Process Equipment and Plant Design Cooling water fouling factors vary in the range of 0.001 to 0.003 (BTU/hr.ft² . °F)⁻¹ (W/m².°K)⁻¹ (kcal/hr.m² .°C)⁻¹ (kcal/hr. m. °C)⁻¹ (BTU/hr.ft² . °F)⁻¹ (W/m².°K)⁻¹ (kcal/hr.m² .°C)⁻¹ (kcal/hr. m. °C)⁻¹ ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a double pipe (concentric) heat exchanger, the hydraulic radius for heat transfer (for a fluid flowing through the annulus) would be D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Less than that for fluid flow Same as that for fluid flow More than that for fluid flow D₂ - D₁ (D₁ and D₂ are I.D. of inner and outer pipes respectively) Less than that for fluid flow Same as that for fluid flow More than that for fluid flow ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Wall thickness of schedule 40 pipe as compared to that of schedule 80 pipe is Less More Cither A or B; depends upon the I.D. of the pipe Same Less More Cither A or B; depends upon the I.D. of the pipe Same ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design Minimum baffle spacing recommended in a shell and tube heat exchanger is equal to 40% of the I.D. of the shell 25 cms I.D. of the shell 5 cms 40% of the I.D. of the shell 25 cms I.D. of the shell 5 cms ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In condenser, the cooling water is passed in the tube side in a pass arrangement, because It makes condenser compact More thinner tubes can be used Pressure drop is reduced It reduces heat transfer area It makes condenser compact More thinner tubes can be used Pressure drop is reduced It reduces heat transfer area ANSWER DOWNLOAD EXAMIANS APP
Process Equipment and Plant Design In a shell and tube heat exchanger having square pitch, the shell side equivalent diameter is given by (where, P = pitch, d = outside diameter of the tube) 4(P² - πd²/4)/πd Πd/4P² (P² - πd²/4)/πd 4P²/πd 4(P² - πd²/4)/πd Πd/4P² (P² - πd²/4)/πd 4P²/πd ANSWER DOWNLOAD EXAMIANS APP
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