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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: Passive cooling in buildings; honeycomb carbon fibers; leak-free aggregates; more

Ben Welter - Monday, October 14, 2019

From Applied Energy:

Passive cooling through phase change materials in buildings. A critical study of implementation alternatives

From Applied Thermal Engineering:

Honeycomb carbon fibers strengthened composite phase change materials for superior thermal energy storage

From e-Polymers:

Fabrication and characterization of conductive microcapsule containing phase change material

From Construction and Building Materials:

Preparation and characterization of nano-SiO2/paraffin/PE wax composite shell microcapsules containing TDI for self-healing of cementitious materials
Development of leak-free phase change material aggregates
Behavior of cementitious mortars with direct incorporation of non-encapsulated phase change material after severe temperature exposure

From Advanced Functional Materials:

Engineering the Thermal Conductivity of Functional Phase‐Change Materials for Heat Energy Conversion, Storage, and Utilization

From Journal of Energy Storage:

A numerical investigation of the effects of metal foam characteristics and heating/cooling conditions on the phase change kinetic of phase change materials embedded in metal foam
Applications of combined/hybrid use of heat pipe and phase change materials in energy storage and cooling systems: A recent review
Innovative composite sorbent for thermal energy storage based on a SrBr2·6H2O filled silicone composite foam

From ACS Applied Nano Materials:

Concentrated Ag Nanoparticles in Dodecane as Phase Change Materials for Thermal Energy Storage

From Materials Research Express:

Preparation of 1-dodecanol microcapsules with cellulose nanofibers-modified melamine-formaldehyde resin as a potential phase change material

From IOP Conference Series: Earth and Environmental Science:

Optimisation of Parameters in Thermal Energy Storage System by Enhancing Heat Transfer in Phase Change Material

From International Journal of Heat and Mass Transfer:

Thermal transport properties at interface of fatty acid esters enhanced with carbon-based nanoadditives

From Journal of Solar Energy Engineering:

Using a Novel Phase Change Material-Based Cooling Tower for a Photovoltaic Module Cooling

From Solar Energy:

Experimental investigation on micro-scale phase change material based on sodium acetate trihydrate for thermal storage

From RSC Advances:

A novel forced separation method for the preparation of paraffin with excellent phase changes

From Energy Conversion and Management:

Experimental characterisation of a novel thermal energy storage based on open-cell copper foams immersed in organic phase change material

Research roundup: Mesoporous silica; nanoencapsulation of oleic acid PCM; flexible crosslinking; more

Ben Welter - Friday, September 20, 2019

From International Journal of Energy Research:

Facile functionalized mesoporous silica using biomimetic method as new matrix for preparation of shape‐stabilized phase‐change material with improved enthalpy
Binary mixtures of fatty alcohols and fatty acid esters as novel solid‐liquid phase change materials

From Journal of Applied Polymer Science:

Phase change material with flexible crosslinking for thermal energy storage

From Journal of Thermal Analysis and Calorimetry:

Nanoencapsulation of oleic acid phase change material with Ag2O nanoparticles-based urea formaldehyde shell for building thermal energy storage

From Renewable Energy:

Enhanced properties of diatomite-based composite phase change materials for thermal energy storage

From Energy:

Perspectives for short-term thermal energy storage using salt hydrates for building heating
Design and construction of mesoporous silica/n-eicosane phase-change nanocomposites for supercooling depression and heat transfer enhancement
Numerical investigations on performance of phase change material Trombe wall in building

From Energy and Buildings:

Potential of energy flexible buildings: evaluation of DSM strategies using building thermal mass
Numerical analysis in a full-scale thermal energy storage tank with dual PCM capsules

From Applied Thermal Engineering:

Experimental determination and fractal modeling of the effective thermal conductivity of autoclave aerated concrete (AAC) impregnated with paraffin for improved thermal storage performance
Preparation and characterization of new nano-particle mixed as thermal storage material
Numerical investigation on integrated thermal management for a lithium-ion battery module with a composite phase change material and liquid cooling

