Patents by Inventor Nathalie Mazet
Nathalie Mazet has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11604034Abstract: The present invention concerns a method of refrigerating a housing to a target temperature according to which: an evaporator is placed in said housing; said evaporator is placed in fluid communication with a thermochemical reactor Ri, simultaneously, the heat produced at said reactor Ri is evacuated; Characteristically, at least n>1 other thermochemical reactors are provided; I) the pressure Pevi in said evaporator after it is placed in fluid communication with said thermochemical reactor Ri, and the temperature of said thermochemical reactor Ri connected to said evaporator, are determined; II) when the temperature difference DTRi between the temperature of said reactor Ri connected to said evaporator and the equilibrium temperature TeSi of said reactive mixture contained in said thermochemical reactor Ri at the pressure Pevi of said evaporator is equal to a first predetermined differential and/or when the temperature difference DTev between said evaporator and the interior of said housing is equType: GrantFiled: September 7, 2018Date of Patent: March 14, 2023Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Aleix Pubill, Laurent Rigaud, David Tadiotto, Driss Stitou, Nathalie Mazet
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Patent number: 10989484Abstract: Disclosed is an installation for generating electricity from a heat source, for disconnecting the production of electricity from the source of heat. The main characteristic of such installation is that it includes a thermochemical storage device coupled to a power cycle, the storage device consisting of a reactor in which produces a reversible sorption process and an evaporator and a condenser, at least one of the components of the thermochemical device being coupled mass and/or thermal to at least one element of the power cycle.Type: GrantFiled: December 18, 2017Date of Patent: April 27, 2021Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE NANTESInventors: Nathalie Mazet, Sylvain Mauran, Pierre Neveu, Driss Stitou, Lingai Luo, Yilin Fan
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Patent number: 10874985Abstract: A system for purifying a treated liquid, including: a treatment module, for treating the liquid and providing a purified liquid, and a residual liquid; and a means for pressurizing said treated liquid to supply said treatment module, including: a master cylinder, driven by a working fluid, and at least slave cylinder, driven by said master cylinder, receiving said treated liquid and supplying it to said treatment module; a cross section of said master cylinder is greater than a cross section of said slave cylinder so that, a greater pressure is generated on the treated liquid in the slave cylinder; and a means for pre-pressurizing the treated liquid, upstream of the pressurizing means, including: at least one master cylinder, connected to the treatment module, and driven by the residual liquid, and a slave cylinder, containing the treated liquid, driven by said master cylinder.Type: GrantFiled: November 22, 2017Date of Patent: December 29, 2020Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Driss Stitou, Nathalie Mazet, Sylvain Mauran
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Publication number: 20200292247Abstract: The present invention concerns a method of refrigerating a housing to a target temperature according to which: an evaporator is placed in said housing; said evaporator is placed in fluid communication with a thermochemical reactor Ri, simultaneously, the heat produced at said reactor Ri is evacuated; Characteristically, at least n>1 other thermochemical reactors are provided; I) the pressure Pevi in said evaporator after it is placed in fluid communication with said thermochemical reactor Ri, and the temperature of said thermochemical reactor Ri connected to said evaporator, are determined; II) when the temperature difference DTRi between the temperature of said reactor Ri connected to said evaporator and the equilibrium temperature TeSi of said reactive mixture contained in said thermochemical reactor Ri at the pressure Pevi of said evaporator is equal to a first predetermined differential and/or when the temperature difference DTev between said evaporator and the interior of said housing is equType: ApplicationFiled: September 7, 2018Publication date: September 17, 2020Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Aleix PUBILL, Laurent RIGAUD, David TADIOTTO, Driss STITOU, Nathalie MAZET
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Publication number: 20190390920Abstract: Disclosed is an installation for generating electricity from a heat source, for disconnecting the production of electricity from the source of heat. The main characteristic of such installation is that it includes a thermochemical storage device coupled to a power cycle, the storage device consisting of a reactor in which produces a reversible sorption process and an evaporator and a condenser, at least one of the components of the thermochemical device being coupled mass and/or thermal to at least one element of the power cycle.Type: ApplicationFiled: December 18, 2017Publication date: December 26, 2019Inventors: Nathalie MAZET, Sylvain MAURAN, Pierre NEVEU, Driss STITOU, Lingai LUO, Yilin FAN
