![]() ![]() A standby heat exchanger adds additional cost but allows for continuous operation of the cooled load while cleaning is accomplished. This can be offset by installing a standby intermediate heat exchanger that is put into service while the primary intermediate heat exchanger is cleaned. Weaknesses of the liquid-to-liquid cooling system include periodic downtime of the cooling system for cleaning. Maintenance is relatively simple demanding only a periodic inspection, lubrication, and cleaning of the heat exchanger as necessary. The system is inexpensive to operate with only the closed loop pump using any additional energy. The components can be installed inside or outside. The strength of a liquid-to-liquid cooling system is that it is relatively inexpensive to purchase and install. In the well water example above if the well water is available at 55 F the liquid to liquid cooling system is capable of supplying 60 F coolant to the load. Coolant temperatures of 5 degrees above the plant cooling “water” are possible with a liquid-to-liquid type system. The most common intermediate heat exchangers are either plate and frame or shell and tube type. Fouling of the intermediate heat exchanger will likely happen on the well-water side, however, if the intermediate heat exchanger is selected properly it can be taken apart easily and cleaned. The heat is exchanged through the intermediate heat exchanger without fouling the heat exchanger/s. It uses the well water on one side of an intermediate heat exchanger and a coolant such as glycol and water on the other side of the intermediate heat exchanger in a closed loop to cool the compressor. For example: you have well water available but you do not want to put the well water through your new compressor because the water quality is very poor (lots of dissolved solids like iron and calcium etc.), and you have had trouble with the well water fouling your heat exchanger/s in the past.Ī liquid-to-liquid cooling system is an ideal fit for this situation. In this type of system your plant has an abundance of some type of cooling liquid already available but you do not want to provide this coolant to the compressor. The simplest of these systems is a liquid-to-liquid cooling system. Closed-loop dry system with trim cooling.There are six basic types of liquid cooling systems: This article was written to identify the different types of cooling systems and identify their strengths and weaknesses so that you can make an informed choice based on your needs. Each one has its strengths and weaknesses. There are six basic types of cooling systems that you can choose from to meet the cooling needs of your load. ![]()
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