Ventilation system in a bakery production area

Bakery halls  normally have ovens installed in it  .Special attention needs to be given for ventilation in
the baking hall . Roof are  designed in such a way that it  helps in natural ventilation.  The
temperatures in these halls touches 50- 55 deg c in summer in some places  which makes condition
difficult for bakers and operators to work  in these condition .

Normally bigger plants with more than two or three units placed in  the same hall s  have more
problem than a single unit . Ensure that the roof height are something between 30 - 35 ft  from the
ground level  and have ample space for heat to disperse .Following methods are used to  for  

Forced  Ventilation  Axial  fans are installed at the roof  with capacities  matching the  hall dimensions
.fans are installed in the walls  as well roof  supported on the trusses and wall . structure needs to be
erected for installation , repair and dismantling of these fans .This methods consume more energy as
axial fans are drive by motors .

Natural ventilation  Roof are designed such a way that  it helps  natural ventilation  . series of wire
mesh is fixed in the entire length which allows hot air to escape through it  and preventing dust other
foreign bodies to go inside the  hall . fans can be installed which can use the hot airs  to run itself
hence creating draft for air to escape to the atmosphere  through roof .

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