A grid-tube evaporator is considered an evaporator. true or false?

• A. True
• B. False
• C. Not sure
• D. Depends on model

Answer: (B)

In refrigeration, the term evaporator refers to the part where the refrigerant absorbs heat and changes from liquid to vapor at low pressure. A grid-tube arrangement is just a tube layout within a heat exchanger and does not by itself define the function of an evaporator. If that grid-tube setup doesn’t actually produce the liquid-to-vapor phase change inside it, it isn’t performing the evaporator role. So, labeling a grid-tube device as an evaporator isn’t correct.