microclimate

The organization of air distribution is one of the key aspects of creating a comfortable and healthy indoor climate. The effectiveness of this process affects not only temperature and humidity, but also overall air quality, which directly impacts people's well-being. To ensure optimal air distribution, a variety of ventilation devices are used, including grilles and diffusers, which differ in design and technical characteristics. Recently, louvered linear diffusers have gained considerable popularity, combining high functionality with modern design.

The paper investigates the dynamics of air flows in the cabin of a low-entry city bus to improve passenger comfort and energy efficiency. The modeling was performed by CFD analysis in Ansys Fluent using the Mercedes-Benz Citaro Hybrid cabin model. Under winter conditions (flow inlet temperature - 27°C, bus body walls - 0°C), the maximum flow velocity reached 3.69 m/s in the doorway area, while insufficient ventilation was found in the front and rear parts of the cabin (velocity <0.8 m/s).

This paper is devoted to the research of the important issue of increasing the efficiency and optimization of microclimate management processes in residential premises. The purpose of this study is to create an automated system for accurate setting and control of the main parameters of the microclimate in the room, which will make it possible to increase comfort and energy efficiency. To achieve the task, the Arduino platform is used, which is an open hardware and software system with a wide range of opportunities for developing embedded systems.

Розроблено автоматизовану підсистему визначення розподілу параметрів комфортності приміщення. Описано методи та алгоритми, за допомогою яких було реалізоване програмне забезпечення підсистеми.

A subsystem of automated determination of distribution parameters of rooms comfort facilities. We describe the methods and algorithms by which it was implemented software subsystems.

Розроблено методику проведення вимірів комфортності приміщень, здійснено іден- тифікацію параметрів та визначені розподіли освітленості і температури в 3D просторі.

Designed methodology of measuring rooms comfort facilities. Carried out the identification of the parameters and determined the distribution of light and temperature in the 3D space.

The article is devoted to increasing the efficiency of the air conditioning systems of clean rooms, which maintain the microclimate parameters in a given range according to several indicators - the number and size per 1 m³ of dust particles, aerosols, microorganisms and pressure, humidity, and temperature.

Clean rooms are used in microelectronics, instrumentation, medicine and medical industry, pharmacology, laboratories, optics production, food industry, biotechnology, aviation, and space industry.

An alert system has been studied, in which sensor data can be collected and analyzed for further processing and action. Notifications are generated when data is compared against certain criteria. The ESP8266 microcontroller has been chosen as the basic device for implementing such a system, as this Espressif controller is a highly integrated Wi-Fi SoC solution that meets the demands of the cyberphysical systems industry in low power consumption, compactness and reliability. This solution is one of the most effective for the alert system.