Abstract
Industrial ventilation is an engineering discipline which has been badly neglected for a long period of time. With the recent emphasis on improving conditions in the in-plant workplace environment, more advanced techniques are required and are being developed to solve difficult and complex industrial ventilation problems. The paper reviews the technical progress being made in the industrial ventilation field by different investigators throughout the world. The scope of the field reviewed and updated includes natural ventilation, local exhaust ventilation, specialized ventilation techniques (dilution, air jets and air curtains, recirculation of filtered air, exhaust of open surface tanks, tracers for ventilation studies), and mine ventilation. Typical applications of the new technology to solving industrial ventilation problems are presented. Important areas requiring further research and development work are identified.