iccf17 tech-ppt cecr with sri
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Brillouin Energy Corporation with SRI, technology paper for ICCF17.TRANSCRIPT
© 2010 SRI International
Controlled Electron Capture and Low Energy Nuclear Reactions
Francis Tanzella Michael McKubre
SRI International, Menlo Park, CA USA
Robert Godes Robert George
Brillouin Energy Corporation, Berkeley, CA USA
Presented at the 17h International Conference on Condensed Matter Nuclear Science Daejeon, Korea August 13, 2012
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Outline Background
Controlled Electron Capture Hypothesis
Experimental
Open-Cell Pd-H2O Electrolysis
Pressurized Cell Ni-H2O Electrolysis
Stimulation Method
Calorimetry Methods
Results
Open-Cell
Pressurized Cell
Summary and Conclusions
Future Work
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Background: Stimulation Leads to Anomalous Effects Celani, et al.:
Microsecond pulse electrolysis yields excess power Electromigration leads to high loading and yields excess power Fusion Technology, 29, 398 (1996)
Dardik, et al.: Multiple frequency stimulation yields high loading and generates excess power ICCF15 Conference Proceedings, 307 (2012)
DeNinno, Scaramuzzi, et al.: Axial current through PdDx yields high loading and generates excess power ICCF8 Conference Proceedings, 70, 47 (2000)
Mengoli, et al.: Axial current through PdDx increases loading and gives nuclear effects (i. e. n0) Nuovo Cimento A, 108A, 1187 (1995)
Celani, Tripodi, et al.: Low concentration electrolyte (high electrolytic and axial voltage) yields excess
power Physics Letters A, 276, 122 (2000)
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Hypothesis: Controlled Electron Capture Reaction
LENR (LANR?) catalyzes the reverse of the exothermic reaction:
Spatial confinement in lattice raises the energy of dissolved hydrogen. In combination with effects of nonbonding energy raises total value of
Hamiltonian comprising coulomb, nonbonding, and confinement. A Hamiltonian with ≥ 782keV can cause a proton to capture an electron
to yield an ultra cold neutron. A Hamiltonian with ≥ 3MeV allows a deuteron to capture an electron
and form a di-neutron. Newly generated neutron(s) in a lattice will react with hydrogen
isotopes which tunnel into the same lattice position (< 1ns) This process could be successive ending with:
n→ p + β + 782keV
4H→ 4He+β + (17− 21MeV )
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Hypothesis: Possible Controlled Electron Capture Reactions
p + ≥ 782KeV + e- » n + νe
p + n » d + 2.2MeV
d + n » T + 6.3MeV
T + n » 4H + (?MeV) 4H » 4He + β¯+ νe + (17 - 21)MeV
d + (up to 3MeV) + e- » 2n + νe
2n + d » 4H + (?MeV) 4H » 4He + β¯+ νe + (17 - 21)MeV
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Experimental: Calorimetry
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Experimental: Calorimetry Heat transfer fluid (MobileTherm 603) recirculating through coil in electrolyte 98% of resistive heater input recovered Up to 200°C and up to 130bar. A re-circulating chiller (Neslab RTE111) A 100MHz Fluke 196C oscilloscope meter, operating in "AC (rms) + DC" mode, The only input to the system is electric power and the only output from the system is heat Heat losses at different temperatures measured
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Results: Open Cell
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Results: Pressurized Cell Ni/H2O electrolysis 50% Excess power most of the 66 hour run Pulse: Swept repetition rate, stepped amplitude, third proprietary function
Fig. 3. Plot of power and temperature versus time for Experiment 1
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Results: Pressurized Cell Ni/H2O Electrolysis 50% Excess Power over 14 hours Pulse: Swept Rep. rate, stepped amplitude, third proprietary function, constant Pin
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Results: Pressurized Cell Continuation of Ni/H2O Electrolysis on last slide Excess Power jumped from 55% to 70% Pulse function parameters changed with minimal change in input power
Fig. 5. Calorimetric results from Experiment 3 continued
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Results: Pressurized Cell Part of Ni/H2O electrolysis experiment Excess Power ≥75% for 11 hours, ≥80% for 7 hours Pulse function parameters changed with no change in input power
Fig. 6. Calorimetric results from Experiment 4
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Results: Pressurized Cell Part of Ni/H2O electrolysis experiment Excess Power ≥100% for 6 hours Pulse function parameters changed with minimal change in input power
Fig. 7. Calorimetric results from Experiment 5
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Results: Pressurized Cell
Part of Ni/H2O electrolysis experiment Excess Power alternated between 0 and 20% Alternating pulse repetition rate led to Pxs alternating between 0 and 20%
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Results: Pressurized Cell
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Summary
LENR reactions reportedly stimulated by axial electrical pulses
Excess power reported in axial electrical pulse LENR experiments
Over 150 experiments and two different cell/calorimeter designs.
Pd/H2O and Ni/H2O electrolysis Excess power always seen where Q pulses are tuned to the
“resonance” of the hydride conductors Excess power on demand using light water electrolysis after finding
“resonance”
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Conclusions
Excess power >100% possible in Ni/H2O system
Pulsed axial and cathode voltage give excess power in our system
Excess power depends on pulse repetition rate
Other proprietary pulse parameters necessary to give 25 – 100% Pxs
CEC hypothesis (mechanism) may be wrong, but .. Experimental conditions and results are consistent with CEC
hypothesis Should work with any metal that confines hydrogen isotopes to allow
for CEC reactions
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Future Work
Gas phase H2 or D2 on high surface area Ni
Higher Temperatures (~500°C)
Useful temperature and heat
Expect even higher excess power
Hopefully adequate for path to commercialization
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