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.

RECENT POSTS

TAGS

ARCHIVE

PCM briefing: PureTemp joins RSPO; Reda's new PCM fabric on display in Milan

Ben Welter - Monday, February 18, 2019

PureTemp LLC has joined the Roundtable for Sustainable Palm Oil as an associate member. The nonprofit organization, which has more than 4,000 members worldwide, promotes the growth and use of sustainable oil palm products. In November, RSPO adopted stricter standards for certified sustainable palm oil, including a total ban on deforestation by its members.

Reda Group's new Active Phase temperature-control fabric was on display at the Milan fabric trade show earlier this month. The material uses phase change material to keep body temperature constant when ambient temperature fluctuates. Reda says the material features enhanced breathability and softness and is "easy to clean, even in water."

University of Maryland fabric•  University of Maryland researchers have created a temperature-control fabric that does not rely on phase change material. The fabric changes its insulating properties in response to the environment. In warm and humid conditions, the fabric allows radiant heat to pass through. When conditions become cooler and drier, the fabric reduces the heat that escapes. Two types of synthetic materials in the fabric — one that absorbs water and another other that repels it — are coated with carbon nanotubes. The fibers warp and relax in response to changing humidity, opening and closing pores in the fabric. 

• In interviews with Advanced Textiles Source, four entrepreneurs were asked: What do you wish you had known early on when you were first dealing with intellectual property law and patent issues? “Get feedback on why you need a patent,” said Jeremy Wall, founder and CEO of smart-clothing startup Lumenus. “Where else could you spend $20,000?” Said Matt Kolmes, CEO of VOLT Smart Yarns: “Even if you are on a tight budget, file that Provisional application immediately before you show your idea to anyone, or talk about it with anyone."

• The Marie Sklodowska-Curie Action program is seeking applicants for a one- to two-year research fellowship at the Oslo Metropolitan University. The European Union-funded fellowship will focus on the energy-performance aspects of phase change material in buildings. "In this collaboration," OsloMet says, "we intend to gain our understanding and explore about the micro-structural aspect to relate the macro-scale behavior at continuum level." The application deadline is March 7.

Patent application: Mattress for improved sleep

Ben Welter - Thursday, February 07, 2019

U.S. patent application 20190038040 (applicant Technogel Italia S.r.l., Pozzoleone, Italy):

"Mattresses and mattress toppers having an upper layer including a high heat capacity material are disclosed. The mattress is configured to reduce a core body temperature of the body supported thereon, and thus induce improved sleep, measurable as an increase in the time spent in slow wave sleep relative to standard mattresses having lower heat capacities. The high heat capacity of the mattress may be attributable to the geometry and nature of the support material and optional additives, including polymer gels and phase change materials. Methods for improving sleep quality and uses of the high heat capacity mattresses to improve sleep quality are also disclosed."

http://www.freepatentsonline.com/20190038040.pdf

Patent application: Cooling fabric with PCM coating

Ben Welter - Tuesday, January 22, 2019

U.S. patent application 20190017200 (applicant Bedgear LLC, Farmingdale, N.Y.):

Bedgear patent drawing"A three-layer circular knitted jacquard fabric includes a first layer having a yarn made from a first material. A second layer of the fabric includes a yarn made from a second material. A third layer of the fabric includes a yarn made from a third material. At least one of the materials includes ultra-high weight molecular polyethylene. The second layer is positioned between the first layer and the third layer such that the second layer provides loft between the first layer and the third layer. ... In some embodiments, a top layer, such as, for example, the first layer can be coated with a phase change material and a bottom layer, such as, for example, the third layer can be coated with a phase change material. It is envisioned that the first layer and/or the third layer can be soaked with a phase change material and/or can be infused with a phase change material."

http://www.freepatentsonline.com/20190017200.pdf

PCM briefing: New Outlast materials on display at Heimtextil; agenda set for Jan. 24 workshop at Nottingham

Ben Welter - Saturday, January 12, 2019

Outlast recycled polysterNew Outlast products based on recycled materials were on display at the Heimtextil show in Frankfurt, Germany, this week. "In the new Outlast products," the company said, "temperature-regulating technology is applied to base material (knitted fabric or nonwoven) which is produced from 100% recycled polyester textiles or PET bottles and therefore meets the Global Recycle Standard (GRS). Further products that use renewable materials for other components of the technology are planned to expand the portfolio in the near future."

