Simulating Exhaust Flows On A Building Rooftops | 44152
Occupational Medicine & Health Affairs
Our Group organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.
This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)
All submissions of the EM system will be redirected to Online Manuscript Submission System. Authors are requested to submit articles directly to Online Manuscript Submission System of respective journal.
Indoor air quality is an important factor to consider when designing HVAC systems. The health and safety of those who occupy the
space within any structure could be significantly affected by the air handling system inadvertently recirculating dirty exhaust air,
or capturing exhaust from neighboring structures. And thus, the design and placement of intake and exhaust structures on building
rooftops must be thoroughly evaluated. When evaluating the intake and exhaust structures on building rooftops, it is important to
collect and consider as much information as possible. This may include building dimensions, structures on the rooftop, the dimensions
of neighboring buildings in addition to their ventilation specifications, and environmental factors such as temperature and wind
direction. This paper reviews the concept of using simulation software to model the likelihood of exhaust gases recirculating through
intake structures on building rooftops. Each of the simulations consisted of a rectangular building with an intake structure and exhaust
stack in various positions on the roof. ASHRAE stack design guidance, provided in chapter 45 of the 2011 ASHRAE Handbook, was
used to develop these cases. Exhaust gas of various velocities is simulated to identify whether modeling techniques can serve as an
adequate replacement or alternative to traditional ASHARE based hand calculations. A properly designed exhaust structure would
result in minimal exhaust gas recirculation. In other words, a case in which the exhaust gas travels over the recirculation zone that is
adjacent to the intake structure and is carried beyond the building.
Daniel Woodard is pursuing his Master's degree at the University of Alabama at Birmingham (UAB) in the School of Mechanical Engineering. He received his undergraduate degree from UAB, which included coursework focused on HVAC applications and computer simulations. He has been a member of ASHRAE since 2010.