Discusses saving energy by reducing the ventilation system air pressure drop associated with laboratory ventilation systems. States that a significantly greater volume of conditioned makeup air is needed for fume removal than is required for conditioning the space. A once-through system usually is used due to the high exhaust quantity and the desire to isolate laboratories from adjacent spaces. The high costs of high airflow systems are magnified by the constant operation found in laboratories. Issues discussed are: ventilation energy use, low face velocity design benefits, heat recovery device selection, VAV control device options, zone temperature control, ductwork pressure drop and exhaust stack opportunities.
Primary Author(s): Weale J, Sartor D, Lock L E, Rumsey P H.
Source: ASHRAE J., August 2002, vol 44, no 8, 38-43, 3 figs, 2 tabs, refs.
BSRIA Abstract Doc 000104151 Abs 20022532
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