The features of the use of technical butane in gas supply systems are considered, cri-teria are established to ensure the presence of excess pressure in the tank. A mathematical model of temperature distribution on the reservoir contour has been developed, the tempera-tures of technical butane vapor have been calculated, in the presence of heat exchange elements of gas supply systems with the surrounding soil. The thickness of thermal insulation is justified to ensure an overpressure in the tank. The composition of the gas-air mixture, taking into ac-count the restrictions on the fluctuations in the Wobbe number, ensures the complete combus-tion of the mixture in gas-powered consumer installations.
Modified methods are proposed for determining the surface area of heat and mass transfer in the contact apparatus in the humidification, cooling, dehumidification of air with water, as well as dehumidification of air with solid drying agent, based on the number of transfer units. The number of transfer units is determined by the method of graphical integration using I-d-diagram of humid air to evaluate both heat and mass transfer process.
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