Enrico Purchi

Ministero dell'Istruzione, dell'Università e della Ricerca | MIUR

Since 1994, our research has focused on the effects of electric pulse shapes in generating Anomalous Heat Effects (AHE) in specific materials under different gas environments. Initially, we observed these effects in Pd and Pd-Y alloys with unipolar pulsing in electrolytic conditions using D2O. However, the limitations of this setup, including a max...

This presentation summarizes the work that followed the previous ANV11 Workshop. The “goal” of these workshops is having exchanges the attending Researchers who are invited to submit questions for 10 days after the date of the presentation. This interchange with peers is used to improve the notes and the presentation material that are made availabl...

This presentation summarizes the work that followed the previous ANV8 Workshop held in Assisi-Italy in December 2021. The “goal” of these workshops is having exchanges the attending Researchers who are invited to submit questions for 10 days after the date of the presentation. This interchange with peers is used to improve the notes and the present...

This paper is mostly based on our presentation given at the 23rd International Conference on Condensed Matter Nuclear Science (ICCF23) held at Xiamen University (XMU)-PRC on June 9-11, 2021, but largely enriched to satisfy the requests of the referees. Upon the suggestion of the Conference Organizers, we added a detailed explanation of our procedur...

At National Institute of Nuclear Physics, Frascati National Laboratories (INFN-LNF)-Italy, studies about Cold Fusion started on March 26, 1989. We found, since the beginning, that non-equilibrium situations are key-factors to get any “anomalous effect” (thermal/nuclear): mostly, they are forced reactions, not spontaneous. The present abstract is: A...

Following the efforts to find simple procedures to activate the specific material we developed (since 2011; based on surface-modified Constantan in the shape of long and thin wires, Joule heating), able to produce measurable values of AHE we reproduced them. Made new specific tests to investigate also isotopic effects. Moreover, according to our in...

The presentation is a review of the last results discussed in several recent conferences on LENR, aimed to give an overwiew of the state of the art of the experimentation to a diverse and non-specialistic audience interested in the energy production from Hydrogen. Some preliminary results from our entourage are showed as well.

One more 3-days Workshop, series ANV (Assisi Nel Vento), of Multidisciplinary Science (mainly: Energy, Medicine, Geology) was held in Assisi-Italy; part of the Workshop had even arguments related to Philosophy/History/Art/Religion. The reported event was the 8th edition (December 2021). One of the characteristics of such Workshop is that the time s...

The objective of this workshop was to explore compelling R&D opportunities in Low-Energy Nuclear Reactions (LENR), in support of developing metrics for a potential ARPA-E R&D program in LENR.

• Introduction. a) Sketch of reactor core: coiled constantan coil, with long and thin wire coated by Low Work Function (LWF) materials. Counter-electrode geometry . b) Hybrid glassy-Quartz/Alumina sheath, large surface area, LWF materials coated. c) Richardson equation and plot (i.e. electron emission at low pressures). d) Paschen plot (i.e. gas io...

This is a presentation held at the Committee on Nuclear Research and Innovative Reactors of the “Order of Engineers of the Province of Rome” on February the 9th 2021. It summarizes the main findings in the field of “Cold Fusion” occurred in the last 31 years with a focus to the research conducted at INFN-LNF. With respect to previous similar presen...

This is a presentation held at the International LERN Workshop in memory of Dr. Mahadeva Srinivasan, Kanpur-India, on January 22-24, 2021. It is divided in two parts, the first describes a new experimental setup for enhancing LENR phenomena in Constantan wires and it is an extension of what presented already at the Workshop “Assisi Nel Vento 5” (AN...

[Enriched version of the original presentation] This short presentation introduces an experimental design for the enhancement of the anomalous thermal phenomena (AHE) observed since 2011 in Constantan3 wires exposed to a deuterium or hydrogen atmosphere, and heated by direct current. In fact, the occurrence of AHE requires specific conditions such...

A) General overview of INFN-LNF experiments using Constantan wires and motivations. Several of key points shown at ICCF22 (September 8-13, 2019, Assisi-Italy), [DOI: 10.13140/RG.2.2.26669.64485]. B) Experimental evidence of the role of the Deuterium gas flux and electrical excitations, by unbiased collection and analysis of (our) over 80 tests/expe...

- Historical introduction with some key experiments, worldwide. - Some procedures to get AHE (INFN-LNF expertise). - Explanation of the role of the external FLUX of Hydrogen (and/or their isotopes) to induce “Anomalous Effects”, both thermal and/or nuclear, on specific materials (pure or alloys) properly loaded by Hydrogen itself, at the bulk or in...

This paper presents a summary and some deeper details about the experiments presented at the 22nd International Conference on Condensed Matter Nuclear Science (ICCF22). It reports on the experimental study of LENR phenomena in Constantan (Cu55 Ni44 Mn1) from its inception in 2011 to the most recent experiments. Using an empirical approach we identi...

Anomalous Heat Effects (AHE) have been observed in wires of Cu55Ni44Mn1 (Constantan) exposed to H2 and D2 in multiple experiments during the last eight years. Improvements in the magnitude and reproducibility of AHE, and improvements in wire preparation and reactor design were reported by the authors in the present and previous papers. The oxidatio...

