Many different types of heat transfer fluids can be used in process heating applications. How do engineers identify the type of heat transfer fluid that is the best for their system?
Design parameters such as heat transfer efficiency, pumping power and operational life must be taken into account. Each will factor into the performance of the fluid and operating expenses. Also, safety parameters such as pressure buildup, flashpoint, flammability and toxicity cannot be overlooked. With these concerns in mind, an engineer can pick from a selection of water-based heat transfer fluids, oil-based heat transfer fluids and even high temperature molten salts.