Question

______ chillers are also called as centrifugal chiller type refrigeration systems.

(a) Low-pressure

(b) Low-temperature

(c) Low-velocity

(d) High-pressure

This question was posed to me in an international level competition.

My doubt is from Heat Transfer Applications topic in portion Heat Transfer Applications of Food Processing Unit Operations

Answer 1

Right answer is (a) Low-pressure

Easy explanation: Low-pressure chillers are also called as centrifugal chiller type refrigeration systems. It works under vacuum in the evaporator section of the system. If there is any leaks in the low pressure portions of the system, it will draw in the atmospheric air and moisture from the surroundings.