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Title: Effect of building fan operation on indoor-outdoor dust relationships

Journal Article · · J. Air Pollut. Control Assoc.; (United States)

As part of an energy conservation program recently implemented by the Bell System, fans in many telephone equipment buildings now operate only when necessary to bring the temperature within allowable limits, rather than continuously.In the study presented, the effects of fan operation on indoor-outdoor dust relationships were monitored at 2 representative telephone offices. The indoor dust concentrations typically increased when the fans were off. The results indicate that this increase was due to loss of constant filtration, but not due to loss of building pressurization. An expression is derived for the relative dust increase when the building fans are switched off. Among other factors, the relative increase is directly proportional to the efficiency of the building filters and to the rate at which air is recirculated through them.

Research Organization:
Bell Laboratories, Holmdel, NJ
OSTI ID:
5435220
Journal Information:
J. Air Pollut. Control Assoc.; (United States), Vol. 33:6
Country of Publication:
United States
Language:
English