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CONTENTS
| WATERTREATMENT AND WATER PURIFICATION | 4 |
| Semenova I.V., Nefedova A.V., Shchegoleva Yu. I. Corrosion characteristics natural waters of the Moscow region | 4 |
| ENERGYSAVING TECHNOLOGIES | 10 |
| Vedruchenko V.R., Gaak V.K., Glukhova M.V. Improving the efficiency of the circulating water supply system of TPPs (on the example of Omsk TPP-5) | 10 |
| Malikova O. Yu. Substantiation of the application of ventilation systems with increased «aerodynamic» efficiency | 16 |
| Shishkin N.D., Ilyin R.A., Konkov I.I. Efficiency of heat supply systems with joint use of renewable energy sources and heat pump units | 23 |
| Klychev Sh.I., Bakhramov S.A., Kharchenko V.V., Panchenko V.A. Thermal characteristics of the cylindrical heat storage of solar collectors | 30 |
| Kirpichnikova I.M., Zavarukhin V.A. Degradation of photovoltaic modules. Types, causes, diagnostic methods of module | 37 |
| Panfilov V.I., Ermolaev E.D., Lipovka Yu.L. Renewable sources of refrigeration for air conditioning systems of microclimate of buildings | 43 |
| RESEARCH, DESIGN, CALCULATIONS | 50 |
| Yudaev I.V., Seregin A.A., Tokareva A.N., Gracheva N.N., Postovalov A.N. Analysis of the use of pipelines with modern thermal insulation materials for the underground non-channel method of laying a heating main using statistical processing methods | 50 |
| Meskhi B.Ch., Tsygulev N.I., Amerkhanov R.A., Khlebnikov V.K., Shelest V.A., Galstyan R.A. Design and control of digitalized autonomous power supply system | 57 |
| Samarin O.D. Analytical calculation of temperature perturbations in an unlimited array from a linear source | 63 |
| Sultanov M.M., Kuryanov V.N., Kul’kov V.G., Norov D.Sh. Development of a method for planning a repair program for electrical networks based on the level of electrical energy losses | 67 |
