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Why LMTD is calculated in Heat -Exchanger problems..Why dont
we take average temperature??
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Answer Posted / awkash
Because temperature change in heat exchanger is not linear
in nature so we can not take airthmatic mean here,
physically you can think in the manner like if we inlet
temp. of a pipe is 80 and outlet temp. is 40 then u cannot
say that temp in middle will be 60.
thats why for accurte measurement we take lmtd.
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