Tempur-Pedic says the latest version of its Breeze mattress line features a new "PureCool+ breathable phase change technology [that] absorbs excess heat and recharges faster to help the sleeper feel cooler when falling asleep."

Eindhoven University of Technology is seeking candidates for a Ph.D. position in nanoporous materials for thermal energy storage

Chemical & Engineering News is seeking candidates for a six-month science-writing editorial fellowship for 2019.

• A proposal to use microencapsulated phase change material to help motor vehicles run smoothly in extreme cold has been honored by Azerbaijan's Ministry of Economy as the best youth startup project of the year. A team of chemical engineering students from Baku Higher Oil School developed the concept.

The agenda has been posted for the Workshop on Energy Efficient Buildings & Thermal Energy Storage Systems to be held Jan. 24 at the University of Nottingham in the United Kingdom. Topics include "Enhanced geothermal borehole heat exchangers with PCMs," "Innovative composite smart materials for heating, cooling and humidity control in buildings" and "Demonstration of the TESSe2b system in three demo sites." The free, all-day workshop is part of the European Union-supported project TESSe2b.

•  From LinkedIn: "Pluss Advanced Technologies Pvt. Ltd. is expanding its vendor development team for its PCM and polymers business. Candidates with prior experience in purchase or vendor management will be preferred, others will be considered too. Want to understand more about the opportunity? Please write to Ruchika Garg at jobs@pluss.co.in."  

• The world's first grid-scale pumped heat energy storage is now in operation at Newcastle University. "The system consists of two containers – a cold store and a hot store – filled with gravel and an inert gas," Utility Week reports. "They are connected via a reversible heat pump/engine. When surplus energy needs to be stored, gas is withdrawn from the cold store and compressed using an electrically-powered pump, thereby raising its temperature. The gas is injected into the hot store where the heat is transferred to the gravel. It is then withdrawn from the hot store, expanded to further lower its temperature and returned to the cold store. To recover the stored energy, the process is reversed."

Dominic Hyde, vice president of Credo on Demand at Pelican BioThermal, said the rental program increased its temperature-controlled container fleet size by 90 and increased revenue by 90 percent in 2018.

PCM briefing: RSPO orders ban on deforestation; ESA calls on Congress to clarify tax credit

Ben Welter - Friday, November 30, 2018

• The Roundtable on Sustainable Palm Oil has ordered a total ban on deforestation by its members, amid growing pressure from both companies and consumers. Members voted overwhelmingly in favor of the ban at the group’s annual general assembly in Malaysia Nov. 15. The ban is now part of the RSPO core standards, which member companies must comply with for their products to be certified “sustainable.”

Sunamp Ltd. reports that it has received $2.8 million in new seed funding. The latest round of investors includes Scottish Investment Bank, Equity Gap, PAR Equity and the Japanese energy utility Osaka Gas. Sunamp, based in Edinburgh, Scotland, recently signed a memo of understanding with Trina Solar to develop an integrated solution combining Sunamp heat batteries with heat pumps manufactured at Trina's new factory in Changzhou, China.

• From Andreas Hauer, head of ZAE Bayern's Energy Storage Division; via LinkedIn: "The Progress Report for the working group 'Material and Component Development for Thermal Energy Storage' (http://task58.iea-shc.org/) has been approved by the Executive Committee of #IEA #EnergyStorage programme. One more year for international collaboration and inspiring discussions among material experts and applied scientist on advanced thermal energy storage!" Task 58 Annex 33 deals with advanced materials for latent and chemical thermal energy storage, PCMs and thermochemical materials.

