Search academic texts

Information × Registration Number 0222U003609, 0119U001631 , R & D reports Title Improving the efficiency and ecological compatibility of water purification by plasma-erosion coagulation for thermal units of thermal and nuclear power plants popup.stage_title Head Shydlovska Nataliia A, Registration Date 07-05-2022 Organization Institute of Electrodynamics of the National Academy of Sciences of Ukraine popup.description2  The aim of the work is to increase the efficiency and environmental friendliness of water treatment for thermal units of TPPs, CHPs and NPPs by resolving the contradiction between increasing productivity and reducing the efficiency of high-performance plasma erosion coagulation treatment and optimizing pulse discharge currents of kiloampere amplitude and submicrosecond duration to optimize the technological modes of surface water treatment for the needs of thermal power plants. The object of research is discharge-pulse systems of plasma erosion treatment of submerged layers of granules of coagulant-forming metals. The subject of research is transient electromagnetic processes in the output circuit of the generator of discharge pulses of the installation of plasma erosion coagulation purification of raw water. The main scientific and practical results, their novelty and significance: - as a result of the analysis of characteristics of bit currents and requirements to sensors of pulse currents of kiloampere amplitude and submicrosecond duration the efficiency of use for measurement of their instantaneous values of high-frequency current transformers with Hall sensors and active compensation of magnetic field in core is substantiated; - a method of increasing the reliability of measurements of instantaneous values of pulsed discharge currents was developed, which allowed to increase 1.5 - 2 times the reliability of measurements of instantaneous values of pulsed currents of microsecond and submicrosecond duration; - a stand for calibration of pulse current sensors was created, which in addition to the discharge pulse generator with controlled parameters included a current-voltage measuring transducer with a parasitic inductance of less than 50 nH and used as a reference load of the generator, dissipating power up to 600 W. The converter has been implemented in EURO-RECONSTRUCTION LLC (Darnytska CHP) for calibration of pulse current sensors; Product Description popup.authors Gyzhko Iurii I. Zakharchenko Sergey М. Mazurenko Iryna L. Shydlovska Nataliya A popup.nrat_date 2022-05-07 Close