Abstract
One of the most important problems today is to solve heat-supply problems and simultaneously decide the problem of energy saving. Systems of low-temperature electric infrared heaters show high efficiency. Radiant heating systems have several advantages over traditional heating systems, like the possibility of heating both the entire room and separate zones, lack of massive pipelines and air ducts and the expenditure for heat-transfer agent transportation, and lack of dust and pollutant circulation in the heated room. Using radiant heating systems can also reduce air temperature in the heated room by 1–3°C due to features of heat-transfer processes when radiant heating is used and it is allowed by building standards. Thermal comfort in rooms with radiant heating devices is created by increase in the radiation temperature of the enclosing structures' internal surfaces with a simultaneous decrease in the internal air temperature. In this case, it is necessary to achieve compliance with the first thermal comfort conditions. In order to determine whether these requirements are met and whether they comply with the current building standards, it is necessary to develop a method for calculating heat transfer in rooms with radiant heating. It is necessary to develop a methodology that will take into account all the variety of heating device configurations. The most important parameters are the dimensions of the devices, the surface temperature, and their number and location in the serviced rooms. It is also necessary to take into account the geometric parameters of premises and the material and emittance of the inner surface of enclosing structures. Heating devices for residential and public buildings are considered in the article. Due to the low height of such premises, devices with surface temperatures up to 100°C are accepted for meeting the second thermal comfort condition. The developed method has a number of assumptions that gives an error not exceeding five percent.
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Shatskov, A.O. Determining Temperature of Adiabatic Surfaces in Rooms with Radiant Heating. Therm. Eng. 68, 717–722 (2021). https://doi.org/10.1134/S0040601521090081
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DOI: https://doi.org/10.1134/S0040601521090081