• Registration is open for an all-day Workshop on Energy Efficient Buildings & Thermal Energy Storage Systems to be held Jan. 24 at the University of Nottingham in the United Kingdom. The free event "will present and discuss current innovations within the field of energy storage and efficiency in the built environment. Joining together industry and academia for discussions focussing on integrated solutions for residential, commercial and public buildings using renewable sources. Results will be presented from the ongoing TESSe2b European project, as well as results from other projects in the field of energy efficiency, generation & storage in buildings." 

AQUACHILL Cool Coating, a water-based phase change material coating for bedding materials and other cooling applications, is among six Dow technologies to make R&D Magazine's 2018 R&D 100 list. The awards recognize "revolutionary technologies" introduced during the past year. 

• The RAL Quality Association PCM's next meeting has been set for April 2, 2019, in Düsseldorf, Germany.

• A coalition led by the Energy Storage Association is calling on Congress to clarify that energy storage systems qualify for the Investment Tax Credit. The ESA said bipartisan legislation in the House and Senate would "ensure a level playing field" for storage resources. 

• The U.S. Department of Energy's National Renewable Energy Laboratory has been awarded nearly $2.8 million to develop a system for grid electricity storage and power generation. The system includes a high-temperature charging device, low-cost thermal energy storage modules, a high-performance heat exchanger, and a closed-loop Brayton cycle turbine. 

Ecozen Solutions of India has won Rabobank’s inaugural Food Loss Challenge Asia. The award recognizes innovative ag-tech start-ups working to solve farm-to-market food loss problems. Ecozen, one of five finalists, won both the Jury’s Prize of $15,000 and the Audience’s Prize of $5,000. Ecozen makes portable solar cold rooms for small farms, using a thermal storage unit that can store power for more than 36 hours in case of cloudy or rainy weather.

Energy Storage News reports that Lumenion's new storage technology, now being trialled in Berlin by Vattenfall, can store energy in steel structures for up to 48 hours. The technology is designed to provide low-cost energy storage for combined heat and power applications, using steel as the medium. The steel modules store energy thermally at up to 650 degrees Celsius.

Patent application: Mattress containing microencapsulated phase change material

Ben Welter - Monday, October 29, 2018

U.S. patent application 20180279796 (applicant Milliken & Co., Spartanburg, S.C.):

"A mattress containing a core section, a high loft non-woven layer at least partially covering a first side of the core section and containing a plurality of heat and flame resistant fibers, bulking fibers, and binder fibers, a ticking layer at least partially covering the high loft non-woven layer and containing a textile layer, a pattern coated layer. The pattern coated layer may be printed on the high loft non-woven layer, the ticking layer, or any layer between the high loft non-woven layer and the ticking layer. The pattern coated layer contains a blend of microencapsulated phase change material (PCM) and a binder, wherein the PCM is fully encapsulated by the binder."

http://www.freepatentsonline.com/20180279796.pdf

Patent application: Enhanced thermally conductive cushioning foams

Ben Welter - Monday, October 22, 2018

U.S. patent application 20180298264 (applicant Peterson Chemical Technology LLC, Austin, Texas):

"Methods and combinations for making and using one or more thermally conductive cellular foam layers and other structures comprising flexible cellular foam and metallic material particulates, and said thermally-conductive cellular foam layers may be located on, under, or in cushioning foams and mattresses or placed between on, under, within, or between other layering substrates, columns, and other structures to increase the overall cooling capability of the composite. The thermally conductive foam may be used in mattresses, pillows, bedding products, seat cushions, medical cushioning foams, pet beds, and similar materials used in bedding and comfort products."

http://www.freepatentsonline.com/20180298264.pdf

Patent application: Body support cushion with multiple layers of phase change material

Ben Welter - Sunday, September 23, 2018

U.S. patent application 20180263377 (applicant Tempur-Pedic Management LLC, Lexington, Ky.):

