TITLE:
Thermal Performance of MEMS-Based Heat Exchanger with Micro-Encapsulated PCM Slurry
AUTHORS:
Samira Mehravar, Samad Sabbaghi
KEYWORDS:
MEMS, Microchannel, MEPCM-Slurry, Latent Heat, Simulate
JOURNAL NAME:
Journal of Power and Energy Engineering,
Vol.2 No.9,
September
15,
2014
ABSTRACT: 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.