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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: 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

Research roundup: Insulated greenhouse with shutters; nano-media supercooling; multi-split air source heat pump

Ben Welter - Tuesday, March 24, 2015

The effect of nocturnal shutter on insulated greenhouse using a solar air heater with latent storage energy [Solar Energy]

Supercooling and cold energy storage characteristics of nano-media in ball-packed porous structures [AIP Advances]

Defrosting performances of a multi-split air source heat pump with phase change thermal storage [International Journal of Refrigeration]

Research roundup: Polymethyl methacrylate; Lattice Boltzmann simulation; geopolymer mortar; kaolin-based composite PCM

Ben Welter - Friday, March 20, 2015

Polymethyl methacrylate based phase change microencapsulation for solar energy storage with silicon nitride [Solar Energy]

Lattice Boltzmann simulation for solid–liquid phase change phenomenon of phase change material under constant heat flux [International Journal of Heat and Mass Transfer]

Experimental study of geopolymer mortar with incorporated PCM [Construction and Building Materials]

Fabrication and thermal characterization of kaolin-based composite phase change materials for latent heat storage in buildings [Energy and Buildings]

Research roundup: Lime-pozzolan plaster; ATES systems; PEG/diatomite PCMs; eutectic mixture with polystyrene shell

Ben Welter - Wednesday, March 18, 2015

Characterization of a lime-pozzolan plaster containing phase change material [Proceedings of the International Conference on Numerical Analysis and Applied Mathematics]

Temperature boundary conditions for ATES systems [Proceedings of the International Conference on Numerical Analysis and Applied Mathematics]

Enhanced thermal conductivity of PEG/diatomite shape-stabilized phase change materials with Ag nanoparticles for thermal energy storage [Journal of Materials Chemistry A]

Micro/nano encapsulated n-tetracosane and n-octadecane eutectic mixture with polystyrene shell for low-temperature latent heat thermal energy storage applications [Solar Energy]

Research roundup: Free-air cooling for telecom base stations; shape-stabilized TES materials; multifilament yarn; more

Ben Welter - Tuesday, March 17, 2015

Performance of a free-air cooling system for telecommunications base stations using phase change materials (PCMs): In-situ tests [Applied Energy]

Increased photovoltaic performance through temperature regulation by phase change materials: Materials comparison in different climates [Solar Energy]

Preparation, thermal properties and applications of shape-stabilized thermal energy storage materials [Renewable and Sustainable Energy Reviews]

Development of thermal stable multifilament yarn containing micro-encapsulated phase change materials [Fibers and Polymers]

Research roundup: Macroencapsulated TES concrete; PCMEs; zinc particles; wearable product materials research; more

Ben Welter - Monday, March 16, 2015

Development, Mechanical Properties and Numerical Simulation of Macroencapsulated Thermal Energy Storage Concrete [Energy and Buildings]

Review of Phase change emulsions (PCMEs) and their applications in HVAC systems [Energy and Buildings]

Use of encapsulated zinc particles in a eutectic chloride salt to enhance thermal energy storage capacity for concentrated solar power [Renewable Energy]

Enhanced comprehensive performance of polyethylene glycol based phase change material with hybrid graphene nanomaterials for thermal energy storage [Carbon]

Preparation and Characterization of Side-chain Liquid Crystal Polymer/paraffin Composites as Form-stable Phase Change Materials [Journal of Materials Chemistry A]

Heat transfer fluids for concentrating solar power systems – A review [Applied Energy]

Research on Expanded Graphite/Nitrate High-Temperature Composite Phase Change Materials [Applied Mechanics and Materials]

Testing a model for wearable product materials research [International Journal of Fashion Design, Technology and Education]

Research roundup: Encapsulated NaNO3; eutectic mixture with polystyrene shell; energy storage plants; more

Ben Welter - Friday, March 13, 2015

  • Experimental and computational study of thermal energy storage with encapsulated NaNO3 for high temperature applications [Solar Energy]

  • Micro/nano encapsulated n-tetracosane and n-octadecane eutectic mixture with polystyrene shell for low-temperature latent heat thermal energy storage applications [Solar Energy]

  • Controllable Thermal Rectification Realized in Binary Phase Change Composites [Scientific Reports]

  • Assessing the economics of large Energy Storage Plants with an optimisation methodology [Energy]