Analysis of energy consumption proportion of air infiltration to heat conduct in north area;

Calculation and analysis of heating energy consumption for air infiltration based on heating infiltration degree-hours

This paper states the present calculation methods of ventilation and infiltration airflow in large spacebuiding Points out that the sticking point of calculating airflow is the confirmation of wind pressure coefficient andheat pressure coefficient and the neutral plane position.

The equations of air leakage flow and seepage diffusion-consumption of oxygen density in the flowing field of coal pillar are derived.

In order to research into disturbance of constant temperature laboratory such as equipment heat radiation fluctuation,blast airflow fluctuation and infiltration air effect on the temperature stability of the room,the CFD simulation method is applied to analyse the temperature dynamic response characteristics with disturbance function.

However,disturbances from inside and outside of the constant temperature room,such as infiltration air,the equipment radiation fluctuation will affect the temperature stability.

Based on the calculation methods of integrated correction factors of cold air infiltration offered by "Code for HVAC design specifications", "Heating supply engineering"and "Practical heating and air conditioning design manual , edited a calculating program.