Patents by Inventor Daniel Favrat
Daniel Favrat 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: 11965659Abstract: The invention concerns a district energy system comprising: —at least one cogeneration or heat pump unit —a first pipe system for district heating and/or cooling consisting of at least one liquid or vapor CO2 pipe; characterized by the fact that is also comprises a second pipe system consisting of at least one fluid line for the transport of CO2 or O2. The invention also relates to the use of a district energy system comprising: —at least one cogeneration or heat pump unit, —a first pipe system, —a second pipe system; characterized by the fact that that liquid or vapor CO2 is used in the first pipe system for district heating and/or cooling and that a fluid of CO2 or O2 is used in the second pipe system.Type: GrantFiled: January 8, 2021Date of Patent: April 23, 2024Assignee: ExerGo SAInventors: Daniel Favrat, Alberto Mian
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Publication number: 20230039702Abstract: The invention concerns a district energy system comprising: - at least one cogeneration or heat pump unit, - a first pipe system for district heating and/or cooling consisting of at least one liquid or vapor CO2 pipe; characterized by the fact that is also comprises a second pipe system consisting of at least one fluid line for the transport of CO2 or O2. The invention also relates to the use of a district energy system comprising: - at least one cogeneration or heat pump unit, - a first pipe system, - a second pipe system; characterized by the fact that that liquid or vapor CO2 is used in the first pipe system for district heating and/or cooling and that a fluid of CO2 or O2 is used in the second pipe system.Type: ApplicationFiled: January 8, 2021Publication date: February 9, 2023Inventors: Daniel Favrat, Alberto Mian
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Patent number: 10654738Abstract: Apparatus for salt separation (2) under supercritical water conditions, comprising a heat exchanger (4) and a fluidized bed reactor (6). The fluidized bed reactor comprising a supercritical water pressure containing wall (8) defining therein a fluidized bed chamber (10) connected to an inlet system (16) at one end thereof and an outlet system (18) configured to separate solids from supercritical fluid at another end thereof. The fluidized bed chamber receives a fluidized bed (12) therein and is configured to receive through the inlet system (16) a liquefied aqueous substance (14) for treatment in the fluidized bed chamber. The inlet system (16) comprises an inlet chamber (20) and a fluidization plate (22) positioned between the inlet chamber (20) and the fluidized bed chamber (10).Type: GrantFiled: January 13, 2016Date of Patent: May 19, 2020Assignee: Ecole Polytechnique Foderale De Lausanne (EPFL)Inventors: Daniel Favrat, François Marechal, Alberto Mian, Adriano Viana Ensinas
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Publication number: 20180009692Abstract: Apparatus for salt separation (2) under supercritical water conditions, comprising a heat exchanger (4) and a fluidized bed reactor (6). The fluidized bed reactor comprising a supercritical water pressure containing wall (8) defining therein a fluidized bed chamber (10) connected to an inlet system (16) at one end thereof and an outlet system (18) configured to separate solids from supercritical fluid at another end thereof. The fluidized bed chamber receives a fluidized bed (12) therein and is configured to receive through the inlet system (16) a liquefied aqueous substance (14) for treatment in the fluidized bed chamber. The inlet system (16) comprises an inlet chamber (20) and a fluidization plate (22) positioned between the inlet chamber (20) and the fluidized bed chamber (10).Type: ApplicationFiled: January 13, 2016Publication date: January 11, 2018Applicant: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Daniel Favrat, François Marechal, Alberto Mian, Adriano Viana Ensinas
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Patent number: 9228494Abstract: A new gas turbine-fuel cell Hybrid Cycle is proposed. The fuel cell advantageously operates close or under atmospheric pressure and is fully integrated with the gas turbine that is based on an Inverted Brayton-Joule Cycle. The idea of the invention is to capitalize on the intrinsic oxygen-nitrogen separation characteristic of the fuel cell electrolyte by sending to the Inverted Brayton-Joule Cycle only the anodic flow, which is the one free of nitrogen. In this way the flow that expands in the turbine consists only in steam and carbon dioxide. After the expansion the steam can be easily condensed, separated and pumped up. Therefore the compressor has mainly only to compress the separated carbon dioxide. This effect generates a substantial advantage in term of efficiency and enables separating the carbon dioxide.Type: GrantFiled: June 9, 2010Date of Patent: January 5, 2016Assignee: ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL)Inventors: Emanuele Facchinetti, Daniel Favrat, François Marechal
