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A refrigeration system using phase change material (PCM) with six operating modes is proposed to reduce the cooling energy use of energy-demanding spaces such as data centers and telecommunication base stations. PCM is used to store the cold of outdoor air (OA) and/or that produced by vapor compression refrigeration (VCR) at night, and to release the stored energy for indoor cooling during the daytime...
Ventilation system with a latent heat thermal energy storage (LHTES) unit can be used to reduce building energy consumption, which stores the coldness of nighttime outdoor air in the LHTES unit and releases it to cool the fresh air during the daytime. The potential energy saving through the use of the system over a conventional ventilation system, however, has seldom been quantitatively evaluated...
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