Steam engine cycle with feedback of the waste heat by means of a multistage heat pump process, in particular for steam power stations (superheated and cold steam)

摘要

According to the invention, a steam engine cycle is specified by means of which a complete conversion of heat into mechanical work is theoretically possible, so that the known "CARNOT thermal efficiency" for heat engines is surpassed. In accordance with the working principle, the heat of condensation is transferred in steps from the condenser of the engine cycle (= Clausius-Rankine process or condensation process) by means of a separate, multistage and energy-saving heat pump process to the already deposited condensate in the liquid high-pressure cycle (downstream of the feed pump). The heat of condensation q0, including the heat pump work WWP is thus fed back regeneratively into the boiler (in superheated-steam power stations) or evaporator (in cold-steam power stations). The heat Qzu that is still to be fed from outside to the boiler or evaporator up to the full capacity thereof is thus a differential heat; it corresponds to the differential work Wab resulting from the turbine work WT or turbine heat QT and the compression work WWP of the heat pump. This results in the theoretical thermal efficiency for the entire thermal power station always being 100% for any thermodynamic temperature gradient present at the turbine (expansion engine) and in any temperature range used of the available primary heat source: With the steam engine cycle specified, it is possible ... Original abstract incomplete. IMAGE