TY - GEN
T1 - Design of compressed graphite/PCM thermal batteries
AU - Mallow, Anne
AU - Graham, Samuel
AU - Gluesenkamp, Kyle
AU - Abdelaziz, Omar
N1 - Publisher Copyright:
© 2016, Dalian University of Technology. All rights reserved.
PY - 2016
Y1 - 2016
N2 - The thermal charging performance of compressed expanded natural graphite foam saturated with a phase change material is modeled under constant heat flux and constant temperature conditions. This phase change moving boundary problem is solved with the effective heat capacity method. The graphite composite properties are modeled using empirically determined volume-averaged density, specific heat, latent heat, and thermal conductivity measurements for each composite. After being experimentally validated for constant temperature boundary conditions of 60°C and constant flux boundary conditions of 0.39 W/cm2, 1.22 W/cm2, and 1.55 W/cm2 for graphite bulk densities of 23, 50, 100, 143 kg/m3, the use of this model is demonstrated in the design of a thermal battery. The objectives of minimizing size and refrigerant charge while maximizing heat capacity and thermal charging rate are studied as a function of the parameters graphite bulk density, thermal battery dimensions, and refrigerant tube configuration.
AB - The thermal charging performance of compressed expanded natural graphite foam saturated with a phase change material is modeled under constant heat flux and constant temperature conditions. This phase change moving boundary problem is solved with the effective heat capacity method. The graphite composite properties are modeled using empirically determined volume-averaged density, specific heat, latent heat, and thermal conductivity measurements for each composite. After being experimentally validated for constant temperature boundary conditions of 60°C and constant flux boundary conditions of 0.39 W/cm2, 1.22 W/cm2, and 1.55 W/cm2 for graphite bulk densities of 23, 50, 100, 143 kg/m3, the use of this model is demonstrated in the design of a thermal battery. The objectives of minimizing size and refrigerant charge while maximizing heat capacity and thermal charging rate are studied as a function of the parameters graphite bulk density, thermal battery dimensions, and refrigerant tube configuration.
KW - Compressed expanded natural graphite
KW - Numerical methods
KW - Phase change material
KW - Thermal energy storage
UR - http://www.scopus.com/inward/record.url?scp=85053690231&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85053690231
SN - 9788874314591
SN - 9788874318285
T3 - International Conference on Computational Methods for Thermal Problems
BT - International Conference on Computational Methods for Thermal Problems
A2 - Massarotti, Nicola
A2 - Nithiarasu, Perumal
A2 - Joshi, Yogendra
PB - Dalian University of Technology
T2 - 4th International Conference on Computational Methods for Thermal Problems, THERMACOMP 2016
Y2 - 6 July 2016 through 8 July 2016
ER -