Exoès is a French

company A company, abbreviated as co., is a Legal personality, legal entity representing an association of people, whether Natural person, natural, Legal person, legal or a mixture of both, with a specific objective. Company members share a common p ...

based in the city of

Gradignan Gradignan (; oc-gsc, Gradinhan) is a commune in the Gironde department in southwestern France. It is a suburb of the city of Bordeaux and is located on its southwest side. Thus, it is a member of the Bordeaux Métropole. Population Educa ...

in the region of

Bordeaux Bordeaux ( , ; Gascon oc, Bordèu ; eu, Bordele; it, Bordò; es, Burdeos) is a port city on the river Garonne in the Gironde department, Southwestern France. It is the capital of the Nouvelle-Aquitaine region, as well as the prefectur ...

. Exoès was founded by Arnaud Desrentes, Rémi Daccord, and Thiébaut Kientz. It targets

renewable energy Renewable energy is energy that is collected from renewable resources that are naturally replenished on a human timescale. It includes sources such as sunlight, wind, the movement of water, and geothermal heat. Although most renewable energy ...

and

energy efficiency Energy efficiency may refer to: * Energy efficiency (physics), the ratio between the useful output and input of an energy conversion process ** Electrical efficiency, useful power output per electrical power consumed ** Mechanical efficiency, a ra ...

. It specializes in the transformation of

heat In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary. A thermodynamic system does not ''contain'' heat. Nevertheless, the term is al ...

into power, such as

mechanical Mechanical may refer to: Machine * Machine (mechanical), a system of mechanisms that shape the actuator input to achieve a specific application of output forces and movement * Mechanical calculator, a device used to perform the basic operations of ...

electric energy Electrical energy is energy related to forces on electrically charged particles and the movement of electrically charged particles (often electrons in wires, but not always). This energy is supplied by the combination of electric current and electr ...

via the

Rankine cycle The Rankine cycle is an idealized thermodynamic cycle describing the process by which certain heat engines, such as steam turbines or reciprocating steam engines, allow mechanical work to be extracted from a fluid as it moves between a heat sourc ...

s. The company is supported by BPI France, ADEME, the European funds (FEDER), the French

Ministry of Higher Education and Research The Minister of Higher Education and Research (formerly Minister of Higher Education, Research and Innovation or ) is a cabinet position in the French Government overseeing university-level education and research. The ministry is headquartered ...

, and the

Aquitaine Aquitaine ( , , ; oc, Aquitània ; eu, Akitania; Poitevin-Saintongeais: ''Aguiéne''), archaic Guyenne or Guienne ( oc, Guiana), is a historical region of southwestern France and a former administrative region of the country. Since 1 January ...

and

Poitou-Charentes Poitou-Charentes (; oc, Peitau-Charantas; Poitevin-Saintongese: ) is a former administrative region on the southwest coast of France. It is part of the new region Nouvelle-Aquitaine. It comprises four departments: Charente, Charente-Maritime, D ...

regions.

History

In November 2011, Exoès established offices in

. In July 2011, the company raised 1.1 million

Euro The euro ( symbol: €; code: EUR) is the official currency of 19 out of the member states of the European Union (EU). This group of states is known as the eurozone or, officially, the euro area, and includes about 340 million citizens . ...

s. On the 18 November 2013, Exoès signed with

Tenneco Tenneco (formerly Tenneco Automotive and originally Tennessee Gas Transmission Company) is an American automotive components original equipment manufacturer and an aftermarket ride control and emissions products manufacturer. It is a Fortune 50 ...

, the world’s second largest

exhaust system An exhaust system is used to guide reaction exhaust gases away from a controlled combustion inside an engine or stove. The entire system conveys burnt gases from the engine and includes one or more exhaust pipes. Depending on the overall system ...

supplier. Tenneco chose Exoès to work on a solution for an

exhaust heat recovery system An exhaust heat recovery system turns waste heat energy in exhaust gases into electric energy for batteries or mechanical energy reintroduced on the crankshaft. The technology is of increasing interest as car and heavy-duty vehicle manufacturers c ...

based on the Rankine systems.

Products

EVE (Energy Via Exhaust)

Exoès developed a solution to recover

energy In physics, energy (from Ancient Greek: ἐνέργεια, ''enérgeia'', “activity”) is the quantitative property that is transferred to a body or to a physical system, recognizable in the performance of work and in the form of heat a ...

contained in the hot gases expelled from the

exhaust Exhaust, exhaustive, or exhaustion may refer to: Law *Exhaustion of intellectual property rights, limits to intellectual property rights in patent and copyright law **Exhaustion doctrine, in patent law ** Exhaustion doctrine under U.S. law, in p ...

pipe of a

vehicle A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles (trains, trams), wa ...

. Their product, EVE, results in potential fuel savings for all vehicles that have a thermal engine. EVE is a form of

heat exchanger A heat exchanger is a system used to transfer heat between a source and a working fluid. Heat exchangers are used in both cooling and heating processes. The fluids may be separated by a solid wall to prevent mixing or they may be in direct contac ...

that is installed on the exhaust pipe. A pressurized liquid is pumped through this exchanger where the high temperature causes it to vaporize. The vaporized liquid pushes a compact piston that powers an

alternator An alternator is an electrical generator that converts mechanical energy to electrical energy in the form of alternating current. For reasons of cost and simplicity, most alternators use a rotating magnetic field with a stationary armature.Go ...

and creates

electricity Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described ...

. The system is the size of an

air conditioning Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling ...

compressor. Using the generated

, the

has the ability to move the first 100 meters entirely with electricity.

SHAPE Solar

The company developed SHAPE Solar (Sustainable Heat And Power Engine), a

power plant A power station, also referred to as a power plant and sometimes generating station or generating plant, is an industrial facility for the generation of electric power. Power stations are generally connected to an electrical grid. Many pow ...

system on a domestic scale capable of simultaneously producing electricity and heat. To accomplish this, the power plant uses a Rankine engine. A solar concentration power plant consists of mirrors that concentrate the sun’s rays to create a high temperature. At the beginning of the cycle, the heat radiates from the

solar power plant A photovoltaic power station, also known as a solar park, solar farm, or solar power plant, is a large-scale grid-connected photovoltaic power system (PV system) designed for the supply of merchant power. They are different from most building- ...

and warms a fluid by a thermal exchange which transformed into pressurized

steam Steam is a substance containing water in the gas phase, and sometimes also an aerosol of liquid water droplets, or air. This may occur due to evaporation or due to boiling, where heat is applied until water reaches the enthalpy of vaporization ...

. The fluid is then directed towards the SHAPE engine. This pressurized steam generates electricity using an alternator. At the engine outlet, the steam is directed towards a

, which is coupled to a hot water network. At the end of the circuit, the steam returns to a liquid state and is injected back into the solar field. The heat from the solar field vaporizes the newly condensed water and injects it back into the engine, allowing the cycle to repeat.

Awards and recognition

This process is a 2010 Prize-winner of the national competition of the

in the Creation Development category. This process garnered trophies at the 2011

eco-industries competition and a trophy of innovation from the CGPME in the first edition of Innov' CGPME.Sébastien Ackermann
"BASE - Lauréat des trophées Innov-CGPME"
''Base Innovation'', November 29, 2012.

References

{{DEFAULTSORT:Exoes Energy companies of France