Steam Engine
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Publicado: 7 de agosto de 2012
THE STEAM ENGINE PLANT – TEST KEYS
Ex. 1 Study the diagram representing a steam engine plant and identify the components. P3 condensate pump P1 main feed pump P2 main circulating pump
F Aeconomiser
C G
superheater
B D
hot well
condenser
turbine
boiler furnace
Ex. 2 Answer the questions. Use complete sentences. 1. What is the main function of a marine steam engineplant? The main function of a marine steam engine plant is to produce mechanical energy to propel the ship. 2. What does steam do in a marine steam engine plant and why is it defined as the "workingfluid"? The steam in a marine steam engine plant operates the moving parts in the engine. It is defined as the "working fluid" because it is the source of the heat energy. 3. What are the basic areas ofsteam operation in this plant? The basic areas of steam operation in this plant are generation, expansion, condensation and feed. 4. Where does steam receive its heat energy? The steam receives itsheat energy in the boiler. Ex. 3 Complete the sentences. 1. The engine is an energy converter. 2. Water converts into steam when it reaches boiling point. 3. At an oil refinery, crude oil is convertedinto many different oil products. 4. Steam is converted/converts into water in the condenser. Ex. 4 Fill in the gaps in the text using the given words. The main parts of a steam engine plant are theboiler, the main engine and the condenser. Mechanical work is produced by using the heat energy of steam as the working fluid. First, water is heated and transformed into
team; some of this heatenergy is used in the turbine while any remaining heat is cooled down and the steam turned back into water again. Ex. 5 Underline the 5 mistakes in the text and write the correct answers on the dottedlines. 1) There are four types of engines commonly used nowadays; electric motors and heat two engines. 2) The former produce heat from light, the latter convert petrol into mechanical work....
Ex. 1 Study the diagram representing a steam engine plant and identify the components. P3 condensate pump P1 main feed pump P2 main circulating pump
F Aeconomiser
C G
superheater
B D
hot well
condenser
turbine
boiler furnace
Ex. 2 Answer the questions. Use complete sentences. 1. What is the main function of a marine steam engineplant? The main function of a marine steam engine plant is to produce mechanical energy to propel the ship. 2. What does steam do in a marine steam engine plant and why is it defined as the "workingfluid"? The steam in a marine steam engine plant operates the moving parts in the engine. It is defined as the "working fluid" because it is the source of the heat energy. 3. What are the basic areas ofsteam operation in this plant? The basic areas of steam operation in this plant are generation, expansion, condensation and feed. 4. Where does steam receive its heat energy? The steam receives itsheat energy in the boiler. Ex. 3 Complete the sentences. 1. The engine is an energy converter. 2. Water converts into steam when it reaches boiling point. 3. At an oil refinery, crude oil is convertedinto many different oil products. 4. Steam is converted/converts into water in the condenser. Ex. 4 Fill in the gaps in the text using the given words. The main parts of a steam engine plant are theboiler, the main engine and the condenser. Mechanical work is produced by using the heat energy of steam as the working fluid. First, water is heated and transformed into
team; some of this heatenergy is used in the turbine while any remaining heat is cooled down and the steam turned back into water again. Ex. 5 Underline the 5 mistakes in the text and write the correct answers on the dottedlines. 1) There are four types of engines commonly used nowadays; electric motors and heat two engines. 2) The former produce heat from light, the latter convert petrol into mechanical work....
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