Tek-Temp Instruments wrote an article that was published in the November 2009 issue of Process Heating Magazine that offered “A Different Perspective” on temperature control systems. The article discussed when to consider a liquid-to-liquid heat exchanger system and shared the overall features and options that are available to these systems. For example if your answer would be yes to the question “is the tap of building cooling water source compromising the cooling performance of your process equipment due to its lack of cleanliness?” You should be considering a liquid-to-liquid heat exchanger.
The article states that “liquid-to-liquid heat exchangers offer an option to air-cooled chillers for some process cooling applications.” It continues to cover specific aspects like heat removal, energy efficiency, heating, backflow prevention, and coolant filters. The author states that “liquid-to-liquid heat exchangers are particularly useful in situations where the cooling water source temperature is too low or where the pressure and cleanliness of the water may cause damage to the equipment or compromise performance.”