TITLE

Evaluation of Tobacco Dust and Designing of Local Exhaust Ventilation (LEV) Systems in a Tobacco Processing Industry

AUTHOR(S)
MOHAMMADYAN, MAHMOUD; BAHARFAR, YASER
PUB. DATE
January 2012
SOURCE
International Journal of Occupational Hygiene;Jan2012, Vol. 4 Issue 1, p47
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This study was carried out to evaluate tobacco dust concentration and also designing a suitable ventilation system for reduction of tobacco dust concentration in a tobacco processing factory in the north of Iran. Gravimetric method was used to determine the tobacco dust concentrations in the emission sources an also indoor workplace. A local exhaust ventilation system was designed according to the velocity pressure method recommended by ACGIH. Mean tobacco dust concentrations (ranged from 23.56 to 432.59 μgm-3) were higher than TLV-TWA in the proximity of all indoor emission sources where some individuals were working. However, mean indoor and outdoor tobacco dust concentrations (7.71and 0.04 μgm-3 respectively) were lower than TLV-TWA. Totally 5 separated ventilation systems and 5 centrifugal fans were designed and selected to pull the air through 46 different hoods. Some downward slot hoods similar to VS-708 type were designed for the work-tables in tipping unit and some upward slot hoods that are similar to VS-903 type recommended by ACGIH's industrial ventilation committee were also selected for tipping manipulation unit. Some enclosing hoods were designed for feeders. Duct velocity of 1060 mmin-1 has been selected for all systems. Total air flow rates ranged from 240-369 m³min-1. A very high efficient bag house containing several bag filters was used to collect dust. In conclusion, because of a high concentration of tobacco dust in the proximity of sources and risk of workers exposure to tobacco dust, a suitable local exhaust ventilation system was designed to reduce particulate air pollution concentrations in a tobacco processing factory.
ACCESSION #
89369740

 

Related Articles

  • Exhaust aftertreatment facility makes DPFs.  // Refrigerated Transporter;Jan2007, Vol. 42 Issue 8, p38 

    The article focuses on the announcement of Cummins Emission Solutions (CES) that its exhaust aftertreatment manufacturing facility has started the production of diesel particulate filters (DPFs) in North America. The DPFs will help engine manufacturers fulfill the 2007 U.S. Environmental...

  • If you can't stand the heat…. Bristow, Kevin // Heating & Ventilating Review;Jul2011, Vol. 50 Issue 9, p28 

    This article discusses the application of filtration systems to prevent nuisance odors, grease, fat and other contaminants exhausted from commercial kitchens into the environment. It warns about the disadvantages of using carbon filters, including an adverse effect on back pressure and fan...

  • Elimination of particulate contamination in film and TV tape handling rooms. Haig, Ron // BKSTS Journal;Apr1982, Vol. 64 Issue 4, p150 

    The article presents the elimination of particulate contamination in film and television tape handling rooms. The Penafla filter is the latest filter working on the principle of the Hansen effect with high efficiency on holding large dust capacities at relatively low pressure doses. Methods...

  • Specify the Correct Dust Filter Cartridge for Optimum Performance and Value. Schouvieller, Lori // Industrial Maintenance & Plant Operation;Jan2001, Vol. 62 Issue 1, p24 

    Provides tips for maximizing the performance of industrial cartridge dust-collection equipment in the United States. Process of industrial dust filtration; Technique for selecting a replacement filter cartridge; Designs and components of filter cartridge.

  • EH & S CLINIC.  // Products Finishing;Jul2011, Vol. 75 Issue 10, p38 

    The article provides an answer on the type of carbon filter for recycling scrubber exhaust.

  • Put a Damper on Exhaust Problems. Robinson, Kenneth E. // Heating/Piping/Air Conditioning Engineering;Nov2005, Vol. 77 Issue 11, p21 

    Presents an article on improving the exhaust ventilation system of a pattern shop. Problems encountered by the shop in its ventilation system; Factors that led to the lack of dust control in the system; Advantages of installing the electric dampers upside down.

  • Air Filter.  // Air Conditioning, Heating & Refrigeration News;6/12/2006, Vol. 228 Issue 7, p9 

    The article introduces the Riga-V air filter, manufactured by Camfil Farr. The air filter provides high-efficiency rigid filtration performance. The company says, the V-pleat configuration produces optimize performance and offers superior dust loading and airflow characteristics. It is available...

  • Dust extraction for efficient workplaces.  // DEMM: Engineering & Manufacturing;Jun2009, p5 

    The article offers information on the range of dust extractors and modular filters from Egmont Air.

  • Literature & Catalogs.  // Engineered Systems;Jul2007, Vol. 24 Issue 7, p68 

    The article provides information on several reading materials related to heating and ventilation. They include the air filtration products brochure form Airguard, the dust collection bulletin from Farr Air Pollution Control, and the wall chart from Lloyd Industries Inc. The features of these...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics