HEAT TRANSFER

None of these

Conversion factor for individual film heat transfer co-efficient to overall heat transfer co-efficient

Non-dimensional factor

Factor of safety

All of these

Gases under high pressure are routed through the tube side, because high pressure gases are corrosive in nature

Presence of a non-condensible gas decreases the condensing film co-efficient

Gases to be heated/cooled is normally routed through the shell side, because the corrosion caused by the cooling water or steam condensate remain localised to the tubes

Watt/m.°K

Watt/m². °K

Watt/m². °K

Watt/m4. °K

Remains same

Increases

Decreases

First increases upto a certain temperature and then becomes constant

Water

Air

Dowtherm

Molten sodium