From Chemical Engineering Journal:

Fatty Amines/Graphene Sponge Form-Stable Phase Change Material Composites with Exceptionally High Loading Rates and Energy Density for Thermal Energy Storage

From MATEC Web of Conferences:

Thermal conductivity of aerated concrete (AC) composites containing micro-encapsulated phase change materials [pdf]
Overheating mitigation in buildings: a computational exploration of the potential of phase change materials [pdf]

From Solar Energy:

Experimental study on the thermal performance of capric acid-myristyl alcohol/expanded perlite composite phase change materials for thermal energy storage

From Solar Energy Materials and Solar Cells:

Graphitization as efficient inhibitor of the carbon steel corrosion by molten binary nitrate salt for thermal energy storage at concentrated solar power
A strategy for designing microencapsulated composite phase change thermal storage materials with tunable melting temperature

From Institute of Electronics and Information Engineers 2019 Summer Conference:

Thermal Management System in Electric vehicle Battery Pack Using Phase Change Material

From Materials Chemistry and Physics:

Preparation and thermal properties of n-eicosane/nano-SiO2/expanded graphite composite phase-change material for thermal energy storage

From Sustainable Cities and Society:

Simulative optimization on energy saving performance of phase change panels with different phase transition temperatures

From Thermochimica Acta:

The stability and thermophysical properties of a thermal fluid containing surface-functionalized nanoencapsulated PCM

From International Journal of Heat and Mass Transfer:

Functionalized mesoporous silica as matrix for shape-stabilized phase change materials

From Applied Energy:

Synthesis and characterization of microencapsulated sodium sulfate decahydrate as phase change energy storage materials

From Energy Conversion and Management:

Prototype latent heat storage system with aluminum-silicon as a phase change material and a Stirling engine for electricity generation

From Journal of Solar Energy Engineering:

Experimental Investigation and Numerical Modeling of Room Temperature Control in Buildings by the Implementation of Phase Change Material in the Roof
Suitability Assessment and Experimental Characterization of Phase Change Materials for Energy Conservation in Indian Buildings

Research roundup: Corrosion effect of Micronal PCMs; photovoltaic-thermal system optimization; diatomite-based composite; more

Ben Welter - Monday, September 09, 2019

From Renewable Energy and Sustainable Buildings:

Study of Corrosion Effect of Micronal® Phase Change Materials (PCM) with Different Metal Samples
Use of Phase Change Materials for Solar Systems Applications
Performance Optimization of Concentrated Photovoltaic-Thermal (CPV-T) System Employing Phase Change Material (PCM) in Hot Climate

From Asia International Symposium on Mechatronics:

Investigation for a Phase Change Immersion Cooling System

From Energy Conversion and Management:

Experimental study of active phase change cooling technique based on porous media for photovoltaic thermal management and efficiency enhancement

From Renewable Energy:

Enhanced properties of diatomite-based composite phase change materials for thermal energy storage
Hybrid thermal energy storage with phase change materials for solar domestic hot water applications: Direct versus indirect heat exchange systems

From Journal of Applied Polymer Science:

Surface modification of MWCNT and its influence on properties of paraffin/MWCNT nanocomposites as phase change material

From Energy and Buildings:

Energy and emissions analysis of ice thermal energy storage in the western US
Thermal energy storage characterization of cementitious composites made with Recycled Brick Aggregates containing PCM

From Solar Energy:

Innovative passive heat-storage walls improve thermal performance and energy efficiency in Chinese solar greenhouses for non-arable lands

From Construction and Building Materials:

Development of structural thermal energy storage concrete using paraffin intruded lightweight aggregate with nano-refined modified encapsulation paste layer

From Applied Energy:

A comprehensive review on positive cold energy storage technologies and applications in air conditioning with phase change materials

From International Journal of Energy Research:

Preparation and characterization of nano‐enhanced myristic acid using metal oxide nanoparticles for thermal energy storage
Performance comparison of different combined heat and compressed air energy storage systems integrated with organic Rankine cycle

From xPRESS Polymer Letters:

Editorial corner – a personal view / Thermal management with polymer composites

From International Symposium on Asphalt Pavement & Environment:

Impregnation of Lightweight Aggregate Particles with Phase Change Material for Its Use in Asphalt Mixtures

From Journal of Sol-Gel Science and Technology:

Development of new inorganic shape stabilized phase change materials with LiNO3 and LiCl salts by sol-gel method

From Advanced Functional Materials:

Functional Soft Composites As Thermal Protecting Substrates for Wearable Electronics

Research roundup: Microencapsulated sugarcane wax; night ventilation; caprylic acid composite; more

Ben Welter - Friday, August 23, 2019

From Chemical Engineering:

Thermal properties and behavior of microencapsulated sugarcane wax phase change material

From Renewable Energy:

Experimental study on the influence of preparation parameters on strengthening stability of phase change materials (PCMs)
Climatic and seasonal suitability of phase change materials coupled with night ventilation for office buildings in Western China

From Applied Energy:

Thermal energy storage (TES) with phase change materials (PCM) in solar power plants (CSP). Concept and plant performance

From Materials Research Express:

Preparation and thermal characteristics of caprylic acid based composite as phase change material for thermal energy storage

From Energy Conversion and Management:

Thermodynamic assessment of an integrated renewable energy multigeneration system including ammonia as hydrogen carrier and phase change material energy storage

From Russian Journal of General Chemistry:

Symmetrical Fatty Dialkyl Carbonates as Potential Green Phase Change Materials: Synthesis and Characterisation

From Journal of Physics: Conference Series:

An Integrated Energy Power Generation with Energy Storage System

From Safety in Extreme Environments:

Review of energy storage technologies in harsh environment

From Materials Today: Proceedings:

Review on performance assessment of phase change materials in buildings for thermal management through passive approach

From International Journal of Environmental Science and Technology:

Sunlight-driven organic phase change material-embedded nanofiller for latent heat solar energy storage

From International Journal of Energy Research:

Application of a ground source heat pump system with PCM‐embedded radiant wall heating for buildings

From Industrial & Engineering Chemistry Research:

Theoretical Evaluation of an Organic Phase Change Material (PCM)-Inserted Dual-Functional Adsorbent for the Recovery of Heat of Adsorption

From Chemical Engineering Journal:

Flame-retardancy and thermal properties of a novel phosphorus-modified PCM for thermal energy storage

From Solar Energy:

Numerical study on charging characteristics of heat pipe-assisted cylindrical capsule for enhancing latent thermal energy storage

From Renewable Energy and Environmental Sustainability:

Use of phase change materials in concrete: current challenges

From Solar Energy Materials and Solar Cells:

Ambient pressure dried flexible silica aerogel for construction of monolithic shape-stabilized phase change materials

From Applied Thermal Engineering:

Preparation and properties of phase change temperature-tuned composite phase change material based on sodium acetate trihydrate–urea/fumed silica for radiant floor heating system

From Sustainable Cities and Societies:

Cardinal orientation and melting temperature effects for PCM-enhanced light-walls in different climates

From Journal of Thermal Analysis and Calorimetry:

Phase change materials (PCMs) for improving solar still productivity: a review

Research roundup: Diatomite‐based hydrated salt composites; zinc oxide coating of hermetically encapsulated paraffins; more

Ben Welter - Thursday, July 25, 2019

From International Journal of Energy Research:

Design of diatomite‐based hydrated salt composites with low supercooling degree and enhanced heat transfer for thermal energy storage

From Journal of Physical Chemistry B:

Clusters in Liquid Fatty Acids: Structure and Role in Nucleation

From Construction and Building Materials:

Development of thermal energy storage lightweight structural cementitious composites by means of macro-encapsulated PCM
Preparation of microencapsulated phase change materials used graphene oxide to improve thermal stability and its incorporation in gypsum materials

