Mine climatic conditions

Convective heat dissipation depends on the temperature and flow rate of the surrounding air;

Radiation heat dissipation mainly depends on the ambient temperature;

Evaporation heat dissipation depends on the relative humidity and flow rate of the surrounding air. qm-qw=qd+qz+qf+qch

QM-The heat generated by human body in metabolism depends on the amount of human activity;

QW-the heat consumed by human body in doing work, and the excess heat discharged by qm-qw human body;

Qd-the heat emitted by human body, which is negative below the surface temperature of human body; Otherwise it is positive;

Qz-the heat brought by sweat evaporation or exhaled water vapor;

Qf-radiation heat dissipation between human body and surrounding objects, which can be positive or negative;

QCH—— The human body is converted from heat, and it does not expel energy from the body; When the human body is in thermal equilibrium, QCH = 0；;

When the external environment affects the thermal balance of human body, the human body temperature increases QCH >: 0, and the human body temperature decreases QCH.

Temperature: It plays a major role in human convection heat dissipation.

Relative humidity: it affects the effect of evaporation and heat dissipation of human body.

Wind speed: it affects the effect of convection heat dissipation and evaporation heat dissipation. The intensity of convective heat transfer increases with the increase of wind speed. At the same time, the effect of water exchange also increases with the increase of wind speed. In windy weather, cool clothes dry quickly.