Abstract: The invention relates to a method for operating a linearly concentrating solar power plant (1), in which a heat transfer medium flows through a pipeline loop (47) having at least one receiver, the heat transfer medium having a flow velocity which is such that the flow in the pipeline loop (47) is turbulent, at least part of the heat transfer medium, upon exit from the pipeline loop (47), being extracted and recirculated into the pipeline loop (47). Furthermore, the invention relates to a linearly concentrating solar power plant with at least one pipeline loop (47) having at least one receiver in which a heat transfer medium flowing through the pipeline loop (47) is heated by irradiating solar energy, a mixing device (27) being comprised, in which at least part of the heat transfer medium flowing through the pipeline loop (47) is mixed with heat transfer medium to be delivered.

Abstract: A heat transfer or storage medium containing a nitrate salt composition including at least one alkali metal nitrate and optionally alkaline earth metal nitrate; and, at least one alkali metal nitrite and optionally alkaline earth metal nitrite in an amount of 1.1 to 15.0 mol %. The molar amount of the alkali metal nitrite and optionally alkaline earth metal nitrite for a desired temperature is calculated by x nitrite = K 6 ? ( T ) K 6 ? ( T ) + P O ? ? 2 Xnitrite is the mole fraction of nitrite, K6(T) is the temperature-dependent equilibrium constant of the reaction nitrate ?nitrite+½ oxygen (NO3?? NO2?+½ O2), pO2 is the oxygen partial pressure and T is the temperature of the nitrate salt composition.

Abstract: The present invention relates to a method for reducing or preventing the decomposition of a composition Z comprising Z1 a salt of dithionous acid in an amount ranging from 50 to 100 wt % and optionally Z2 an additive selected from the group consisting of alkali metal carbonate, alkaline earth metal carbonate, alkali metal or alkaline earth metal tripolyphosphate (Na5P3O10), alkali metal or alkaline earth metal sulfite, disulfite or sulfate, dextrose and complexing agents in a combined amount ranging from 0.

Abstract: A process for purifying alkanesulfonic anhydride that includes feeding a stream containing alkanesulfonic anhydride, sulfuric acid, high boilers and residual low boilers into a melt crystallization to form crystals of the alkanesulfonic anhydride suspended in mother liquor, and solid-liquid separation to remove the crystals from the mother liquor.

Abstract: At least two series-connected storage cells have hot liquid supplied to or removed from a first cell and cold liquid supplied to, or removed from, a final cell. The liquid temperature decreases from the first cell to the final cell. Individual cells are connected from the warmer cell lower region to the colder cell upper region. At least one cell is closed by a cover forming a gas space between the liquid and the cover. A gas line branches off from the gas space entering into the liquid of a colder cell or into the liquid in the connection of two adjacent cells. At least one of the adjacent cells has a lower temperature than that of the cell from the gas space of which the gas line branches off.

Abstract: A process for purifying alkanesulfonic anhydride which includes: (a) feeding a stream containing alkanesulfonic anhydride, sulfuric acid, high boilers and residual low boilers into a melt crystallization to form crystals of the alkanesulfonic anhydride suspended in mother liquor, (b) performing a solid-liquid separation to remove the crystals from the mother liquor, and (c) optionally washing the crystals to remove mother liquor adhering to the crystals.

Abstract: The invention relates to a solar power plant with a first heat transfer medium circuit and with a second heat transfer medium circuit, in which the first heat transfer medium circuit comprises a store (3) for hot heat transfer medium and a store (5) for cold heat transfer medium and also a pipeline system (6) connecting the stores (3, 5) for hot heat transfer medium and for cold heat transfer medium and leading through a solar array (7), and the second heat transfer medium circuit comprises a pipeline system (9) connecting the stores (3, 5) for hot heat transfer medium and for cold heat transfer medium and in which at least one heat exchanger (11) for the evaporation and superheating of water is accommodated, the at least one heat exchanger (11) having a region through which the heat transfer medium flows and a region through which water flows, said regions being separated by a heat-conducting wall, so that heat can be transmitted from the heat transfer medium to the water.

Abstract: Use of a nitrate salt composition Z comprising Z1 at least one alkali metal nitrate and optionally alkaline earth metal nitrate and also Z2 at least one alkali metal nitrite and optionally alkaline earth metal nitrite in an amount of Z2 in the range from 1.1 to 15.0 mol % based on the sum of Z1 plus Z2 as heat transfer or heat storage medium in apparatuses in which these heat transfer or heat storage media are comprised at a temperature in the range from 500 to 620° C. and an oxygen partial pressure over the nitrate salt composition in the range from 0.1 to 1.

Abstract: The invention relates to a device for heat transfer, comprising a low temperature heat exchanger (3) and a high temperature heat exchanger (5), the heat exchangers (3, 5) being connected to one another by means of a connecting line such that a heat transfer medium flows through the high temperature heat exchanger (5) and through the low temperature heat exchanger (3) in succession, at least one dwell time tank (19) being arranged in the connecting line.

Abstract: The present invention relates to a method for reducing or preventing the decomposition of a composition Z comprising Z1 a salt of dithionous acid in an amount ranging from 50 to 100 wt % and optionally Z2 an additive selected from the group consisting of alkali metal carbonate, alkaline earth metal carbonate, alkali metal or alkaline earth metal tripolyphosphate (Na5P3O10), alkali metal or alkaline earth metal sulfite, disulfite or sulfate, dextrose and complexing agents in a combined amount ranging from 0.

