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Ultra-wet Gas Turbine


01.03.2012 | Ref.Nr. 09139
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Physics&Engineering

Background
We offer a method to improve the passive scalar homogenization of mixing fluidic jets in cross flow configurations especially within the combustion chamber of a turbine. This is achieved by using fluidic oscillators that create an oscillating or pulsating fluid flow at the oscillator exit due to their way of construction. By this improved method high amounts of steam can be added to the combustion process and thus significantly increase the level of efficiency.

The oscillation frequency of the injected fuel is thereby regulated only by the mass feed of the supplied fluid.
The combination of cross flow injection and oscillation/pulsation of the fluid flow increases primarily the mixing ration of the two fluid flows within a combustion chamber (fluid & air) and moreover leads to a more effective burning.
The fluidic actuators can be installed within new (gas) turbines but can also be integrated in already existing ones.

IP Rights
PCT application filed

Patent Owner
Technische Universität Berlin
Application Area:
The proposed method can be used in all known application fields of (gas) turbines. The fluidics can be installed with new turbines but can also be integrated in already existing systems.
Development Stage: Lab level
Schlagworte: combustion, cross flow, fluid mixture, fluidics, oscillator, turbine,
Weitere Kategorien: Energy, Environment engineering, Machine & Plant Technology, Traffic engineering, Physics & Engineering
Bild des Benutzers Jeanne Trommer
Licensing Manager: Jeanne Trommer
T +49 30 2125 4831
F +49 30 2125 4822
jeanne.trommer@ipal.de
Benefits:
  • Better temporal homogenization: NOx reduction, improved fuel value
  • Pressure loss in turbine is reduced: enhancing performance rate
  • Decrease of mixing length by ca. 50%: turbines could be build smaller
  • Fluidic oscillators require less maintenance
  • Usage of nearly any gaseous fuels
  • Increased macro- and micromixing phenomena: higher gains in mixing quality

Autonomous Service Robot for Vacuuming Floors


19.03.2010 | Ref.Nr. 05036
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Physics&Engineering

A new exploration method for mobile robots is especially suitable for home and office environments. The robot also provides a flexible cleaning system, allowing adaptation to any kind of floor surface with any kind of obstacle and avoiding unnecessary repeat cleaning of the same area.

Self-localisation means that the method does not require a precise global map, nor does it rely on external markers located in the rooms or areas to be cleaned. Instead, the robot creates its own rough map by scanning the environment, so that the map comprises every obstacle which the robot can then avoid. Iterative scanning allows adaptation to arbitrary obstacles.

 

At each cleaning the surrounding area is scanned and simultaneously cleaned using an extendible arm with changeable cleaning elements. This new approach allows the robot to clean any floor space fast and thoroughly, while using little power.

By using standard microcontrollers the cost of robotic vacuum cleaners is affordable for personal use, as demonstrated by a fully-functional prototype.

IP Rights
German Patent DE 19 916 427 B4
European Patent Application EP 10 98 587 A1
US Patent US 6,370,453 B2

Origin
Beuth Hochschule für Technik Berlin, Germany

 

Application Area:
Consumer Robots, Machine manufacturing
Development Stage: Prototyp
Type of Collaboration: License, Sale, Cooperation
Schlagworte: Cleaning, Mobile Robot, Vacuum Cleaner,
Weitere Kategorien: Environment engineering, Machine & Plant Technology, Physics & Engineering
Bild des Benutzers Dr. Kirk Haselton
Licensing Manager: Dr. Kirk Haselton
T +49 30 2125 4842
F +49 30 2125 4822
kirk.haselton@ipal.de
Market Potential: Worldwide
Benefits:
  • Self-control of a robotic vacuum cleaner
  • Automatic control and scanning mechanism
  • Automatic creation of a global map
  • Self-localisation
  • Extendible arm for flexible cleaning
  • Sensitive bumper including a contact sensor
  • Changeable brushes

Optimized Dehumidification Control Loop


10.12.2009 | Ref.Nr. 08125
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Physics&Engineering

In central air handling units cooling and dehumidifying of the air usually takes place using chilled water cooling coils with one of the two kinds of circuits: temperature controlled or mass flow controlled chilled water supply circuits. The invention combines both types, the temperature controlled and mass flow controlled chilled water supply in one water circuit arrangement. Thus combining the advantages of the temperature controlled circuit with those of the mass flow controlled chilled water supply circuit, without the disadvantages immanent in the two circuit systems.

A simple but very effective valve arrangement, combined with a variable speed pump (see Figure) allows simultaneous control of the mass flow and the water supply temperature. The supply water temperature determines the slope of the change of condition and the mass flow controls the cooling power applied to the air. This allows cooling the air with or without dehumidification as well as dehumidifying the air with a minimum amount of cooling, resulting in substantial energy savings.


IP Rights
German Patent DE 102009007591 granted in 2010, PCT-Application filed February 5 2010.

Origin
HTW Berlin

Application Area:
Air Conditioning
Development Stage: Concept
Type of Collaboration: License, Industry Cooperation
Schlagworte: Air Conditioning, Dehumidification, Energy, Water Circuit Arangement,
Weitere Kategorien: Environment engineering, Machine & Plant Technology, Physics & Engineering
Bild des Benutzers Dr. Andreas Voigt
Licensing Manager: Dr. Andreas Voigt
T +49 30 2125 4829
F +49 30 2125 4822
andreas.voigt@ipal.de
Market Potential: Worldwide
Benefits:
  • combines advantages of the temperature controlled chilled water supply, with the advantages of the mass flow controlled chilled water supply, but leaves the disadvantages out
  • allows for cooling without dehumidification
  • allows for dehumidification wit a minimum amount of cooling
  • simple but very effective arrangement
  • easy to install
  • energy saving, thus lowering the cost of air conditioning