Liu, Z.; Xu, W.; Zhang, L.; Li, Z.; Li, J. Research on the Heating Effect of a Convection Radiator Based on a Human Thermophysiological Model. Buildings2024, 14, 199.
Liu, Z.; Xu, W.; Zhang, L.; Li, Z.; Li, J. Research on the Heating Effect of a Convection Radiator Based on a Human Thermophysiological Model. Buildings 2024, 14, 199.
Liu, Z.; Xu, W.; Zhang, L.; Li, Z.; Li, J. Research on the Heating Effect of a Convection Radiator Based on a Human Thermophysiological Model. Buildings2024, 14, 199.
Liu, Z.; Xu, W.; Zhang, L.; Li, Z.; Li, J. Research on the Heating Effect of a Convection Radiator Based on a Human Thermophysiological Model. Buildings 2024, 14, 199.
Abstract
This article couples human metabolic factors and heating environmental factors, and uses a 57 node human thermal physiological model to study the heating effect of radiators. It provides a way to objectively calculate and directly quantify the effect of heating equipment on human thermal physiological parameters. As the inlet speed increases, the surface temperature of the human body first increases and then decreases. At a speed of 3m/s, it basically reaches a high value. Continuing to increase the wind speed, as the indoor convection intensity further increases, the surface temperature of the human body will decrease, leading to a decrease in thermal comfort. Compared with floor radiation heating under similar indoor temperature conditions, forced convection radiator heating has similar skin temperatures in various parts of the human body after the indoor design temperature exceeds 20 ℃, and the overall thermal comfort of the two technical solutions is equivalent. Research has shown that the turbulence wind speed of convective radiators should not be too small, with a wind speed range of 2.5m/s to 3m/s. The heating effect of using horizontal air outlet from the lower part of the radiator is better than that of vertical air outlet from the upper part. Convection type radiator heating is more suitable for buildings with rooms that are not too high due to the large indoor temperature gradient.
Keywords
Thermophysiological model; Convection radiator; Local skin temperature; Low temperature heating; Heating effect
Subject
Engineering, Civil Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
