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Dr. Melvin H. Miles Visiting Professor Dixie State University St. George, Utah 84770, U.S.A. email: mhmiles1937@gmail.com ICCF – 23 in Xiamen, China (Virtual) June 9-11, 2021 Presentation Outline I. Show Experimental Results For Early Excess Power Using NRL Pd-B Cathode. A. NHE Laboratory (Japan) Using F-P Dewar Calorimetry (1997). B. Ridgecrest, California (U.S.A.) Using Copper Heat Conduction Calorimeter (2016). C. Naval Research Laboratory Results Using a Seebeck Calorimeter (1995). (Importance Not Realized Until 2018) II. Discuss Possible Calorimetric Error Sources. A. Thermoneutral Potential (EH). B. Cell Heat Capacity (CpM). C. Rate of Cell Temperature Change (dT/dt). III: Discuss Possible Boron Effects For Cold Fusion. A. Direct B+D Reactions Have Been Proposed. B. Essential Element For Fusion Process. C. Provides Nuclear Reaction Zones. (Vacancies, Cracks, Grain Boundaries, Electrical Double Layers). D. Boron May Act as “Trigger” For Cold Fusion Reactions. EARLY EXCESS POWER EVENTS FOR Pd-B CATHODES 1. NHE Laboratory (Japan) Using F-P Dewar Calorimeter (December 5, 1997) ❖ First Noted by Martin Fleischmann -- Mean Excess Power of 57 mW at 55 minutes -- Mean Excess Power of 38 mW for First 24 hours “It is obviously very important to establish whether this early establishment of positive feedback is a property of Pd-B alloys ---”. (M. Fleischmann, NRL Report (2001), p. 25) 2. Ridgecrest, California Laboratory Using a Heat Conduction Calorimeter (July 3, 2016) ❖ Measured Excess Power was 118 mW at 8 minutes 3. Naval Research Laboratory (U.S.A.) Using a Hart Seebeck Calorimeter (January, 1995) ❖Continuous Excess Power During and Following Loading (5 to 15 mW) (Not Recognized Until 2018) Pd – 0.5 B At NHE (Japan) (Fleischmann’s Analysis For First Two Days) Early Excess Power (PX ) (13.9 h) (27.8 h) (41.7 h) (56.8 h) 0.050 W 0.040 W 0.010 W 0 M.H. Miles, M. Fleischmann and M.A. Imam, “Calorimetric Analysis of a Heavy Water Electrolysis Experiment Using a Pd-B Alloy Cathode.” NRL/MR/6320-01-8526, March 26, 2001, P. 81. Each point is a 55 minute average. (Other Experimental Points Show the “Lower Bound” heat transfer coefficient). Early Excess Power (PX ) Fleischmann Analysis Mean Excess Power per Day for the NHE (Japan) Pd-0.5 B Experiment -100 0 100 200 300 400 500 0 10 20 30 40 50 60 70 P x (mW) Time(Day) (See NRL Report, pp. 79, 88-91) (kR = 0.85065x10-9 W/K4 , CpM = 450 J/K) 20 40 60 Days Days Days (400 mW) (0 mW) Miles Analysis Study of NRL Pd-B Rod In Japan (NHE) (0.50 wt. % B, 0.471 x 2.01 cm, V=0.35 cm3 , December 1997 – February 1998) -0.15 -0.10 -0.05 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0 1000000 2000000 3000000 4000000 5000000 6000000 Excess Power (W) Time (seconds) F / P Cells - Pd - 0.5B December 5, 1997 - February 2, 1998 Excess Power PX-2 (kR = 0.81120x10-9 W/K4 , CpM = 490 J/K) 24 Days 58 Days * The kR Value Used Was Too Small Early Excess Power For Ridgecrest California Experiment (Pd-0.5 B