advantages disadvantages of beam engine mechanism
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please sent the advantages and disadvantages of beam engine mechanism
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#2
Adavantage and disadvantage of beam engine
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A beam motor is a type of steam engine in which a rotating head beam is used to apply the force of a vertical piston to a vertical connecting rod. This configuration, with the engine directly driving a pump, was first used by Thomas Newcomen around 1705 to remove water from mines in Cornwall. Engine efficiency was improved by engineers including James Watt who added a separate condenser, Jonathan Hornblower and Arthur Woolf who made the cylinders, and William McNaught (Glasgow) who devised a method of composing an existing engine. Beam engines were first used to pump water from the mines or into the canals, but could be used to pump water to supplement the flow of a hydraulic wheel feeding a mill.

Advantages of steam engine on windmills and water mills:

1. A steam engine (or external combustion engine) could be located anywhere because the water is heated in a separate boiler to produce steam. The steam engine, with its boiler, could be taken to any workplace. On the other hand, blowing wind or flowing water is not available everywhere to run windmills or water mills.

2. A steam engine (or an external combustion engine) can be used at any time because steam can be produced at any time. On the other hand, a windmill or watermill can be used only when wind and flowing water are available.

3. A steam engine (or external combustion engine) can be used to operate the trains to go from one place to another, but windmills and water mills can not be used for this purpose.

4. A steam engine (or external combustion engine) is much more powerful than a windmill or a watermill.

5. A steam engine (or an external combustion engine) can use virtually any combustible material for fuelwood, coal, oil, old furniture, ... anything that can be introduced into the combustion chamber. This makes it a very flexible source of energy, since anything in the vicinity can be used.

The main limitations or disadvantages of a steam engine or an external combustion engine are as follows:

1. A steam engine is huge and heavy. (That is, an external combustion engine is huge and heavy). Due to its large boiler and furnace a steam engine is huge, heavy and awkward. Since the boiler of a steam engine is very heavy, therefore, a steam engine can not be used to run small vehicles such as cars and buses.

[Image: main-qimg-756346b54ddd64827bf82c8eb1878a9d.webp]

2. A steam engine does not start immediately. (That is, an external combustion engine does not start immediately). Before a steam engine can start, we have to build a coal fire to get steam. This process takes a long time and therefore a steam engine can not be started at a warning time.

3. A steam engine is not safe to use. (That is, an external combustion engine is unsafe to use). A steam engine is not very safe to use because your boiler can explode due to excessive vapor pressure. To obtain maximum heat energy output, the steam must be maintained at high temperature and at a very high pressure in the boiler. If, by chance, the steam pressure increases too much, then the boiler can explode, leading to loss of life and property. Thus, the most dangerous part of a steam engine (or external combustion engine) is its boiler where steam is produced. In fact, in the early days of the steam engine, there were no good materials for the construction of boilers that could withstand high steam pressures. Even the construction techniques were not perfect. Therefore, many accidents were caused in the early days of the steam engine because of the boiler explosion due to the bad materials used in the manufacture of boilers and the defective construction of the boilers.

4. A steam engine has low efficiency. (That is, an external combustion engine has low efficiency). The thermal performance of a steam engine is around 20 percent, which means that a steam engine can convert only about 20 percent of the thermal energy at work. One of the reasons for the low efficiency of a steam engine is that the steam used in it is not at a very high temperature. Another reason for the low efficiency of a steam engine is the loss of heat due to the large exposed surface of the steam engine, particularly the boiler and the cylinder.
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