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Physics, 23.11.2019 05:31 biancabahena04

Asingle-pass, cross-flow heat exchanger uses hot exhaust gases (mixed) to heat water (unmixed) from 30 to 80c at a rate of 3 kg/s. the exhaust gases, having thermophysical properties similar to air, enter and exit the exchanger at 225 and 100c, respectively. if the overall heat transfer coefficient is 200 w/m2 k, estimate the required surface area.

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