Abstract: In a thermodynamic cycle with at least one first heat exchanger for creating a first heated or partially evaporated working medium flow by heating or partially evaporating a liquid working medium flow by heat transmission from an expanded working medium flow; a second heat exchanger for creating a second at least partially evaporated working medium flow; a separator for separating a liquid from a vaporous phase of the second flow; and an expansion device for creating an expanded vaporous phase, pressure pulsations are prevented during the start-up of the cycle in that the vaporous phase separated by the separator is conducted past the expansion device and the first heat exchanger. The liquid phase separated by the separator is cooled in the first heat exchanger by heat transfer to the liquid flow. After the first heat exchanger, the cooled, separated, liquid phase and the separated vaporous phase are brought together.

Abstract: In a method and a device for utilizing heat transported by a discontinuous flow of exhaust gases (1), the discontinuous flow of exhaust gases (1) is emitted in phases (P1, P2, P3, P4, P5) with, in each case, constant output values for volume flowing (Va) and temperature (Ta) from an industrial installation, particularly an industrial furnace, wherein the discontinuous flow of exhaust gases (1) is converted into a continuous working flow (2) with adjustable, constant target values for the volume flowing (Vz) and the temperature (Tz). The continuous working flow (2), with the heat contained therein, is used for the conversion of thermal energy into useful energy.

Abstract: In accordance with the invention, to reduce the complexity of a cycle process, a liquid working medium flow (13) is brought up to an increased pressure and through part condensation of an expanded working medium flow (12) a first partly vaporized working medium flow (15) is created. Through further vaporization of the first partly vaporized working medium flow (15) with heat which is transferred from an external heat source (20), a second at least partly vaporized working medium flow (18) is created. In this second at least partly vaporized working medium flow (18) the vapor phase (10) is separated from the liquid phase (10), subsequently the energy of the vapor phase (10) is converted into a usable form and an expanded vapor phase (11) created. The expanded vapor phase (11) is mixed with the liquid phase (19) and the expanded working medium flow (12) is formed.

Abstract: The invention relates to a thermodynamic circuit with a working medium comprising at least two substances with non-isothermal evaporation and condensation whereby the working medium can decompose above a given temperature. According to the invention, the heat from heat sources at temperatures above the decomposition temperature of the working medium may be made useful with little complexity and with high operational security, whereby the heat from the heat source is transferred in a first step to a hot liquid circuit and, in a second step, from the hot liquid circuit to the circuit with the working medium comprising at least two substances with non-isothermal evaporation and condensation. The heat introduced to the circuit with the working medium comprising at least two substances with non-isothermal evaporation and condensation can be reduced by means of the intermediate hot liquid circuit, such that a decomposition of the working medium can be avoided.

Abstract: In a method for generating electrical energy by means of at least one low-temperature heat source (2), a VPT cyclic process (1, 10, 100) is carried out. Certain working substances are used to increase the efficiency of the VPT cyclic process.

Abstract: The invention relates to a pump device for feeding a delivery medium out of a deep borehole which leads from a floor level into the interior of the earth, which deep borehole is provided at least in sections with borehole piping, having a pump and having a motor which drives the pump. As a result of the motor being arranged outside the borehole piping and as a result of it being possible for the motor to be connected to the pump by means of torque transmitting means which extend laterally through the borehole piping, the motor can be protected from overheating, and in the event of a fault, can be pulled out of the deep borehole independently of the pump.

Abstract: The invention relates to a liquid working substance flow, the pressure of said flow being increased and the flow itself being subdivided into a first partial flow and a second partial flow. The first partial flow is partially evaporated with heat from a heat source, and the second partial flow with heat from a working substance flow with a low surface tension. The two partial flows are then combined and produce a gaseous working substance flow with heat from the heat source. The surface tension of said gaseous flow is reduced and the energy thereof converted into a usable form. The working substance flow with a low surface tension is condensed, thus producing the liquid working substance flows. According to the invention, the first partial flow and the liquid working substance flow are essentially at the same temperature. In this way, the heat of the heat source can be better used, thus increasing the efficiency of the cycle.

Abstract: When converting thermal into mechanical energy by a working medium containing a mixture of at least two materials having different boiling and condensation points, which is fed to a condenser, and is condensed therein, the condenser condensation pressure may increase and the efficiency for generating the mechanical energy thus decreases because the mixture of materials is separated into a liquid phase and a vapor phase upstream of the condenser. To prevent this, the liquid phase of the working medium is mixed with the vapor phase of the working medium before or while the working medium is condensed, thus once again creating a homogeneous mixture of materials which condenses at a lower pressure than the separated working medium, thereby preventing loss of efficiency. This can be applied to the use of thermal energy from low-temperature sources such as geothermal fluids, industrial waste heat, or waste heat from internal combustion engines.

