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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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PCM briefing: Acumen invests in Promethean Power Systems; Viking Cold wins Cleanie award

Ben Welter - Monday, October 14, 2019

• Social venture capital investor Acumen has invested an undisclosed amount in Promethean Power Systems Inc., which makes PCM-based refrigeration systems for cold-storage and milk chilling applications in off-grid and partially electrified areas of developing countries. Jiten Ghelani, chief executive of Promethean, which is based in Boston, Mass., and Pune, India, said the investment would help the company accelerate the adoption of its products across India and other markets, and also expand its cooling-as-a-service offerings. 

Air New Zealand pillow• Two new consumer products featuring temperature-control fabrics from Outlast Technologies hit the market recently: A pillow designed to improve the quality of sleep for passengers on Air New Zealand's long-haul flights and a Calloway pullover designed to keep golfers cool in warm weather and warm in cold weather

Viking Cold Solutions of Houston, Texas, won a Platinum Cleanie Award last month for a PCM-based storage and demand management project in Massachusetts. The Cleanie Awards, presented at this year's North America Smart Energy Week in Salt Lake City, Utah, recognize companies and individuals shaping the clean-tech and renewable energy industries. The Viking Cold project involved the installation and commissioning of TES systems to store refrigeration energy and facilitate 1.3 MW of energy demand reduction across eight customer facilities, including the Greater Boston Food Bank.

Sonoco ThermoSafe of Arlington Heights, Ill., has introduced a new temperature-controlled box rental service. "The new Orion r product line is based on the existing ChillTech product," said Ben VanderPlas, manager of engineering and product management at Sonoco. "We’ve made changes to make the product more reusable (added EPP) and have increased the VIP insulation. The PCMs remain the same, using paraffin-based materials. ChillTech was developed by Laminar Medica in the UK prior to their acquisition and integration into the ThermoSafe business. Solutions will exist for 2-8, 15-25 and frozen temperatures."

Sonoco ThermoSafe has posted an opening for a Senior Account Manager Europe, to be based in Netherlands.

Microtek Laboratories Inc. of Dayton, Ohio, has introduced a new line of PCM-equipped pouches and panels for use in temperature-controlled shipping.

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 coconut oil; mixed alkanes microcapsules; low-hydration heat cement slurry; more

Ben Welter - Tuesday, August 27, 2019

From Cellulose:

Microencapsulated organic coconut oil as a natural phase change material for thermo-regulating cellulosic fabrics

From Journal of Physics: Conference Series:

Numerical and experimental investigation of melting process in spherical PCM capsule used for low-temperature thermal energy storage systems

From Energy:

Synthesis and characterization of mixed alkanes microcapsules with phase change temperature below ice point for cryogenic thermal energy storage
Preparation of Low Hydration Heat Cement Slurry with Micro-encapsulated Thermal Control Material

From Applied Thermal Engineering:

A Three-Dimensional Numerical Investigation of a Novel Shallow Bore Ground Heat Exchanger Integrated with Phase Change Material

From Polymer Science:

Preparation of Phase Change Microcapsules with Inorganic/Polymer Hybrid Shell Through a “Two-Step” Reaction

From Solar Energy:

Improved thermal energy storage for nearly zero energy buildings with PCM integration

From Thermal Science and Engineering Progress:

A theoretical and experimental study of a TBAB salt hydrate based cold thermal energy storage in an air conditioning system

From Journal of Energy Storage:

A Review of Phase Change Materials for the Thermal Management and Isothermalisation of Lithium-Ion Cells

From Energy Conversion and Management:

Experimental performance evaluation of a novel designed phase change material integrated manifold heat pipe evacuated tube solar collector system

From Renewable and Sustainable Energy Reviews:

Corrosion mechanisms in molten salt thermal energy storage for concentrating solar power

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: Thermally conductive HDPE; pentaerythritol; RT44HC; epoxy resin composites; more

Ben Welter - Thursday, July 18, 2019

From Journal of Applied Polymer Science:

Thermally conductive high-density polyethylene as novel phase-change material: Application-relevant long-term stability
Reliable phase‐change polyurethane crosslinked by dynamic ionic‐bond crosslinking for thermal energy storage