Cathode Using My Copper Calorimeter) March 18, 2017 0.0 20.0 40.0 60.0 80.0 100.0 120.0 140.0 0 50 100 150 200 250 300 350 Excess Power (mW) Time (minutes) (kC = 0.1205 W/K , CpM = 450 J/K) Figure 3. Early excess power for a Pd-0.5 B rod (0.47 x 2.01 cm). The dashed line shows the maximum excess power expected for 100% deuterium loading at the cell current of I = 0.150 A. PL = (1.5267 – 1.3448)(0.150 A) = 0.0273 W. Early Excess Power For Pd – 0.75 B At NRL Miles/Dominguez / January 1995 New Seebeck Calorimeter (Hart) Time/Hours Time/Hours Cell C Time/Hours 40 60 80 100 120 140 1 Possible Calorimetric Error Sources A. The Thermoneutral Potential (EH) ❑ Assume 100% Deuterium Loading ΔH˚ = 77.85 kJ/mol Pd EH ˚ = - ΔH˚ / 0.6 F = - 1.3448 V ❑ Only Explains Excess Power Due To Loading For I = 0.1500A , PX (Loading) = 0.0273 W (27.3 mW) (Note: Previous Calculation Error for ΔH˚ Led To Incorrect Conclusion) ✓ EH is NOT An Error Source ✓ Decreases In EH Explained By Deuterium Loading. Pd + 0.3 D2O PdD0.6 + 0.15 O2 PX = (1.5267 – 1.3448) I = 0.1819 I Possible Calorimetric Error Sources B. The Cell Heat Capacity (CpM) • Where PX ’ = PX + PG + PW and f(T) = T – Tb (Heat Conduction) f(T) = T4 – Tb 4 (Heat Radiation) Note: Initially CpMdT/dt is Large F-P Dewar Cell CHECK CpM = 450 J/K 90 mL D2O = 419 J/K 20 cm3 Pyrex Glass = 30 J/K Pd + Pt Metals = 2 J/K EXPERIMENTAL CHECK TOTAL = 451 J/K CpM Is NOT An Error Source No Discontinuities Across Cell Heating Pulses (Large CpMdT/dt) (See NRL Report, pp. 72,73) PX ’ = CpMdT/dt + k f(T) - (E – EH ) I Possible Calorimetric Error Sources C. Rate of Cell Temperature Change (dT/dt) Accurate Methods Exist For Determining dT/dt ➢Graphical (T vs. time Graph) ➢Polynomial Fitting (T = a + bt + ct2 +dt3 + ----) dT/dt = b + 2 ct + 3 dt2 + --- ➢Numerical Integration (Avoids dT/dt use) (Simpson or Trapezoidal Rule) CpMdT/dt ≈> CpM (T2 – T1 ) (W) (J) Any Error Due to dT/dt Can Be Minimized or Avoided Lower Bound Cell Constant (k’) (Sensitive To Early Excess Power) oCalculation of k’ Assumes Zero Excess Power Rearranged ≈> ▪ k’ Often Negative For Real PX and Small ΔT (Early in Experiment) Pd-0.5 B Data Point At t = 8.0 Minutes ΔT = 0.55 K, E = 4.440 V, I = 0.150 A, dT/dt = 1.083x10-3 K/s (0.065 K/m) PX = (0.1205 + 0.09155)(0.55K) = 0.1166 W (Omitting PG and P W) (See M. Fleischmann and S. Pons, Physics Letters A, 176, 118-129, 1993) k’ = k - PX /ΔT PX = (k – k’) ΔT k’ = -0.09155 W/K k = 0.1205 W/K (117 mW) Possible Boron Effects For LENR 1. Boron As An Essential Element For LENR. ✓ Boron In Pyrex May Explain Weeks/Months of Electrolysis Before LENR Appears. ✓ Explains Why Repeated Experiments With The Same Cathode Often Produce Larger Effects. 2. Boron May Participate in Fusion Reactions. ✓ D + B-10 → 3 He-4 + 17.6 MeV ✓ Active Electrodes Show B-10 Depletion (See T.O. Passell, ICCF-6 and ICCF-11 Proceedings) 3. Boron May Aid Creation of Nuclear Reaction Zones. ✓ Vacancies, Cracks, Grain Boundaries, Double Layers. 