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Answer Posted / karthick
while the gas is allowed to expand inside the turbine its
temperatue decreases.so in its lower stage,erosion of
blades take place.so inorder to avoid that reheating is
done.when the gas is being expanded inside the turbine,it
is taken off from the turbine,reheat it and then allowed
inside the turbine to expand.this is known as
reheating.reheating reduces the thermal efficiency
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