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What are the energy efficiency implications of using air conditioning in various settings?

Condenser (heat transfer)

Boosting (machine learning)

Constant air volume

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The energy efficiency implications of air conditioning systems vary based on different settings and technologies. Integrating phase change materials (PCM) with AC units can enhance performance and reduce power consumption significantly . Additionally, utilizing indirect adiabatic cooling in central air conditioners instead of direct cooling can lead to a substantial reduction in cold and electricity consumption, up to 65%, along with environmental benefits like lower carbon dioxide emissions . Alternative air distribution methods, such as supplying air from floor-based diffusers and extracting it through the ceiling, can create energy savings by conditioning only the occupied space, reducing the need for uniform air mixing throughout the room . Moreover, employing ground source heat pumps in air conditioning systems can significantly cut down energy consumption when used year-round, albeit with stricter thermal insulation requirements .

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Open access•Journal Article•DOI Analysis of the energy, economic and environmental efficiency of air conditioning systems with direct and indirect evaporative cooling E. Dmytrochenkova 10 Apr 2021	Using indirect evaporative cooling in air conditioning systems can reduce cold and electricity consumption by 65%, enhancing energy efficiency significantly in different settings.
Patent Energy efficient air conditioner Al-Deraiei Waleed Kh A Kh 13 Jun 2019	Using a portion of cooled indoor air to cool the condenser in an evaporation-compression-condensation cycle enhances energy efficiency in air conditioning, especially in ventilated areas, reducing overall energy consumption.
Journal Article•DOI Boosting the air conditioning unit performance using phase change material: Impact of system configuration Muhamad Izzuddin Ismail, W. K. Zahra, Shinichi Ookawara, Hamdy Hassan - Show less +3 more 01 Dec 2022-Journal of energy storage 7 Citations	Using phase change materials (PCM) in air conditioning systems can save up to 25% of power consumption, with cylindrical configurations being optimal for nightly charging, enhancing energy efficiency significantly.
Open access•Journal Article•DOI Energy efficiency of using a con-ditioning system based on a ground heat pump 12 May 2022	The energy efficiency of air conditioning using a ground heat pump system is influenced by climatic conditions, offering significant energy savings when cold and hot periods are balanced.
Open access Energy-efficient Technology of Air Distribution in Air Conditioning V N Bartaria, S P S Rajput - Show less +1 more 01 Jan 2013 2 Citations	Floor-based air distribution with ceiling return can create two-layered stratification, saving energy by conditioning only the occupied space, enhancing energy efficiency in air conditioning systems.

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