Orcan Energy Ag

Other

Bitzer Kühlmaschinenbau Gmbh

Orean Energy Ag

Bitzer Küühlmaschinenbau Gmbh

Orcan Energy Gmbh

Schunk Gmbh &Co. Kg Spann-Und Greiftechnik

Buchner, Karl-Heinz

Fritzsch, Bertram

Andreas Schuster

Richard Aumann

Andreas Sichert

Jens-Patrick Springer

Roy Langer

Andreas Grill

Daniela Walter

Bertram Fritzsch

Markus Lintl

Gabor Ast

Marcus Blumhardt

Bruno Fellhauer

Ralf Winkler

Karl-Heinz Büchner

Michael Franz

Nicolas Restrepo

Tobias Schleusener

Friedrich Kurz

Fabian Weigand

Fabian Kricke

Martin Santa-Maria

Asim Celik

Daniela Gewald

Karl-Heinz Buchner

Karin Berghauser

Karin Berghaeuser

Karl-Heinz Buechner

Roni Lörch

Tobias Schuster

Karin Berghäuser

Martin Santa Maria

Martin WÜRTH

A device is provided comprising an expansion machine for generating mechanical energy by expanding vapor of a working medium; a generator connected to a shaft of the expansion machine and used for generating electric energy from mechanical energy of the expansion machine; wherein the expansion machine and the generator form a structural unit with an exhaust vapor chamber between the expansion machine and the generator, and wherein, when the expansion machine is in operation, working medium expanded into the exhaust vapor chamber contacts the generator; and means for feeding, in particular injecting, a liquid working medium into the exhaust vapor chamber. Also provided is an ORC device comprising the device and a method for operating the device.

Device and method for operating volumetric expansion machines

A device for utilizing the waste heat of a thermo-process device comprising a first heat exchanger for transferring heat from a heat flow of a thermo-process device to a heat transfer medium; a second heat exchanger for transferring heat from the heat flow to a heat transfer medium, the second heat exchanger being arranged downstream of the first heat exchanger with respect to the heat flow; a thermodynamic cycle device having a third heat exchanger for transferring heat from the heat transfer medium to a working medium of the thermodynamic cycle device and having a fourth heat exchanger for transferring heat from the heat transfer medium to the working medium, the fourth heat exchanger being arranged upstream of the second heat exchanger with respect to the flow of the working medium; wherein heat transfer medium cooled in the third heat exchanger can be supplied at least partially to the first heat exchanger for heating and wherein heat transfer medium cooled in the fourth heat exchanger can be supplied at least partially to the second heat exchanger for heating.

Drive having an integrated ORC

The invention refers to a system for cooling a process fluid of a heat-producing apparatus, comprising: an outlet of the heat-producing apparatus, the outlet being provided for discharging process fluid to be cooled from the heat-producing apparatus; an inlet of the heat-producing apparatus, the inlet being provided for supplying cooled process fluid to the heat-producing apparatus; and a thermodynamic cycle device, in particular an ORC device, the thermodynamic cycle device comprising an evaporator having an inlet for supplying the process fluid to be cooled from the outlet of the heat-producing apparatus and having an outlet for discharging the cooled process fluid to the inlet of the heat-producing apparatus, the evaporator being adapted to evaporate a working medium of the thermodynamic cycle device by means of heat from the process fluid; an expansion machine for expanding the evaporated working medium and for producing mechanical and/or electrical energy; a condenser for liquefying the expanded working medium, in particular an air-cooled condenser; and a pump for pumping the liquefied working medium to the evaporator.

ORC device for cooling a process fluid

The invention refers to a system for energy recovery within an arrangement of industrial components. The system comprises a heat source for the arrangement; a thermodynamic circuit processing device, particularly an ORC device, having a heat exchanger for transferring heat from the heat source to a working medium of the thermodynamic circuit processing device and having an expansion device for expanding the working medium and for generating mechanical or electrical power; and at least one component of the arrangement to be driven, particularly at least one hydraulic or pneumatic machine, which can be driven with the power generated. The invention further refers to a corresponding method for energy recovery within an arrangement of industrial components.

