Active cooling is a heat-reducing mechanism that is typically implemented in electronic devices and indoor buildings to ensure proper heat transfer and circulation from within.
It is commonly implemented in systems that are unable to maintain their temperature through passive means.
They need to be well-maintained and sustainable in order for them to perform its necessary tasks or the possibility of damages within objects could occur.
Various applications of commercial active cooling systems include indoor air conditioners, computer fans, and heat pumps.
With this, engineers have to establish the heat balance in order to ensure proper ventilation throughout the structure.
There are three active cooling systems commonly used in the residential sectors: A fan is three to four blades rotated by an electrical motor at a constant speed.
Throughout the rotation, airflow is produced and having the surrounding being cooled through the process of forced convection heat transfer.
Because of its relatively low price, it is the most frequently used out of the three active cooling systems in the residential sector.
The vapor then goes through a condenser and converts into a liquid form, dispelling more heat in the process.
The process for the absorption heat pump works similarly to the compression variant with the main contrast being the usage of an absorber instead of a compressor.
[6] It can be divided by: This method evaporates the water which would then travel directly into the air stream, producing a small form of humidity.
It usually requires a decent amount of water consumption in order to properly lower the temperature of the surrounding area.
Compared to direct evaporative coolers, it requires much less water consumption to operate and lowering temperature.
The thermoelectric generator, or TEG, is a power source that has been recently experimented with to test its viability in maintaining active cooling.
Throughout the research, the voltage, the power, and the temperature in both of the Raspberry PIs were observed and recorded.
The power produced by the TEG was also analyzed to measure the possibility of the fan having self-sustainable capabilities.
Based on the result, the thermoelectric generator active cooling has been shown to effectively decrease and maintain temperatures that is comparable to commercial usage of passive coolers.
[7][8][9] Near Immersion Active Cooling, or NIAC, is a thermal management technique that has been recently researched in an effort to reduce the amount of heat accumulation generated by Wire + Arc Additive Manufacturing, or WAAM (a metal 3-D printing technology).
NIAC utilizes a cooling liquid that surrounds the WAAM within a work tank and increases the water level when metal is being deposited.
The direct contact with the liquid allows for quick withdrawal of heat from the WAAM, decreasing temperature by a significant amount.
[10] In a 2020 experiment, researchers wanted to discover the feasibility of using the NIAC and to test its cooling capabilities.
In technologies, it helps maintain proper thermal conditions, preventing the risk of damages or overheating of the core operation systems.
Engineers of the building would need to take in account that an increase in energy consumption would also play a factor in negatively affecting the global climate.