Phase Change Matters RSS

 

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.

Two Entropy advisors, Dr. Mohammed Farid and Lucas B. Hyman, are pleased to take your questions about PCMs and thermal energy storage. Send your questions to bwelter@puretemp.com. We'll select the best and post the answers here each week.

RECENT POSTS

TAGS

ARCHIVE

PCM briefing: Viking Cold Solutions lands deal in Phoenix; study finds ARPA-E is doing what it was designed to do

Ben Welter - Monday, June 19, 2017

Viking Cold Solutions has announced a collaboration between Salt River Project and Bashas' Supermarkets to install and evaluate the performance of Viking's PCM-based thermal energy storage system at Bashas' distribution center in the Phoenix area. The system is expected to significantly reduce energy costs by shifting peak demand to nighttime hours.

A six-year study finds that ARPA-E, the U.S. Energy Department program that supports cutting-edge energy technologies, is meeting the goals of the 2007 law that created it even as the Trump administration seeks to eliminate its funding. The National Academies of Sciences, Engineering and Medicine report concludes that the program is moving in the right direction and does not require major changes to keep bringing new energy technologies to market.

• The co-creator of a camisole that uses phase change material to reduce the discomfort of hot flashes is profiled in ChicagoInno this month. Nancy Munro, who is selling "CoolCami" online, hopes to partner with a women’s undergarment company like Spanx or Soma. CoolCami is made of absorbent bamboo fabric and features a PCM-filled cooling liner.

Peli BioThermal reports that its ProMed thermal transport bags performed well in a five-month trial in the United Kingdom. The Great North Air Ambulance Service used the bags to transport blood plasma to accident scenes.

Ministry of Supply, the Boston startup that integrates phase change material in its high-tech menswear, has added a lightweight polo shirt to its lineup. The machine-washable Apollo 3 Polo sells for $70. 

Axiom Exergy, maker of "refrigeration batteries" designed to reduce energy use in supermarkets, is looking to fill eleven positions, including product engineer, product engineer manager and engineering intern. Candidates for the internship are asked to give a concise response to a "bonus question": "Given the choice between pure water and a NaCl-water solution as the thermal energy storage medium in medium temperature (40°F, 4.4°C) refrigeration applications, what are the pros and cons of each material?"

CIC energiGUNE is looking for a laboratory technician to join the Thermal Energy Storage unit's materials development and characterization group.

• The European Commission, in with collaboration with Skanska, Saint-Gobain, Sustainable Building Alliance and Green Building Councils, has developed an open-source assessment framework for measuring the energy performance of buildings. Level(s) links a building’s environmental impact with resource priorities at the European level. The voluntary tool will be ready for testing this fall.

Va-Q-tec AG has established a Japanese subsidiary in Tokyo. The German company develops, manufactures and sells vacuum insulation panels and phase change materials for use in thermal packaging, air freight containers and other applications. Va-Q-tec Japan GK will focus on providing "small box and container sales and rental solutions" in the Asian market.

• A recent New York Times piece answered the question: "What if you need a battery? A really big one — big enough to run a city?" A 2.35-million-square-foot office tower in New York City is among many buildings around the world equipped with a system that stores energy in the form of ice. The system freezes water overnight to help cool the building during the day, when electricity is typically more expensive.  

Massachusetts has awarded $1.5 million to help fund installation of more than 200 residential thermal energy storage units on Nantucket. Ice Energy, which makes the Ice Bear units, is partnering with Genbright LLC on the project. The goal is to help reduce peak energy demand and demonstrate an alternative to a third undersea transmission line to the island.

SaltX Technology and Aalborg CSP have agreed to work together to develop and commercialize an integrated energy storage solution for concentrated solar power based on EnerStore, SaltX's patented technology for large-scale energy storage. A prototype is scheduled to be built later this year with the aim of securing a commercial pilot plant in 2018.

