The article analyses the issues of the calculation technique applicability for the predetermined level of thermal comfort in accordance with the requirements of ISO 7730. The air temperature as a function of humidity, speed, the radiation temperature difference was calculated for different values of metabolic and clothing thermal insulation rate. The results are given in tabular and graphical form as well as in the form of approximating polynomials. The calculations are performed for class B rooms. The range of expected thermal sensations is from «slightly cool» to «slightly warm» for the following ranges of parameters: the rate of metabolism 68-177 W/m2, clothing thermal resistance 0,108-0,202 m2·K/W, air velocity 0,1-0,7 m/s, relative humidity 20-80 %, radiation temperature difference -8…+8 °С. The dependences obtained for the parameters of the microclimate, providing a given level of thermal comfort, can be used to support energy efficient modes of operation of air conditioning systems.

Refrigeration pipelines through which generated artificial cold is transported from the production site to the consumption place by means of a heattransfer agent are the most used objects to heat insulation apply. The correct choice and proper makingup of heat insulation influence directly the power efficiency and the duration of safe exploitation of tubes under adverse temperatures and humid conditions. A qualitative assembly of the tube insulation decreases significantly the wear and tear of refrigeration pipelines and minimizes the tubes frostingup as well as contributes to reducing the frequency of changing separate outofoperation parts of pipelines and multipurpose valves. The paper analyses qualities and defects of series of heat insulating materials, the particularities of assemblage and exploitation of heat protective constructions based on them are examined as well. Modern heat-insulating materials and products based on RU -FLEKS foamed synthetic rubber (Russian production of a complete cycle using domestic technologies and raw materials) are cited in detail; they have been developed and produced within the framework of the main terms of the import substitution of State Program № 328 “Development of industry and rise of competitiveness” of April 15, 2014.