Abstract
For the implementation of a closed nuclear fuel cycle it is necessary to carry out a series of experimental studies to justify the choice of technology. In addition, the operation of the radiochemical plant is impossible without high-quality automatic control systems. In the technologies of spent nuclear fuel reprocessing, the method of continuous evaporation is often used for a solution conditioning. Therefore, the effective continuous technological process will depend on the operation of the evaporation equipment. Its essential difference from similar devices is a small size. In this paper the method of mathematic simulation is applied for the investigation of one-effect evaporator with an external heating chamber. Detailed modelling is quite difficult because the phase equilibrium dynamics of the evaporation process is not described. Moreover, there is a relationship with the other process units. The results proved that the study subject is a MIMO plant, nonlinear over separate control channels and not selfbalancing. Adequacy was tested using the experimental data obtained at the laboratory evaporation unit.
Highlights
Implementation of a closed nuclear fuel cycle requires substantiation of spent nuclear fuel (SNF) technology through studies at the experimental and pilot equipment
At the same time creation of an effective radiochemical production with regard to its high radioactive, nuclear and environmental hazards is impossible without the use of automatic control systems (ACS) [1]
The effective continuous operation of the technological process will depend on the operation of the evaporation equipment
Summary
Series: Materials Science and Engineering 142 (2016) 012043 doi:10.1088/1757-899X/142/1/012043. A Computer Model of the Evaporator for the Development of an Automatic Control System. K A Kozin, E V Efremov, O P Kabrysheva and M I Grachev Institute of Physics and Technology, Tomsk Polytechnic University, 30 Lenin Avenue, Tomsk, 634050, Russian Federation
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