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

Patent application: TES facility with heat storage and heat release functions

Ben Welter - Thursday, February 02, 2017

U.S. patent application 20170030656 (applicant SFI Electronics Technology Inc., Taiwan):

SFI patent drawing"A thermal energy storage facility for use in heat storage and heat release comprises a heat storage/release mechanism constituted by multiple heat storage/heat exchange units stacked up, each unit at least comprises a heat storage board having parallel grooves for loading phase-change material (PCM) therein and a heat exchange plate having micro-channel groups for heat transfer fluid (HTF) flowed through to exchange heat with the PCM; particularly two or more the thermal energy storage facilities can be worked together by combination in series or/and in parallel to input of thermal energy, absorption of thermal energy and both simultaneously from the PCM, and the thermal energy storage facility capably operating at a heat storage temperature higher than 1200° C. is suited for use in solar thermal power generation system to improve overall efficiency of solar thermal power to reach 35-40%."

http://www.freepatentsonline.com/20170030656.pdf

PCM briefing: Long-haul cyclists reach Myanmar; papers sought for symposium on waste heat

Ben Welter - Friday, January 27, 2017

Riccardo Rocchi and Chiara RicciardiRiccardo Rocchi and Chiara Ricciardi,  the Italian couple who began an 18,000-kilometer bike ride in June to raise awareness about diabetes, have reached Myanmar. Ricciardi has type 1 diabetes and needs a daily dose of insulin. She is using Pelican BioThermal's Credo ProMed pack to keep insulin at the right temperature. The pair topped the 10,000-kilometer mark this week. They've pedaled across 16 countries, averaging 44 km per day. "We just realized that maybe we forgot to make a postcard from Nepal," the pair said in a Facebook post from Myanmar. "We might consider to cycle back to do it." Their final destination is Singapore.

• Organizers of a one-day symposium at Brunei University on the efficient use of waste heat have issued a call for abstracts. The symposium, "Heat Recovery and Efficient Conversion and Utilisation of Waste Heat," will be held April 20, 2017. Abstracts must be submitted by Jan. 31.

Pelican BioThermal has completed a $1.65 million expansion of the manufacturing facilities at its U.S. headquarters in Plymouth, Minn. The company now has 70,000 square feet of manufacturing space in the Minneapolis suburb, up from 54,000 square feet. The expansion will support production of single-use temperature-controlled shippers in the United States.

Weise's Outlast Houston motorcycle jacket• New from Weise Motorcycle Clothing: The Outlast Houston, a fully armored waterproof jacket with a removable lining that features Outlast phase change material to regulate temperature. 

Serta is touting “breakthrough cooling technology” in the new version of its iComfort memory foam mattresses. Phase change material is embedded in the fabric and on the surface of the gel memory foam.

• The United Kingdom plans to spend £28 million ($35 million) on reducing the cost of energy storage, advancing demand side response technologies and improving energy efficiency measures for industry. Up to one-third of the money will be spent on a competition to reduce the cost of energy storage, including thermal storage.

• The EU-funded Heat4Cool research project is developing a novel retrofit planning tool to help retrofit companies, architects, manufacturers, building administrators and residents weigh the potential benefits of three main technologies: gas and solar thermally driven adsorption heat pumps; PV-assisted DC-powered heat pumps connected to advanced modular PCM heat and cold storage systems; and energy recovery from sewage water with high performance heat exchangers. You are invited to help in this effort by completing a five-minute survey online.

• A Florida startup is calling its PCM-infused TempPro fabric “a gamechanger for luxury lingerie.” Giapenta, which launched a Kickstarter campaign this week, uses the temperature-regulating fabric in its line of bras, panties and sleep masks. The campaign has already met its modest target of raising $25,000. I've contacted the company and hope to have technical details on TempPro in time for next week's newsletter..

Colorado's first certified passive house 'has gone well past expectations'

Ben Welter - Wednesday, January 04, 2017

Colorado's first certified International Passive House is nestled in the foothills of the Rocky Mountains north of Denver. The 1,200-square-foot MARTaK house, designed by architect and author Andrew Michler, is used primarily as an off-the-grid workspace. The structure has now been occupied continuously for six months. Has it met Michler's energy expectations?

MARTaK passive house photo by Andrew Michler"Yes," Michler says, "it's gone well past my expectations. ... We haven't turned on the heating system this year." 

A solar array shared with a neighboring home provides all electrical power and most of the heating, with a propane-powered hydronic system serving as backup. Passive House Planning Package software was used to find the most efficient mix of insulation, windows and shading. Natural, nontoxic and recycled materials are used throughout the house. 

Biobased phase change material with a melt point of 23º C is used to help even out temperature spikes. The PCM is contained in 500 square feet of ENRG Blankets made by Phase Change Energy Solutions. Most of the material is installed a south-facing interior wall. 

Is it possible to measure the PCM's impact on overall performance?

"That's the question that I haven't found anybody able to answer," Michler says. "It's more about experiential. It's hard to isolate the PCM performance. There's no good modeling software for this. ...