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Patent number: 8378521Abstract: Different types of energy storage systems are described, in particular hydro-pneumatic storage systems. In one, energy is stored by compressing gas in a chamber (44,45,54,55) with a liquid piston and released by gas expansion. A spray head or grid at the top of the chamber (44,45,54,55) supplies liquid as a shower through the gas being compressed or expanding in the cylinder (11,12) to maintain an isothermal condition. In another, energy is stored from an array of solar cells connected to an array of supercapacitors forming an auxiliary storage, and a main energy storage device such as a hydro-pneumatic storage system, for supply to an AC or DC network. The efficiency is improved by connecting the solar cells via the array of supercapacitors to the AC or DC network.Type: GrantFiled: May 9, 2007Date of Patent: February 19, 2013Assignee: Ecole Polytechnique Federale de Lausanna (EPFL)Inventors: Alfred Rufer, Daniel Favrat, Philippe Barrade, Sylvain Lemofouet
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Publication number: 20120117979Abstract: A new gas turbine-fuel cell Hybrid Cycle is proposed. The fuel cell advantageously operates close or under atmospheric pressure and is fully integrated with the gas turbine that is based on an Inverted Brayton-Joule Cycle. The idea of the invention is to capitalize on the intrinsic oxygen-nitrogen separation characteristic of the fuel cell electrolyte by sending to the Inverted Brayton-Joule Cycle only the anodic flow, which is the one free of nitrogen. In this way the flow that expands in the turbine consists only in steam and carbon dioxide. After the expansion the steam can be easily condensed, separated and pumped up. Therefore the compressor has mainly only to compress the separated carbon dioxide. This effect generates a substantial advantage in term of efficiency and enables separating the carbon dioxide.Type: ApplicationFiled: June 9, 2010Publication date: May 17, 2012Inventors: Emanuele Facchinetti, Daniel Favrat, Francis Marechal
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Publication number: 20100133903Abstract: Different types of energy storage systems are described, in particular hydro-pneumatic storage systems. In one, energy is stored by compressing gas in a chamber (44,45,54,55) with a liquid piston and released by gas expansion. A spray head or grid at the top of the chamber (44,45,54,55) supplies liquid as a shower through the gas being compressed or expanding in the cylinder (11,12) to maintain an isothermal condition. In another, energy is stored from an array of solar cells connected to an array of supercapacitors forming an auxiliary storage, and a main energy storage device such as a hydro-pneumatic storage system, for supply to an AC or DC network. The efficiency is improved by connecting the solar cells via the array of supercapacitors to the AC or DC network.Type: ApplicationFiled: May 9, 2007Publication date: June 3, 2010Inventors: Alfred Rufer, Daniel Favrat, Philippe Barrade, Sylvain Lemofouet
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Patent number: 7663255Abstract: Disclosed are a compressed air energy-storing electricity generating system and an electricity generating method using the same, in which air of a high pressure is injected into a tank laid under the ground using midnight electricity and surplus produced electricity, and the air of the high pressure in the tank is uniformly discharged so as to drive a generator during a time period when the consumption of electric power is high, thus efficiently managing energy.Type: GrantFiled: August 16, 2007Date of Patent: February 16, 2010Assignee: Korea Institute of Machinery & MaterialsInventors: Yeong-min Kim, Daniel Favrat, Dong-gil Sin, Kyu-baek Cho
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Publication number: 20100018668Abstract: District energy system comprising a pipe system, end user's locations, and an optional plant for transferring an energy transfer medium between said end user's locations and/or between said optional plant and said end user's locations, characterized by the fact that said energy transfer medium is CO2.Type: ApplicationFiled: February 16, 2008Publication date: January 28, 2010Inventors: Daniel Favrat, Céline Weber
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Publication number: 20090200805Abstract: Disclosed are a compressed air energy-storing electricity generating system and an electricity generating method using the same, in which air of a high pressure is injected into a tank laid under the ground using midnight electricity and surplus produced electricity, and the air of the high pressure in the tank is uniformly discharged so as to drive a generator during a time period when the consumption of electric power is high, thus efficiently managing energy.Type: ApplicationFiled: August 16, 2007Publication date: August 13, 2009Applicant: KOREA INSTITUTE OF MACHINERY & MATERIALSInventors: Yeong-min Kim, Daniel Favrat, Dong-gil Sin, Kyu-baek Cho