Abstract: A method for charging a traction battery (2) of an electrically powered motor vehicle (4), in which a first target value (S1) for a first battery charge level (SOC1) is specified for a start of the motor vehicle (4) in which the traction battery, provided that its battery charge level (SOCV) is smaller than a second target value (S2), to avoid aging processes, is charged in a first charging process (L1) to a second battery charge level (SOC2) which corresponds to a second target value (S2), which second battery charge level (SOC2) is smaller than the first battery charge level (SOC1), and in which the traction battery (2) in a second charging process (L2) is charged to the first battery charge level (SOC1), wherein the start time (tS) of the second charging process (L2) is set as a function of a specific departure time (tA), the first target value (S1) and the second target value (S2), or wherein the second charging process (L2) is started on the basis of a start signal (S) which is output by the user as a re

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 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.