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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.

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.

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Research roundup: Transient energy storage; metal alloys for high-temperature applications; low-cost PCM emulsion; more

Ben Welter - Wednesday, July 12, 2017

Transient thermal energy storage in partitioned enclosures packed with microencapsulated phase change materials [International Communications in Heat and Mass Transfer]

Considerations for the use of metal alloys as phase change materials for high temperature applications [Solar Energy Materials and Solar Cells]

Experimental analysis of a coiled stirred tank containing a low cost PCM emulsion as a thermal energy storage system [Energy]

Fabrication and characterization of novel shape-stabilized synergistic phase change materials based on PHDA/GO composites [Energy]

Fabrication of hard-shell microcapsules containing inorganic materials [International Journal of Refrigeration]

Renewable Energy and Energy Storage Systems [Energy]

Thermal Storage Capacity and Night Ventilation Performance of a Solar Chimney Combined with Different PCMs [International Journal of Photoenergy]

Preparation and characterizations of asphalt/lauric acid blends phase change materials for potential building materials [Construction and Building Materials]

Numerically Study the Performance of An Air—multiple PCMs unit for Free Cooling and Ventilation [Energy and Buildings]

Patent application: Air conditioner units having dehumidification features

Ben Welter - Tuesday, July 11, 2017

U.S. patent application 20170191721 (applicant General Electric Co., Schenectady, N.Y.):

"Air conditioner units are provided. An air conditioner unit includes an outdoor heat exchanger, the outdoor heat exchanger including a coil assembly through which refrigerant is flowable, and an indoor heat exchanger, the indoor heat exchanger comprising a coil assembly through which refrigerant is flowable. The air conditioner unit further includes an auxiliary heat exchanger [110, above] disposed between the outdoor heat exchanger and the indoor heat exchanger along a refrigerant flow path, the auxiliary heat exchanger including a coil assembly [112] through which refrigerant is flowable and further including a phase change material."

http://www.freepatentsonline.com/20170191721.pdf

Ohio company wins grant to develop geothermal energy storage with PCM

Ben Welter - Monday, July 03, 2017

Melink Corp. of Milford, Ohio, is one of 13 small companies to receive a share of $4.5 million in grants recently announced by the U.S. Department of Energy. 

The grants are funded through the department’s Small Business Innovation Research and Small Business Technology Transfer programs. The 13 companies are receiving the funding to develop "energy-efficient technologies in the buildings sector with a strong potential for commercialization and job creation." 

Melink, a global provider of energy efficiency and renewable energy solutions for the commercial building industry, added a new division in April to serve the geothermal heating, ventilation and air conditioning market. Melink received its grant to explore the development of geothermal seasonal energy storage based on phase change materials that could "dramatically lower the cost of storing energy."

http://www.einnews.com/pr_news/389670615/energy-department-announces-nearly-4-5-million-for-innovative-small-businesses-focused-on-building-energy-efficiency-technologies

PCM briefing: Cleanergy lands CSP contract in China; ASHRAE extends global reach

Ben Welter - Monday, July 03, 2017

• Team Sky cyclists competing in this year's Tour de France are using Inuteq's Siku vest to cool down after each stage. The Dutch company's hybrid vest combines PCM and evaporative cooling technologies. Inuteq says it is supplying its cooling products to two other teams: Bahrain Merida and Cannondale Drapac.

Calmac, the New Jersey company whose thermal energy storage tanks help cool more than more than 4,500 buildings worldwide, including the corporate headquarters of JC Penney, Marriott and Google, was profiled in Inc. magazine last week.  

Ember Technologies' temperature-controlled mug is a finalist in the 2017 International Design Excellence Awards in the Kitchen & Accessories category. The winners will be announced Aug. 16 at the International Designers Society of America conference in Atlanta. 

Cleanergy AB of Sweden has signed an agreement to deploy a 200-MW concentrating solar energy project in China. A Cleanergy spokeswoman confirmed that phase change material will be used in the CSP project's thermal storage system but declined to provide details about the PCM. 

