To obtain a reasonable degree of personnel comfort in hot weather Chris Smalling Manchester United Jersey , there are three basic factors that should be provided for in the ventilation and coolong system of a commercial or industrial building.
Forced ventilation is used to control indoor air quality. Excess humidity, odors, and contaminants can often be controlled via dilution or replacement with outside air. However, in humid climates much energy is required to remove excess moisture from ventilation air.
Kitchens and bathrooms typically have mechanical exhaust to control odors and sometimes humidity. Factors in the design of such systems include the flow rate (which is a function of the fan speed and exhaust vent size) and noise level. If the ducting for the fans traverse unheated space (e.g., an attic) Cameron Borthwick-Jackson Manchester United Jersey , the ducting should be insulated as well to prevent condensation on the ducting. Direct drive fans are available for many applications, and can reduce maintenance needs.
Ceiling fans and tablefloor fans circulate air within a room for the purpose of reducing the perceived temperature because of evaporation of perspiration on the skin of the occupants. Because hot air rises, ceiling fans may be used to keep a room warmer in the winter by circulating the warm stratified air from the ceiling to the floor. Ceiling fans do not provide ventilation as defined as the introduction of outside air.
Another ype of venting - natural ventilation is the ventilation of a building with outside air without the use of a fan or other mechanical system. It can be achieved with operable windows or trickle vents when the spaces to ventilate are small and the architecture permits. In more complex systems warm air in the building can be allowed to rise and flow out upper openings to the outside (stack effect) thus forcing cool outside air to be drawn into the building naturally through openings in the lower areas. These systems use very little energy but care must be taken to ensure the occupants' comfort. In warm or humid months, in many climates, maintaining thermal comfort via solely natural ventilation may not be possible so conventional air conditioning systems are used as backups. Air-side economizers perform the same function as natural ventilation Axel Tuanzebe Manchester United Jersey , but use mechanical systems' fans, ducts, dampers, and control systems to introduce and distribute cool outdoor air when appropriate.
Ventilating is the process of changing or replacing air in any space to control temperature or remove moisture, odors Ashley Young Manchester United Jersey , smoke, heat, dust and airborne bacteria. Ventilation includes both the exchange of air to the outside as well as circulation of air within the building. It is one of the most important factors for maintaining acceptable indoor air quality in buildings. Methods for ventilating a building may be divided into mechanicalforced and natural types. Ventilation is used to remove unpleasant smells and excessive moisture, introduce outside air, and to keep interior building air circulating Antonio Valencia Manchester United Jersey , to prevent stagnation of the interior air.
Tenderall Fan 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, 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.
Additional information can be found at the Tenderall Fan company web site http:tenderallhvacindex.
Industrial Process Equipment Engineer
Tenderall Fan Co.
http:tenderallinquiryindex Paris has become synonymous with women's fashion. From the late 19th century Anthony Martial Manchester United Jersey , the world has looked to the City of Light for its fashion direction. To take home a piece of Paris fashion, consider the following:
Don't dismiss Parisian department stores as a source of fashion. They can be a great place to see a wide range of styles and designers - all under one roof. The larger stores even have a number of mini-boutiques representing the "big name" designers within the store.
* Galeries Lafayette - Built in 1906, this belle epoque multi-level shopping palace is as much fun to look at as it is to shop in. Each floor circles an atrium overlooking the bustling main cosmetics floor. The store specializes in women's clothing and accessories. The view from the tea shop on the top floor is worth the visit. The Galeries Lafayette offers free fashion shows on Wednesdays.
* Le Printemps - Located near the Palais Garnier, this huge store is noted for its household goods as well as its fashion. The store offers many services for American visitors, including shipping Angel Gomes Manchester United Jersey , translation, and a personal shopping service. Printemps offers several free fashion shows each week.
* Bon Marche - Located on the Left Bank, this stylish store was Paris' first department store. Designed by Gustave Eiffel (of Eiffel Tower fame), it is particularly known for its younger, slightly off-beat fashion.
Since the late 19th century Andreas Pereira Manchester United Jersey , Paris has been the undisputed Queen of fashion. Designers, such as Chanel, Dior, Givenchy, Balenciaga Ander Herrera Manchester United Jersey , and Schiaparelli have all contributed to making the Parisian Haute Couture industry the best in the world. More recently, Christian LaCroix and Karl Lagerfeld have helped to perpetuate that status. Many of the great fashion houses are located in side streets jutting off of the Champs Elysees near the Place de la Concorde.
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