Comparing steam turbine and steam engine, which is better?
The various advantages of steam turbine are as follows :
(i) It requires less space.
(ii) Absence of various links such as piston, piston rod, cross head etc. make the mechanism simple. It is quiet and smooth in operation,
(iii) Its over-load capacity is large.
(iv) It can be designed for much greater capacities as compared to steam engine. Steam turbines can be built in sizes ranging from a few horse power to over 200,000 horse power in single units.
(v) The internal lubrication is not required in steam turbine. This reduces to the cost of lubrication.
(vi) In steam turbine the steam consumption does not increase with increase in years of service.
(vii) In steam turbine power is generated at uniform rate, therefore, flywheel is not needed.
(viii) It can be designed for much higher speed and greater range of speed.
(ix) The thermodynamic efficiency of steam turbine is higher.
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