Thermal Conductivity and Thermodynamic Properties of Water/Ethyl Hydrazine Solutions

摘要

In this work, thermal conductivity and thermodynamic properties of water/ethyl hydrazine solutions are presented. In recent years, micro fabricated reactors have proven to provide excellent heat and mass transfer characteristics. For example, in order to have a uniform distribution of components within a short period of time, micro mixers offer advantages which cannot be achieved by bulk mixing devices. The solution of this problem is impossible without reliable theoretically grounded methods of calculations of the thermal conductivity of the prospective water/ethyl hydrazine solutions used in power and technological constructions. The lack of the data (in literature) on the thermal conductivity of ethyl hydrazine/water solutions in the pure state, as well as with the edition of water as function of temperature and pressure, make it difficult to use reactors rationally. The results of experimental research on the thermal conductivity of ethyl hydrazine/water solutions in the temperature range 293.6-535.5 K and pressure range of 0.101-49.1 MPa, with concentration 0.1-0.9 mass H_2O, are presented. A generalized aqueous solution was developed. The common relative error of measuring the thermal conductivity under a coefficient of confidence α of 0.95 is 3.2%.