Midsize energy and chemical companies are among the least prepared for the disruption that technological innovation and other changes will bring, a new report from Capital One Commercial Bank says.

• A U.S. House appropriations subcommittee last week advanced a bill that would impose deep cuts in renewable energy and efficiency programs at the Department of Energy and eliminate the Advanced Research Projects Agency-Energy, ARPA-E.

ASHRAE has announced the formation of a new ASHRAE Region in Europe and strategic partnerships with two European organizations: the UK-based Chartered Institute of Building Services Engineers and the Belgium-based Federation of European Heating, Ventilation and Air-Conditioning Associations.

• PCM will be among the topics at the 3rd International Conference: Innovative Materials and Smart Technologies for Environmental Safety. The conference will take place Sept. 27-29 in Latvia. The student conference includes a lecture titled "Heat Transfer Enhancement in Phase-Change Materials" by Dr. Gennady Ziskind, professor of mechanical engineering at Ben-Gurion University of the Negev, Israel. 

BASF, Cargill, Procter & Gamble and the Deutsche Gesellschaft für Internationale Zusammenarbeit GmbH have joined together in a development partnership to help establish a sustainable certified and transparent supply chain of coconut oil in the Philippines and Indonesia.  

• New from Zion Market Research: "Temperature Controlled Packaging Market: Global Industry Analysis, Size, Share, Growth, Trends, and Forecasts 2016–2024"

Bio-Based World News reports that the biobased sector of Finland's economy is now worth 60 billion euros. About 60 percent of the sector is rooted in the country's forest industry. 

Research roundup: INPATH-TES Ph.D. program; waste-to-energy plants; EnergyPlus-based building model; more

Ben Welter - Thursday, June 29, 2017

INPATH-TES: Innovative pathways to PhD research in thermal energy storage [Sustainable and Renewable Energy Engineering]

Application of high temperature phase change materials for improved efficiency in waste-to-energy plants [Waste Management]

Experimental investigation and EnergyPlus-based model prediction of thermal behavior of building containing phase change material [Journal of Building Engineering]

Experimental Analysis of Graphite Dispersed Salt Hydrates based Phase Change Materials to Determine Enhancement in their Thermophysical Properties [pdf] [Journal of Chemical and Pharmaceutical Sciences]

Use of phase change materials during compressed air expansion for isothermal CAES plants [35th UIT Heat Transfer Conference]

Simulation of Melting Process of a Phase Change Material (PCM) using ANSYS (Fluent) [pdf] [International Research Journal of Engineering and Technology]

Cellulose/Paraffin Composite Fibers for Thermal Energy Storage and Temperature Regulation [IUMRS International Conference in Asia]

Enhanced Specific Heat Capacity of Binary Chloride Salt by Dissolving Magnesium for High-temperature Thermal Energy Storage and Transfer [Journal of Materials Chemistry A]

Advanced Buildings Skins conference to feature 10+ sessions on PCM

Ben Welter - Monday, June 26, 2017

The agenda is taking shape for the 12th International Conference on Advanced Building Skins, to be held Oct. 2-3 in Bern, Switzerland. More than 250 speakers from 40 nations will give presentations.

The registration fee is 680 euros and includes the conference documentation as well as meals during both days. Participants who register by June 30 will receive a 20 percent discount.

Presentations related to phase change material, all conducted in English, include:

• “Ventilation units with PCM for double-skin BIPV façades,” Jakub Curpek, faculty of Civil Engineering STU in Bratislava, Slovakia

Building skins conference photo• “PCM melting temperature optimization for passive cooling and heating,” Alvaro de Gracia, University Rovira i Virgili, Spain

• “Thermal properties of a four-pane window filled with PCM,” Martin Zalesak, Tomas Bata University, Czech Republic

• “PCM-enhanced mortar for thermally activated building components,” Lorenzo Olivieri, Instituto de Ciencias de la Construcción Eduardo Torroja, Spain

• “Thermal performance of multifunctional façade contained PCM,” Romeu Vicente, Department of Civil Engineering, University of Aveiro, Portugal

