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6. Read the text and give its summary using the suggested words and expressions. Air conditioning

The term air conditioning includes any ventilation system with fan and heater. True air conditioning is providing control of temperature, humidity and purity of air in summer and winter. It involves means for warming and humidifying in winter, and for cooking and dehumidifying in summer. Air conditioning is finding an ever widening application in industry. Accurate control of atmospheric conditions is very important for industrial proc­esses. Air conditioning systems vary in complexity and cost. Complex systems are finding their application in air conditioning of a multistory of­fice block, factory, cinema or theatre.

There are two main sections of air conditioning:

  1. for industrial processes,

  2. for human comfort

Air conditions system for industrial processes produces air of prede­termined temperature and moisture content. It keeps the air from all exter­nal influences. There are three types of air conditioning - winter, summer and complete.

Winter air conditioning includes cleaning, heating, humidifying and circulating of air. It is finding its application in office buildings, auditori­ums, schools and residences. Summer air conditioning includes cleaning, cooling, dehumidifying and circulating of air. The people use summer air conditioning in stores. Complete air conditioning includes winter and summer functions. It is used in theatres, large department stores. Each type of air conditioning depends upon the climatic conditions.

1 term

термин

2 air conditioning

кондиционирование воздуха

3 to provide

обеспечить

4 humidity

влажность

5 to involve

включать

6 to humidify

увлажнять

7 to design

проектировать, предназначать

8 to determine

определять

9 to include

включать

10 to circulate

циркулировать

11 fan

вентилятор

12 heater

подогреватель, отопительный прибор

7. Make the following sentences complete:

  1. There are many factors in air-conditioning, which are of importance, but the most important ones are...

  2. Air - motion distributes the air…

  3. Air -motion is caused by heating or…

  4. Air - motion takes place because of the difference between…

  5. Air-conditioning systems include a fan,…

8. Read the beginning of the text, complete it basing your information on the items of the plan:

THE PLAN.

  1. What do we understand by air-conditioning?

  2. Where can air-conditioning systems be installed?

  3. What factors does air-conditioning control?

  4. What pieces of equipment are used in air-conditioning?

THE TEXT. (THE BEGINNING ).

The term air-conditioning has been widely used. For many years we have introduced air into buildings after heating, dehumidifying and in some cases, cooling it and we have called that process ventilation……………………………

Read the text "Principles of air-conditioning " and:

  1. Find the definition of air-conditioning.

  2. Enumerate the factors controlled by air-conditioning.

  3. Pick out sentences which stress the importance of air-conditioning.

  4. State in what way the text presents the difference between the process of ventilation and air-conditioning.

PRINCIPLES OF AIR-CONDITIONING“

The term air conditioning has been so widely and loosely used that we should be careful in trying to understand its true meaning. For many years we have introduced air into buildings after heating, dehumidifying and in some cases, cooling it. And we have called that process ventilation. In recent years much greater stress has been laid on the treatment of air and we call the process air conditioning. Thus, air conditioning is the treatment of air to make it either more comfortable and healthful for peo­ple or more suitable for manufacturing processes. Developments of the last twenty years have changed our conception of air conditioning. Air condi­tioning is required for offices, department stores, hospitals, hotels and dwelling houses. But the techniques of air conditioning have not kept pace with the increasing demand. The cost of an air conditioning system influ­ences the cost of building, as it need the additional height and floor areas to mount this air conditioning.

Some efforts have been made to reduce the space occupied by air conditioning. But they have not been definitive, except some methods that have been used for many years.

Air conditioning is rapidly being adopted in passenger ships and automobiles. Car heaters have been employed for some time new equip­ment has been designed to maintain interiors temperature in summer and winter.

1

to lay stress on

уделять внимание

2

meaning

значение

3

conception

понятие

4

technique

метод

5

to keep pace with

идти наравне

6

to reduce

уменьшать

7

to adopte

принимать

8

to employ

применять

9

to occupy

занимать

10

definitive

определённый

11

automobile

автомобиль