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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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PCM-based system cuts energy use by 27% in frozen-foods warehouse

Ben Welter - Monday, April 24, 2017

Viking Cold Solutions systemFrozen Gourmet Inc., a wholesale distributor of premium ice cream and other frozen foods, says a PCM-based thermal battery system has cut energy consumption by more than 27 percent in the company’s freezer warehouse in Redding, Calif.

The Viking Cold Solutions system, installed at the end of 2016, features hundreds of plastic bottles filled with a salt hydrate solution. The bottles are suspended from the ceiling of the 7,900-square-foot warehouse. The phase change material solidifies when the warehouse chillers are running. The PCM absorbs heat as it melts, allowing the chillers to run less frequently and still keep the warehouse within a few degrees of the target temperature, 14.8º Celsius. 

Shifting demand to off-peak hours can result in significant savings on electricity in California, where daytime demand charges are common. The Viking system also includes intelligent controls and sensors to optimize energy use and alert managers to temperature abnormalities, equipment failure and power outages.

"We searched for a year to find the right technology to reduce our energy costs and decided to purchase the Viking Cold TES system after seeing the capability and flexibility the system provides," said Bill Kohn, CEO of Frozen Gourmet. "The reduction in energy consumption has improved our bottom line and the real-time monitoring has been invaluable in helping us recognize and address equipment issues before expensive problems arise."

http://finance.yahoo.com/news/frozen-gourmet-installs-viking-cold-130000052.html

Research roundup: Solar PCM storage wall system; novel caprylic acid/nonanoic acid mix; double glazing units; more

Ben Welter - Monday, April 17, 2017

Experimental study of a modified solar phase change material storage wall system [Energy]

A novel binary mixture of caprylic acid/nonanoic acid as latent heat storage for air conditioning and cooling [Energy and Buildings]

A General Method for Retrieving Thermal Deformation Properties of Microencapsulated Phase Change Materials or Other Particulate Inclusions in Cementitious Composites [Materials and Design]

Effect of PCM thickness and melting temperature on thermal performance of double glazing units [Journal of Building Engineering]

Ice Energy to deploy up to 1,800 commercial-scale ice batteries in Orange County

Ben Welter - Wednesday, April 12, 2017

Ice Energy has partnered with NRG Energy to install up to 1,800 behind-the-meter ice batteries – the world's largest such deployment – in qualifying commercial and industrial buildings in Orange County, Calif.

Ice Bear 30The Ice Bear 30s will provide a total of up to 25.6 MW of peak storage capacity to Southern California Edison under 20-year power purchase agreements.

"Our distributed ice batteries will solve local grid issues in Orange County while reducing CO2 emissions by up to 200,000 tons over the life of the project," said Mike Hopkins, CEO of Ice Energy. "Orange County commercial and industrial customers that qualify for the program will get free use of Ice Bears, lowering electric bills and further extending the life of their HVAC systems."

The first dozen or so Ice Bears will be installed at commercial and industrial sites in Tustin, with completion expected in June.

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.

More information on the Ice Bear and how to order through NRG Energy is available at nrg.com/icebear or by calling 1-844-235-3182.

http://www.marketwired.com/press-release/ice-energy-nrg-energy-announce-start-worlds-largest-ice-bear-energy-storage-2209311.htm

PCM briefing: Trump budget 'just not correct' on ARPA-E; Croda's Kevin Bozec among panelists at Plant Based Summit

Ben Welter - Thursday, March 30, 2017

Ice Energy and Horizon Solar Power have completed the installation of a solar-plus-ice-battery-storage system at Palm Springs Cultural Center in California’s Coachella Valley. The system, which replaced an aging HVAC system, comprises 73.6 kW of solar panels and five Ice Bear 30s.

• The Trump administration's budget blueprint is "just not correct" about the function of the Advanced Research Projects Agency-Energy, its former director said this week. The blueprint eliminates all ARPA-E funding "because the private sector is better positioned to finance disruptive energy research and development and to commercialize innovative technologies." But agency was created just for stages of research and development that the private sector does not finance, said Ellen Williams, the agency's director from 2014 until January 2017.

Dow Chemical and DuPont won the blessing of the European Union for their $130 billion merger by agreeing to sell substantial assets, including key research and development activities.

• The global PCM market is expected to see a compound annual growth rate of 19.9 percent over the next five years, according to a new market research from Mordor Intelligence, "Global Phase Change Material Market-Segmented by Material Type, Product Type, Application, and Geography-Trends and Forecasts (2017-2022)." 

Kevin Bozec, marketing coordinator at Croda, is among the presenters at the Plant Based Summit in Lille, France, April 25-27. He will discuss Crodatherm phase change materials in a session on new materials. To register for the conference and trade show, visit www.plantbasedsummit.com.

GSA Business offers a closer look at the leadership transition at Alexium International Group Ltd., the company that took its flame-retardant material and PCM-based cooling fabrics to commercial markets in 2016. 

Research roundup: PCM compatibility with metals, plastic; desiccant packet for cooling vest; paraffin viscosity; more

Ben Welter - Thursday, March 23, 2017

Investigation of the corrosive properties of phase change materials in contact with metals and plastic [Renewable Energy]

Preparation and thermal properties of SAT-CMC-DSP/EG composite as phase change material [Applied Thermal Engineering]

A numerical study on the usage of phase change material (PCM) to prolong compressor off period in a beverage cooler [Energy Conversion and Management]

Abilities and limitations of thermal mass activation for thermal comfort, peak shifting and shaving: A review [Building and Environment]

Corrosion effect of phase change materials in solar thermal energy storage application [Renewable and Sustainable Energy Reviews]

A review for phase change materials (PCMs) in solar absorption refrigeration systems [Renewable and Sustainable Energy Reviews]

Sodium nitrate – Diatomite composite materials for thermal energy storage [Solar Energy]

Innovative PCM-desiccant packet to provide dry microclimate and improve performance of cooling vest in hot environment [Energy Conversion and Management]

Heat transfer study of phase change materials with graphene nano particle for thermal energy storage [Solar Energy]

Energy performance evaluation of heat-storage gypsum board with hybrid SSPCM composite [Journal of Industrial and Engineering Chemistry]

Empirical equation to estimate viscosity of paraffin [Journal of Energy Storage]

Yearly energy performance of a photovoltaic-phase change material (PV-PCM) system in hot climate [Solar Energy]

PCM briefing: BASF expands R&D presence in South Asia; Viessmann, Aldi Nord team up on ice-based TES system

Ben Welter - Friday, March 10, 2017

BASF Group opened its Innovation Campus Asia Pacific in Mumbai this week, dramatically expanding its research and development presence in India. BASF expects to invest 50 million euros in the campus, making it the company's largest R&D investment in South Asia. BASF Venture Capital, meanwhile, is investing in the U.S. renewable chemistry firm P2 Science

• The heating and cooling technology company Viessmann and the food retailer Aldi Nord have developed a new cooling and heating system that employs propane heat pumps, photovoltaics and ice storage. The ESyCool system, designed to reduce energy costs by 15 percent and reduce life-cycle costs, will be installed in 10 Aldi Nord stores in Germany. 

• Registration is open for the 2017 New Product Development and Innovation in the Chemical Industry summit, to be held April 26-27 in Berlin. Speakers include Stephan Altmann, head of innovation excellence at BASF, and Olivier Magnin, technology director for Europe, the Middle East and Africa at DuPont Performance Materials.

Research roundup: Microcapsule-based composites; porous cellulose acetate films; underfloor heating; more

Ben Welter - Tuesday, March 07, 2017

Experimental study on effective thermal conductivity of microcapsules based phase change composites [International Journal of Heat and Mass Transfer]

Multi-objective RSM Optimization of Fin Assisted Latent Heat Thermal Energy Storage System Based on Solidification Process of Phase Change Material in Presence of Copper Nanoparticles [Applied Thermal Engineering]

Buildings cooling: An experimental study of phase change materials storage for low-energy buildings [2017 International Conference on Communication, Control, Computing and Electronics Engineering ]

Aluminum Mesh and Phase-Change Characteristics of n-Octadecane for Thermal Energy Storage [Journal of Thermophysics and Heat Transfer]

Analytical analysis of latent heat thermal energy storage model for solar thermal power plants [14th International Bhurban Conference on Applied Sciences and Technology]

Analysis of graphene-encapsulated polymer microcapsules with superior thermal and storage stability behavior [Polymer Degradation and Stability]

Experimental and numerical investigations on the thermal performance of building plane containing CaCl2·6H2O/expanded graphite composite phase change material [Applied Energy]

Fabrication and characterization of porous cellulose acetate films by breath figure incorporated with capric acid as form-stable phase change materials for storing/retrieving thermal energy [Fibers and Polymers]

In-situ preparation of a shape stable phase change material [Renewable Energy]

Proposal of a PCM Underfloor Heating System Using a Web Construction Method [pdf] [International Journal of Polymer Science]

PCM briefing: Sasol introduces Parafol 17; CIC Energigune seeks scientific director for energy storage group

Ben Welter - Tuesday, March 07, 2017

• In a LinkedIn post, the chemicals giant Sasol has announced the development of a new phase change material, Parafol 17. The product has a melting range of 20-22º Celsius. Potential applications include building/construction and the transportation of temperature-sensitive goods. The company says the new PCM is commercially available, but it is not yet listed on the company's websites.

