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Sensor de flujo térmico fiable y robusto para motores de combustión, chorros de llamas y plantas de incineración

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TOCH20160915001
Publicado:
13/10/2016
Caducidad:
13/10/2017
Resumen:
Una universidad suiza ofrece un sensor de flujo térmico para motores de combustión, control de chorros de llamas, plantas de incineración y experimentos con agua supercrítica. El sensor detecta el flujo térmico bajo condiciones extremas. A diferencia de los sensores actuales, este sensor mide de forma precisa el flujo térmico desde una fuente de calor intensa y temporalmente fluctuante, y su integración es sencilla gracias a sus dimensiones flexibles. La universidad busca un socio para desarrollar un producto industrial a partir del prototipo y lanzar el sensor al mercado. El objetivo es establecer acuerdos de licencia.

Details

Tittle:
Reliable, robust heat flux sensor for combustion engines, flame jets and incineration plants
Summary:
A Swiss university of technology offers a robust heat flux sensor for applications in combustion engines, flame jets, incineration plants and similar. The sensor can detect heat flux under extreme conditions. Unlike existing sensors it measures heat flux from an intense and temporally fluctuating heat source accurately and can easily be integrated into existing mounts. A licensing partner who develops the prototype to an industrial product and introduces the sensor to the market is sought.
Description:
A typical problem for a conventional heat flux sensor, e.g. Gardon gauge or transverse heat flux sensor, is the reliability of the measurement when the heat flux has a non-uniform distribution over the sensor surface or the sensor is not centered with respect to the heat flux source. Other sensors, e.g. Slug-calorimeter, require special electronics or affect the temperature distribution of the probe material, e.g. water cooled calorimeter, or cannot withstand thermal stresses in harsh conditions, e.g. thermopile. None of the aforementioned sensors are useful for the measurement of the heat flux from an intense and temporally fluctuating heat source producing an asymmetric heat flux with respect to the sensing element.

Detailed Description
The sensor developed by a Swiss university is chemically resistant, mechanically robust and has low thermal inertia. Currently there are no sensors on the market for the accurate measurement of the heat flux from an intense and temporally fluctuating heat source producing an asymmetric heat flux with respect to the sensing element. The design of the sensor is simple and robust and can easily be integrated into existing mounts.
It uses a modified differential thermocouple for the heat flux measurement. Thermocouples rely on the Seebeck effect, where an electrical potential can be measured when two different metals are brought into contact. The effect is temperature dependent. The invention is a sensing element built with two or more thermoelectrical junctions. The signal from these junctions can be acquired individually or manipulated to obtain their difference. An insulator separates electrically the sensing element from its external environment (see figure).

Using the appropriate electronics, the sensor is able to detect heat flux as the one produced by the thumb of a human being (37°C) pressed on its surface initially at room temperature (25°C). The same sensor can also be exposed to the highly exothermic flame-jet produced by the fast oxidation of acetylene with pure oxygen (> 1000°C).

Application
· Measurements in incineration plants
· Monitoring aircraft engines
· Control of flame jets
· Experiments with supercritical water

Partnership
A licensing partner is sought in the sensor market who supplies the different markets. The industrial partner will have access to the existing prototypes from the university lab and is expected to develop the prototype to an industrial product and introduce the sensor to the market (e.g. for incineration plants, aircraft engines, flame jets, ...).

Advantages and Innovations:
Detection of heat flux under extreme conditions:
· Temperature: -180 - 1200 degree Celsius
· Robust and simple design
· Easy integration into existing mounts and set-ups due to the flexible dimension of the sensor
· accurate measurement of the heat flux from an intense and temporally fluctuating heat source producing an asymmetric heat flux with respect to the sensing element. Currently there are no such sensors on the market
· the sensor is not powered, meaning it is fail-safe and there is no risk of electrical breakdown related to a faulty sensor
Stage of Development:
Prototype available for demonstration
IPs:
Patent(s) applied for but not yet granted
CommeR Statunts Regarding IPR Status:
patent pending (PCT)

Partner sought

Type and Role of Partner Sought:
The specific area of activity of the partner:
- Developer and manufacturer of sensors

The tasks to be performed by the partner sought:
- develop the prototype to an industrial and marketable product
- introduce the new product to the market (e.g. for incineration plants, aircraft engines, flame jets or similar)

Client

Type and Size of Client:
University
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
German

Keywords

Technology Keywords:
04008001 Combustión, llamas
10003002 Incineración y pirólisis
02011006 Propulsión
09001009 Tecnología de sensores relacionada con la realización de medidas