Abstract: The invention relates to a container for storing a liquid, which tends to decompose into gaseous decomposition components in the case of the conditions prevailing in the container (1) and in the case of which a chemical reaction equilibrium results between gaseous decomposition components and liquid, wherein a floating roof (29) is accommodated in the container (1) and the floating roof (29) comprises floats (33), using which the floating roof (29) floats on the liquid, and wherein the floating roof (29) is guided using a sliding seal (45) in the container (1). The invention furthermore relates to a device for storing heat, comprising a first container (57) for storing a colder liquid and a second container (59) for storing a hotter liquid and a use of the container and the device for storing heat.

Abstract: The invention relates to a pipeline system for a linearly concentrating solar power plant (1) with at least one receiver line (13), in which a heat transfer medium is heated by radiating solar energy, or with a central receiver and at least one emptying tank (21) and/or one store for the heat transfer medium, the heat transfer medium having a vapor pressure of less than 0.5 bar at the maximum operating temperature. Furthermore, a gas displacement system (31) is comprised, which connects gas spaces in the at least one emptying tank (21) and/or in the store for the heat transfer medium to one another and which has a central gas store (35) and/or a central gas connection (37) and a central exhaust gas outlet (39), through which gas can be discharged into the surroundings.

Abstract: The present invention is in the field of processes for the generation of thin inorganic films on substrates. In particular the present invention relates to a process comprising bringing a com-pound of general formula (I) into the gaseous or aerosol state Ln-M-XmL=formula and depositing the compound of general formula (I) from the gaseous or aerosol state onto a solid substrate, wherein R1, R2, R3, R4, are independent of each other hydrogen, an alkyl group, an aryl group, or a SiA3 group with A being an alkyl or aryl group, and at least two of R1, R2, R3, R4 are a SiA3 group, n is an integer from 1 to 4, M is a metal or semimetal, X is a ligand which coordinates M, and m is an integer from 0 to 4.

Abstract: The invention relates to a solar power plant with a first heat transfer medium circuit and with a second heat transfer medium circuit, in which the first heat transfer medium circuit comprises a store (3) for hot heat transfer medium and a store (5) for cold heat transfer medium and also a pipeline system (6) connecting the stores (3, 5) for hot heat transfer medium and for cold heat transfer medium and leading through a solar array (7), and the second heat transfer medium circuit comprises a pipeline system (9) connecting the stores (3, 5) for hot heat transfer medium and for cold heat transfer medium and in which at least one heat exchanger (11) for the evaporation and superheating of water is accommodated, the at least one heat exchanger (11) having a region through which the heat transfer medium flows and a region through which water flows, said regions being separated by a heat-conducting wall, so that heat can be transmitted from the heat transfer medium to the water.

Abstract: The invention relates to a device for heat transfer, comprising a low temperature heat exchanger (3) and a high temperature heat exchanger (5), the heat exchangers (3, 5) being connected to one another by means of a connecting line such that a heat transfer medium flows through the high temperature heat exchanger (5) and through the low temperature heat exchanger (3) in succession, at least one dwell time tank (19) being arranged in the connecting line.

Abstract: The invention relates to an apparatus for storing a liquid, comprising at least two series-connected storage cells (3), with hot liquid being able to be supplied to, or removed from, a first storage cell (3) via a first central line (35) and with cold liquid being able to be supplied to, or removed from, a final storage cell of the series-connected storage cells (3) via a second central line (33), and with the temperature of the liquid in the series-connected storage cells (3) decreasing in each case from the first storage cell (3) to the final storage cell (3), and the individual storage cells (3) being connected to one another in each case via a connection (5; 7) from the lower region (11) of the warmer storage cell (3) to the upper region (15) of the colder storage cell (3), and with at least one storage cell (3) being closed by a cover (27) and therefore a gas space (25) being formed between the liquid in the storage cell (3) and the cover (27), wherein a gas line (29) branches off from at least one gas s

Abstract: The invention relates to a method for operating a linearly concentrating solar power plant (1), in which a heat transfer medium flows through a pipeline loop (47) having at least one receiver, the heat transfer medium having a flow velocity which is such that the flow in the pipeline loop (47) is turbulent, at least part of the heat transfer medium, upon exit from the pipeline loop (47), being extracted and recirculated into the pipeline loop (47). Furthermore, the invention relates to a linearly concentrating solar power plant with at least one pipeline loop (47) having at least one receiver in which a heat transfer medium flowing through the pipeline loop (47) is heated by irradiating solar energy, a mixing device (27) being comprised, in which at least part of the heat transfer medium flowing through the pipeline loop (47) is mixed with heat transfer medium to be delivered.

Abstract: The invention relates to a pipeline system for a linearly concentrating solar power plant (1) with at least one receiver line (13), in which a heat transfer medium is heated by radiating solar energy, or with a central receiver and at least one emptying tank (21) and/or one store for the heat transfer medium, the heat transfer medium having a vapor pressure of less than 0.5 bar at the maximum operating temperature. Furthermore, a gas displacement system (31) is comprised, which connects gas spaces in the at least one emptying tank (21) and/or in the store for the heat transfer medium to one another and which has a central gas store (35) and/or a central gas connection (37) and a central exhaust gas outlet (39), through which gas can be discharged into the surroundings.

Abstract: The present invention relates to a process for the generation of thin inorganic films on substrates, in particular an atomic layer deposition process. This process comprises bringing a compound of general formula (I) into the gaseous or aerosol state and depositing the compound of general formula (I) from the gaseous or aerosol state onto a solid substrate, wherein R1, R2, R3, R4, R5, and R6 are independent of each other hydrogen, an alkyl group, or a trialkylsilyl group, n is an integer from 1 to 3, M is a metal or semimetal, 1 X is a ligand which coordinates M, and m is an integer from 0 to 4.