PCM briefing: Tessol featured in Forbes India; Terrafore Technologies selected for Argonne program

Ben Welter - Monday, June 05, 2017

Thermal Energy Service Solutions, maker of a PCM-based "plug-and-chill" refrigeration system for delivery trucks, is profiled in this month's issue of Forbes India. The system's heat exchanger is designed to keep the refrigerator on the truck within the optimal temperature range for a full day’s operation without drawing power from the engine. The heat exchanger can be fully charged in about six hours at any power outlet.

C-Therm Technologies will be among the exhibitors the Techtextil North America trade show in Chicago June 20-22. The company will demonstrate its non-destructive TCi Property Analyzer, which is designed to characterize the thermal performance (the “warm feel” or “cool touch”) of textiles, fabrics and apparels.

Terrafore Technologies of Minneapolis is one of seven small businesses recently selected to collaborate with researchers at Argonne National Laboratory as part of the Department of Energy's Small Business Vouchers program. Terrafore and Argonne will test the reliability of phase change salt capsules for a compact high-temperature thermal energy storage system for concentrated solar power.

SpecialChem is offering an online course titled "How to Search & Map U.S. Patents for Patentability." The 90-minute course, scheduled for June 28, is designed to for R&D people "looking to avoid patent infringement by enhancing their patent searching and mapping skills." The cost for three attendees on one connection is 300 euros.

Research roundup: Shape-stabilized PCM in epoxy matrix; myristyl alcohol/metal foam for solar thermal storage; more

Ben Welter - Thursday, June 01, 2017

Illustration of shape-stabilized PCM in epoxy matrix

Novel shape stabilized phase change material based on epoxy matrix with ultrahigh cycle life for thermal energy storage [Applied Thermal Engineering]

Thermal and electrical performance of a PV module integrated with double layers of water-saturated MEPCM [Applied Thermal Engineering]

Investigation on thermal and mechanical characteristics of concrete mixed with shape stabilized phase change material for mix design [Construction and Building Materials]

Thermal properties and thermal conductivity enhancement of composite phase change materials using myristyl alcohol/metal foam for solar thermal storage [Solar Energy Materials and Solar Cells]

Experimental and Numerical Study on Energy Performance of Buildings Integrated with Phase Change Materials [Energy Procedia]

Evaluation on Performance of a Phase Change Material Based Cold Storage House [Energy Procedia]

Using Phase Change Materials to Reduce Overheating Issues in UK Residential Buildings [Energy Procedia]

Effect of Supercooling on the Solidification Process of the Phase Change Material [Energy Procedia]

Experimental Investigation of a Spiral Tube Embedded Latent Thermal Energy Storage Tank Using Paraffin as PCM [Energy Procedia]

Investigation of specific heat and latent heat enhancement in hydrate salt based TiO2 nanofluid phase change material [Applied Thermal Engineering]

Modeling and investigation of high temperature phase change materials (PCM) in different storage tank configurations [Journal of Cleaner Production]

Lauric acid/modified sepiolite composite as a form-stable phase change material for thermal energy storage [Applied Clay Science]

PCM briefing: Outlast introduces Xelerate fabric; Warmilu signs 2 distributors

Ben Welter - Friday, May 19, 2017

Drawing of Outlast Xelerate

Outlast Europe's Martin Bentz spoke with T.EVO magazine this month about the company's new Xelerate fabric. The fabric, introduced at a German trade fair earlier this year, incorporates "heat spreader" technology, a process traditionally known for cooling electronic devices. Xelerate fabric features improved thermal conductivity, Bentz said, and is suitable for home textiles, sportswear and protective gear. In an email exchange with Phase Change Matters, Bentz declined to discuss specific partners or customers.

Warmilu, maker of the IncuBlanket infant warmer, reports that is on track for $300,000 in total 2017 sales after signing two distributors for Latin America, Africa and Southeast Asia: Relief for Africa Foundation and Maternova. The IncuBlanket, which has been successfully tested in clinical trials in India, uses packs filled with sodium acetate trihydrate to keep infants warm for up to five hours. CEO Grace Hsia says the device recently cleared its first regulatory filing with Kenya's Pharmacy and Poisons Board.

