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

Patent application: Thermal management device using phase change material

Ben Welter - Monday, June 04, 2018

U.S. patent application 20180149437 (applicant Boeing Co., Chicago, Ill.):

"A device manages thermal energy applied to a composite patch on a structure having a heat sink. The device includes an enclosure configured to be placed on the structure overlying the composite patch, and a phase change material within the enclosure for absorbing the thermal energy."

http://www.freepatentsonline.com/20180149437.pdf

Patent application: Method for controlling the release of heat by a temperature control unit

Ben Welter - Monday, June 04, 2018

U.S. patent application 20180147916 (applicant Thermo King Corp., Bloomington, Minn.):

"[An] HVAC circuit for a temperature control unit, the HVAC circuit comprising: a phase change material (PCM) reservoir; wherein the HVAC circuit is configured to operate in a heat storage mode, whereby heat generated by the temperature control unit for providing temperature control within the internal space is stored in the PCM reservoir, and wherein the HVAC circuit is configured to operate in a heat release mode, whereby the heat generated by the temperature control unit for providing temperature control within the internal space is released to an ambient environment outside of the internal space."

http://www.freepatentsonline.com/20180147916.pdf

Patent application: Compositions comprising PCM and methods of making the same

Ben Welter - Monday, June 04, 2018

U.S. patent application 20180148621 (applicant Phase Change Energy Solutions Inc., Asheboro, S.C.):

"In one aspect, compositions are described herein. In some embodiments, a composition comprises a phase change material, a hydrophobic sorption material, and a viscosity modifier. In some embodiments, a composition comprises a foam and a latent heat storage material dispersed in the foam, the latent heat storage material comprising a phase change material and a hydrophobic sorption material."

http://www.freepatentsonline.com/20180148621.pdf

Patent application: Self-warming insulation

Ben Welter - Wednesday, May 30, 2018

U.S. patent application 20180142383 (applicant PrimaLoft Inc., Latham, N.Y.):

"The invention provides an insulation material that includes exothermic fibers, heat capturing fibers capable of retaining heat, and synthetic fibers. The heat capturing fibers having a density of at least 1.17 g/cm3or 2.0 Dtex linear density. Also provided are articles comprising, and methods of making the inventive insulation material. ... In some embodiments, the heat capturing fibers are selected from fibers containing ceramic, fibers containing carbon, and fibers containing phase change material (PCM)."

http://www.freepatentsonline.com/20180142383.pdf

Patent application: Artificial turf system with energy management material

Ben Welter - Wednesday, May 30, 2018

Artificial turf patent drawing
U.S. patent application 20180142426 (inventors Reyad Sawafta and Jeffrey Bruner, Greensboro, N.C.):

"An artificial turf system comprising: an artificial turf mat [10]; and artificial turf fibers [60] disposed on a surface of the artificial turf mat, the artificial comprising at least one energy management material, wherein the at least one energy management material comprises a phase change material."

http://www.freepatentsonline.com/20180142426.pdf

Patent application: Cooling pillow with phase change material

Ben Welter - Tuesday, May 29, 2018

Werner cooling pillow patent drawingU.S. patent application 20180140116 (applicant Marc L. Werner, Plantation, Fla.):

"A cooling pillow generates a gust of cooled air when compressed. A solid, resilient, compressible foam block forms a core of the cooling pillow. A phase change material layer adhered to a surface of the foam block. Holes can be formed in the foam block to enhance the feel of the pillow and to improve the speed at which air is displaced when the cooling pillow is compressed."

http://www.freepatentsonline.com/20180140116.pdf

Patent application: Passive thermal system comprising heat pipe and PCM for use in space

Ben Welter - Thursday, May 24, 2018

WorldVu Satellites patent drawing
U.S. patent application 20180134416, (applicant WorldVu Satellites Ltd., Arlington, Va.):

"A passive thermal system for use in a satellite and other aerospace applications includes a container having a heat-pipe working fluid disposed in a first chamber and a Phase Change Material (PCM) disposed in a second chamber that substantially surrounds the first chamber. The first chamber contains a wick for transporting the heat-pipe working fluid. The exterior of the first chamber has fins, etc., that extend into the PCM for heat spreading and increased interface area."

http://www.freepatentsonline.com/20180134416.pdf

Patent application: Phase change heat storage-type electrical water heater

Ben Welter - Tuesday, May 22, 2018

U.S. patent application 20180135886 (applicant Pioneer Energy Co. Ltd., Suzhou, China):

"The utility model relates to a phase change heat storage-type electrical water heater, comprising a phase change heat storage device, wherein the phase change heat storage device comprises a housing; the housing is internally filled in with a phase change material; a heat exchange pipe is embedded in the phase change material; the heat exchange pipe has one end connected with a circulating medium inflow pipe and the other end connected with a circulating medium outflow pipe; the circulating medium inflow pipe and the circulating medium outflow pipe are externally connected with a circulating medium backflow pipe there-between; the circulating medium inflow pipe, the heat exchange pipe, the circulating medium outflow pipe and the circulating medium backflow pipe form a circulating system in which a circulating medium flow; the circulating medium backflow pipe is provided with a circulating pump, an electrical heater, a function switching valve and a heat exchanger in turn; and the heat exchanger is provided with a water inlet pipe for heating tap water and a water outlet pipe. Compared with the prior art, the phase change heat storage-type electrical water heater heats water for a long time, has a high yield of hot water, and is safe and reliable."

http://www.freepatentsonline.com/20180135886.pdf

Patent application: Electric vehicle powered by capacitive energy storage modules

Ben Welter - Wednesday, May 16, 2018

U.S. patent application 20180126857 (applicant: Capacitor Sciences Inc., Menlo Park, Calif.):

"The invention relates to a capacitor based energy storage module and an electric vehicle using the same. For providing an electric vehicle which can meet the requirements of long distance running and rapid acceleration at the same time, the electric vehicle of present invention comprising: An electric control unit controlling all operations of the electric vehicle; An energy storage unit having one or more energy devices based on meta-capacitor which provides needed electric energy of the electric vehicle; A DC-DC converter receiving control signal from said electric control unit to convert the energy from said energy storage unit then provide to motor; A motor converting the electric energy into mechanical energy to drive the wheels; Wheels are driven by the motor to make the electric vehicle run. ... [The] capacitive energy storage module may include a cooling mechanism in thermal contact with the capacitive energy storage device and/or the DC-voltage converter. Such a cooling mechanism may be, e.g., a passive cooling mechanism, an active cooling system using air, water, ethylene glycol as a coolant; phase-change material, or any combination thereof."

http://www.freepatentsonline.com/20180126857.pdf

Patent application: Method and system for battery protection

Ben Welter - Wednesday, May 16, 2018

Milwaukee battery pack patent drawingU.S. patent application 20180131036 (applicant Milwaukee Electric Tool Corp., Brookfield, Wis.):

"The present invention provides a system and method for battery protection. In one construction and in some aspects, the invention provides a system and method for monitoring the temperature of a battery. In another construction and in some aspects, the invention provides a system and method for transferring heat within a battery pack. In another construction and in some aspects, the invention provides a system and method for transferring heat within a battery pack via a phase change material [300]."

http://www.freepatentsonline.com/20180131036.pdf