## Nomenclature  
\(\mathrm{C_{P}}\)Specific heat capacity of air (\(\mathrm{J/(kg\cdot^{C}C)}\))  
\(\mathrm{Pr_{t}}\)Turbulent Prandtl number  
\(\mathrm{Tu}\)Turbulence intensity at the inlet (%)  
\(\mathrm{Re_{L}}\)Reynolds number at the inlet  
\(\mathrm{k_{0}}\)Turbulent kinetic energy (\(\mathrm{m^{2}/s^{2}}\))  
\(\mathrm{V}\)Local air velocity (\(\mathrm{m/s}\))  
\(\mathrm{T}\)Local air temperature (\(\mathrm{{}^{C}C}\))  
\(\mathrm{T_{r}}\)Reference temperature (\(\mathrm{{}^{C}C}\))  
\(\mathrm{T_{o}}\)Outdoor air temperature (\(\mathrm{{}^{C}C}\))  
\(\mathrm{T_{i}}\)Indoor air temperature (\(\mathrm{{}^{C}C}\))  
\(\mathrm{p}\)Power of heating device (\(\mathrm{kW}\))  
\(\mathrm{1}\)Length scale (\(\mathrm{m}\))  
\(\mathrm{y+}\)Non-dimensional distance  
\(\mathrm{T_{in,i}}\)Inner surface temperature of the internal wall (\(\mathrm{{}^{C}C}\))  
\(\mathrm{T_{in,o}}\)Outer surface temperature of the internal wall (\(\mathrm{W/(m^{2}\cdot^{O}C)}\))  
\(\mathrm{h_{i}}\)Heat transfer coefficient of inner surface of the internal wall (\(\mathrm{W/(m^{2}\cdot^{O}C)}\))  
\(\mathrm{h_{o}}\)Heat transfer coefficient of outer surface of the internal wall (\(\mathrm{W/(m^{2}\cdot^{O}C)}\))  
\(\mathrm{V_{0}}\)Volume of the investigated room (\(\mathrm{m^{3}}\))  
\(\mathrm{n}\)Air change rate of infiltration (\(\mathrm{h^{-1}}\))  
\(\mathrm{F}\)Floor area of the room (\(\mathrm{m^{2}}\))  
\(\mathrm{Q_{i}}\)Heating load index of room (\(\mathrm{W/m^{2}}\))  
\(\mathrm{Q}\)Daily heating load (\(\mathrm{MJ/m^{2}}\))  
\(\mathrm{q_{i}}\)Inner surface heat flow of internal wall (\(\mathrm{W}\))  
\(\mathrm{q_{o}}\)Outer surface heat flow of internal wall (\(\mathrm{W}\))  
\(\mathrm{Greek}\)symbols  
\(p\)Air density (\(\mathrm{kg/m^{3}}\))  
\(\lambda\)Thermal conductivity (\(\mathrm{W/(m\cdot^{O}C)}\))  
\(\mathrm{\tau_{o}}\)Heating duration per operation (\(\mathrm{h}\))  
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