Axiom Exergy has won a Gold Stevie for Energy Innovation in the 15th annual American Business Awards. Axiom's "refrigeration battery" enables supermarkets and food warehouses to store thermal energy at night when power is cheaper. The system, which uses salt-based phase change material, reduces peak power usage by up to 40 percent.

• Registration is open for IFAI's Expo 2017, set for Sept. 27-29 in New Orleans. The Industrial Fabrics Association International show will feature sessions on smart fabrics, military procurement, biomimesis and green certification.   

Pelican BioThermal has introduced a new Series 22 Universal system for its Credo brand of shippers. The system uses a dual PCM coolant system designed to be operational throughout the year.

National Law Review offers a fresh overview of green chemistry laws across the United States. "State chemical control regimes," the authors conclude, "are likely to increase cost and foster confusion about chemical safety, which is one reason that Congress agreed to modernize TSCA by adopting LCSA."

Monodraught's Cool-phase ventilation and cooling system was among the finalists honored at the National CSR Awards in London this week. The hybrid system, which won a "One to Watch" award, uses PCMs to store and release thermal energy, providing a free cooling load and reducing energy and maintenance costs.

• The agenda has been released for the 15th Cold Chain Global Forum to be held Sept. 25-29 in Chicago. Frank Butch, director of engineering at Sonoco ThermoSafe, will lead a master class on temperature assurance packaging certification.

Bloomberg BNA is offering a free webinar June 12: "Reviewing New Chemicals under Amended TSCA: Impact on Innovation." 

Outlast Europe's Martin Bentz spoke with T.EVO magazine this month about the company's new Xelerate fabric (shown below). The fabric, introduced at a German trade fair earlier this year, incorporates "heat spreader" technology, a process traditionally known for cooling electronic devices. Xelerate fabric features improved thermal conductivity, Bentz said, and is suitable for home textiles, sportswear and protective gear. In an email exchange with Phase Change Matters, Bentz declined to discuss specific partners or customers.

Research roundup: Crystallization of salt hydrates in polymeric foam; Glauber's salt; cetyl alcohol/HDPE composites; more

Ben Welter - Thursday, May 18, 2017

Numerical study on melt fraction during melting of phase change material inside a sphere [International Journal of Hydrogen Energy]

Crystallization of inorganic salt hydrates in polymeric foam for thermal energy storage application [Journal of Energy Storage]

Evaluating the passive and free cooling application methods of phase change materials in residential buildings: A comparative study [Energy and Buildings]

Microstructure and thermal properties of cetyl alcohol/high density polyethylene composite phase change materials with carbon fiber as shape-stabilized thermal storage materials [Applied Energy]

Screening alternatives for producing paraffinic phase change materials for thermal energy storage in buildings [International Journal of Energy Research]

Various Applications of Phase Change Materials: Thermal Energy Storing Materials [pdf] [International Journal of Emerging Research in Management]

Preparation and thermal properties of Glauber’s salt-based phase-change materials for Qinghai–Tibet Plateau solar greenhouses [International Journal of Modern Physics B]

Numerical analysis on the energy storage efficiency of phase change material embedded in finned metal foam with graded porosity [Applied Thermal Engineering]

Passive cooling potential in buildings under various climatic conditions in India [Renewable and Sustainable Energy Reviews]

PCM briefing: MiraCradle wins commercialization award; ThermoSafe introduces Certis 2-Day Platform

Ben Welter - Friday, May 12, 2017

Pluss Advanced Technologies of India has won a Ministry of Micro, Small & Medium Enterprises award for successful commercialization of the MiraCradle, a low-cost passive cooling device for treating newborns suffering from birth asphyxia. India's president, Pranab Mukherjee, presented the award Thursday at a National Technology Day event in New Delhi. The device uses form-stable inorganic phase change materials.

Energy Storage North America is seeking nominations for its 2017 Innovation Awards. Thermal storage projects are eligible. Winners will be honored at ESNA's annual conference and expo, Aug. 8-10 in San Diego, Calif. The deadline for entering is June 2.

Sonoco ThermoSafe has expanded the Certis brand of one-way shipping solutions to include a two-day platform for the distribution of pharmaceutical and biological products. Like its three- and five-day predecessors, the Certis 2-Day Platform employs the same pack-out for 2-8° C, 15-25° C and frozen shipments. It uses just four shippers and three types of phase change material to create 12 shipping solutions.

Entropy Solutions, maker of PureTemp phase change materials, will be among the companies honored with a Eureka! Innovation Award at a reception in June. The Minneapolis/St. Paul Business Journal awards program, now in its fourth year, recognizes "game-changing" Minnesota businesses in energy, manufacturing, media, health care, product design, engineering, architecture and other categories.

SupplyChainBrain recently spoke with supply chain executives about about the tools, talents and techniques needed to create accurate and responsive demand forecasts. Jane Kaiser, director of North American supply chain planning for Monsanto, cites collaborative forecasting as one way suppliers and customers can succeed. "It’s a question of [better] data mining, being truthful with each other, talking to one another," said Kaiser.

• As air freight rates remain high and capacity tightens, more temperature-sensitive medicines are moving by ocean freight, writes Cathy Robertson of Logistics Trends & Insights.

• New from QYResearch: "Global Phase Change Materials Market Forecast 2017-2022 Industry DuPont, BASF SE, Royal Dutch Shell, Climator Sweden."

• A seminar titled "PCM and Thermal Energy Storage: Characterization of TES Materials by Thermal Analysis, Calorimetry and Thermal Conductivity" will be held in Milan and Naples next week. The free seminar, presented by Automation Ltd. in collaboration with Milan Polytechnic and others, will focus on how the thermal analysis, calorimetric and thermal conductivity methods can be used to investigate the different TES techniques and to characterize the transitions or reactions of typically used materials (fatty acids, paraffins, organic substances, inorganic salts, adsorbents, clathrates).

• In a piece written for North American Clean Energy, Axiom Exergy's Ryan Anderson outlines the benefits of thermal energy storage systems. Saltwater-based systems, he writes, avoid "many of the often hidden, balance of systems costs that electrochemical or flow batteries must account for, such as power converters, fire suppression, and interconnection charges/regulatory time."

• xxxxxx

Research roundup: Hydrogen-based PCM micro engine; PV module temperature stabilization; more

Ben Welter - Wednesday, May 10, 2017

A new hydrogen-based phase change material open-cycle micro engine [International Journal of Hydrogen Energy]

Photovoltaic module temperature stabilization with the use of phase change materials [Solar Energy]

A review of salt hydrates for seasonal heat storage in domestic applications [Applied Energy]

Shape-stabilized composite phase change materials with high thermal conductivity based on stearic acid and modified expanded vermiculite [Renewable Energy]

Experimental investigation of a latent heat storage for solar cooling applications [Applied Energy]

Novel CFD-based numerical schemes for conduction dominant encapsulated phase change materials (EPCM) with temperature hysteresis for thermal energy storage applications [Energy]

Performance evaluation of a novel solar photovoltaic–thermal collector with dual channel using microencapsulated phase change slurry as cooling fluid [Energy Conversion and Management]

Research roundup: Expanded graphite/adipic acid composite PCMs; nanomagnetite enhanced paraffin; more

Ben Welter - Friday, April 28, 2017

From Journal of Thermal Analysis and Calorimetry:

Preparation and thermal cycling of expanded graphite/adipic acid composite phase change materials

From RSC Advances:

Phase change materials of fatty amine-modified silicate clays of nano layered structures
Myristic acid-hybridized diatomite composite as a shape-stabilized phase change material for thermal energy storage

From 4th Sustainable Thermal Energy Management International Conference:

