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ESP Engineering
- 1. English for Specific Purposes Series English for Engineering Developed by Polyglot12 Consulting Copyright 2014 www.polyglot12.pw
- 2. ESESP1200 Refrigerator Part 1 Pre-writing Practice Directions: Each student takes a turn to pick a word from the envelope. The goal is to define the word in English without using a word that is the same as the object. Audience tries to guess the identity of the object. This is like the game Password. noun verb compressor high pressure ammonia gas coils liquid ammonia low pressure area expansion valve compress pressurize liquefy recirculates vaporize Part 2 Sentence Writing Activity Directions: Put a list of 10-20 ESP words on the whiteboard. Ask students in pairs to create 5 possible sentences by using at least two words in each sentence until all words have been used. Sentence Writing Activity Follow-up A Directions: After they have written their sentences, present authentic materials related to the topic that contains the words either as a short reading passage or audio recording. Ask them to compare their sentences with those in the authentic materials. Reading Passage The compressor compresses ammonia gas. When the gas is compressed, it heats up as it is pressurized. Then the compressed gas passes through the coils of the refrigerator where the gas loses its heat. As it cools, the gas can liquefy due to high pressure. Next liquid ammonia flows through the expansion valve. Between the valve and the compressor, there is a low-pressure area because the compressor is pulling gas out of that side. When the liquid ammonia hits the low pressure area, it boils and vaporizes. The coils pass through the freezer and regular part of the refrigerator where the colder ammonia in the coil pulls the heat out of the compartment, thereby making the freezer and entire
- 3. ESESP1200 Refrigerator refrigerator colder. Finally, the compressor sucks up the cold ammonia gas, which recirculates through the same process. (reference: http://www.energyquest.ca.gov/how_it_works/refrigerator.html) Sentence Writing Activity Follow-up B Directions: Complete the sentences by using the correct word. The first letter of the key word is a clue. The c_______ compresses ammonia gas. When the gas is compressed, it heats up as it is p_______. Then the compressed gas passes through the c_______ of the refrigerator where the gas loses its heat. As it cools, the gas can l_______ due to high pressure. Next liquid ammonia flows through the e_______ v_______. Between the valve and the compressor, there is a l_______ p_______ a_______ because the compressor is pulling gas out of that side. When the liquid ammonia hits the low pressure area, it boils and v_______. The coils pass though the freezer and regular part of the refrigerator where the colder a_______ in the coil pulls the heat out of the compartment, thereby making the freezer and entire refrigerator colder. Finally, the compressor sucks up the cold ammonia gas, which r_______ through the same process. Sentence Writing Activity Follow-up C Directions: Distribute a copy of a diagram of the refrigerator and main parts (compressor, coils, expansion valve, freezer) to each pair or group. (This can be a complete diagram or part of one). Ask students brainstorm in order to write sentences to describe the diagram without consulting textbook or notes. Collect the diagrams and descriptions and number them randomly. Display the diagrams and descriptions around the room. Ask the students to match the number of the diagram and descriptions.
- 4. ESESP1200 Refrigerator Part 3 Paragraph Writing: User’s Guide Imagine that your factory needs to train refrigerator repairmen. In about 300 words, write a user guide, giving instructions on how a refrigerator works so that a repairman can trouble-shoot it. Make sure to describe the function of each part (compressor, coils, expansion valve, freezer). Use the information given in the pictures below to write your user guide.