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Publication number: 20190366271Abstract: A system for purifying a treated liquid, including: a treatment module, for treating the liquid and providing a purified liquid, and a residual liquid; and a means for pressurizing said treated liquid to supply said treatment module, including: a master cylinder, driven by a working fluid, and at least slave cylinder, driven by said master cylinder, receiving said treated liquid and supplying it to said treatment module; a cross section of said master cylinder is greater than a cross section of said slave cylinder so that, a greater pressure is generated on the treated liquid in the slave cylinder; and a means for pre-pressurizing the treated liquid, upstream of the pressurizing means, including: at least one master cylinder, connected to the treatment module, and driven by the residual liquid, and a slave cylinder, containing the treated liquid, driven by said master cylinder.Type: ApplicationFiled: November 22, 2017Publication date: December 5, 2019Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Driss STITOU, Nathalie MAZET, Sylvain MAURAN
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Publication number: 20180100676Abstract: A device is provided for the autonomous production of refrigeration approximately 40° C. lower than ambient temperature from a low-temperature solar thermal source, the device including: (i) a reactor arranged to cool and/or heat the solid reagent; (ii) a condenser; (iii) a first tank for storing the liquid refrigerant at ambient temperature; (iv) an enclosure arranged to store a phase-change material and also including an evaporator; (v) a second tank for storing the liquid refrigerant at a low temperature; (vi) apparatus for conveying the refrigerant and (vii) apparatus for controlling the flow of the refrigerant.Type: ApplicationFiled: March 23, 2016Publication date: April 12, 2018Inventors: Driss STITOU, Sylvain MAURAN, Nathalie MAZET
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Patent number: 9599371Abstract: An installation for the production of cold and/or heat has a driving and a receiving machine. The driving machine has means for circulating a working fluid GM, an evaporator EM, at least one transfer cylinder CTM that contains a transfer liquid LT in a lower part and the working fluid GM liquid and/or vapor form above the transfer liquid, a condenser CM, at least one device BSM for separating the liquid and vapor phases of the working fluid GM, and a device for compressing the working fluid GM to the liquid state.Type: GrantFiled: March 25, 2010Date of Patent: March 21, 2017Assignee: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Sylvain Mauran, Nathalie Mazet, Pierre Neveu, Driss Stitou
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Patent number: 8794003Abstract: A plant for the producing of cold, heat and/or work. The plant includes at least one modified Carnot machine having a first assembly that includes an evaporator Evap combined with a heat source, a condenser Cond combined with a heat sink, a device DPD for pressurizing or expanding a working fluid GT, a means for transferring said working fluid GT between the condenser Cond and DPD, and between the evaporator Evap and DPD; a second assembly that includes two transfer vessels CT and CT? that contain a transfer liquid LT and the working fluid GT in the form of liquid and/or vapor; a means for selectively transferring the working fluid GT between the condenser Cond and each of the transfer vessels CT and CT?, as well as between the evaporator Evap and each of the transfer enclosures CT and CT?; and a means for selectively transferring the liquid LT between the transfer vessels CT and CT? and the compression or expansion device DPD, said means including at eat hydraulic converter.Type: GrantFiled: March 30, 2009Date of Patent: August 5, 2014Assignee: Centre National de la Recherche ScientifiqueInventors: Sylvain Mauran, Nathalie Mazet, Pierre Neveu, Driss Stitou
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Patent number: 8327660Abstract: The invention relates to a thermochemical device and to a method for producing refrigeration at very low temperature. The device produces refrigeration at a temperature Tf<?20° C., from an available heat source at a temperature Th of 60-80° C. and a heat sink at the ambient temperature To of 10° C.-25° C. It comprises two coupled dipoles, operating in phase opposition. The thermochemical phenomena in one of the dipoles are such that this dipole may produce refrigeration at Tf with a heat sink at the ambient temperature To. The thermochemical phenomena in the other dipole are such that this dipole may be regenerated from the heat source Th and a heat sink at the temperature To.Type: GrantFiled: November 4, 2005Date of Patent: December 11, 2012Assignee: Centre National de la Recherche ScientifiqueInventors: Driss Stitou, Nathalie Mazet, Bernard Spinner, Caroline Spinner Brossard, legal representative, Anne Christel Spinner Kohler, legal representative, Bruno Spinner, legal representative, Martin Spinner, legal representative, Camille Spinner, legal representative
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Publication number: 20120067067Abstract: An installation for the production of cold and/or heat has a driving and a receiving machine. The driving machine has means for circulating a working fluid GM, an evaporator EM, at least one transfer cylinder CTM that contains a transfer liquid LT in a lower part and the working fluid GM liquid and/or vapor form above the transfer liquid, a condenser CM, at least one device BSM for separating the liquid and vapor phases of the working fluid GM, and a device for compressing the working fluid GM to the liquid state.Type: ApplicationFiled: March 25, 2010Publication date: March 22, 2012Inventors: Sylvain Mauran, Nathalie Mazet, Pierre Neveu, Driss Stitou
