Thermosyphoning is a process of exchanging heat without a pump, commonly used in solar water heaters. It relies on convection and can be used for soil cooling and computer cooling.
Thermosyphoning, also known as thermosyphoning, is a process used to exchange heat from liquids without a pump. This eliminates costs and simplifies the heat transfer process. The most common ways of carrying out thermosyphoning are water and solar convection.
The thermosyphon process can be used commercially in solar water heaters. A radiator is a passive system, which means there are no moving mechanical parts. Instead, the system relies solely on energy from the sun to operate. The water is collected in a piece of equipment called a batch collector, which is mounted on the roof of a building. It is corner braced so that when water collects, it can drain away using gravity.
Cold water is denser than hot water, so the storage tank is mounted slightly above the batch collector. When the sun heats up the batch collector, hot water rises and flows into the storage tank. Cold water sinks to the bottom and flows into a cold water supply line. This water is used for general cold tap use.
The hot water moves to the storage tank, where it continues to be heated by the sun. This continuous rise and fall of the water based on the temperature creates convection and allows the radiator to operate. When hot water is needed, a tap is opened inside the building and hot water from the storage tank flows through the hot water supply line.
Thermosiphon water systems can be used for soil cooling. Soil cooling is needed in areas like Alaska where structures are built on permafrost. Permafrost is soil that remains at or below freezing point for long periods of time. The problem with building on permafrost is that it contains ice that can thaw if the temperature rises for even a short time. Intermittent thawing and refreezing of permafrost can cause a building’s foundation to weaken and crack.
Ground cooling can work with underground pipes filled with carbon dioxide or ammonia. When the liquid is heated by the surrounding permafrost, it turns into vapor. As the vapor evaporates, it condenses on the outside of the pipes and turns back into liquid. The cooled liquid flows into a collection tank and is reused.
Cooling your computer is necessary because the processor that runs your computer can reach temperatures above 160° Fahrenheit (71° Celsius). Although most computers have a fan, a radiator can often reduce the processor temperature more effectively. In a computer heater, the fan acts as a convection vehicle by circulating the water to heat up and convert to steam. Similar to the ground cooling system, as the vapor cools it is collected within the thermosiphon system and recycled.
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