From International Journal of Heat and Mass Transfer:

A molecular dynamics study of the effects of crystalline structure transition on the thermal conductivity of pentaerythritol as a solid-solid phase change material
A comparative study of the effect of varying wall heat flux on melting characteristics of phase change material RT44HC in rectangular test cells
High thermal response rate and super low supercooling degree microencapsulated phase change materials (MEPCM) developed by optimizing shell with various nanoparticles

From Materials Research Express:

Evaluation of thermophysical properties of shaped inorganic hydrated salt-based phase change materials for wall energy storage

From Construction and Building Materials:

Measurement and analysis of thermophysical parameters of the epoxy resin composites shape-stabilized phase change material
Thermal enhanced cement-lime mortars with phase change materials (PCM), lightweight aggregate and cellulose fibers

From Energy and Buildings:

Properties of concretes enhanced with phase change materials for building applications

From Hong Kong Polytechnic University:

Development of encapsulation methods for organic-based phase change materials in water

From Journal of Energy Storage:

Recent developments in the synthesis of microencapsulated and nanoencapsulated phase change materials

From Energy Conversion and Management:

Experimental and modeling study on thermal performance of hydrated salt latent heat thermal energy storage system

From Energies:

Thermal Response of Mortar Panels with Different Forms of Macro-Encapsulated Phase Change Materials: A Finite Element Study

From Renewable Energy:

Influence of the location of discrete macro-encapsulated thermal energy storage on the performance of a double pass solar plate collector system

From IOP Conference Series: Earth and Environmental Science:

Simulation and Analysis of Fuel Tank Heat Exchanger Based on Phase Change Material
Simulation Analysis of Thermal Storage Process of Phase Change Energy Storage Materials

From Nano-Structures & Nano-Objects:

Synthesis of organic phase change materials by using carbon nanotubes as filler material

From Processes:

Preparation and Performance Analysis of Graphite Additive/Paraffin Composite Phase Change Materials

From International Conference on Human-Computer Interaction:

Thermoregulating and Hydrating Microcapsules: Contributions of Textile Technology in the Design of Wearable Products for Wheelchair Dependents

From Materials Today:

Experimental study on hybrid natural circulation type solar air heater with paraffin wax based thermal storage

From Thermal Science and Engineering Progress:

Numerical and Experimental Investigation of Melting Characteristics of Phase Change Material-RT58

Research roundup: Foamed cement blocks; polyethylene glycol/wood flour composites; radiant ceiling panels; more

Ben Welter - Thursday, July 11, 2019

From Trends in Food Science & Technology:

Micro/nano-encapsulated phase change materials (PCMs) as emerging materials for the food industry

From Solar Energy Materials and Solar Cells:

A foamed cement blocks with paraffin/expanded graphite composite phase change solar thermal absorption material
Solvent-free preparation of bio-based polyethylene glycol/wood flour composites as novel shape-stabilized phase change materials for solar thermal energy storage
Spray-graphitization as a protection method against corrosion by molten nitrate salts and molten salts based nanofluids for thermal energy storage applications
Preparation and characterization of microencapsulated phase change materials containing inorganic hydrated salt with silica shell for thermal energy storage
Enhancing thermal conductivity of paraffin wax 53–57 °C using expanded graphite

From Solar Energy:

Simultaneous charging and discharging of phase change materials: Development of correlation for liquid fraction

From Energy and Buildings:

Numerical study of the electrical load shift capability of a ground source heat pump system with phase change thermal storage

From International Conference on Materials, Environment, Mechanical and Industrial Systems:

Simulation-based analysis of the use of PCM and shading devices to improve the thermal comfort in buildings

From Applied Thermal Engineering:

Experimental study of a pilot-scale fin-and-tube phase change material storage
On-demand Intermittent Ice Slurry Generation for Subzero Cold Thermal Energy Storage: Numerical Simulation and Performance Analysis
Atomistic modelling of water transport and adsorption mechanisms in silicoaluminophosphate for thermal energy storage

From Clima 2019, 13th REHVA World Congress:

Experimental comparison of radiant ceiling panels and ceiling panels containing phase change material (PCM)

From Journal of Energy Storage:

Review of stability and thermal conductivity enhancements for salt hydrates
Characterisation of promising phase change materials for high temperature thermal energy storage

From Journal of Cleaner Production:

Self-assembly of 3D-graphite block infiltrated phase change materials with increased thermal conductivity

From Sustainable Cities and Society:

Thermal Performance Difference of Phase Change Energy Storage Units Based on Tubular Macro-encapsulation

From Renewable and Sustainable Energy Reviews:

State-of-technology review of water-based closed seasonal thermal energy storage systems

From Applied Energy:

Thermal energy storage in district heating and cooling systems: A review

From Polymers:

Fabrication and Characterization of Novel Shape-Stabilized Phase Change Materials Based on P(TDA-co-HDA)/GO Composites 

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: Form-stable PCM; polyethylene glycol/quartz composites; fuzzy clustering; more

Ben Welter - Tuesday, June 18, 2019

From Renewable Energy:

A N-octadecane/hierarchically Porous TiO2 Form-Stable PCM for Thermal Energy Storage

From International Journal of Energy Research:

Hybrid solar parabolic dish power plant and high‐temperature phase change material energy storage system

From Journal of Applied Polymer Science:

Thermal and dynamic mechanical properties of polyethylene glycol/quartz composites for phase change materials

From Journal of Cleaner Production:

Using fuzzy clustering and weighted cumulative probability distribution techniques for optimal design of phase change material thermal energy storage

From Construction and Building Materials:

Thermoregulation effect analysis of microencapsulated phase change thermoregulation agent for asphalt pavement

From Applied Energy:

Residential cooling using separated and coupled precooling and thermal energy storage strategies

Research roundup: High-conductivity nanomaterials; paper board packaging; battery thermal management; more

Ben Welter - Thursday, May 16, 2019

From Heat and Mass Transfer:

Experimental and numerical analysis of composite latent heat storage in cooling systems for power electronics

From Journal of Sol-Gel Science and Technology:

A robust, flexible superhydrophobic sheet fabricated by in situ growth of micro-nano-SiO2 particles from cured silicone rubber

From Journal of Thermal Analysis and Calorimetry:

High-conductivity nanomaterials for enhancing thermal performance of latent heat thermal energy storage systems

From Building Simulation:

Optimization and sensitivity analysis of design parameters for a ventilation system using phase change materials

From Journal of Packaging Technology and Research:

Thermal Analysis of Paper Board Packaging with Phase Change Material: A Numerical Study

From Energy Storage:

Thermal performance of battery thermal management system using composite matrix coupled with mini‐channel

From Phase Transitions:

A study on preparation and properties of carbon materials/myristic acid composite phase change thermal energy storage materials

From ACS Applied Materials & Interfaces:

Melamine Foam Supported Form-stable Phase Change Materials with Simultaneous Thermal Energy Storage and Shape Memory Property for Thermal Management of Electronic Devices

From International Conference on Thermal Engineering:

Performance Enhancement of Unitary and Packaged Air Conditioners With Phase Change Material
Performance Comparison of Different Phase Change Materials For Solar Cooking During off Sun Sunshine Hours
A Review on Enhancement of Thermophysical Properties of Paraffin Wax PCM With Nanomaterials
Nano-Enhanced PCMs for Low Temperature Thermal Energy Storage Systems and Passive Conditioning Applications

From Chemistry Select:

Designing Coconut Oil Encapsulated Poly(stearyl methacrylate‐co‐hydroxylethyl metacrylate) Based Microcapsule for Phase Change Materials

From Evolution in Polymer Technology Journal:

Enhancement of Thermo-Regulating Textile Materials Using Phase Change Material

From Materials Research Express:

Improved thermal characteristics of Ag nanoparticles dispersed myristic acid as composite for low temperature thermal energy storage

From Applied Energy:

On the performance of ground coupled seasonal thermal energy storage for heating and cooling: A Canadian context

From Solar Energy Materials and Solar Cells:

Thermal stability enhancement of d-mannitol for latent heat storage applications

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