Domestic thermal storage requirements for heat demand flexibility

From Smart Materials and Nondestructive Evaluation for Energy Systems:

Novel dynamic thermal characterization of multifunctional concretes with microencapsulated phase change materials

From Digest Journal of Nanomaterials and Biostructures:

Nanomagnetite Enhanced Paraffin for Thermal Energy Storage Applications [pdf]

From Energy Procedia:

Solar Thermal Energy with Molten-salt Storage for Residential Heating Application

From Solar Energy:

Performance study and analysis of an inclined concentrated photovoltaic-phase change material system

From Energy:

Preparation, thermal properties and thermal reliability of a novel mid-temperature composite phase change material for energy conservation

From Applied Thermal Engineering:

Investigation on the thermal performance of a high-temperature latent heat storage system

From Cement and Concrete Composites:

Numerical simulations to quantify the influence of Phase Change Materials (PCMs) on the early- and later-age thermal response of concrete pavements

From International Journal of Refrigeration:

Performance study on air-cooled household refrigerator with cold storage phase change materials

From Energy and Buildings:

Novel thermosetting phase change materials with polycarbonatediol based curing agent as supporting skeleton for thermal energy storage 

From Journal of Cleaner Production:

Improving thermal response of lightweight timber building envelopes during cooling season in three European locations 

Research roundup: Waste heat extraction; thermal sintering Pickering emulsion-based colloidosomes; more

Ben Welter - Tuesday, April 18, 2017

Micro-encapsulated phase change material (MPCM) slurries: Characterization and building applications [Renewable and Sustainable Energy Reviews]

Coupling waste heat extraction by phase change materials with superheated steam generation in the steel industry [Energy]

Large-scale high-temperature solar energy storage using natural minerals [Solar Energy Materials and Solar Cells]

Hierarchical nano-activated silica nanosheets for thermal energy storage [Solar Energy Materials and Solar Cells]

Microencapsulation through thermal sintering Pickering emulsion-based colloidosomes [Soft Matter]

Preparation of polyurea microcapsules containing phase change materials in a rotating packed bed [RSC Advances]

Dynamic measurement of the thermal conductivity of phase change materials in the liquid phase near the melting point [International Journal of Heat and Mass Transfer]

Investigation of Energy Performance in Conventional and Lightweight Building Components with the use of Phase Change Materials (PCMS): Energy Savings in Summer Season [Procedia Environmental Sciences]

Novel synthesis of cobalt/poly vinyl alcohol/gamma alumina nanocomposite for catalytic application [Applied Physics A]

Research roundup: Cenospheres in concrete; form-stable composites with polyacrylic; rice bran distilled fatty acid; more

Ben Welter - Thursday, April 13, 2017

Numerical studies on thermal and electrical performance of a fully wetted absorber PVT collector with PCM as a storage medium [Renewable Energy]

Integrating phase change materials into concrete through microencapsulation using cenospheres [Cement and Concrete Composites]

Testing and performance analysis of micro encapsulated rice bran distilled fatty acid [International Journal of Computer Aided Engineering and Technology]

Enhanced thermal management with microencapsulated phase change material particles infiltrated in cellular metal foam [Energy]

Thermal performance study of form-stable composite phase change material with polyacrylic [AIP Conference Proceedings]

Design and Preparation of Carbon Based Composite Phase Change Material for Energy Piles [Materials]

Single-walled carbon nanotube for shape stabilization and enhanced phase change heat transfer of polyethylene glycol phase change material [Energy Conversion and Management]

Applications of Nanocomposite-Enhanced Phase-Change Materials for Heat Storage [Materials Science Forum]

Fatty acids and related phase change materials for reliable thermal energy storage at moderate temperatures [Solar Energy Materials and Solar Cells]

A study of a eutectic salt of lithium nitrate and sodium chloride (87–13%) for latent heat storage [Solar Energy Materials and Solar Cells]

Thermal stabilization and permanent deformation resistance of LWA/PCM-modified asphalt road surfaces [Construction and Building Materials]