"A body support cushion, e.g., mattress, has multiple foam layers, including a viscoelastic foam layer and a reticulated foam layer, and an outer cover. At least one of the foam layers and the outer cover each includes phase change material having latent heat properties that provide two intervals of dermal cooling."

http://www.freepatentsonline.com/20180263377.pdf

Patent application: Cooling beach blanket

Ben Welter - Thursday, September 06, 2018

U.S. patent application 20180249849 (inventor Christopher Wilkinson, Brooklyn, N.Y.):

Beach cooling blanket patent drawing"A personal cooling system for controlling personal body temperature at the beach comprises a first layer having a first edge region defining a size and a shape of the first layer, the first layer comprising a cooling gel pack, wherein the gel pack has an outer surface and a plurality of compartments for storing a temperature-controlling ingredient therein; a second layer having a second edge region defining a size and a shape of the second layer; and an outside bag, to an inside surface of the outside bag the first layer and the second layer are attached. The second layer in the system further comprises a liquid dispenser that is embedded in the mesh material of the second layer. The actions of the cooling system and the dispenser can be controlled by a remote controller."

http://www.freepatentsonline.com/20180249849.pdf

PCM briefing: PureTemp blog is finalist for industry award; ACC urges Trump to remove all chemicals from tariffs list

Ben Welter - Friday, July 27, 2018

• The Phase Change Matters blog is a finalist in the 2018 PR News Platinum and Agency Elite Awards. Other finalists in the blog category include Shopfloor (National Association of Manufacturers), The Blonde Abroad (R&R Partners) and Transform (Microsoft Inc.). Winners will be announced at a luncheon in New York City on Sept. 21.

Phase Change Material Products Ltd. and Fraunhofer Institute for Solar Energy Systems ISE will be among the exhibitors at Chillventa 2018. The trade show for refrigeration, air conditioning, ventilation and heat pumps will be held Oct. 16-18 in Nuremberg, Germany. 

FLIR One Pro LTFlir Systems has released the One Pro LT thermal image camera for the iPhone. The new model has many of the core features of the popular One Pro model but at a lower price: $299.

Ed Brzytwa, the American Chemistry Council's director of international trade, has urged the Trump administration to remove all chemicals and plastics products, valued at $2.2 billion, from a list of Chinese goods subject to possible increased tariffs. In testimony before officials from the Office of the U.S. Trade Representative this week, Brzytwa said higher tariffs on those products “has the potential to harm America’s manufacturing renaissance and is counterproductive to U.S. economic interests.” 

• The program for the 13th Conference on Advanced Building Skins has been posted. The event will be held Oct. 1-2 in Bern, Switzerland. Last year's conference included at least 10 presentations on phase change material. "Phase change" appears just twice in this year's program. A presentation by Jose Manuel Montes Donaire of AKT II Envelopes, London, "Thermal tuning of envelopes and its use as a parametric design tool," will address the topic of energy buffering with phase change materials. A presentation by Annie Shaw of Manchester School of Art on the architectural potential of knitted textiles will explore "three-dimensional seamlessness and stretch, phase-change form-finding and form-fixing."

• Pillow talk: Phase change material is no longer enough. Manufacturers like Tulo and Blu Sleep are turning to titanium particles and essential oils in an effort to stand out it in the crowded pillow market.

Pelican BioThermal's newest temperature-control bulk shipper, the CoolPall Flex, is now available for purchase. The CoolPall Flex, unveiled in Milan in March, has a capacity range of 140 to 767 liters. Options include standard insulation or vacuum insulated panels and water-based or PCM coolants in single or double coolant configurations.

Sonoco ThermoSafe and United Cargo announced a global partnership agreement for the leasing of the PharmaPort 360 temperature-controlled bulk shipping container. The agreement enables pharmaceutical shippers to lease PharmaPort 360 containers directly from United Cargo.