Thermodynamic power cycle with an intermediate heat tank

Operating according to the thermodynamic cycle of Renkin-Clausius have low efficiency and the attempts to generate the waste heat and to improve the degree of generation as well as carrying out the cycle at super-crucial pressure have not given satisfactory results. Using a third intermediate heat tank which serves as an acceptor of the non-generated heat leaving the cold tank is proposed. If the difference between the cold tank temperature and the temperature of the intermediate tank is small enough and in the same time there is big temperature difference between the cold and the hot tank, the follow aims are attained: big temperature range during the cycle; high degree of heat recovery and small cost of external work for the cold tank reproduction. The highest degree of regeneration is achieved at water-power cycles but they have the lowest efficiency. The degree of heat regeneration is low but the total degree of the heat entering the cycle from the hot tank is the highest. The efficiency is in range from 0.5 to 0.66. It is significantly higher compared to the corresponding parameters at the classic water-power cycles. Optimizing of thermodynamic and technological parameters and using a more suitable working body (which means at the lowest temperature of the cold tank but close to the environmental one) could lead to better results