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Publication number: 20110167825Abstract: A plant for the producing of cold, heat and/or work. The plant includes at least one modified Carnot machine having a first assembly that includes an evaporator Evap combined with a heat source, a condenser Cond combined with a heat sink, a device DPD for pressurizing or expanding a working fluid GT, a means for transferring said working fluid GT between the condenser Cond and DPD, and between the evaporator Evap and DPD; a second assembly that includes two transfer vessels CT and CT? that contain a transfer liquid LT and the working fluid GT in the form of liquid and/or vapor; a means for selectively transferring the working fluid GT between the condenser Cond and each of the transfer vessels CT and CT?, as well as between the evaporator Evap and each of the transfer enclosures CT and CT?; and a means for selectively transferring the liquid LT between the transfer vessels CT and CT? and the compression or expansion device DPD, said means including at eat hydraulic converter.Type: ApplicationFiled: March 30, 2009Publication date: July 14, 2011Inventors: Sylvain Mauran, Nathalie Mazet, Pierre Neveu, Driss Stitou
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Patent number: 7775066Abstract: The invention relates to refrigeration using a thermochemical system based on the coupling of two reversible physico-chemical phenomena between a gas and a solid or liquid sorbent, one at low temperature (the LT phenomenon) and the other at a higher temperature (the HT phenomenon). The LT phenomenon is a liquid/gas phase change of the fluid G or an absorption of the fluid G by a liquid sorbent. The HT phenomenon is a reversible sorption of the fluid G by a liquid or solid sorbent. The endothermic phase of the LT phenomenon takes place in a reactor thermally isolated from the ambient environment. The exothermic phase of the LT phenomenon takes place in a condenser in communication with the reactor in which the HT phenomenon takes place, the condensed fluid G then being transferred to the reactor in which the endothermic phase of the LT phenomenon takes place.Type: GrantFiled: March 12, 2004Date of Patent: August 17, 2010Assignee: Centre National de la Recherche ScientifiqueInventors: Driss Stitou, Olivier Bertrand, Bernard Spinner, Bruno Spinner, legal representative, Caroline Spinner Brossard, legal representative, Anne Christel Spinner Kohler, legal representative, Nathalie Mazet, legal representative, Martin Spinner, legal representative
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Publication number: 20090199578Abstract: The invention relates to a thermochemical device and to a method for producing refrigeration at very low temperature. The device produces refrigeration at a temperature Tf<?20° C., from an available heat source at a temperature Th of 60-80° C. and a heat sink at the ambient temperature To of 10° C.-25° C. It comprises two coupled dipoles, operating in phase. One of the dipoles may be regenerated from a heat source at the temperature Th and a heat sink at To, and produce refrigeration at the temperature Tf with a heat sink at a temperature below the ambient temperature To. The other dipole may be regenerated from a heat source at the temperature Th and a heat sink at the temperature To.Type: ApplicationFiled: November 3, 2005Publication date: August 13, 2009Inventors: Driss Stitou, Nathalie Mazet, Bernard Spinner, Caroline Spinner Brossard, Anne Christel Spinner Kohler, Bruno Spinner, Martin Spinner, Camille Spinner
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Publication number: 20090094996Abstract: The invention relates to a thermochemical device and to a method for producing refrigeration at very low temperature. The device produces refrigeration at a temperature Tf<?20° C., from an available heat source at a temperature Th of 60-80° C. and a heat sink at the ambient temperature To of 10° C.-25° C. It comprises two coupled dipoles, operating in phase opposition. The thermochemical phenomena in one of the dipoles are such that this dipole may produce refrigeration at Tf with a heat sink at the ambient temperature To. The thermochemical phenomena in the other dipole are such that this dipole may be regenerated from the heat source Th and a heat sink-at the temperature To.Type: ApplicationFiled: November 4, 2005Publication date: April 16, 2009Inventors: Driss Stitou, Nathalie Mazet, Bernard Spinner, Caroline Spinner Brossard, Anne Christel Spinner Kohler, Bruno Spinner, Martin Spinner, Camille Spinner
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Publication number: 20080202132Abstract: The invention relates to refrigeration using a thermochemical system based on the coupling of two reversible physico-chemical phenomena between a gas and a solid or liquid sorbent, one at low temperature (the LT phenomenon) and the other at a higher temperature (the HT phenomenon). The LT phenomenon is a liquid/gas phase change of the fluid G or an absorption of the fluid G by a liquid sorbent. The HT phenomenon is a reversible sorption of the fluid G by a liquid or solid sorbent. The endothermic phase of the LT phenomenon takes place in a reactor thermally isolated from the ambient environment. The exothermic phase of the LT phenomenon takes place in a condenser in communication with the reactor in which the HT phenomenon takes place, the condensed fluid G then being transferred to the reactor in which the endothermic phase of the LT phenomenon takes place.Type: ApplicationFiled: March 12, 2004Publication date: August 28, 2008Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUEInventors: Driss Stitou, Olivier Bertrand, Bernard Spinner, Bruno Spinner, Caroline Spinner Brossard, Anne Christel Spinner Kohler, Nathalie Mazet, Martin Spinner
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Patent number: 4784217Abstract: Thermotransformer for storing and unstoring heat with a double raise in thermal potential by performing thermo-chemical processes that present Clapeyron curves that intersect in the temperature range involved, this device being applicable to heat pumps and the handling of thermal energy.Type: GrantFiled: June 2, 1986Date of Patent: November 15, 1988Assignee: Societe Nationale Elf AquitaineInventors: Didier Payre, Nathalie Mazet, Sylvain Mauran, Bernard Spinner