System and method for energy recovery in industrial faciliiies

The invention refers to a method for controlling a thermodynamic cycle process apparatus, in particular an ORC apparatus, wherein the thermodynamic cycle process apparatus comprises an evaporator, an expansion machine, a condenser and a feed pump, and the expansion machine is coupled to an external apparatus in normal operation, and wherein the method comprises the following steps: measuring an exhaust steam pressure downstream of the expansion machine; and setting a volume flow of the feed pump in accordance with a computer-implemented control model of the thermodynamic cycle process apparatus according to the measured exhaust steam pressure and a target rotational speed of the expansion machine as input variables of the control model and with the volume flow of the feed pump as an output variable of the control model. The invention further refers to a corresponding thermodynamic cycle process apparatus.

Model-based monitoring of the operating state of an expansion machine

The invention relates to a device comprising: an expansion machine for generating mechanical energy by expanding vapor of a working medium; a generator connected to a shaft of the expansion machine and used for generating electric energy from mechanical energy of the expansion machine; wherein the expansion machine and the generator form a structural unit with an exhaust vapor chamber between the expansion machine and the generator, and wherein, when the expansion machine is in operation, working medium expanded into the exhaust vapor chamber contacts the generator; and means for feeding, in particular injecting, a liquid working medium into the exhaust vapor chamber. The invention also relates to an ORC device comprising the device according to the present invention and to a method for operating the device according to the present invention.

The invention relates to a thermodynamic cycle device, in particular an ORC device, comprising a preheater for preheating a working medium; an evaporator for evaporating and superheating a first mass flow of the preheated working medium; an expansion machine for expanding the evaporated and superheated first mass flow of the working medium; a condenser for condensing the working medium exiting the expansion machine; a feed pump for pumping condensed working medium to the preheater; and a first supply apparatus for supplying a second mass flow of the preheated working medium to the partially expanded first mass flow of the working medium in the expansion machine. The invention further relates to a corresponding method.

Control of ORC processes by injecting unevaporated fluid

The invention relates to a device for condensation of vapour expanded in an expansion machine of a thermal power plant to a condensed liquid, in particular containing oil, comprising: a module for condensation, wherein for condensation the module comprises an inlet and one or more pipelines, for example having substantially horizontally disposed pipes; a liquid separator for separating the condensed liquid; and a liquid collector for collecting the separated, condensed liquid.

Device and method for condensation of steam from ORC systems

The system according to the invention comprises a heat source and a cooling device for discharging heat from the heat source, the cooling device comprising: a heat exchanger/radiator for transferring heat to a surrounding medium, in particular wherein the radiator is an air cooler and the surrounding medium is air; and a thermodynamic cycle device, in particular an ORC device, comprising a working medium, an evaporator for evaporating the working medium by transferring heat from the heat source to the working medium, an expansion device for generating mechanical energy, and a condenser for condensing the working medium expanded in the expansion device; wherein the cooling device further comprises a condenser coolant circuit for discharging heat out of the condenser of the thermodynamic cycle device via the heat exchanger/radiator. The method according to the invention is suitable for discharging heat from a heat source with a cooling device.

Functional synergies of thermodynamic cycles and heat sources

The invention relates to a method for controlling ORC stacks with a total number nof individually operable ORC modules, said method comprising the following steps: determining the running time remaining until the next servicing time for each operable ORC module respectively; determining a target number nof ORC modules to be operated; comparing said target number nto an actual number nof currently operated ORC modules; when n&#x3e;n, connecting a number n&#x2212;nof ORC modules that corresponds to the difference between the target number and the actual number, where the ORC modules with the longest remaining running times of the ORC modules currently not being operated are connected; and/or when n&#x3c;n, disconnecting a number n&#x2212;nof ORC modules that corresponds to the difference between the actual number and the target number, where the ORC modules with the shortest remaining running times of the ORC modules currently being operated are disconnected; and/or when n=n, connecting the ORC module with the longest remaining running time &#x394;tof the ORC modules not currently being operated, and disconnecting the ORC module with the shortest remaining running time &#x394;tof the ORC modules currently being operated, if &#x394;t&#x3e;&#x394;t.

