working fluid. Using boiling water to produce motion goes back about 2000 years‚ but early devices were not practical. Since the late 1700’s steam engines have become a major source of mechanical power. The first steam-powered devices were used to pump water out of mines. In 1781‚ James Watt patented a steam engine that produced continuous rotative motion. These engines enabled a wide range of manufacturing machinery to be powered. These engines could be sited anywhere that water‚ coal or wood fuel
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combustible and get the most out of the energy contained in the fuel mixture. Since the mixture is ignited within the engine‚ automobile power plants are called internal combustion engines. Most can be further classified as reciprocating piston engines‚ since pistons move up and down within cylinders to provide power. This up-and-down motion is converted into turning motion by the crankshaft. Some of the main engine components This course will provide an introduction to automotive engines and engine
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ASSIGNMENT 1 Textbook Assignment: “Introduction to the Machinist’s Mate (Surface) Rate” and “Steam Turbines‚” chapters 1 and 2‚ pages 1-1 through 2-32. 1-1. If you are assigned to the M division‚ which of the following terms best describes your rating? 1. General 1-2. A Machinist’s Mate (MM) (Surface) in the M division will most likely maintain which of the following equipment? 4. Propulsion machinery 1-3. As you move up the promotion ladder to MM3 and then to MM2‚ your technical
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hydraulics is the area of a piston‚ the distance it moves and the volume of fluid displaced. In hydraulics mechanical devices are used called actuators‚ these Actuators consist of an encased movable piston. (2) Volume = Area X Distance Using this equation the volume required to move the piston with an area by a Certain distance can be determined or any other variable in mind. DIFFERENTIAL AREAS Differential areas this is caused by the area of the piston being reduced on one
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unfeasible because if it is much shorter than that‚ the cost of extensions line from the power grid will be cheaper. PGSEP is looking for a local group or company to undertake the project commercially because the contract prohibits PGSEP from commercializing the venture. Anton Co the entrepreneur-owner of ALCO Group along with Bingo Dimalata‚ the consultant of the company‚ were invited to see the prospects. Anton Co’s intuition was optimistic but he asked Bingo to the make a study and assessment on
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THERMODYNAMICS ENR TECH 3TD3 COMPRESSOR TYPES AND APPLICATIONS PROJECT INSTRUCTOR: DR. REYAD AL-TAIE DATE: JUNE 26‚ 2013 Contents ------------------------------------------------------------------------ I. Introduction………………………………………......3 II. Thermodynamics Properties………...….……………5 III. Thermodynamic Laws……………………………….6 IV. Compression Cycles…………………………………7
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was one of the first devices to use the power of steam for mechanical work. It was originally used to pump water from mines. A boiler‚ encased in brick and sitting over a coal fire‚ generated steam‚ which drove the piston in the open top cylinder above the boiler. When the steam built up‚ the pressure opened a value allowing the steam to fill the cylinder and push the piston up. When the piston reached the top of the cylinder‚ the first valve was closed and the second valve opened. This second valve
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are designed to prevent skidding and help drivers maintain steering control during an emergency stopping situation. In cars equipped with conventional brakes‚ the driver pumps the brakes‚ whereas in cars equipped with four-wheel ABS‚ the driver keeps a firm foot on the brake‚ allowing the system to rapidly and automatically pump the brakes. Because the wheels don ’t lock‚ drivers have the ability to steer around hazards if they are unable to stop in time. Thus‚ ABS improves vehicle stability‚ steerability
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HYDRAULIC THEORY Introduction A hydraulic system is defined as a‚ ‘machinery unit which uses fluid as a pressure medium’. It has a number of advantages over an electrical system of a similar working capacity. Advantages: (1) The power to weight ratio is at least 14 times better than an equivalent electrical system. (2) Self-resetting overload protection. (3) Self-lubricating. (4) Infinitely variable speeds. (5) No static electricity. (6) Linear motion.
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principles of operation‚ and basic maintenance of diesel engines‚ reduction gears‚ and related auxiliary equipment and support systems; the design‚ construction‚ principles of operation‚ application‚ and basic maintenance of mechanical components such as pumps‚ valves‚ and control devices; the design‚ principles of operation‚ and basic maintenance of marine auxiliary equipment‚ specifically compressed air systems‚ distilling plants‚ evaporators‚ refrigeration and air-conditioning systems‚ deck machinery
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