Abstract: In a thermodynamic cycle with at least one first heat exchanger for creating a first heated or partially evaporated working medium flow by heating or partially evaporating a liquid working medium flow by heat transmission from an expanded working medium flow; a second heat exchanger for creating a second at least partially evaporated working medium flow; a separator for separating a liquid from a vaporous phase of the second flow; and an expansion device for creating an expanded vaporous phase, pressure pulsations are prevented during the start-up of the cycle in that the vaporous phase separated by the separator is conducted past the expansion device and the first heat exchanger. The liquid phase separated by the separator is cooled in the first heat exchanger by heat transfer to the liquid flow. After the first heat exchanger, the cooled, separated, liquid phase and the separated vaporous phase are brought together.

Abstract: In a method and device (1) for converting thermal energy of a low temperature heat source (20) into mechanical energy in a closed circuit, a liquid working agent is heated by transmitting heat from the low temperature source (20) and partially evaporating it in an expansion device (3). Erosion to the condenser (8) for condensing the partially evaporated working agent can be prevented by separating the liquid phase from the evaporator phase in the partially evaporated working agent that is directly in front of the condenser (8), and only the evaporator phase is transferred to the condenser (8) for condensing and subsequently, the condensed evaporator phase and the liquid phase are merged.

Abstract: In a method and a device for utilizing heat transported by a discontinuous flow of exhaust gases (1), the discontinuous flow of exhaust gases (1) is emitted in phases (P1, P2, P3, P4, P5) with, in each case, constant output values for volume flowing (Va) and temperature (Ta) from an industrial installation, particularly an industrial furnace, wherein the discontinuous flow of exhaust gases (1) is converted into a continuous working flow (2) with adjustable, constant target values for the volume flowing (Vz) and the temperature (Tz). The continuous working flow (2), with the heat contained therein, is used for the conversion of thermal energy into useful energy.

Abstract: The invention relates to a thermodynamic circuit with a working medium comprising at least two substances with non-isothermal evaporation and condensation whereby the working medium can decompose above a given temperature. According to the invention, the heat from heat sources at temperatures above the decomposition temperature of the working medium may be made useful with little complexity and with high operational security, whereby the heat from the heat source is transferred in a first step to a hot liquid circuit and, in a second step, from the hot liquid circuit to the circuit with the working medium comprising at least two substances with non-isothermal evaporation and condensation. The heat introduced to the circuit with the working medium comprising at least two substances with non-isothermal evaporation and condensation can be reduced by means of the intermediate hot liquid circuit, such that a decomposition of the working medium can be avoided.

Abstract: The aim of the invention is to increase the efficiency of a gas turbine system. Said aim is achieved by transferring at least one portion of the heat of the waste gases of a gas turbine to a working medium of a thermodynamic circulation process, which comprises at least two substances featuring non-isothermal evaporation and condensation. Said circulation process allows the residual heat of the waste gases to be used for additionally generating electrical or mechanical power, especially at waste gas temperatures ranging from 100 to 200° C. Even previously existing systems can be retrofitted in a simple manner with such a circulation process.

Abstract: The invention relates to a liquid working substance flow, the pressure of said flow being increased and the flow itself being subdivided into a first partial flow and a second partial flow. The first partial flow is partially evaporated with heat from a heat source, and the second partial flow with heat from a working substance flow with a low surface tension. The two partial flows are then combined and produce a gaseous working substance flow with heat from the heat source. The surface tension of said gaseous flow is reduced and the energy thereof converted into a usable form. The working substance flow with a low surface tension is condensed, thus producing the liquid working substance flows. According to the invention, the first partial flow and the liquid working substance flow are essentially at the same temperature. In this way, the heat of the heat source can be better used, thus increasing the efficiency of the cycle.

Abstract: The invention relates to a device for separating dust from flue gases from combustion plants, especially solid fuel combustion plants, comprising at least one dust filter via which the flue gases are guided, and by means of which the dust from the flue gases can be filtered out as it passes through the dust filter. In order to produce a device which separates dust in a highly efficient manner and which can be operated in a highly reliable manner and be used to heat combustion air for the combustion plant, the at least one dust filter is embodied as a bulk material filter in whose bulk material heat from the flue gases can be collected when the bulk material is cross-flown by the flue gases and by means of whose bulk material heat collected from the flue gases when the combustion air of the combustion plant flows through the bulk material filter can be given off to said combustion air.