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tujue  
#1 Posted : Tuesday, July 24, 2018 5:50:58 AM(UTC)
tujue

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LONDON Authentic Emmanuel Mudiay Jersey , Aug. 7 (Xinhua) -- A Hobbit house in England's PeakDistrict National Park was added Monday to Britain's official listof protected historic buildings.


The Hobbit house, built as a family home in the early 1970s, wasBritain's first modern earth-sheltered house, hence its name fromthe famous J.R. R. Tolkien adventures.


It is one of five fascinating places that were awarded protectedstatus from the Department for Digital, Culture, Media & Sport(DCMS) on the advice of Historic England to mark 70 years ofprotecting England's historic buildings.


The list also includes a London cabbie's shelter, a First WorldWar wireless station, a daring home in the woods, and a Jewishcemetery.


The official listing to protect historic, important andinteresting buildings was created after the destruction caused bywidespread bombing during the Second World War. Historic England'slist now has around 400,000 entries.


Debbie Mays, head of listing at Historic England, said: "Thediverse character of our land and its people is marked in thefabric of England's buildings and places.


"For 70 years, the most special historic sites have beenprotected through the listing so they can be enjoyed by futuregenerations," she said.


The Hobbit house, named Underhill in West Yorkshire, wasdesigned in 1973 by Arthur Quarmby as a home for himself and hisfamily. It has been described as a luxury hobbit's home because ofits captivating design.


The environmentally-sensitive, underground house disappears intothe rolling green moor, creating a harmony between natural andman-made worlds. Enditem

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.

Ventilating is the process of changing or replacing air in any space to control temperature or remove moisture, odors, 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, to prevent stagnation of the interior air.

Canada 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.

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, 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), 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, 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, but use mechanical systems' fans, ducts, dampers, and control systems to introduce and distribute cool outdoor air when appropriate.

For additional information please refer to http:www.cincinnatifan.netcanadianblowervaneaxial

Oleg Tchetchel
Ventilation Equipment Engineer
Canada Fan Co.
[email protected]
http:www.cincinnatifan.netcanadianblowerductfan
http:www.cincinnatifan.netcanadianblowertubeaxial

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