- •Англійська мова
- •Lesson 1
- •1. Read and memorize the following words:
- •2. Read and memorize the following word combinations:
- •3. Read and translate the text into Ukrainian. Chemical engineering and chemistry
- •4. Answer the questions to the text:
- •6. Match the words from the text to their synonyms:
- •7. Translate the following sentences paying attention to the Objective and Subjective Infinitive Constructions:
- •8. Pick up the key words from the text “Chemical engineering and chemistry”. Make up your own sentences with them.
- •3. Read and translate the text into Ukrainian. Unit operations in chemical engineering
- •4. Answer the questions to the text:
- •5. Form derivatives from the following words and translate them into Ukrainian:
- •6. Fill in the gaps using the terms denoting unit operations from the table below:
- •7. Match the columns to make up word combinations and translate them into Ukrainian:
- •8. Translate into English using a technical dictionary:
- •9. Pick up the key words from the text “Unit operations in chemical engineering”. Make up your own sentences with them.
- •2. Read and memorize the following word combinations:
- •3. Read and translate the text into Ukrainian:
- •Industrial dryers
- •4. Answer the questions to the text:
- •6. Match the words from the text with their synonyms on the right:
- •7. Point out the sentences containing information directly from the text:
- •8. Point out the word combinations with Participial constructions. Define the type of the Participle.
- •3. Read and translate the text into Ukrainian. Filtration and filters
- •3. Answer the questions to the text:
- •5. Fill in the gaps with the words from the text and translate them into Ukrainian:
- •6. Change the following sentences according to the model.
- •2. Read and memorize the following word combinations
- •3. Read and translate the text into Ukrainian. Centrifuges
- •4. Answer the questions to the text:
- •5. Change the following sentences according to the model:
- •6. Translate into Ukrainian paying attention to the word “since”:
- •7. Say if the following statements are true or false. If the statement is false
- •8. Choose the correct continuation to complete the following statements:
- •2. Read and memorize the following word combinations
- •3. Read and translate the text into Ukrainian. Mixing and blending
- •4. Answer the questions to the text:
- •5. Fill in the gaps with the words from the text and translate these word combinations into Ukrainian:
- •6. Choose the correct grammar form for each sentence:
- •6. Say if the following statements are true or false. If the statement is false explain why:
- •3. Read and translate the text into Ukrainian: Heat exchangers
- •4. Answer the questions to the text:
- •5. Choose the correct continuation to complete the following statements:
- •6. Fill in the gaps with the suitable words from the box:
- •7. Which of the following sentences from the text contain the Passive Voice forms? Explain how you define these forms.
- •6. Say if the following statements are true or false. If the statement is false explain why:
- •3. Read and translate the text into Ukrainian: Crushers
- •4. Answer the questions to the text:
- •5. Match the words to make up possible word combinations:
- •6. Try to put these words in the right order and make a sentence:
- •7. Say if the statement is true or false. If the statement is false give the correct answer:
- •8. Read the following text. Retell it to a partner:
- •9. Open the brackets choosing the correct form of the Participles. Translate the sentences into Ukrainian:
- •10. Use the following sentences in all the forms and tenses adding suitable adverbial modifiers where necessary:
- •2. Read and memorize the following word combinations:
- •3. Read and translate the text into Ukrainian. Grinders
- •4. Answer the questions to the text:
- •5. Say if the following statements are true or false. If the statement is false
- •6. Сhoose the correct item to complete the following statements:
- •5. Match the words to make up possible word combinations and translate them into Ukrainian:
- •6. Fill in the gaps using a suitable word from the table:
- •7. Find out the sentences containing gerundial constructions and define the function of Gerund:
- •8. Make a brief engineering report explaining the difference between a ball mill and an impact crusher. Mention the design, the principle of work and materials to be processed.
- •Reading strategies
- •Writing abstracts
- •Особливості перекладу науково-технічного тексту
3. Read and translate the text into Ukrainian. Unit operations in chemical engineering
The individual processes used by chemical engineers (e.g. distillation or chlorination) are called unit operations and consist of chemical reaction, mass-, heat- and momentum- transfer operations.
In chemical engineering and related fields, a unit operation is a basic step in a process. A process may have many unit operations to obtain the desired product.
In 1923 William H. Walker, Warren K. Lewis and William H. McAdams wrote the book “The Principles of Chemical Engineering” and explained the variety of chemical industries have processes which follow the same physical laws. They summed-up these similar processes into unit operations. Each unit operation follows the same physical laws and may be used in all chemical industries. The unit operations form the fundamental principles of chemical engineering. Most unit operations are based mechanistically upon the fundamental transport processes of mass transfer, heat transfer, and fluid flow (momentum transfer). Unit operations based on fluid mechanics include fluid transport (such as pumping), mixing/agitation, filtration, clarification, thickening or sedimentation, classification, and centrifugation. Operations based on heat transfer include heat exchange, condensation, evaporation, furnaces or kilns, drying, cooling towers, and freezing or thawing. Operations that are based on mass transfer include distillation, solvent extraction, leaching, absorption or desorption, adsorption, ion exchange, humidification or dehumidification, gaseous diffusion, crystallization, and thermal diffusion. Operations that are based on mechanical principles include screening, solids handling, size reduction, flotation, magnetic separation, and electrostatic precipitation.
Therefore, chemical engineering unit operations consist of five classes:
Fluid flow processes, including fluids transportation, filtration, solids fluidization
Heat transfer processes, including evaporation, condensation
Mass transfer processes, including gas absorption, distillation, extraction, adsorption, drying
Thermodynamic processes, including gas liquefaction, refrigeration
Mechanical processes, including solids transportation, crushing and pulverization, screening and sieving
Chemical engineering unit operations also fall in the categories such as combination (mixing); separation (distillation); reaction (chemical reaction). Chemical engineering unit operations and chemical engineering unit processing form the main principles of all kinds of chemical industries and are the foundation of designs of chemical plants, factories and equipment used.
4. Answer the questions to the text:
1. What is a unit operation in chemical engineering and related fields?
2. What did William H. Walker et al explain in the book “The Principles of Chemical Engineering”?
3. What fundamental transport processes are most unit operations based upon?
4. What classes do chemical engineering unit operations consist of?
5. What do chemical engineering unit operations and chemical engineering unit processing form?