Методическая разработка по английскому языку "Refrigeration equipment" для студентов СПО по специальности 15.02.06 Монтаж, техническая эксплуатация и ремонт холодильно-компрессорных и теплонасосных машин и установок

Refrigeration equipment

Before you read the passage, talk about these questions.

1)      What do you know about refrigeration equipment?

2)      What kind of refrigeration equipment do you know?

Refrigeration equipment is used to remove heat from a space or object, and then transfer that heat to another space or object. This process is used to keep food and other products cold, to cool air in buildings, and to power air conditioners.

The basic components of a refrigeration system are the compressor, the condenser, the expansion device, and the evaporator. The compressor is the heart of the system, and it is responsible for compressing the refrigerant gas. The condenser is where the refrigerant gas is cooled and condensed back into a liquid. The expansion device is where the refrigerant liquid is allowed to expand, which causes it to vaporize and absorb heat. The evaporator is where the refrigerant vapor absorbs heat from the space or object that is being cooled.

There are two main types of refrigeration systems: vapor compression systems and absorption systems. Vapor compression systems are the most common type of refrigeration system, and they use a refrigerant gas that is compressed and then allowed to expand. Absorption systems use a refrigerant liquid that is absorbed by a hygroscopic material, and then released to evaporate.

Types of Refrigeration Equipment

There are many different types of refrigeration equipment available, each with its own unique set of features and benefits. Some of the most common types of refrigeration equipment include:

– Refrigerators:

Refrigerators are the most common type of refrigeration equipment, and they are used to store food and beverages. Refrigerators typically use a vapor compression system, and they are available in a variety of sizes and styles.

– Freezers:

Freezers are used to store frozen food and beverages. Freezers typically use a vapor compression system, and they are available in a variety of sizes and styles.

– Air conditioners:

Air conditioners are used to cool air in buildings. Air conditioners typically use a vapor compression system, and they are available in a variety of sizes and styles.

– Chillers:

Chillers are used to cool water or other liquids. Chillers typically use a vapor compression system, and they are available in a variety of sizes and styles.

– Industrial refrigerators:

Industrial refrigerators are used to store large quantities of food and beverages. Industrial refrigerators typically use a vapor compression system, and they are available in a variety of sizes and styles.

1.      Write out the underlined words and phrases, and translate them from English into Russian.

2.      Complete the diagram.

types of refrigeration systems

3.      Answer the following questions:

1)      What are the basic components of a refrigeration system?

2)      What is considered to be the heart of the system?

3)      What are two main types of refrigeration systems?

4)      What are vapor compression systems?

5)      What are absorption systems?

6)      What are the types of refrigeration equipment available?

4.      Complete the following table.

5.      Complete the following sentences:

1)      This process is used to keep food and other products cold, … /

2)      Refrigerators are the most common type of refrigeration equipment, … .

3)      Vapor compression systems are the most common type of refrigeration system, … .

4)      The expansion device is where … .

5)      Industrial refrigerators typically use … .

6)      Chillers typically use a vapor compression system, … .

6.      Match the words (1-4) with the definitions (A-D).

1 – compressor

2 – condenser

3 -  expansion device

4 – evaporator

A.  A heat-exchanging device used in condensing gaseous or vapour-state substances into a liquid state.

B.  A device essentially consists of a pump and a motor and is responsible for the circulation of refrigerant throughout the refrigerator (or any cooling appliance for that matter). It squeezes (compresses) the refrigerant and increases its pressure and temperature.

C.   a type of heat exchanger device that facilitates evaporation by utilizing conductive and convective heat transfer to provide the necessary thermal energy for phase transition from liquid to vapor.

D.  A device is responsible for regulating the flow of the refrigerant, which is the substance that cools the air inside the fridge. It controls the pressure of the refrigerant as it passes through the system, ensuring that it expands and contracts in the right way to facilitate the cooling process.

7.       Agree or disagree with the following statements using the expressions. Give the right answer.

For agreement                                             For disagreement

 That’s right                                           I don’t agree with you

 I agree with you                                    I wouldn’t say so

 Sure                                                       You are wrong

 Quite right                                            No, I don’t think that’s correct 

1)      The basic components of a refrigeration system are the compressor, the condenser, the expansion device, and the evaporator.

2)      The compressor is the heart of the system, and it is not responsible for compressing the refrigerant gas.

3)      Air conditioners typically use absorption systems, and they are available in a variety of sizes and styles.

4)      Vapor compression systems are the most common type of refrigeration system, and they use a refrigerant gas that is compressed and then allowed to expand.

5)      The evaporator is where the refrigerant vapor absorbs heat from the space or object that is not being cooled.

6)      Refrigeration equipment is used to remove cold from a space or object, and then transfer that heat to another space or object.