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|Posté le: Dim 4 Mar - 04:18 (2018) Sujet du message: eli-harold-jersey
|Consider the following usual methods of ventilation cooling:
* Exhaust fans or Power Roof Ventilators (PRVs).
To do a satisfactory job of eliminating excessively hot air http://www.cheapnfl49ersjerseys.com/arik-armstead-jersey/ , it is usually essential to have powered wall andor roof exhausters. These fans should also help to control air pressure within the building whether it be negative or positive pressure.
* Supply Fans or PRVs.
A large number of buildings use exhaust PRVs to exhaust fumes, smoke, dust or other contaminants unavoidable in the operation of the business. As a result, these buildings are frequently under a severe negative pressure. The solution to the problem of this kind is usually found in the use of supply fans or "make-up" air ventilators.
* Air Circulators.
If the exhaust and supply air requirements of a building have been carefully engineered and installed, and there continues to be a high instance of worker discomfort http://www.cheapnfl49ersjerseys.com/deforest-buckner-jersey/ , the problem usually relates to the matter of air circulation. In this way, in addition to amximum benefit from the fresh, cooler air, occupants receive the added comfort of air circulation over their bodies and they are not adversely affected by the superheated air being exhausted from the building.
American Blowers Co. offer quite a few techniques of efficient building ventilation and cooling. In industrial plants where there is a high density of employees and many manual operations involved, an improvement in the environment can produce substantial benefits in terms of increased production http://www.cheapnfl49ersjerseys.com/joe-williams-jersey/ , reduced errors, and a decline in complaints and absenteeism among employees. In other circumstances, the attentiveness of an audience or student group may be a factor that spells success or failure for the project.
To obtain a reasonable degree of personnel comfort in hot weather, there are three basic factors that should be provided for in the ventilation and coolong system of a commercial or industrial building.
REMOVAL OF EXCESSIVELY HOT AIR
The first step toward controlling the hot air porblem is to provide for the removal of excessively hot air from the building. This superheated air frequently mixes with the air in the cooler areas of the building to produce an overall temperature increase. As superheated air is frequently localized around heat-producing machinery, it should be exhausted from the building near its source.
SUPPLY COOLER AIR
As a rule http://www.cheapnfl49ersjerseys.com/c-j-beathard-jersey/ , outside air temperatures are considerably cooler than those inside a building. As superheated air is exhausted, provision should be made to replace it with fresh, cooler, outside air. When high temperature air is replaced by outside air, a substantial improvement in the average ait temperature of the building results. Even where outside air temperature may be in the 80s or 90s http://www.cheapnfl49ersjerseys.com/ahkello-witherspoon-jersey/ , invariably it is 15 degress to 20 degrees cooler than the air it replaces. This is a very important improvement to the individuals affected.
A very effective way to overcome the discomfort of a hot, stuffy room is to create a breeze. The circulation of air over a person's body immediately causes a cooling effect on the skin. When air is passed over a moist surface, it will evaporate some of the moisture and thus lower the temperature of the surface. This is precisely what occurs when air circulates across the human body. By creating a gentle breeze throughout a room or area, a great deal of cooling comfort is provided for individuals who must work there. This pattern of air circulation is sometimes called "breeze conditioning".
For additional information please refer to http:www.americanblower.netaxial
Industrial Ventilating Engineer
American Blowers Company
http:www.americanblower.netPressureBlowers Birth??, Well not literally http://www.cheapnfl49ersjerseys.com/solomon-thomas-jersey/ , sort of metaphorically is how I mean it. I’m trying to make it sound as if becoming a contractor is some grand undertaking when in reality it is sadly quite simple, and perhaps, as I will suggest, all too easy.
In Europe, I have been told that one must become an apprentice http://www.cheapnfl49ersjerseys.com/jimmy-garoppolo-jersey/ , past certain tests of hands on skills in each craft before they can be considered a qualified tradesman. I would think, the qualifications to become a general contractor would be even more difficult as working on and renovating their centuries old structures which were built by artisans would require a very wide range of skills and knowledge. The qualifications in the states that are needed to become a general contractor, at least in Long Island NY, amount to obtaining a minimum level of general liability insurance and paying a fee to the county. There is no written test or physical test of building ability or any proof of intimate knowledge of the different systems (structural, plumbing http://www.cheapnfl49ersjerseys.com/carlos-hyde-jersey/ , electric, HVAC, etc.). In Suffolk county there is a written test that delves into some rules and regulations as it pertains to an awareness of contract law and other legalities, at least that was the test that I took many, many years ago.
There have been and still are many organizations that a contractor can join in attempt to gain some credibility and some proof of construction knowledge. NARI (National Association of the Remodeling Industry) is one example. NARI offers courses that a member can take that will at least prove that an individual can pass a written test and answer technical questions pertaining to all the different systems previously mentioned and achieve a status as a CR (certified remodeler). It is the opinion of the author that this type of certification (or something equivalent) should be a “mandatory” for one to obtain in order to a registered general contractor. Sadly http://www.cheapnfl49ersjerseys.com/rashard-robinson-jersey/ , the counties. Jerseys Wholesale Jerseys China Jerseys Cheap Jerseys Wholesale Jerseys Free Shipping Custom NFL Jerseys Wholesale Replica Soccer Jerseys Cheap Adidas NHL Jerseys China New MLB Jerseys China Sports Jerseys Free Shipping