Heat sinks are devices that use heat to transfer heat away from a particular device. An air-source heat pump is one such example. While it may not transfer heat to its enclosures directly, it can effectively lower the temperatures of some components of the enclosure by transferring heat to air circulating parts or even evaporator coils. A heat sink is also a passive heat exchanger that directly transfers the heat produced by a mechanical or an electronic device into a fluid medium, usually either air or a liquid cooling agent, where it’s dissipated off the device and into the environment.
The most common material used in heat sinks are aluminum, which are extremely effective in both cooling and heating systems, and has excellent thermal conductivity. But since aluminum is somewhat heavy, it tends to get extremely hot when it comes in contact with any liquid, so liquid cooling agents were put to use in its place, like polyethylene glycol or distilled water. Today, aluminum alloys are often used for cooling as well. One important note on aluminum is that very little metal gets incorporated in the alloy, which makes aluminum a poor choice for high performance cooling systems because all the metal gets incorporated into the structure. So instead of aluminum, you may want to opt for stainless steel heat sinks, which have excellent thermal conductivity and excellent resistance to corrosion.
One of the great things about heat sinks is that they save a lot of money. They don’t just keep your system cool – they also keep your utility bills down, because they help with reducing convection in your house. Convection is where heated air rises while colder air sinks to the floor, which is often a problem in houses with basements that aren’t vented properly. The problem with the floor-flow problem is that it causes heat leaks, so that the hotter air rises and the cooler air sinks, causing your utility bill to go up. Heat sinks prevent the rise of hot air from ceiling to floor, which means that your residence will stay much cooler, even when it’s a bit warmer outside.https://www.youtube.com/embed/qO6AuFc72AA