- •Міністерство аграрної політики україни
- •Table of Contents. (Зміст)
- •Plate Heat Exchanger. ( The main components).
- •1. Match the words from the left column with their translations in the right
- •2. Make up sentences with the key words.
- •3. Read the text and find the sentences with the key words in the text. Main components.
- •4. Discuss the questions.
- •Vocabulary.
- •A direct expansion evaporator.
- •1 Match the key words with their translations.
- •2. Write your ideas of what you would like to know about a direct expansion evaporator.
- •3. Read the text and say if you have found the answer. A direct expansion evaporator.
- •Vocabulary.
- •Flooded flow
- •Flooded flow.
- •6. Complete the sentences.
- •7. Discuss the questions
- •8. Complete the sentences with the correct form of the verbs in bra-
- •9. Translate these sentences into English.
- •Vocabulary.
- •The basic refrigeration cycle.
- •1. Match the words from the left column with their definitions in the right column.
- •2. Write your ideas of what you would like to know about the basic refrigeration cycle.
- •3. Read the text and say if you have found the answer. The basic refrigeration cycle.
- •4. Find the sentences with the key words in the text guess the meaning. Use a dictionary to check the answer.
- •5. Discuss the questions.
- •1. Read the text, find the sentences with the key words and guess the meaning. Use a dictionary to check the answer. The basic refrigeration cycle. Part 2
- •2. Read the text again. Answer these questions.
- •The expansion process and devices
- •In all types of the refrigeration cycle there is a step where liquid refrigerant is expanded from the condensing pressure to the evaporating pressure. Refrigerant evapo-
- •2. Read the text again and correct the mistakes. Begin your answer with:
- •3. Complete the sentences.
- •4. Give affirmative answers to the following questions according to the given model:
- •5. Complete the with the correct forms of the verbs given in brackets.
- •Vocabulary
- •1. Match the words from the left column with their definitions in the right colomn.
- •2. Write your ideas of what you would like to know about the pressure drop.
- •3. Read the text and say if you have found the answer. Methods to control the pressure drop
- •4. Find the key words in the text and guess the meaning. Use a dictionary to check the answer.
- •5. Discuss the question.
- •Vocabulary.
- •The compressor.
- •1. Match the words with their translation.
- •2. Read the text and answer the questions.
- •Evaporators, condensers and interchangers.
- •1. Match the Key words with their translation.
- •2. Use your knowledge and answer the questions.
- •3. Now read the text quickly and check your guesses. Evaporators, condensers and interchangers.
- •4. Read the text more carefully.
- •6. Make these sentences negative.
- •Vocabulary.
- •Literature.
- •Рецензія
Plate Heat Exchanger. ( The main components).
Key words
Frame plate, carrying bar, bolt protection, support column, tightening bolts, connections,
channel plates, pressure plate, guiding bar, protective sheets, pipe connections, heat exchanger.
1. Match the words from the left column with their translations in the right
column.
1. bolt protection .a.теплообменник 2. carrying bar b патрубок
3. channel plate c опорная стойка
4. connection d прижимная стойка
5. guiding bar e защитная панель
6. pipe connection f стягивающий болт
7. pressure plate g несущий стержень
8. protective sheet h соединение
9. support column i канальная пластина
10. tightening bolt g направляющий стержень
11. heat exchanger k опорная пластина.
2. Make up sentences with the key words.
3. Read the text and find the sentences with the key words in the text. Main components.
A plate heat exchanger consists of a frame plate, a pressure plate, channel plates, a carrying bar, a support column, a guiding bar, a bolt protection, tightening bolts, connections,
pipe connections and protective sheets that are mandatory in the USA, but in other countries
are optional.
Carrying bar carries the channel plates and the pressure plate. Heat is transferred
from one medium to the other through the thin channel plates. The number of plates determines the total heat transfer surface. A Pressure plate is a moveable steel plate. In
cases pipes can be connected to the pressure plate. A guiding bar keeps the channel plates in line at their lower end. The holes through the frame plate, permitting the media to enter into the heat exchanger are called connections. Threaded studs around the holes secure the pipes to the apparatus. Metallic or rubber-type linings may be used to protect the holes against corrosion. Connections can also be pipes for welding or threaded. Tightening bolts
press the channel plates together.
2
4. Discuss the questions.
1. Which parts permit the media to enter into the heat exchanger?
2. How is heat transferred from one medium to the other?
3. What is used to protect the holes against corrosion?
4. Which part keeps the channel plates in line at their lower end?
Vocabulary.
main component - основные детали
to press – прижимать, стягивать (зд.)
a hole – отверстие
to permit – разрешать
medium – носитель
thread – резьба
stud – шпилька
lining – прокладка
to protect – защищать
corrosion – коррозия
welding – сварка
surface – поверхность
moveable – подвижный
3
A direct expansion evaporator.
Key words
A direct expansion evaporator, liquid hammering, damage, superheated, thermostatic, pulse modulated motor, a step motor, heat motor, vapour, mixture.