ORC stack-system control

The present invention relates to a method for controlling a pump, in particular a centrifugal pump, during pumping of a liquid, comprising the following steps: fixing a setpoint value of a flow rate of the pump; measuring an inlet pressure of the liquid upstream of the pump and an outlet pressure of the liquid downstream of the pump; determining a setpoint value of a rotational speed of the pump from a performance map of the pump, wherein the fixed setpoint value of the flow rate and a difference between the outlet pressure and the inlet pressure are incorporated into the performance map as input values; and setting the rotational speed of the pump to the setpoint value of the rotational speed. Furthermore, the invention relates to a corresponding device for controlling a pump.

Performance map control of centrifugal pumps

The invention relates to a method for detecting a leak in a thermodynamic cycle device with a condenser for condensing vaporous working medium, comprising the following steps: determining sub-cooling of the working medium in the condenser, wherein sub-cooling is determined as a difference between a condensation temperature in the condenser and a temperature of a liquid working medium exiting the condenser; detecting a leak in the event that the sub-cooling determined differs from a setpoint value for the sub-cooling or in the event that a filling quantity of the working medium in the thermodynamic cycle device, being determined from the determined sub-cooling, differs from a setpoint value for the filling quantity. The invention further relates to a corresponding computer program product and to a corresponding device.

Device and method for recognizing leaks in closed circular processes

The invention relates to a thermodynamic cycle apparatus, comprising: a working medium; an evaporator for evaporating the working medium; an expansion machine; a condenser, and a pump, wherein the geometrical arrangement of the evaporator is selected such that the condensed working medium can flow from the condenser to the evaporator by force of gravity and the working medium can circulate in a closed circuit via the evaporator and the condenser wherein a predetermined head height of the liquid working medium can be provided at the pump. The invention additionally relates to a method of starting the thermodynamic cycle apparatus the method comprising the following steps: applying heat to the evaporator and evaporating the working medium in the evaporator, wherein the working medium is caused to flow to the condenser; condensing the working medium in the condenser; starting the pump when a predetermined head height of the working medium at the pump is reached or exceeded.

Device and method for reliably starting ORC systems

The present invention relates to a method for lubricant heating during starting up of a thermodynamic cycle device, wherein the cycle device comprises a working medium with a working substance and a lubricant, an evaporator for evaporating the working substance, a lubricant separator for separating at least part of the lubricant from the working medium which is supplied by the evaporator, an expansion machine which is to be lubricated with the lubricant, and a condenser device with a condenser, and wherein the method comprises the following steps: delivery of lubricant from the lubricant separator to the condenser device and/or to the evaporator during shutdown of the cycle device, as a result of which a working medium which is enriched with lubricant is provided in the condenser device and/or in the evaporator; and heating of the working medium which is enriched with lubricant in the evaporator during starting up of the cycle device. Furthermore, the invention relates to a thermodynamic cycle device which comprises means for delivering lubricant from the lubricant separator to the condenser device and/or to the evaporator during shutdown of the cycle device, as a result of which a working medium which is enriched with lubricant can be provided in the condenser device and/or in the evaporator.

Method and device for rapid oil heating for oil-lubricated expansion machines

The present invention provides a method for operating a combined heat and power (CHP) plant comprising a heating boiler, a vaporizer, an expansion machine, and a condenser, achieved according to claimThe method comprises steps a), when a first condition is met: supplying a working medium to the vaporizer to obtain an at least partially evaporated working medium, feeding the (total) evaporated working medium to the expansion machine, and operating the expansion machine such that the working medium is expanded, supplying the working medium expanded by the expansion machine to the condenser, and transferring heat of the expanded working medium supplied to the condenser to a medium of a heating circuit designed to heat an object; and b) when a second condition is met which is different from the first condition: i) supplying at least a portion of the working medium to the condenser of the CHP plant without the portion of the working medium having been supplied to the expansion machine, and transferring heat of the working medium supplied to the condenser to a medium of a heating circuit designed to heat an object, and/or supplying a medium supplied from the heating boiler to the vaporizer to a heat transfer device in which heat is transferred from this medium to a medium of a heating circuit designed to heat an object.

Growing community of inventors

Tussenhausen, Germany

Andreas Schuster