]<br>Kern CDS 15K0.05 15 kg d=0,05 g, e 0,25 g<br>Adam Equipment PGL-20001 Precision Balance 20 kg d 0.1g, linearity (±):  0.4g</ref>
editor, reviewer
547

edits