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 t...

The activity of evaluation and verification industrial ventilation installations has a strong preventive role in terms explosion risk mainly due to the fact that three determining elements can lead an phenomenon, determine presence two namely fuel (gases, vapours, dusts, mists) source initiation (hot surface, flame, sparks mechanical origin, electrical sparks, static electricity, etc.). develop...

providing welfare status for personnel of industrial plants is necessary and also emphasized in all standards. preparing fresh, cool and clean air especially in warm seasons is one of the most important duties of plant owners to keep workers safe and healthy. although in many workshops some cooling and air-conditioning systems (commonly mixing ventilation systems) were installed, most of them h...

background: methanol is a colorless and poisonous liquid that is commonly used as an industrial and household solvent. methanol poisoning is a rare but extremely hazardous form of in toxication that affects the central nervous system and causes visual disorder, drowsiness, seizures and coma.  case presentation: a 29-years-old man with methanol intoxication presented with drowsiness and acidosis...

Many studies have shown that floor-supply displacement ventilation systems are better than mixing ventilation systems. The benefits include indoor air quality, thermal comfort, and reduced energy use. The energy benefits depend on the climate conditions. This research compared the energy use of a floor-supply displacement ventilation system in a large industrial workshop with that of a mixing v...

 Background: Methanol is a colorless and poisonous liquid that is commonly used as an industrial and household solvent. Methanol poisoning is a rare but extremely hazardous form of in toxication that affects the central nervous system and causes visual disorder, drowsiness, seizures and coma.  Case Presentation: A 29-years-old man with methanol intoxication presented with drowsiness and ac...

Persistent clinical demand and recent industrial developments show that High Frequency Ventilation is well established, although the method was introduced prematurely into clinical use, with incomplete knowledge, primitive instrumental development and inadequate monitoring standards. The confusion [1-6] in the literature regarding the clinical use of high frequency ventilation and its merits in...