Ice modification removal and prevention
First Claim
Patent Images
1. A system for melting interfacial ice 132, comprising:
- a first electrode 110, 412, 510, 610, 710, 810a second electrode 114, 414, 514, 614, 714, 814, the first electrode and the second electrode defining an interelectrode space 116 between the first electrode and the second electrode, the first electrode and the second electrode defining an interelectrode distance that separates the first electrode and the second electrode;
an AC power source 120, 520, 974 for providing an AC voltage across the first and second electrodes having a frequency greater than 100 Hz.
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Abstract
An alternating electric field is applied to ice (530) to generate a resistive AC having a frequency greater than 1000 Hz in interfacial ice at interface (554). A first electrode (510) and a second electrode (514) proximate to the interface are separated by an electrical insulator (512). An AC power source (520) provides a voltage of about 10 to 500 volts across the electrodes to create the alternating electric field. A portion of the capacitive AC associated with the alternating electric field is present in the interfacial ice as conductivity (resistive) AC, which causes dielectric loss heating in the interfacial ice.
69 Citations
33 Claims
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1. A system for melting interfacial ice 132, comprising:
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a first electrode 110, 412, 510, 610, 710, 810 a second electrode 114, 414, 514, 614, 714, 814, the first electrode and the second electrode defining an interelectrode space 116 between the first electrode and the second electrode, the first electrode and the second electrode defining an interelectrode distance that separates the first electrode and the second electrode; an AC power source 120, 520, 974 for providing an AC voltage across the first and second electrodes having a frequency greater than 100 Hz. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A freezer system 2700 for melting ice in a freezer, comprising:
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a freezer including a housing 2701; a first movable electrode 2702; a second electrode 2704, the first movable electrode 2702 movable for forming an interelectrode space 2706 to accommodate a freezer package between the first movable electrode and the second electrode; and an AC power source 2710 for providing an AC voltage across the first and second electrodes with a frequency not less than about 1000 Hz. - View Dependent Claims (17)
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18. A system 2300 for melting ice, comprising:
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a first electrode 2302; a second electrode 2304, the first electrode and the second electrode defining an interelectrode space 2306 between the first electrode and the second electrode; a conductive layer 2364 located in the interelectrode space and proximate to the ice, the conductive layer being electrically insulated from the first and second electrodes and from ice; an AC power source 2310 for providing an AC voltage across the first and second electrodes with a frequency not less than about 1000 Hz. - View Dependent Claims (19, 20, 21)
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22. A system of melting and preventing ice using a high-frequency electric field, comprising:
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a first electrode; a second electrode, the first electrode and the second electrode separated by an interelectrode distance in a range of about from 100 μ
m to 2 cm;an interelectrode space defined by the first electrode and the second electrode and located between the first electrode and the second electrode; a power source for providing an AC voltage across the first electrode and the second electrode with a frequency not less than 100 Hz. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification