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Danov

Georgi Danov, Wein AT

Krasimir D. Danov, Sofia BG

Patent application numberDescriptionPublished
20090133480Methods and device for fast creation of fluid interfaces and use of this device for determination of liquid-liquid and liquid-gas interfacial properties - The invention proposes new methods for fast fresh surface formation of a drop or bubble of a test fluid and a device to realize the new methods to determine the dynamic or equilibrium surface/interfacial tension (ST/IFT) of this liquid. The methods are implemented by means of a single device which is used both for dynamic and equilibrium measurements of the ST/IFT. Depending on the method, the determination of the ST/IFT can be performed either by Axisymmetric Drop Shape Analysis (ADSA) or Capillary Pressure Method (CPM) or both. In addition, with this device the Drop Volume Method and Stopped Jet Method can be realized, which has been modified and improved with the proposed invention in comparison with the known methods. The combination of several methods for creating a fresh surface and of two techniques for determining ST/IFT in a single device allows choosing the most suitable method for a given fluid system considering the system properties and desired time range. The proposed device consists of the following components: 05-28-2009

Vladimir Danov, Erlangen DE

Patent application numberDescriptionPublished
20090255254Method and device for increasing the energy efficiency of a power plant - The invention relates to improving the efficiency or the energy balance of a power plant. Here, the heat content waste heat from the power plant is employed in such a way that the waste heat is fed into a first and/or a second thermoacoustic machine. In the first thermoacoustic machine a work output is generated with the aid of the waste heat and as a result of the thermoacoustic effect, which is employed elsewhere in the power plant, for example to operate a compressor. The second thermoacoustic machine is likewise used for cooling a working fluid by utilizing the waste heat and the thermoacoustic effect.10-15-2009
20090255273Method and device for condensing CO2 - The invention relates to a method and to a device for condensing CO2 or CO2 separation. According to the invention the thermoacoustic effect is used, with the aid of waste heat from a power station, to produce power for a compressor for compressing a working medium, in particular for compressing a CO2-containing flue gas, and/or for cooling the working medium.10-15-2009
20110110796WATER JET TYPE PUMP AND METHOD FOR OPERATION THEREOF - A water jet type pump is part of a system for generating an ultrahigh vacuum. The pump includes a pump chamber through which an ionic fluid flows at high velocity. The chamber has a first fluid feed for the fluid, the first feed ending in a nozzle with a nozzle opening, and a fluid discharge. A second feed of the pump chamber is connected to a high pressure chamber to be evacuated. Gas is suctioned out of the high vacuum chamber through the second feed by way of the flowing fluid jet, which is used to discharge the gas out of the pump chamber.05-12-2011
20110162956METHOD FOR SEPARATING RICH ORE PARTICLES FROM AGGLOMERATES WHICH CONTAIN NON-MAGNETIC ORE PARTICLES AND MAGNETIZABLE PARTICLES ATTACHED THERETO, ESPECIALLY FE-CONTAINING OXIDE COMPONENTS SUCH AS FE3O4 - In a method for separating rich ore particles from agglomerates which contain said rich ore particles and magnetizable particles attached thereto, especially Fe3O4, in which agglomerates of the rich ore particle and the magnetizable particle are bonded by organic molecular chains, the agglomerates are contained in a suspension containing a carrier fluid and are broken up by an input of mechanical energy so that an agent contained in the suspension and decomposing the exposed, hydrophobic molecular chains can act upon the molecular chains. The Fe-containing oxide components are separated from the suspension in a magnetic separation process.07-07-2011
20110163039DEVICE AND METHOD FOR SEPARATING FERROMAGNETIC PARTICLES FROM A SUSPENSION - A device for separating ferromagnetic particles from a suspension has a tubular reactor having at least one magnet, a suspension being able to flow through the reactor. The reactor (07-07-2011
20110164997PUMP - A circulating pump with an impeller disposed in a pump housing, by which a fluid can be delivered from a pump inlet of the pump housing to a pump outlet of the pump housing. The circulating pump includes an electric motor, the rotor of which is mechanically coupled to the impeller via a shaft such that that the impeller can be placed into an appropriate rotating movement by rotation of the rotor, and cools the rotor of the electric motor by a thermosiphon in the shaft, wherein the impeller serves as a heat sink for a working medium of the thermosiphon.07-07-2011
20110165802VESSEL PROPULSION SYSTEM FOR WATERCRAFT - A ship propulsion system for watercraft contains at least one propeller, by which a drive force can be created for the watercraft. The ship propulsion further contains an electric motor, the rotor of which is directly mechanically coupled to the at least one propeller via a shaft such that the at least one propeller may be brought into a respective rotating movement by a rotation of the rotor. In order to cool the rotor of the electric motor a thermosiphon is disposed in the shaft, and the propeller serves as a heat sink for a working medium of the thermosiphon.07-07-2011