Phase change system for temperature control
First Claim
1. A system for maintaining a payload within a temperature range, between a minimum temperature and a maximum temperature, the system comprising:
- (a) a first material having a first phase change temperature of approximately the minimum temperature; and
(b) a second material having a second phase change temperature of approximately the maximum temperature.
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Abstract
A system and method for maintaining a temperature sensitive payload within a target temperature range, between a minimum temperature and a maximum temperature. Heat transfer devices are provided, having reservoirs for separately containing a first material and a second material, the materials having distinct and separate phase change temperatures which approximately bracket the target temperature range. The latent heats of transformation related to the respective phase changes of the first and second materials resist heating or cooling of the payload above or below the target temperature range.
159 Citations
35 Claims
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1. A system for maintaining a payload within a temperature range, between a minimum temperature and a maximum temperature, the system comprising:
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(a) a first material having a first phase change temperature of approximately the minimum temperature; and (b) a second material having a second phase change temperature of approximately the maximum temperature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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- 21. A heat transfer device comprising a quantity of a first material having a first phase change temperature, and a quantity of a second material having a second phase change temperature, wherein the second phase change temperature is greater than the first phase change temperature.
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27. A method for controlling the temperature of a payload within a temperature range, between a minimum temperature and a maximum temperature, the method comprising:
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(a) placing a first material having a first phase change temperature of approximately the minimum temperature in thermal contact with the payload; and (b) placing a second material having a second phase change temperature of approximately the maximum temperature in thermal contact with the payload. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35)
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Specification