"Overheating has been the biggest issue with passive houses, and we're seeing some anecdotal success with PCMs. We had a really warm fall, and the PCM did seem to level out the interior temperature, leveling out at 78 degrees Fahrenheit."

Has Michler used PCM in other projects? "No, this is the first. I do have interest in trying it again."

http://www.archello.com/en/project/martak-passive-house

PCM briefing: Papers sought for thermal management conference; Ice Energy has eyes on Australia

Ben Welter - Friday, December 09, 2016

• Registration is open for the Advancements in Thermal Management conference, to be held in Denver Aug. 9-10, 2017. Organizers have issued a call for papers; the deadline for submitting an abstract is Feb. 17. Companies attending past conferences include Croda, Outlast Technologies, Phase Change Materials Ltd., Microtek LaboratoriesC-Therm Technologies and Entropy Solutions.

Ice Energy of Glendale, Calif., is looking for distributors in Australia to extend the reach of the company's ice-based energy storage systems. The Ice Bear and smaller Ice Cub store 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. 

• The use of phase change material in infant warmers (Little Lotus) and temperature-control fabrics (Outlast Technologies) is featured in NASA's Spinoff 2017. The annual report highlights technologies developed for the space program.

Tata Steel is integrating Energy Nest's thermal energy storage system into one of the steelmaker's plants in the Netherlands. The system captures waste heat in a special concrete and stores it for later use. 

A new technical report issued by the National Renewable Energy Laboratory examines the possibility of replacing fossil-fuel combustion in industry with small nuclear reactors, solar thermal and geothermal energy sources to reduce greenhouse gas emissions. "Phase change materials that exploit the relatively high energy involved in melting or freezing a material" are identified as among the thermal energy storage options critical to such a strategy.  

PCM briefing: Cone calorimeters, thermal effusivity and four new elements

Ben Welter - Tuesday, December 06, 2016

• Registration is open for "Cone Calorimeter: Quantifying Easily Flammability & Heat Release Rate," an online course offered by SpecialChem.com. The instructor is Richard Hull, professor of chemistry and fire science at the University of Central Lancashire. The course will be held at 10 a.m. EST on Dec. 8. The cost is $309 for three participants on a single connection.

C-Therm is promoting its TCi thermal conductivity analyzer as a tool to directly measure "thermal effusivity," a material's ability to exchange thermal energy with its surroundings. Sarah Ackermann, laboratory services manager at Thermal Analysis Labs, says direct measurement of a PCM's thermal effusivity is not subject to "errors associated with the assumption of constant density and thermal conductivity the way most of the DSC calculations are." 

Google has confirmed it will hit its target of offsetting 100 percent of the energy used at its data centers and offices with power from renewable sources in 2017. LinkedIn, meanwhile, has opened what it describes as its first “net zero energy” building at its campus in Sunnyvale, Calif.

• The International Union of Pure and Applied Chemistry has officially named four new super-heavy elements — nihonium (Nh), moscovium (Mc), tennessine (Ts), and oganesson (Og) — and added them to the periodic table. The lab-created elementw have atomic numbers of 113, 115, 117 and 118, respectively. 

PCM briefing: University of Nebraska installing 2nd TES system; Credo-packing cyclists reach India

Ben Welter - Monday, November 21, 2016

• The University of Nebraska has begun construction on its second thermal energy storage facility in Lincoln. The system will chill water at night and on weekends, when electricity costs are low. The water will be used to cool buildings during the day.

Italian couple cycling across India• Do you remember the Italian couple who began an 18,000-kilometer bike ride in June to raise awareness about diabetes? Chiara Ricciardi and Riccardo Rocchi reached India last week. Ricciardi has type 1 diabetes and requires a daily dose of insulin. She is using Pelican BioThermal's Credo ProMed pack to keep insulin at the right temperature. The pair have pedaled 7,130 kilometers so far, across 13 countries, averaging 49 km per day. Their final destination: Singapore.

• The Naval Post Graduate School’s Integrated Multi-Physics Renewable Energy Laboratory in Monterey, Calif., has integrated the CALMAC's ice-based energy storage technology into an on-site microgrid. The lab is testing and evaluating the integration of a variety of energy storage technologies with solar and wind power.

Boca International Ltd. has signed a $3.4 million contract with Differ Commercial Management Ltd. to supply and install BocaPCM-TES systems in Differ properties in Xiamen City, China. Boca says its salt-based aqueous system is similar to ice- and water-based TES systems but covers a wider range of temperatures, allowing for "even and controllable energy usage, drawing energy from the storage directly during peak hour, which ultimately reduces the operating costs."

Sunamp Ltd. has completed installation of its SunampPV heat batteries in more than a thousand homes at Castle Rock Edinvar, one of Scotland's largest housing associations. The company says the hybrid system will save households up to $370 a year each on their hot water and heating bills.

PCM briefing: Phase change material in concept motorcycle and automotive interiors

Ben Welter - Wednesday, August 10, 2016

Can-Am Spyder e-motorcycle• Bombardier Recreational Products of Canada has produced an electric version of its three-wheel Can-Am Spyder motorcycle. The concept vehicle is equipped with a 16 kWh battery and has a range of about 170 km (106 miles). Phase change material is used to cool the lithium-ion batteries. No word on whether a production model is planned.

