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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.

Forced ventilation is used to control indoor air quality. Excess humidity Authentic Tyler Toffoli Jersey , 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. Authentic Tanner Pearson Jersey , an attic), 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 table floor 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 Authentic Derek Forbort Jersey , 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 Authentic Alex Iafallo Jersey , but use mechanical systems' fans, ducts, dampers Authentic Mike Cammalleri Jersey , and control systems to introduce and distribute cool outdoor air when appropriate.

Additional information can be found at the AB Blower company web site http:www.abbblowerproductsindustrial_fans

Susann Terlitski
Designer of Industrial Air Handling Units
AB Blower Co.
nis@primus.ca
http:www.abbblowercontactcontact_us
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by Wang Bowen

BEIJING, July 4 (Xinhua) -- Cooperation with China will bring massive opportunities for Greece and many other countries, Greek Prime Minister Alexis Tsipras told Xinhua on Monday.

The Greek head of government is in Beijing for a five-day visit to boost bilateral cooperation and lure more Chinese investment to help revive his country's flagging economy.

"Greece serves as the portal into Europe both by land and by sea," the Greek leader told Xinhua, adding that Greece would like to conduct practical cooperation with China in various areas, following the "dragon head" project of the Piraeus Port.

Just days before Tsipras's China visit, Greek lawmakers ratified the acquisition deal between China's leading shipping company COSCO and the Piraeus Port Authority.

Under the deal, COSCO will pay 368.5 million euros (402.4 million U.S. dollars) to buy 67 percent of the shares of the port and take over the management.

Noting that his ongoing China trip aims to "build the body of the dragon" for future cooperation, the Greek leader said he would explore cooperation prospects in the fields of tourism, transport, culture, high-tech and such, with the Chinese side.

"We received 6 million foreign tourists last year, but Chinese tourists made up only a small proportion of that figure," the prime minister said. "Hopefully two-way tourism could be boosted through such measures as direct flights."

On Sunday, Tsipras met with Wang Jianlin, president of Wanda Group, a leading Chinese real estate developer who has in recent years invested heavily in the leisure industry, including cinema chains and theme parks.

According to media reports, the Chinese businessman expressed inte. Cheap Grizzlies Jerseys   Wholesale Clippers Jerseys   Wholesale Celtics Jerseys   Wholesale Cavaliers Jerseys   Wholesale Bulls Jerseys   Wholesale Bucks Jerseys   Wholesale Thunder Jerseys   Wholesale Washington Wizards Jerseys   Wholesale Golden State Warriors Jerseys   Wholesale Phoenix Suns Jerseys 
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