How Do Aluminum Radiators Release Heat From Liquid Into Air?
Introduction: An aluminum radiator releases heat in three linked stages — liquid absorbs it, aluminum spreads it, and fans push it into the air. Anyone who has rested a hand on a running external radiator knows the outside feels warm rather than hot, and that is exactly what it is supposed to do. The radiator is not a heat source; it is the last stop on a journey that begins at a processor, a power module, or a graphics card. Following that journey makes it much easier to understand why an external loop behaves the way it does, why fan settings change temperatures, and why a thicker fin stack can sometimes move less heat than a thinner one. This piece follows the heat path from a warm component surface, through the liquid, into aluminum, and out into moving air. Why Liquid Can Carry Heat Away From Components Faster Than Air Alone Why do liquid cooling loops exist at all when a fan and a heatsink are simpler, cheaper, and easier to install? The answer comes down to how much heat a mov...