Dr. Barbara Pause of Textile Testing & Innovation will be among the speakers at this year's Industrial Fabrics Association International Expo in Charlotte, N.C. The topic of her Oct. 18 presentation: "Taking the heat – thermal control of the automotive interior with phase change material."

CALMAC is applauding the Massachusetts Legislature for approving an "energy diversity" bill that promotes the use of renewable energy sources and energy storage technologies. The legislation, signed into law Monday by Gov. Charlie Baker, requires the state to seek long-term contracts for 1,600 megawatts of offshore wind power and 1,200 MW of hydropower. Its broad definition of energy storage includes distributed thermal energy storage such as CALMAC's IceBank system. "It is unrealistic to believe that renewable energy will align itself perfectly with the demand of the power grid and consumers without adding energy storage," said Mark McCracken, the company's CEO. "Massachusetts has taken great steps to create a more reliable, smarter grid to adapt to future needs.”

• Got a big tank to clean? You might want to contact CYC International of Singapore. The plant maintenance company has created a snake-like robot to clean tanks at oil refineries. CYC says use of the remote-controlled robot reduces the number of workers needed to clean a tank, lowering health and safety risks and improving productivity.

PCM briefing: U.S. companies flock to renewables; molten salts could transform mining process

Ben Welter - Wednesday, June 22, 2016

• Seventy-two percent of U.S.-based companies surveyed by PwC said they are actively pursuing renewable energy procurement, mainly wind and solar. 

• The University of South Australia has teamed up with Centrex Metals Limited to conduct research on higher-temperature molten salt. Centrex hopes to use the technology, which heats molten salt to 850º Celsius and higher, to convert potassium feldspar ore to potassium chloride fertilizer, using less water and energy than current processes.

• The American Chemistry Council says Toxic Substances Control Act, signed into law Wednesday by President Obama, will have "a meaningful impact on the economy and the marketplace." Up next: The Environmental Protection Agency begins work on implementing new rules

• In a guest blog post for Energy Storage News, Sunamp's business development manager writes about demonstrating the company's PCM/PV "heat battery" in Shenzhen, China, last month. Maurizio Zaglio says SunampPV is a great fit for the Chinese market, thanks to government incentives that have led to widespread use of PV panels. 

PCM briefing: Sustainable manufacturing good for bottom line; Ice Bear among technologies highlighted at White House

Ben Welter - Tuesday, June 21, 2016

Adopting sustainable manufacturing processes can help companies boost their bottom line, improve their reputation and become more competitive, writes Doug Kramer, president and CEO of spray foam product maker Lapolla Industries

• The Global Cold Chain Forum is accepting nominations for the 2016 Cold Chain Excellence Awards. The four categories are Best Temperature Controlled Logistics Project; Most Innovative New Cold Chain Technology of the Year; Most Sustainable Temperature-Controlled Project; and Most Effective Risk Assessment, Evaluation & Mitigation for Transportation. Nominations are due by July 29, 2016.

Nike is teaming up with MIT's Climate CoLab to speed the development of innovative materials and shrink the company's supply-chain footprint.

Ice Energy's new Ice Bear residential cooling system was among the technologies highlighted at a White House summit on renewable energy and storage last week. 

• Puma's new PCM-infused jerseys made the wrong kind of impression at the European Championships this week. Four jerseys worn by Swiss players in a match against France tore apart when tugged on by opponents. Puma later apologized, blaming the problem on a bad batch of material damaged during production. It does not appear that the problem involved the phase change material used in strategically placed tape inside the jersey.

Pluss Advanced Technologies' Celsure cold chain shipper won the innovation of the year award at the Cold Chain Strategy Summit in Mumbai last week.

PCM briefing: Ice Bear 20 to be installed at CEO's California ranch; $7.8 trillion to be invested in renewable power in next 25 years

Ben Welter - Monday, June 13, 2016

• About $7.8 trillion will be invested in renewable power worldwide over the next 25 years, according to Bloomberg New Energy Finance. The report, New Energy Outlook 2016, projects that wind, solar, hydro and other renewable energy sources will generate 70 percent of Europe’s power in 2040, up from 32 percent in 2015. In the United States, 44 percent of power will come from renewables in 2040, up from 14 percent in 2015.

Ice Bear 20Ice Energy CEO Mike Hopkins reports on LinkedIn: "I'm excited to be getting an Ice Bear 20 for my ranch in Santa Barbara. It will be our first installation in California. Here's a picture of it all wrapped up and ready for shipping from our factory in Hammondsport, New York. It will have a stopover at our facility in Riverside and then up to my place." The Ice Bear 20, a smaller version of the company's commercial thermal energy storage system, is designed for the residential market. The ice-based system has a 265-gallon tank and a thermal storage capacity of 240,000 BTUs. It is 44 inches wide, 40 inches high and 75 inches deep.

Cold Chain Technologies, a manufacturer and distributor of temperature-controlled packaging solutions, has promoted Richard M. Formato to the new position of principal technologist. Formata led the commercial development of the company's line of phase change materials and, more recently, gelled PCMs.