Provide a 2 pages analysis while answering the following question: Dilution and Local Exhaust Ventilation. Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract
Provide a 2 pages analysis while answering the following question: Dilution and Local Exhaust Ventilation. Prepare this assignment according to the guidelines found in the APA Style Guide. An abstract is required. Ventilation is a widely used method employed for controlling hazards that are airborne. It is the process of moving contaminated air from a given work area and substituting it with clean air. The hazards that are removed include flammable vapors, toxic chemicals, dust, metal fumes among others (Nims, 1999). This paper seeks to analyse the local exhaust ventilation and the dilution ventilation and elaborate differences in their working principles.
Both of these systems work to remove contaminants from a working area. The contaminants are directed into an exhaust system where there are discharged into the atmosphere. These contaminants may pass through an air cleaner before emission into the environment. Both of the systems require to make up the air so as to replace that which is exhausted, failure to which would lead to a decline in the room pressures. Both systems employ fans, which create a pressure difference allowing the flow of air along with its constituents, such as contaminants, into the exhaust system (Nims, 1999).
Only small amounts of air are exhausted by the local exhaust ventilation compared to the dilution ventilation. This means that dilution ventilation will require greater amounts of cooled or heated make up air than the local exhaust ventilation (Nims, 1999).
The basic local exhaust of ventilation is comprised of the hood, ducts, cleaner, fan and exhaust stacks (Nims, 1999). The hood is placed near the source of emission of the contaminants. The ducts carry the contaminant in the local exhaust system. They should have minimal resistance to efficiency. Smooth and round ducts are ideal, and the flow rates in them should not be excessive as this will creates abrasion and noise.
Air cleaners eliminate the contaminants before exhausting the air. State or federal regulations dictate the type of air cleaner to be employed. Fans are regarded to as the workhorses in the exhaust ventilation system. They provide pressure differences to suction the contaminants throughout the system and into the outdoor environment. The exhaust or exhaust stacks discharge the contaminated air into the outdoor environment. They should not be located near the fresh air intakes, and they must have adequate flow rates to prevent re-entry (Nims, 1999).
The dilution ventilation employs large exhaust fans which on the roof of the building or walls. The fans create pressure differences for suctioning the contaminated air from the room. A fan may be required for enabling makeup air into the room to replace the exhausted air. The patterns of air movement and the placement of the inlet relative to worker location are critical in ensuring that the contaminated air is removed from the worker breathing zone. A plenum may be encompassed in the clean air inlet area for the system to be more effective (Nims, 1999).
In conclusion, ventilation is of paramount importance when it comes to the working area. The dilution ventilation system works on the principle of drawing contaminated air generally from the room. The local exhaust system removes contaminated air from a local source by utilizing a hood. It is more sophisticated and expensive to install but is best suited for toxic and highly flammable contaminants. Fans are employed in both systems so as to create pressure differences and allow for the suction of contaminated air away from the working area. This contaminated air is then discharged through an exhaust system.
Elitewriterhelp.com is an online academic writing site that provides a variety of services to students and professionals in need of essay, dissertation, and research paper assistance. This website was founded by experienced writers and editors who understand the needs of today’s student community. With their help, students can get a well-written paper without having to worry about the quality or accuracy of their content.
Elitewriterhelp.com offers a wide range of services that are designed to meet the needs of any student or professional looking for some extra help with their academic work. From simple editing services to complete custom writing pieces, they have something for everyone! Their team consists of highly qualified writers and editors who have years of experience in both academia and industry sectors across all fields such as English literature, nursing sciences, medical science, engineering design & technology, accounting & finance etc., making them one of the best providers around when it comes to providing quality content writing services.
When it comes to their custom writing service, Elitewriterhelp.com provides everything from essays & dissertations to research papers & lab reports; all written according to your exact specifications & requirements so that you can be sure your professor will be impressed with what you submit! They also provide formatting help which includes APA/MLA/Chicago style formatting for those stuck on tedious details like citations or bibliography entries; perfect for those last-minute assignments!
For those looking for proofreading & editing services instead; Elitewriterhelp.com has you covered too! The team at this website offer professional copyediting which can check grammar errors and spellings mistakes while still preserving your original voice within the text; ensuring that whatever piece you submit looks great while still sounding exactly how you want it do sound! What’s more is if required they can also provide advice on how best to improve certain parts in order make sure your work meets the criteria set by your professors so no marks are lost due to minor mistakes made in hurry or ignorance.
Last but not least is Elitewriterhelp’s paraphrasing service which helps take care off any plagiarism risks associated with submission an assignment where quotes are used extensively taken from sources outside class materials (eBooks etc.). The team will ensure that anything being submitted sounds fresh while leaving out any potential legal issues plaguing people using other authors works without proper permission given first when appropriate credit isn’t given otherwise – definitely something worth investing into before submitting examples cited within studies found elsewhere apart from class material sources only mentioned once during seminars etc..
To sum up: Elitewriterhelp offers students access top-notch custom writing pieces as well as editing/proofreading packages for existing ones already written – perfect for double checking against silly grammatical errors / typos overlooked during initial composition stages meaning there’s always hope even when running short on time ahead up coming deadlines looming near after long lectures spent inside classrooms sat away from laptops used mainly taking notes by hand easily misplaceable later down line afterwards rendering past efforts worthless sadly…
