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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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PureTemp 23 shows no corrosive effect on five metals tested in study

Ben Welter - Friday, December 26, 2014

PureTemp 23, one of 19 PureTemp phase change materials recently certified as 100 percent biobased by the U.S. Department of Agriculture, has been shown to have no corrosive effect on metals tested in a study by researchers from the University of Barcelona and the University of Lleida in Spain. The five metals tested were aluminum, copper, carbon steel, stainless steel 304 or stainless steel 316.

http://www.puretemp.com/stories/puretemp-23-shows-no-corrosive-effect-on-five-metals-tested-in-study

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Research roundup: PCMs and indoor environments; spherical PCMs; silica aerogels; thermodynamic modeling

Ben Welter - Friday, December 26, 2014

  • Effect of phase change materials on indoor thermal environment under different weather conditions and over a long time [Applied Energy]

  • Prediction of Spherical Phase Change Material Temperature Using RBFNN Model [Applied Mechanics and Materials]

  • Alkylated Phase Change Composites for Thermal Energy Storage Based on Surface-Modified Silica Aerogels [Journal of Materials Chemistry A]

  • Simulation of the thermal and energy behavior of a composite material containing encapsulated PCM: Influence of the thermodynamical modeling [Applied Energy] 

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    Research roundup: Residential PCM system, concentrated solar, PAN/SA-LA/ZMS, heat pumps

    Ben Welter - Tuesday, December 23, 2014






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    2 experts on thermal energy storage join Entropy's board of advisors

    Ben Welter - Monday, December 22, 2014

    Luisa Cabeza and Mohammed Farid, two internationally renowned authorities on phase change materials and thermal energy storage, have joined Entropy Solutions’ advisory board.

    Dr. Cabeza, a professor at the University of Lleida, Spain, is the director of GREA Innovació Concurrent, a research group that is developing thermal energy storage concepts and systems for solar water tanks, HVAC systems, industrial applications and concentrated solar power plants. She has co-written more than 100 papers and published several books on phase change material and thermal energy storage.

    Dr. Farid, a professor of chemical and materials engineering at the University of Auckland, New Zealand, is a leading authority on thermal energy storage and phase change materials. He has been working since 1980 on the development of PCMs, their encapsulation and applications, from buildings and cold storage to the cooling of batteries and electronic devices.

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    PCMs, the gift that keeps on giving (Part 3)

    Ben Welter - Monday, December 22, 2014

    Here's the last in our series highlighting PCM-related gift ideas this holiday season:

  • Isaora’s Phase Change Insulated Shirt comes in black and navy. A layer of PCM microcapsules lies beneath an ultralight nylon shell. The PCMs absorb body heat when the wearer is too warm and release it when the wearer is too cold. 

    • Lava Lunch boxhttp://www.isaora.com/pages/the-pcm-insulated-shirt

  • The Lava Lunch box, right, can keep your food hot for up to five hours, depending on ambient temperatures. The secret: PCM-infused, microwaveable Lava Rocks engineered to maintain temperatures between 120 and 150 degrees Fahrenheit.

    • http://www.amazon.com/Lava-Lunch-Heated-keeps-Lemon-Lime/dp/B00GSJFB5G

  • Chillin' Brew cooler packs use phase change material to keep beer at “beer cave” temperature of 28F much longer than the same volume of ice.

    • http://www.homedepot.com/p/Arctic-Ice-Chillin-Brew-Extra-Large-Cooler-Pack-28-3F-Degree-1211/205125071?N=5yc1vZc452Z1z0u6es

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    Research roundup: Efficacy of PCMs in mortars, Trombe wall, supercooling suppression

    Ben Welter - Friday, December 19, 2014

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    Amsterdam is home to world's most-sustainable building

    Ben Welter - Thursday, December 18, 2014

    The Edge, AmsterdamThe Edge, Deloitte’s new headquarters in Amsterdam, has won BREEAM certification as the world’s most-sustainable building.

    The Building Research Establishment Environmental Assessment Methodology, licensed for use by independent, trained assessors, rates buildings on criteria such as energy and water use, waste management, transportation links and materials sourcing. The Edge earned the highest BREEAM score yet recorded, 98.36 percent. One Embankment Place in London held the previous record, 96.31.

    The 430,000-square-foot building was designed by PLP Architecture of London. Its energy-efficient design includes passive temperature control, Ethernet-powered LED lighting, 44,000 square feet of rooftop solar panels and an aquifer thermal energy storage unit 500 feet below ground that generates all energy required for heating and cooling.

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    PCMs, the gift that keeps on giving (Part 2)

    Ben Welter - Wednesday, December 17, 2014

    Here are a few more PCM-related gift ideas:Ministry of Supply's Apollo dress shirt

  • High-tech clothier Ministry of Supply offers PCM-infused dress shirts, sweaters and even a scarf. It's the same technology used in spacesuits to regulate an astronaut's body temperature: Phase change material absorbs heat when the wearer is overheated, then releases it when the wearer is cold.

    • http://ministryofsupply.com/collections/shop

  • This one would be difficult to gift-wrap and wouldn't fit under most trees. But it looks pretty comfy. The memory foam in Serta's iComfort mattress -- or "Sleep System," as the manufacturer calls it -- is blended with gel beads that contain phase change material.

    • http://www.dealbeds.com/serta-icomfort-insight-everfeel-mattress

  • The Chilly Dog® Cool Vest is designed for use by police and military dogs. But any dog out for a walk on a hot humid day deserves to chill out. 

    • http://store.coolvest.com/rpcm-chillydog-dog-cooling-vest-black 

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