CIC Energigune is seeking candidates for the position of scientific director in its energy storage group, which is focused on the research of systems that can store heat from medium to high temperatures. The research center, based in Spain's Basque Country, also has a leadership opening in the TES group's device, prototype and testing area. 

• Want to learn how your company can include sustainability in its business goals? Stanford University's Center for Professional Development is offering a free webinar, "The Pursuit of Sustainability," at 11 a.m Pacific time March 14. 

GreenCE is offering an online course titled "Inspiration Green: Biomimicry, Climate & Culture." The course, sponsored by T. Stern Sustainability of Seattle, will cover strategies used in high-performance buildings to reduce environmental impact and earn LEED credits. The cost: $35.

• New from Transparency Market Research: "1-Tetradecanol Market - Global Industry Analysis and Forecast 2024"

Sonoco ThermoSafe has posted the results of an industry survey on the "current and future state" of clinical trial supplies. Half of those surveyed said they planned to adopt new supply chain technology within the next two years.

PCM briefing: Sunamp, University of Glasgow partner on Chinese power plant project; Reaxys PhD Prize entries due March 13

Ben Welter - Monday, March 06, 2017

Sunamp Ltd. is teaming up with Glasgow University and partners in China to boost the performance of Organic Rankine Cycle power plants that use renewable heat sources for distributed heat and power supply in China. The joint project has been awarded 2 million pounds in funding from the China-UK Research and Innovation Bridges program. Sunamp's PCM heat batteries will be integrated with ORC plants to store heat energy for power generation when the sun doesn’t shine. 

• Submissions for the 2017 Reaxys PhD Prize close on March 13. The international competition is open to Ph.D. students or recent graduates conducting innovative research in synthetic chemistry. Forty-five finalists will present their research at the Reaxys Prize Symposium in Shanghai in October. Three winners will be selected, with each earning a $2,000 award.

• In an interview with Energy Storage Report, Ice Energy CEO Mike Hopkins says his company is looking to tie up partnerships with solar installers in regions where net metering is being phased out.

• Global chemicals production started the first quarter on a strong note, according to the American Chemistry Council. The council’s Global Chemical Production Regional Index showed that that headline global production rose 0.6 percent in January after a similar gain in December.

• Packaging giant Sonoco has again made Fortune magazine's list of most-admired companies, ranking second in the packaging/containers category. 

Alexium International has appointed Dirk Van Hyning as CEO, effective June 30. He will replace Nicholas Clark, who remains on the board and assumes a new role as executive director strategy. Former U.S. congresswoman Karen Thurman has joined Alexium's board as a non-executive director.  

Carnegie Mellon researchers have developed a thermally conductive rubber material that they’ve nicknamed “thubber.” The new material, which can stretch more than six times its initial length, is an electrically insulating composite. Potential applications include soft robotics and athletic wear.

• New from Wise Guy Reports: "Global Thermal Energy Storage (TES) Market Research Report 2017"

Research roundup: 2 promising PCM candidates; calcium carbonate shell; thermocapillary effects; more

Ben Welter - Tuesday, February 21, 2017

Thermal properties characterization of two promising phase change material candidates [Journal of Thermal Analysis and Calorimetry]

Self-assembly synthesis and properties of microencapsulated n-tetradecane phase change materials with calcium carbonate shell for cold energy storage [ACS Sustainable Chemistry and Engineering]

Thermal Analysis of a Thermal Energy Storage Unit to Enhance a Workshop Heating System Driven by Industrial Residual Water [Energies]

Effect of a low-cost parabolic reflector on the charging efficiency of an evacuated tube collector/storage system with a PCM [Solar Energy]

Numerical study on free-surface jet impingement cooling with nanoencapsulated phase-change material slurry and nanofluid [International Journal of Heat and Mass Transfer]

Heat transfer performance and melting dynamic of a phase change material subjected to thermocapillary effects [International Journal of Heat and Mass Transfer]

Evaluation and optimization of melting performance for a latent heat thermal energy storage unit partially filled with porous media [Applied Energy]

Carbon nanotube/paraffin/montmorillonite composite phase change material for thermal energy storage [Solar Energy]

Synthesis and thermal properties of novel solid-solid phase change materials with comb-polyurethane block copolymer structure for thermal energy storage [Thermochimica Acta]

Synthesis and Properties of Polyurethane/Coal-Derived Carbon Foam Phase Change Composites for Thermal Energy Storage [Acta Physico-Chimica Sinica]