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Latent heat thermal energy storage
technique has demonstrate to be a better engineering option mainly due to its
benefit of supplying higher energy storage density in a smaller temperature difference
between retrieval and storage. For this purpose, a micro electro-mechanical
system, MEMS-based heat exchanger with microencapsulated PCM (MEPCM) slurry as
cold fluid, has been simulated three dimensionally. This work investigates the
influence of using MEPCM-slurry on the temperature of the cold and hot fluids.
The MEPCM and water properties have been considered temperature dependent.
MEPCM-slurry is used with different volume fractions. The result shows that
using MEPCM with 25% volume fraction leads to the improvement in fluids
temperatures, that is, for hot fluid the rate of temperature reduction
increases up to 23.5% and for cold fluid the rate of temperature rise decreases
to 9%, compared to using only water in the MEMS.