4. Boron May Act as “Trigger” For LENR 5. Boron Greatly Slows Deuterium Deloading Rate. 6. Boron Is An Unusual Element. ✓ B Atom Has Three Unpaired Electrons. (Unpaired electrons affect NMR Spectra, see DNP). ✓ Calcium Boride Often Used in Palladium Preparation. (Oxygen Getter) Mathematical Modeling Of Early Cell Behavior (Theoretical Increase of T - Tb With Time For PX ’ = 0) ➢CpMdΔT/dt = (E - EH)I – k(T - Tb ) + P’X Where ΔT = T – Tb ✓Assume P’X = PX + PG + PW = 0 (Tb = T0 ) dΔT/dt = α - γΔT Where α = (E - EH)I / CpM (K/s), γ = k/CpM (s-1 ) ➢Integration Yields ΔT = T – T0 = (α/γ)[1 – exp (-γt)] For Small – γt then exp ( - γt) ≈ 1 – γt Thus ΔT ≈ αt ❑ Cell Temperature Initially Increases Linearly With Time Initial Experimental And Calculated ΔT Values t (minutes) T – To (K) T – To (K) E (V) P’X (mW) (Experimental) Calculated) 0.0 0 0 -- -- 2.0 0.120 0.111 4.345 87 4.0 0.270 0.222 4.389 98 6.0 0.420 0.331 4.419 112 8.0 0.550 0.437 4.440 118 10.0 0.675 0.540 4.451 93 12.0 0.800 0.633 4.425 84 14.0 0.910 0.730 4.440 76 16.0 1.010 0.824 4.446 59 18.0 1.110 0.916 4.458 60 20.0 1.190 1.005 4.465 50 Table 2. Initial Cell Temperatures: Experimental and Calculated. For First 10 Minutes: ΔH = CpM [(T – T0 ) - (T’ – T0 )] = 450 J/K [0.135 K] = 61 J Mean Excess Power: = 61 J/(10)(60)s = 0.102 W PX [87, 98, 112, 118, 93 mW] Excess Power Measurements Are Correct. (Early Excess Power Mainly Used To Heat Cell) SUMMARY For Pd-B CATHODES 1. Very Early Excess Power Measured In Different Experiments. ▪ Excess Power Detected Within Minutes Of Electrolysis. ▪ Three Different Laboratories Using Three Different Calorimeters. 2. No Error Source Explains This Early Excess Power. ▪ EH , CpM, dT/dt Are Not Error Sources. 3. Possible Boron Effects For Cold Fusion (LENR). ▪ Direct B + D Reactions. ▪ Boron Is An Essential Element For LENR. ▪ Boron May Aid In Creating Nuclear Reaction Zones. ▪ Boron May Serve as “Trigger” For Start of LENR. Note: Boron Loads Normally But De-Loads Very Slowly. (Boron Atoms In Grain Boundaries May Block Deuterium Escape). Acknowledgements 1. Masao Sumi ✓ Helped At NHE In Setting Up F-P Type Experiments. ✓ Sent Me Complete Computer Data For My NHE Experiments. (I was denied this data when leaving NHE). 2. Dr. Martin Fleischmann ✓ Provided Detailed Analysis For My NHE Pd-0.5 B Experiment. ✓ First To Show Early Excess Power For NRL Pd-0.5 B Cathode. 3. Dr. M.A. Imam ✓ Prepared Pd-B Cathodes At Naval Research Laboratory (NRL). (U.S. Patent 6764561B1, July 20, 2004) 4. Dr. Fred Saalfeld, Head of NRL In 2001 ✓ Allowed Publication of Fleischmann’s Analysis As a NRL Report. (Despite Considerable Cold Fusion Controversy Within U.S. Navy). 5. M Fleischmann and S. Pons For Accurate Calorimetric Equations. 6. Financial Support From Anonymous Fund At The Denver Foundation Through The Dixie Foundation at Dixie State University.
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Best book to get started on this subject:
EXCESS HEAT
Why Cold Fusion Research Prevailed by Charles Beaudette
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