engineering recuitment NMDC Junior Officer (Trainee) Mock Test 2024 Heat Transfer Heat Exchanger Heat Exchanger Analysis
The fouling factor in heat exchanger is defined as,
1
Rf = Udirty - Uclean
2
\({{{R}}_{{f}}} = \frac{1}{{{{{U}}_{{{dirty}}}}}} - \frac{1}{{{{{U}}_{{{clean}}}}}}\)
3
\(\frac{1}{{{{{R}}_{{f}}}}} = \frac{1}{{{{{U}}_{{{dirty}}}}}} - \frac{1}{{{{{U}}_{{{clean}}}}}}\)
4
\(\frac{1}{{{{{R}}_{{f}}}}} = {{{U}}_{{{dirty}}}} - {{{U}}_{{{clean}}}}\)