- Mass Transfer - Section 1
- Mass Transfer - Section 2
- Mass Transfer - Section 3
- Mass Transfer - Section 4
- Mass Transfer - Section 5
- Mass Transfer - Section 6
- Mass Transfer - Section 7
- Mass Transfer - Section 8
- Mass Transfer - Section 9
- Mass Transfer - Section 10
- Mass Transfer - Section 11
- Mass Transfer - Section 12
- Mass Transfer - Section 13
- Mass Transfer - Section 14


Mass Transfer - Engineering
Q1: Blowdown in a cooling towerA means discarding a small fraction of circulating water to prevent and limit the concentration of salt and impurities.
B increases the scale forming tendencies of water.
C is undesirable.
D all (a), (b) & (c).
ANS:B - increases the scale forming tendencies of water. When water is heated or evaporated, dissolved minerals and salts become more concentrated. If the concentration of these minerals and salts exceeds their solubility limits, they can precipitate out of solution and form solid deposits on surfaces. This process is known as scaling. Blowdown in a cooling tower helps control the concentration of dissolved minerals and salts in the circulating water. If blowdown is insufficient and the concentration of these substances becomes too high, it can actually increase the likelihood of scaling. Here's how:
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