From Journal of Power and Energy:

Numerical modelling of phase change material melting process embedded in porous media: Effect of heat storage size

From Advanced Materials Interfaces:

Phase Change Materials: Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins

From NASA Technical Reports Server:

Utilization of Micro Tube Heat Exchanger for Next Generation Phase Change Material Heat Exchanger Development

From SN Applied Sciences:

Encapsulation of paraffin wax by rigid cross-linked poly (styrene divinylbenzene-acrylic acid) and its thermal characterization

From Energy Conversion and Management:

Transient performance of a Peltier super cooler under varied electric pulse conditions with phase change material

From Applied Thermal Engineering:

Thermal optimization of a kirigami-patterned wearable lithium-ion battery based on a novel design of composite phase change material
An experimental and theoretical study of the solidification process of phase change materials in a horizontal annular enclosure

From Journal of Energy Storage:

Enhancement of the thermal energy storage capacity of a parabolic dish concentrated solar receiver using phase change materials

From Renewable Energy:

Numerical simulation on the thermal performance of a PCM-containing ventilation system with a continuous change in inlet air temperature

From Energy Fuels:

Graphene modified hydrate salt/UV-curable resin form-stable phase change materials: continuously adjustable phase change temperature and ultrafast solar-to-thermal conversion

From Journal of Industrial and Chemical Engineering:

Thermal performance enhancement of a phase change material with expanded graphite via ultrasonication

From Chemistry Select:

Microencapsulation of Stearic Acid into Strontium Titanate Shell by Sol‐Gel Approach for Thermal Energy Storage

Research roundup: Spent coffee grounds; tropical tree fruit oils; natural rubber composites; more

Ben Welter - Friday, July 05, 2019

From Chemosphere:

Spent coffee grounds as supporting materials to produce bio-composite PCM with natural waxes

From Biotechnology Reports:

Novel phase change materials for thermal energy storage: evaluation of tropical tree fruit oils

From Construction and Building Materials:

Compressive strength and hygric properties of concretes incorporating microencapsulated phase change material
Thermal enhanced cement-lime mortars with phase change materials (PCM), lightweight aggregate and cellulose fibers

From Case Studies in Thermal Engineering:

Optimal fin parameters used for enhancing the melting and solidification of phase-change material in a heat exchanger unite

From Materials Chemistry and Physics:

Porous geopolymer as a possible template for a phase change material

From Journal of Physics: Conference Series:

Thermophysical Characteristics of VCO-Soybean Oil Mixture as Phase Change Material (PCM) using T-History Method

From Rubber Chemistry and Technology:

Phase-Change Material: Natural Rubber Composites for Heat Storage Applications

From Powder Technology:

An enthalpy based discrete thermal modelling framework for particulate systems with phase change materials

From Chemistry Select:

Carbon Soot/n–carboxylic Acids Composites As Form‐stable Phase Change Materials For Thermal Energy Storage

From International Journal of Heat and Mass Transfer:

Experimental study of thermo-physical properties and application of paraffin-carbon nanotubes composite phase change materials
High thermal response rate and super low supercooling degree microencapsulated phase change materials (MEPCM) developed by optimizing shell with various nanoparticles

From Applied Thermal Engineering:

Design optimization of the phase change material integrated solar receiver: A numerical parametric study

From Solar Energy Materials and Solar Cells:

Synthesis and characterization of ditetradecyl succinate and dioctadecyl succinate as novel phase change materials for thermal energy storage

From Advanced Materials Interfaces:

Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins

From Journal of Energy Storage:

Heat transfer enhancement of charging and discharging of phase change materials and size optimization of a latent thermal energy storage system for solar cold storage application

Research roundup: Zinc oxide coating; TEG-PCM power enhancement; graphen-oxide aerogel beads; more

Ben Welter - Friday, May 10, 2019

From Advanced Materials Interfaces:

Doubly Coated, Organic–Inorganic Paraffin Phase Change Materials: Zinc Oxide Coating of Hermetically Encapsulated Paraffins

From Applied Energy:

Efficiency analysis and experimental validation of the ocean thermal energy conversion with phase change material for underwater vehicle
A numerical and experimental analysis of an integrated TEG-PCM power enhancement system for photovoltaic cells
Molten salt selection methodology for medium temperature liquid air energy storage application

From Applied Energy Materials:

Graphene-Oxide Aerogel Beads Filled with Phase Change Material for Latent Heat Storage and Release

From Journal of Wuhan University of Technology:

Effect of Modified Vermiculite on the Interface of a Capric Acid-expanded Vermiculite Composite Phase Change Material with Phase Transition Kinetics

From Journal of Molecular Liquids:

Numerical simulation of the melting process of nanostructured based colloidal suspensions phase change materials including the effect of the transport of the particles

From Fibers and Polymers:

Encapsulated Phase Change Material Embedded by Graphene Powders for Smart and Flexible Thermal Response

From Applied Thermal Engineering:

Influence of orientation on thermal performance of shell and tube latent heat storage unit

From Journal of Energy Storage:

Development and validation of the numerical model of an innovative PCM based thermal storage system

From 2nd International Conference on Power, Energy and Environment:

Feasibility Study of the Application of a Latent Heat Storage in a Solar Dryer for Drying Green Chili

From Solar Energy:

Tetradecyl oxalate and octadecyl oxalate as novel phase change materials for thermal energy storage
An analytical and comparative study of the charging and discharging processes in a latent heat thermal storage tank for solar water heater system
Effect of alkaline pH on formation of lauric acid/SiO2 nanocapsules via sol-gel process for solar energy storage

From Journal of Applied Polymer Science:

Preparation and characterization of paraffin microcapsules for energy‐saving applications

From Energy:

Flexible heatsink based on a phase-change material for a wearable thermoelectric generator

From Journal of Nanoscience and Nanotechnology:

Superior Form-Stable Phase Change Material Made with Graphene-Connected Carbon Nanofibers and Fatty Acid Eutectics

From Construction and Building Materials:

Thermal and rheological characterization of bitumen modified with microencapsulated phase change materials

From Thermochimica Acta:

Development of spherical α-Al2O3-based composite phase change materials (PCMs) and its utilization in thermal storage building materials

From Journal of Power Sources:

Thermophysical properties of trimethylolethane (TME) hydrate as phase change material for cooling lithium-ion battery in electric vehicle

From Solar Energy Materials and Solar Cells:

Applications of cascaded phase change materials in solar water collector storage tanks: A review
Thermal conductivity enhancement of hydrated salt phase change materials employing copper foam as the supporting material

Patent application: PCM composites and methods of manufacture thereof

Ben Welter - Friday, May 03, 2019

U.S. patent application 20190127620 (applicant Rogers Corp., Chandler, Ariz.):

"A composite includes a polymer; and a phase-change composition including an unencapsulated first phase-change material, and an encapsulated second phase-change material. ... A method of manufacturing the composite or the article includes combining the polymer or a prepolymer composition optionally including a solvent, the unencapsulated first phase-change material, the encapsulated second phase-change material, and optionally an additive to form a mixture; forming an article from the mixture; and optionally removing the solvent to manufacture the composite."

http://www.freepatentsonline.com/20190127620.pdf

Research roundup: Spherical encapsulation; thermal therapy respirator; nanoporous composite; PCM effect on cement; more

Ben Welter - Friday, May 03, 2019

From Journal of Energy Storage:

Performance comparison of four spherically encapsulated phase change materials for medium temperature domestic applications

From International Journal of Thermal Sciences:

Exploration of a thermal therapy respirator by introducing a composite phase change block into a commercial mask

From Renewable and Sustainable Energy Reviews:

Review on nanoporous composite phase change materials: Fabrication, characterization, enhancement and molecular simulation

From Sci:

