Department of Energy Engineering, University of Baghdad, Baghdad 10071, Iraq
About this institution
Publications Show all
Solidification enhancement of PCM in a triplex-tube thermal energy storage system with nanoparticles and fins
Published in Applied Energy
This study is on the application of nanoparticles and fins for improved phase change material (PCM) solidification in a heat exchanger. A major challenge in using PCMs is their poor thermal conductivities which consequently prolongs phase change processes giving rise to very slow charging/discharging rates. This seriously affects energy storage and...
Melting enhancement in triplex-tube latent heat energy storage system using nanoparticles-metal foam combination
Published in Applied Energy
Phase change material (PCM) energy storage systems have relatively low thermal conductivity values which greatly reduces the systems’ performance. In this study, a compound porous-foam/nanoparticles enhancement technique was used to significantly improve melting of a phase change material (PCM) in a triplex-tube heat exchanger applicable to liquid ...
Melting enhancement in triplex-tube latent thermal energy storage system using nanoparticles-fins combination
Published in International Journal of Heat and Mass Transfer
Latent thermal energy storage based on Phase Change materials (PCMs) offers a promising solution for correcting the problem of availability of intermittent energy from renewable sources like solar, wind, etc. PCMs have the potential to store large amounts of energy in relatively small volumes and within nearly isothermal processes. However, a major...
Solidification enhancement in a triplex-tube latent heat energy storage system using nanoparticles-metal foam combinatio...
Published in Energy
Thermal storage systems utilizing Phase Change Materials (PCMs) are known to exhibit slow thermal response. This is mainly due to the relatively low thermal conductivity of most PCMs used in the systems. Thus packing the PCMs in better performing containment vessels and/or employing heat transfer enhancement additives is required for improved perfo...
Melting of PCM with nanoparticles in a triplex-tube thermal energy storage system
Published in ASHRAE Transactions
Environmental concerns and limited energy supply today make energy storage very important, especially in solar energy utilization. The latent heat storage method has the advantage of storing a large amount of energy in a relatively small volume. Achieving thermal energy storage with latent heat application using phase-change materials (PCMs) involv...
Solidification of a PCM with nanoparticles in triplex-tube thermal energy storage system
Published in Applied Thermal Engineering
Effects of incorporating alumina nanoparticles on solidification of a phase-change material (PCM) in triplex-tube thermal energy storage (TES) system were numerically investigated in this study. A time-dependent, two-dimensional simulation of the entire solidification process was carried out for different nanoparticle loadings under constant chargi...
Multiple-segment metal foam application in the shell-and-tube PCM thermal energy storage system
Published in Journal of Energy Storage
This study describes a new approach for heat-transfer enhancement in PCM-based shell-and-tube thermal energy storage systems by employing multiple-segment or cascaded metal foam. The principle is based on the fact that temperature gradient across the PCM during the phase change reduces significantly in the heat flow direction thus affecting the hea...
