Question

Which exchanger is called as modified floating-head shell-and-tube exchanger?

(a) Pillow plate exchangers

(b) Plate fin exchangers

(c) Lamella plate heat exchangers

(d) Spiral plate heat exchangers

I have been asked this question in an internship interview.

Asked question is from Heat Transfer Applications in portion Heat Transfer Applications of Food Processing Unit Operations

Answer 1

The correct answer is (a) Pillow plate exchangers

The explanation: Lamella plate heat exchanger is called as modified floating-head shell-and-tube exchanger. One fluid flows inside the lamella whereas the other flows longitudinally in the spaces between them. There are no baffles on the shell side. The flow arrangement is generally counter flow.