Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Kalina Power Limited

Jörg Lengert

Thomas Matschullat

Ralph Joh

Roland Klaus

Roland Lutz

Kathrin Ruhsland

Norbert Weinberg

Matthias Böttger

Hanno Garbe

Harald Dichtl

Thomas Hagen

Jann Blonn

Martina Lengert

Klaus Himmler

Michael Fenz

Ewa Bozek

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.

Method for operating a thermodynamic cycle, and thermodynamic cycle

In a method and a device for utilizing heat transported by a discontinuous flow of exhaust gases (), the discontinuous flow of exhaust gases () 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 () is converted into a continuous working flow () with adjustable, constant target values for the volume flowing (Vz) and the temperature (Tz). The continuous working flow (), with the heat contained therein, is used for the conversion of thermal energy into useful energy.

Method and device for utilizing heat transported by a discontinuous flow of exhaust gases

In accordance with the invention, to reduce the complexity of a cycle process, a liquid working medium flow () is brought up to an increased pressure and through part condensation of an expanded working medium flow () a first partly vaporized working medium flow () is created. Through further vaporization of the first partly vaporized working medium flow () with heat which is transferred from an external heat source (), a second at least partly vaporized working medium flow () is created. In this second at least partly vaporized working medium flow () the vapor phase () is separated from the liquid phase (), subsequently the energy of the vapor phase () is converted into a usable form and an expanded vapor phase () created. The expanded vapor phase () is mixed with the liquid phase () and the expanded working medium flow () is formed. Through complete condensation of the partly condensed, expanded working medium flow () the liquid working medium flow () is obtained in its turn.

Method and device for carrying out a thermodynamic cyclic process

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. Furthermore, the circuit with the working medium comprising at least two substances with non-isothermal evaporation and condensation is embodied as a standardized solution for use with differing heat sources each at differing temperatures, whereby matching to the temperature of the heat source is achieved by means of the intermediate hot liquid circuit.

Method and device for the transfer of heat from a heat source to a thermodynamic cycle with a working medium of at least two substances with non-isothermal evaporation and condensation

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.

Pump device

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.

Method and device for carrying out a thermodynamic cycle

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&#xb0; C. Even previously existing systems can be retrofitted in a simple manner with such a circulation process.

Method for increasing the efficiency of a gas turbine system and gas turbine system suitable therefor

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.

Growing community of inventors

Lonnerstadt-Ailsbach, Germany

Jörg Lengert