The influence of the air cooling fan cluster effect

environmental air speed and direction on operation performance of the air cooling fan cluster was numerically investigated.The results show that

variation of the negative pressure at entrance of the air cooling fan cluster was the direct reason for operation performance deviation of the air cooling fan located at different places under different environmental conditions.In the environment with nearly no air flow

the air cooling fan cluster was affected seriously by the group effect

and exhibited characteristics of low surrounding air flow and large intermediate air flow.As the environmental air speed increased

the air flow from air cooling fans located at different places decreased continuously

and the effect of the environmental air enhanced from the leeward side to the windward side.In the dominant air direction

the operation performance of the air cooling fan was affect by the environmental air most slightly

while by the reverse wind from boiler side most seriously.