When industries first began relying on heat exchangers for their electrical thermal management needs, they quickly experienced the benefits of cleaner and more efficient cooling technology. However, there are situations where the surrounding air is too hot for an ambient heat exchanger to work effectively. In the past, this forced companies to continue relying on more expensive air conditioning systems. With Noren’s below-ambient heat exchangers, companies operating in hot climates can still take advantage of the energy-efficient, eco-friendly benefits of heat exchanger technology.

Ambient vs. Below-Ambient Cooling

Ambient heat exchangers function exactly as their name suggests: they remove the waste heat generated by electronics so that the air inside an electrical enclosure does not rise above the ambient temperature outside. This prevents heat pockets from forming and damaging sensitive equipment. For most applications in most climates, ambient cooling is a highly effective way to manage heat without the need to artificially chill the air.

However, there are times when that chilling effect is exactly what’s required. Every piece of electrical equipment has a maximum operating temperature, the point at which it can no longer perform properly and risks overheating. If the ambient air temperature is already higher than this rating, an ambient heat exchanger alone will not suffice. In these cases, below-ambient heat exchangers provide the solution, lowering internal enclosure temperatures by using water in a closed-loop system.

In air-to-water heat exchangers, the coolant fluid absorbs waste heat from the equipment, is cooled externally, and then recirculates in a closed loop to continuously remove heat from sensitive circuits. Since the enclosure temperature is controlled by the coolant temperature, companies gain greater precision and control over thermal management.

Cooling Solutions to Meet Every Need

Choosing between ambient and below-ambient heat exchangers requires a thorough understanding of a system’s specific thermal management requirements. That’s why we provide comprehensive system analyses to ensure we design the right solution every time.

To learn more, contact Noren Thermal, Inc. at 512 595 5700. Located in Taylor, Texas, Noren proudly manufactures all of our products in the United States and delivers nationwide.

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