Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface)

Fouling factor for a heat exchanger is given by (where, U₁ = heat tr

1.	Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface)
A.	₁ - U₂
B.	/U₁ - 1/U₂
C.	/U₂ - 1/U₁
D.	₂ - U₁
Answer» C. /U₂ - 1/U₁

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Fouling factor for a heat exchanger is given by (where, U₁ = heat transfer co-efficient of dirty surface U₂ = heat transfer co-efficient of clean surface)

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