- •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
1. Match the words with their translation.
функция, испаритель, масло, давление, пар, детонация, повреждение/удар, пор-
шень, содержание, сжимать, спираль, винт.
2. Read the text and answer the questions.
The compressor.
The vapour from the evaporator is compressed from the evaporation pressure to the
condensing pressure. The compressor is mechanically complicated but its function
is simple and easy to monitor and it is usually dependable. Normally the worst thing
that can happen is liquid hammering, equivalent to knocking in a motor.
Different compressor types respond differently to liquid hammering, the most sen-
sitive being the piston and the scroll compressor. The least sensitive is the screw
compressor, possibly because of the oil content.
3. Answer the questions.
1. How is the vapour from the evaporator compressed?
2. Is the compressor’s function complicated and difficult to monitor?
3. What is the worst thing that can happen to compressor?
4. What types of compressors are the most sensitive?
5. What types of compressors are the least sensitive?
4. Correct these statements.
1. The compressor doesn’t have complicated construction.
2. It’s not a reliable device.
3. The piston and the scroll compressors aren’t the most sensitive.
5. Give the best translation to these sentences.
1. The compressor operates at a considerably higher temperature than the
evaporator.
2. The discharge temperature from the compressor increases.
3. There is also the danger that the liquid accumulated in the separator is
flushed out and into the compressor therefore with damages.
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6. Complete the sentences with the correct form of the verbs
in brackets.
1. The liquid part(evaporate)____________ and a pure vapour (leave)_____
the evaporator and (enter)___________ the compressor.(Present Simple)
2. The liquid part(evaporate)___ _______ and a pure vapor (leave)___
the evaporator and (enter)__ _____the compressor.(Present Continuous).
3 The liquid part (evaporate)___ _______ and a pure vapor(leave)____
evaporator and( enter) ____ _______ the compressor(Present Perfect).
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Evaporators, condensers and interchangers.
Key words
Brazed plate heat exchanger (BPAE), welded plate heat exchanger (AWPHE), semiwelded plate heat exchanger(SWPHE),liquid, copper, fluid,
corrosion, rubber, stainless, refrigerant, thermal, hydraulic.
1. Match the Key words with their translation.
жидкость, полусварной пластинчатый теплообменник, среда, хладагент, резина, гидравлический, нержавеющий, тепловой, коррозийный, медь, паяный пластинчатый теплообменник, сварной пластинчатый теплообменник.