energy efficiency

The article presents the results of a comprehensiv study of electric drives based on switched reluctance motors (SRM), which, due to the absence of permanent magnets and windings on the rotor, demonstrate high mechanical strength, thermal resistance, and economic efficiency. Despite these advantages, the implementation of SRMs in industry is hindered by problems of torque ripple and control complexity.

This article presents a theoretical justification of the design parameters of a solar desalination plant intended for the extraction of fresh water from brine. A series of conducted investigations revealed the mechanisms of solar energy distribution and the principal heat losses within the components of the solar desalination plant. This made it possible to theoretically determine the interaction between key natural and anthropogenic factors influencing the increase in the environmental efficiency of the water desalination process.

The article develops and tests a physical and mathematical model for optimizing the operation of a multistage condensation and recovery system (CRS) with the aim of improving energy efficiency and environmental safety. The key task of the modeling was to comprehensively describe the thermophysical processes, taking into account phase transitions, in particular the use of latent heat of evaporation.

The article considers modern methods of designing residential buildings in conditions of autonomous energy supply in a dense urban environment. The influence of urban planning restrictions, building density and climatic factors on the choice of architectural and planning and engineering solutions is analyzed. Particular attention is paid to the integration of renewable energy sources, in particular solar panels, heat pumps and energy storage systems.

This study presents an integrated approach to energy certification and quality control of ventilation systems in modern construction, emphasizing the role of energy efficiency in building performance. The research investigates current methods for evaluating ventilation effectiveness, compliance with energy standards, and the impact of system design on indoor environmental quality. Comprehensive analysis of regulatory frameworks and practical assessment techniques highlights the interconnection between certification processes and construction quality management.

The study focuses on the construction and application of nomograms for describing the formation of swirling air jets, widely used in ventilation systems. These jets have a complex three-dimensional structure with axial, radial, and tangential velocity components, which enhance mixing, reduce gradients, and improve air distribution efficiency. To adequately represent these processes, the paper proposes a methodology for building nomograms based on analytical expressions of axial velocity and excess temperature in non-isothermal jets.

The article presents the development of an integrated system for monitoring and managing residential environment parameters, based on the ESP32 microcontroller and the ESP-NOW wireless communication protocol. The proposed system features an adaptive architecture with a clearly defined modular structure, ensuring flexibility, scalability, and ease of operation.

Preserving historical heritage is one of the most difficult challenges of our time. The issue of integrating the latest technologies to achieve energy balance lies at the intersection of architecture, building physics, and cultural heritage. Every year, the problem of finding a balance between authenticity and thermal modernization becomes more acute, shaping a field of scientific research in which there is an increasing search for interdisciplinary approaches.