*
*

X

Заказать работу

оценка заказа бесплатно

Hvac systems

контрольные работы, Английский язык

Объем работы: 7 стр.

Год сдачи: 2012

Стоимость: 10 бел рублей (323 рф рублей, 5 долларов)

Просмотров: 310

 

Не подходит работа?
Узнай цену на написание.

Оглавление
Заказать работу
3.Read the text carefully and translate it into Russian.
Text A. HVAC systems (2891)
HVAC (pronounced either "H-V-A-C" or, occasionally, "H-vak") is an initialism or acronym that stands for "heating, ventilating, and air conditioning". HVAC is sometimes referred to as climate control and is particularly important in the design of medium to large industrial and office buildings such as skyscrapers and in marine environments such as aquariums, where humidity and temperature must all be closely regulated whilst maintaining safe and healthy conditions within. In certain regions (e.g., UK) the term "Building Services" is also used, but may also include plumbing and electrical systems. Refrigeration is sometimes added to the field's abbreviation as HVAC&R or HVACR, or ventilating is dropped as HACR.
Heating, ventilating, and air conditioning is based on the basic principles of thermodynamics, fluid mechanics, and heat transfer, and inventions and discoveries made by Michael Faraday, Willis Garrier, Reuben Trane, James Joule, William Rankine, Sadi Ca
ot, and many others. The invention of the components of HVAC systems goes hand-in-hand with the industrial revolution, and new methods of mode
ization, higher efficiency, and system control are constantly introduced by companies and inventors all over the world.
The three functions of heating, ventilating, and air-conditioning are closely interrelated. All seek to provide thermal comfort, acceptable indoor air quality, and reasonable installation, operation, and maintenance costs. HVAC system can provide ventilation, reduce air infiltration, and maintain pressure relationships between spaces. How air is delivered to, and removed from spaces is known as room air distribution.
In mode
buildings the design, installation, and control systems of these functions are integrated into one or more HVAC systems. For very small buildings, contractors normally "size" and select HVAC systems and equipment....

После офорления заказа Вам будут доступны содержание, введение, список литературы*
*- если автор дал согласие и выложил это описание.

Эту работу можно получить в офисе или после поступления денег на счет в течении 30 минут.
ФИО *


E-mail для получения работы *


Телефон *


Дополнительная информация, вопросы, комментарии:


С условиями прибретения работы согласен.

 
Добавить страницу в закладки
Отправить ссылку другу