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I just saw a Andrea Rossi E-Cat video demonstration on Youtube.
A major discrepancy was point out to me in this demonstration. The steam production is nowhere near what is being claimed. The numbers dont jive with the video!
Quote, Motor Guy, from readers comments
"Rossi's steam output energy calculations are at vast odds with the observable output.
Steven Krivit tried to nail down the output energy measurements. He asked for clear statements of the methods and the results. He didn't get them. What he did get was a peek at the output of one discharge hose. Steven recorded this video: YouTube - ‪2011 - Andrea Rossi Explains His Energy Catalyzer‬‏. Pay attention beginning around eleven minutes. Rossi held the discharge hose up to a black T shirt to show the steam coming out. About a minute later, he said that the amount of water being processed is: 7l/h. A quick back of the envelope calculation translates 7l/h water to 11,900 l/h steam at 1 ATM and 100C. That works out to more than 3l/s vapor from the hose. To my eyeballs the hose ID is 1-1.5cm or around 0.8 - 2sq cm. Let's call it 1.5sq cm. 3l/s through a 1.5sq cm opening requires a linear velocity of 2000cm/s. My eyeballs see vapor moving at a few to perhaps 10cm/s. Even if my old eyes are off by a factor of ten, the flow rate is a small percentage of the steam equivalent of 7l/h.
We might guess that the velocity is way off because of condensation in the hose. In that case we can translate the 7l/h to the amount of water that should have condensed on the shirt. 7l/h is just under 2g/s = 2ml/s. They held the hose to the shirt for between ten and fifteen seconds. There should have condensed 20ml - 30ml water. That's enough to make the shirt pretty wet. The shirt looked quite dry when they pulled the hose away. I don't know about you, but when a demonstration of a fantastical claim doesn't back the claim I don't become a believer."
The steam looks to be closer to 3 Liters Per Minute than 3Liters Per Second!!! Something is not right
A major discrepancy was point out to me in this demonstration. The steam production is nowhere near what is being claimed. The numbers dont jive with the video!
Quote, Motor Guy, from readers comments
"Rossi's steam output energy calculations are at vast odds with the observable output.
Steven Krivit tried to nail down the output energy measurements. He asked for clear statements of the methods and the results. He didn't get them. What he did get was a peek at the output of one discharge hose. Steven recorded this video: YouTube - ‪2011 - Andrea Rossi Explains His Energy Catalyzer‬‏. Pay attention beginning around eleven minutes. Rossi held the discharge hose up to a black T shirt to show the steam coming out. About a minute later, he said that the amount of water being processed is: 7l/h. A quick back of the envelope calculation translates 7l/h water to 11,900 l/h steam at 1 ATM and 100C. That works out to more than 3l/s vapor from the hose. To my eyeballs the hose ID is 1-1.5cm or around 0.8 - 2sq cm. Let's call it 1.5sq cm. 3l/s through a 1.5sq cm opening requires a linear velocity of 2000cm/s. My eyeballs see vapor moving at a few to perhaps 10cm/s. Even if my old eyes are off by a factor of ten, the flow rate is a small percentage of the steam equivalent of 7l/h.
We might guess that the velocity is way off because of condensation in the hose. In that case we can translate the 7l/h to the amount of water that should have condensed on the shirt. 7l/h is just under 2g/s = 2ml/s. They held the hose to the shirt for between ten and fifteen seconds. There should have condensed 20ml - 30ml water. That's enough to make the shirt pretty wet. The shirt looked quite dry when they pulled the hose away. I don't know about you, but when a demonstration of a fantastical claim doesn't back the claim I don't become a believer."
The steam looks to be closer to 3 Liters Per Minute than 3Liters Per Second!!! Something is not right
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