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Which of the following is the main disadvantage of a direct plate exchanger?

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+1 vote
in Fermentation Technology by (72.1k points)
Which of the following is the main disadvantage of a direct plate exchanger?

(a) Foaming occurs

(b) High capital cost

(c) If the media contains suspended solids, the plate may get blocked

(d) High maintenance

I got this question in unit test.

Question is from Continuous Sterilization in chapter Sterilization of Fermentation Technology

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Best answer
Right answer is (c) If the media contains suspended solids, the plate may get blocked

Best explanation: The main disadvantage of a direct plate exchanger is that if the media contains suspended solid particles, the plate might get blocked and the medium might not get sterilized. In this case, continuous steam injectors are used which does not get blocked due to suspended solids.

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