The Effect of Phase Change Materials on the Physical, Thermal and Mechanical Properties of Cement 

From Applied Energy:

High energy-density and power-density thermal storage prototype with hydrated salt for hot water and space heating

From Journal of Thermal Science and Engineering Applications:

Thermal Cycling of Calcium Chloride Hexahydrate With Strontium Chloride as a Phase Change Material for Latent Heat Thermal Energy Storage Applications in a Nondifferential Scanning Calorimeter Set-Up
Numerical Investigation of Scheffler Concentrator Receiver for Steam Generation Using Phase Change Material

From IntechOpen:

Solar Thermal Energy Storage Using Paraffins as Phase Change Materials for Air Conditioning in the Built Environment

From Reactive and Functional Polymers:

Design and fabrication of pH-responsive microencapsulated phase change materials for multipurpose applications

From Advances in Fluid and Thermal Engineering:

Experimental Investigation on a Solar Thermal Energy Packed Bed Sensible Heat Storage Combined with Latent Heat Storage

From Bulletin of Materials Science:

Development of an acetanilide/benzoic acid eutectic phase change material based thermal energy storage unit for a passive water heating system

From International Journal of Heat and Mass Transfer:

Solidification performance of a latent heat storage unit with innovative longitudinal triangular fins

Research roundup: Surface functionalization of composite PCM; EnergyPlus optimization; direct expansion solar heat pump; more

Ben Welter - Friday, April 26, 2019

From Applied Surface Science:

Effects of surface functionalization on thermal and mechanical properties of graphene/polyethylene glycol composite phase change materials

From Applied Energy:

Facile flexible reversible thermochromic membranes based on micro/nanoencapsulated phase change materials for wearable temperature sensor
Shape-remodeled macrocapsule of phase change materials for thermal energy storage and thermal management
Investigation on the thermal performance of a high temperature packed bed thermal energy storage system containing carbonate salt based composite phase change materials
Toward a new method for the design of combined sensible/latent thermal-energy storage using non-dimensional analysis
Strategic control and cost optimization of thermal energy storage in buildings using EnergyPlus
Adaptive measures for mitigating urban heat islands: The potential of thermochromic materials to control roofing energy balance

From Solar Energy Materials and Solar Cells:

Poly(styrene-co-divinylbenzene-co-acrylamide)/n-octadecane microencapsulated phase change materials for thermal energy storage

From Renewable and Sustainable Energy Reviews:

Recent advances in direct expansion solar assisted heat pump systems: A review
Review on nanoporous composite phase change materials: Fabrication, characterization, enhancement and molecular simulation

From Energy and Buildings:

Experimental Testing of Phase Change Materials in a Warm-Summer Humid Continental Climate

From International Journal of Energy Research:

Development of pentadecane/diatomite and pentadecane/sepiolite nanocomposites fabricated by different compounding methods for thermal energy storage

From Applied Thermal Engineering:

Heat transfer performance of graphene nano-platelets laden micro-encapsulated PCM with polymer shell for thermal energy storage based heat sink

From Journal of Applied Polymer Science:

Investigations on thermal properties of microencapsulated phase‐change materials with different acrylate‐based copolymer shells as thermal insulation materials

From Solar Energy:

Experimental investigation on the impact of thermal energy storage on the solar still performance coupled with PV module via new integration

From Thermochimica Acta:

Nanoencapsulated phase change material with polydopamine-SiO2 hybrid shell for tough thermo-regulating rigid polyurethane foam

From International Journal of Heat and Mass Transfer:

Optimization of the detailed factors in a phase-change-material module for battery thermal management

From Journal of Traffic and Transportation Engineering :

A review on the best practices in concrete pavement design and materials in wet-freeze climates similar to Michigan

From Case Studies in Thermal Engineering:

Study of a passive solar air heater using palm oil and paraffin as storage media

From Acta Microscopica:

Preparation of Graphene Hybrid Material and Thermal Properties of Polymer Composites