%0 Journal Article
%A John Weale
%A Peter Rumsey
%A Dale A Sartor
%A Eng Lock Lee
%B ASHRAE Journal
%D 2002
%G eng
%N 8
%P 38-43
%T Laboratory Low-Pressure Drop Design
%V 44
%1 <p>Applications Team</p>
%2 LBNL-49364
%8 08/2002
%X <p>Laboratory buildings are characterized by the production of potentially hazardous fumes within the occupied space. The primary objective of a laboratory ventilation system is to isolate and protect the occupants from the fumes, as well as provide minimum outside air at a comfortable temperature. Fume removal results in the need for a large volume of conditioned make-up air, typically a significantly greater volume than required for space temperature conditioning purposes. The high quantity of exhaust naturally results in a once through system, which is also often required by codes that prohibit any recirculation in a laboratory space. The high costs associated with high airflow systems are magnified by the 24 hours a day, 356 days a year ventilation operation often seen in laboratory situations. All too often, the common design approach taken to laboratory mechanical systems results in a traditional office ventilation system upsized to meet a laboratory's requirements.</p>