Our group has been studying LENR phenomena in Constantan (Cu55 Ni44 Mn1) since 2011. In fact, this alloy captured our attention since it promotes efficiently the dissociation of molecular Deuterium (D2) or Hydrogen (H2) to the atomic state, followed by a remarkable absorption capability. Under certain conditions, this absorption is associated with...

In 2011, we introduced the use of constantan alloy in LENR, in the form of long and thin wires as a hydrogen dissociation promoter. We disclosed for the first time the reason for the choice of such material at IWAHLM-12 Workshop (2017), hypothesizing it was the initiator of the reaction in Andrea Rossi's experiment. We developed a specific treatmen...

Anomalous Heat Effects (AHE) have been observed in wires of Cu55Ni44Mn1 (Constantan) exposed to H2 and D2 in multiple experiments along the last 8 years. Improvements in the magnitude and reproducibility of AHE were reported by the Authors of the present work in the past and related to wire preparation and reactor design. In facts, an oxidation of...

In the frame of LENR field, we introduced in 2011 the use of Constantan alloy (in the form of long and thin wires) as a Hydrogen dissociation promoter. We have disclosed for the first time the reason for the choice of such material at IWAHLM-12 Workshop, hypothesizing it was the initiator of the reaction in Andrea Rossi’s experiment. We developed a...

Anomalous Heat Effects (AHE) have been observed in thin and long wires of Cu 55 Ni 44 Mn 1 (Constantan) exposed to H 2 and D 2 in multiple experiments along the last 8 years. Improvements in the magnitude and reproducibility of AHE were reported by the Authors of the present work in the past, and related to wire preparation and reactor design. In f...

Will be shown main steps aimed to identify the key parameters needed to get AHE (Anomalous Heat Effects) at high temperatures (>300°C) during the absorption/storage and flux of Deuterium gas in a specific alloy ( Constantan: Cu55_Ni44_Mn1), thin and long wire shaped, with surface at sub-micrometric dimensionality. Constantan is also coated by Low...

An unconventional research program has been initiated in 2011 aiming to increase both the magnitude and reproducibility of Anomalous Heat Effects (AHE) in the field of Low Energy Nuclear Reactions (LENR). The program focused on the study of Constantan, an alloy of Nickel and Copper (Cu55Ni44Mn1), instead of metals such as Pd, Ti, Ni that have been...

] Since 2011, at INFN-LNF, we investigated the behavior of Constantan (Cst) alloy (Cu 55 Ni 44 Mn 1 ; ISOTAN44) as concerns Hydrogen and/or Deuterium (H 2 /D 2) absorption and generation of Anomalous Heat Excess (AHE) at High Temperatures (HT, i.e.>>200 °C). To further improve the intrinsic, excellent, catalytic proprieties of Cst toward H 2 2H di...

Since 2011, we introduced into the LENR Research field, the use of a Constantan alloy to absorb and adsorb proper amounts of H2 or D2 (concentrated and/or mixed with noble gases of low thermal conductivity) and to generate thermal anomalies even at low temperatures (>200°C wire temperature). Based on this idea, we developed a reactor with a core of...

the improvements on Constantan-related experiments, started in 2011, in order to study the feasibility of new Nickel based alloys that are able to absorb proper amounts of Hydrogen (H2) and/or Deuterium (D2) and that have, in principle, some possibility to generate anomalous thermal effects at temperatures >100°C. The interest in Ni comes in part b...

At the National Institute of Nuclear Physics (Frascati National Laboratories), we focused, for over three years on methods to generate anomalous excess heat at temperatures (T) well over that allowed by unpressurised traditional electrolytic environments (by light or heavy water; T < 100°C). Our goal was to develop a device able to generate heat at...

We presents some improvements on the reactor presented at ICCF14 (Washington D.C. August 2008): use of long-thin Pd wires with nano-coated surfaces by multi-layers of several elements, loading with D2 at pressure 500°C; Stainless Steel (SS) reactor wall temperature

Large excess heat is measured in a Pd wire coated with nano-particles. A long (65 cm) and thin (50 m) Pd wire is coated with thin layers of Pd nano-particles, stabilized against self-sintering by the addition of selected chemical elements: the coating is adhered to the wire surface by heating it in air up to over 800°C. The wire is then heated wit...

There were improved measurements on our reactor presented at ICCF14 (2008): longthin Pd wires with surfaces nano-coated by multi-layers of several elements, D2 at P<10bar; wires temp. <500°C; SS reactor wall temperature <100°C; longitudinal current density up to 45 kA/cm2 (voltage drop up to 70V); transversal electric field up to 700V/cm. Previous...

On the basis of the Yoshiaki Arata's "sauna bath reactor", a simplified reactor (one chamber, without the second internal hollow Pd chamber were the material to be studied is filled) has been built, capable of operating at high pressures (100 bar) and at temperatures from -196 up to 350°C. With this instrument various Pd containing materials were t...