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The award-winning Phase Change Matters blog tracks the latest news and research on phase change materials and thermal energy storage. E-mail tips and comments to Ben Welter, communications director at Entropy Solutions. Follow the blog on Twitter at @PureTemp. Subscribe to the weekly PCM newsletter. Or join the discussion on LinkedIn.

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Research roundup: PCMs with expanded graphite; life cycle assessment of PCMs; DHFMA method; fluidized bed of PCMs

Ben Welter - Tuesday, April 14, 2015

PCMs Heat Transfer Performance Enhancement with Expanded Graphite and its Thermal Stability [Procedia Engineering]

Life cycle assessment of two biologically produced phase change materials and their related products [International Journal of Life Cycle Assessment]

DHFMA Method for Dynamic Thermal Property Measurement of PCM-integrated Building Materials [Current Sustainable/Renewable Energy Reports]

Modeling and Experiments of Energy Storage in a Fluidized Bed with PCM [Procedia Engineering]

Research roundup: Portable climate control; diatomite as PCM carrier material; translucent passive solar wall

Ben Welter - Thursday, April 09, 2015

Thermal battery for portable climate control [Applied Energy]

Diatomite: A promising natural candidate as carrier material for low, middle and high temperature phase change material [Energy Conservation and Management]

Full scale experimentation on a new translucent passive solar wall combining silica aerogels and phase change materials [Solar Energy]

Research roundup: PCM in transparent building elements; biomass and pit TES; hybrid thermal management for batteries

Ben Welter - Wednesday, April 08, 2015

Phase change materials (PCMs) integrated into transparent building elements: a review [Materials for Renewable and Sustainable Energy]

A hybrid optimization model of biomass trigeneration system combined with pit thermal energy storage [Energy Conversion and Management]

A hybrid thermal management system for lithium ion batteries combining phase change materials with forced-air cooling [Applied Energy]

Research roundup: PCM in free-moving ceiling; phase interface effects; window shutter; solar chimney; more

Ben Welter - Tuesday, April 07, 2015

Melting processes of phase change materials in an enclosure with a free-moving ceiling: An experimental and numerical study [International Journal of Heat and Mass Transfer]

Phase interface effects in the total enthalpy-based lattice Boltzmann model for solid–liquid phase change [Journal of Computational Physics]

Electroless plating of copper layer on surfaces of urea–formaldehyde microcapsule particles containing paraffin for low infrared emissivity [Particuology]

Constructal design of phase change material enclosures used for cooling electronic devices [Applied Thermal Engineering]

Numerical study of PCM solidification in a finned tube thermal storage including natural convection [Applied Thermal Engineering]

Effect of water based AL2O3 Nanoparticle PCM on cool storage performance [Applied Thermal Engineering]

Optimization of Heat Exchange in a Heat Accumulator with Latent Heat Storage [Procedia Technology]

Performance of a window shutter with phase change material under summer Mediterranean climate conditions [Applied Thermal Engineering]

Review on shell materials used in the encapsulation of phase change materials for high temperature thermal energy storage [Renewable and Sustainable Energy Reviews]

An experimental study on the thermal performance of a solar chimney without and with PCM [Renewable Energy]

Research roundup: Stability testing of high-temperature PCMs; n-octadecane in spherical capsule; modeling peak load reduction; more

Ben Welter - Friday, April 03, 2015

Determination of thermo-physical properties and stability testing of high-temperature phase change materials for CSP applications [Solar Energy Materials and Solar Cells]

The experimental exploration of sodium chloride solution on thermal behavior of phase change materials [Solar Energy Materials and Solar Cells]

Fixed-grid numerical modeling of melting and solidification using variable thermo-physical properties – Application to the melting of n-Octadecane inside a spherical capsule [International Journal of Heat and Mass Transfer]

Experimental observations on the heat transfer enhancement caused by natural convection during melting of solid–liquid phase change materials (PCMs) [Applied Energy]

Modeling Peak Load Reduction and Energy Consumption Enabled by an Integrated Thermal Energy and Water Storage System for Residential Air Conditioning Systems in Austin, Texas [Energy and Buildings]

Research roundup: Solid-liquid phase change region; latent heat and cold storage; energy requirements vs. comfort levels

Ben Welter - Wednesday, April 01, 2015

Thermal properties of n-pentadecane, n-heptadecane and n-nonadecane in the solid/liquid phase change region [International Journal of Thermal Sciences]

Parametrical analysis of latent heat and cold storage for heating and cooling of rooms  [Applied Thermal Engineering]

Phase change materials for photovoltaic thermal management [Renewable and Sustainable Energy Reviews]

Analysis of energy requirements versus comfort levels for the integration of phase change materials in buildings [Journal of Building Engineering]

Research roundup: PCM in building walls; chitosan-gelatin microcapsules; STES analysis; silicon carbide powder

Ben Welter - Tuesday, March 31, 2015

Thermal Energy Storage for Building: Thermodynamic and Heat Transfer
Analysis for Integration of PCMs in Building Walls
[ American Society for Engineering Education]

The Preparation and Characterization of Chitosan–Gelatin Microcapsules and Microcomposites with Fatty Acids as Thermal Energy Storage Materials [Energy Technology]

Net energy analysis of a solar combi system with Seasonal Thermal Energy Store [Applied Energy]

Preparation of Microcapsules Containing Phase Change Material and Silicon Carbide Powder with Interfacial Polycondensation Reaction Method [Materials Sciences and Applications]

Research roundup: Nanomaterial composite PCMs; close-contact melting; mush region effect; underfloor heating; more

Ben Welter - Monday, March 30, 2015

Preparation and thermal properties characterization of carbonate salt/carbon nanomaterial composite phase change material [Energy Conversion and Management]

Close-contact melting in a horizontal cylindrical enclosure with longitudinal plate fins: Demonstration, modeling and application to thermal storage [International Journal of Heat and Mass Transfer]

A similarity solution to unidirectional solidification of nano-enhanced phase change materials (NePCM) considering the mushy region effect [International Journal of Heat and Mass Transfer]

Application of PCM underfloor heating in combination with PCM wallboards for space heating using price based control system [Applied Energy]

Thermal conductivities and characteristics of ternary eutectic chloride/expanded graphite thermal energy storage composites [Applied Energy]

Connect with PCM experts and industry leaders on LinkedIn

Ben Welter - Wednesday, March 25, 2015

Phase Change Matters logoNew on LinkedIn: A group devoted to the discussion of phase change material and thermal energy storage, a place for PCM and TES experts and industry leaders from around the world to gather and share ideas. It's called Phase Change Matters, and it's intended as a highly interactive complement to the blog and newsletter of the same name.

The first topic up for discussion: PCM and off-peak cooling systems:

TES pioneers like CALMAC and Ice Energy have been installing ice-based energy storage systems for years. And district cooling has been around for decades. What are the main barriers to wider adoption of phase change material in these types of thermal energy storage systems? Complexity? Education? Cost?

You are invited to join the discussion. Here's a link to the group:

https://www.linkedin.com/groups?home=&gid=6953237