make alist of limitations of a steam engine
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The limitation of a steam engine are given. below :
1. A steam engine is huge and heavy. (That is, An external combustion engine is huge and heavy). Due to its big boiler and furnace a steam engine is huge, heavy and clumsy. Since the boiler of a steam engine is very heavy, therefore, a steam engine cannot be used for running small vehicles like cars and buses.
2. A steam engine does not start at once. (That is, An external combustion engine does not start at once). Before a steam engine can start, we have to build a coal fire to get steam. This process takes a long time and hence a steam engine cannot be started at a moment’s notice.
3. A steam engine is unsafe to use. (That is, An external combustion engine is unsafe to use). A steam engine is not very safe to use because its boiler can burst due to excessive steam pressure. In order to get the maximum work from the heat energy, the steam has to be maintained at high temperature and a very high pressure in the boiler. If, by chance, the steam pressure increases too much, then the boiler can burst 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. Actually, in the early days of the steam engine, good materials were not available for the construction of boilers which could withstand high steam pressure. Even the construction techniques were not perfect. So, a lot of accidents were caused in the early days of the steam engine due to the bursting of boilers, because of poor materials used in making boilers and faulty construction of boilers.
4. A steam engine has low efficiency. (That is, An external combustion engine has low efficiency). The thermal efficiency of a steam engine is about 20 per cent which means that a steam engine can convert only about 20 per cent of the heat energy into 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 because of the large exposed surface area of the steam engine, particularly the boiler and the cylinder.
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1. A steam engine is huge and heavy. (That is, An external combustion engine is huge and heavy). Due to its big boiler and furnace a steam engine is huge, heavy and clumsy. Since the boiler of a steam engine is very heavy, therefore, a steam engine cannot be used for running small vehicles like cars and buses.
2. A steam engine does not start at once. (That is, An external combustion engine does not start at once). Before a steam engine can start, we have to build a coal fire to get steam. This process takes a long time and hence a steam engine cannot be started at a moment’s notice.
3. A steam engine is unsafe to use. (That is, An external combustion engine is unsafe to use). A steam engine is not very safe to use because its boiler can burst due to excessive steam pressure. In order to get the maximum work from the heat energy, the steam has to be maintained at high temperature and a very high pressure in the boiler. If, by chance, the steam pressure increases too much, then the boiler can burst 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. Actually, in the early days of the steam engine, good materials were not available for the construction of boilers which could withstand high steam pressure. Even the construction techniques were not perfect. So, a lot of accidents were caused in the early days of the steam engine due to the bursting of boilers, because of poor materials used in making boilers and faulty construction of boilers.
4. A steam engine has low efficiency. (That is, An external combustion engine has low efficiency). The thermal efficiency of a steam engine is about 20 per cent which means that a steam engine can convert only about 20 per cent of the heat energy into 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 because of the large exposed surface area of the steam engine, particularly the boiler and the cylinder.
Hope it helps please mark as branliest.
sirAhmed1:
this is for only 2 or 3 marks so plz write in short
can't you short out some of the points from my answer
ok thanks
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List of limitations of a stream engine:-
- A steam engine is huge and heavy.
- Steam engine has low efficiency.
- Steam engine does not start at once.
- Before a steam engine can start, one has to build a coal fire to get steam which takes a long time.
THIS WILL HELP YOU ☝️....
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