• “Microcapsulated PCM and geopolymer concrete,” Vinh Duy Cao, Østfold University College, Norway

• “Implementing hysteresis and subcooling in simulation of PCM panels,” Craig Farnham, Osaka City University, Japan

• “Lightweight building envelopes with PCM,” Ricardo Almeida, CI&DETS - Polytechnic Institute of Viseu, Portugal

• “Thermal Performance of Phase Change Materials for the Building Skin Granular phase change material composites,” Xiangyu Li, Taiyuan University of Technology, China

• “Numerical investigation of a ventilated façade with PCM for heating purposes,” Josep Ramon Castro, University of Lleida, Spain

https://abs.green/program-2017/

Ice Bear 20 gets high marks for energy efficiency in third-party tests

Ben Welter - Friday, June 09, 2017

Ice Energy reports that its Ice Bear 20 home cooling and energy storage system has achieved a Seasonal Energy Efficiency Ratio (SEER) of 14.56 when operating like a conventional AC unit. Not bad. But the unit's Energy Efficiency Ratio when operating in ice cooling mode is a remarkable 150. According to CEO Mike Hopkins, that is "more than three times greater than the next best rating we could find, which is a geothermal system with an EER of 46." Many wall air conditioners now in use have an EER of around 10.

During off-peak hours, the Ice Bear stores cooling energy by freezing water in an insulated tank. During peak hours, the company says, the stored ice delivers up to four hours of cooling, reducing the typical peak load by 95 percent.

Large-scale manufacturing of the Ice Bear 20 is set to begin this summer to fulfill utility-sponsored programs in California and Massachusetts. Later this year the product will be made available directly to homeowners in California, Hawaii, Australia and the Middle East.

http://www.marketwired.com/press-release/ice-energys-home-cooling-energy-storage-system-achieves-world-record-energy-2220961.htm

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.

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."

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PCM briefing: SunDanzer awarded funding to develop field fridge; registration open for REACH training

Ben Welter - Friday, April 28, 2017

Paragon Space Development and partner SunDanzer of Tucson, Ariz., recently were awarded a research contract worth about $150,000 by the U.S. Special Operations Command to design a portable refrigerator to store blood and medications safely in the field. Components will include advanced compressors and phase change material.

New York State's "Reforming the Energy Vision" program is offering $15.5 million in funding for the research and demonstration of energy storage projects that support renewable energy, ease peak power grid demand and help customers save money. The REV initiative is an effort to pave the way for utilities, homeowners and businesses to adopt renewable energy technology more easily.

• A coalition of more than 300 businesses and organizations in Europe, including property firms CBRE and Colliers International, is calling for ambitious “national renovation strategies” that set out clear targets on transforming existing buildings in order to meet the targets laid out in the Paris Agreement.

Chemical Watch is offering a five-day REACH training course in four cities this year: London, Cambridge, Chicago and Vienna. The main focus of the course is to give participants a practical overview of the key tasks imposed by REACH, including strategies for meeting the registration deadline in 2018.

CHEMTREC is among the exhibitors at next week's Council on Safe Transportation of Hazardous Articles conference and expo in Scottsdale, Ariz.

• The American Chemistry Council's Chemistry Activity Barometer has posted strong year-over-year gains since Jan. 1, suggesting continued growth through the end of the year. "This index has been a good coincident [and] at times leading indicator of both industrial production and overall economic growth," writes industry observer Scott Grannis, "and it continues to point to rising industrial production and continued growth of the U.S. economy."

• Thermal risk expert EkkoSense's survey of 128 U.K. data centers found that 66 percent of installed cooling equipment "is not actually delivering any active cooling benefits." EkkoSense cited poor airflow management and a failure to actively monitor and report rack temperatures. 

AkzoNobel has selected 20 finalists for its Imagine Chemistry initiative, launched earlier this year to help solve real-life chemistry-related challenges and to uncover sustainable opportunities for the company’s specialty chemicals business. The finalists will participate in a three-day event starting June 1 at AkzoNobel’s research facility in Deventer, Netherlands, where they will be supported by technical and business development experts to further develop their concepts.