Thermal insulation system using evaporative cooling

A technology of vapor cooling and isolation layer, which is applied in the direction of heat insulation protection pipeline, heat transfer modification, heat exchange equipment, etc., which can solve the problems of water evaporation and other problems

Inactive Publication Date: 2017-08-01
RED LEAF RESOURCES
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Problems solved by technology

Heat from the body of the heated material causes moisture to evaporate

Method used

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  • Thermal insulation system using evaporative cooling
  • Thermal insulation system using evaporative cooling
  • Thermal insulation system using evaporative cooling

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example

[0078] Granular dry mineral material has a specific heat of approximately 0.25 Btu / lb-°F. Over a range of temperatures, water has a specific heat of about 1.0 Btu / lb-°F and a latent heat of vaporization of water of 970 Btu / lb (at boiling point). Thus, heating dry material from 70°F to 200°F (a difference of 130 degrees) requires only 32.5 Btu / lb (130 x 0.25), while heating and boiling water requires 1100 Btu / lb (130 x 1.0+970). If the material is wetted with water to the extent of 10% by weight, the heat required to raise the temperature to 200°F and dry the material is 139.25 Btu / lb (0.9 x 130 x 0.25 + 0.1 x 1100). Therefore, the heat required to raise the temperature of the wet material (10% water) to the boiling point of water and evaporate the water is more than 4 times that required for the dry material. This results in a significant increase in isolation when the heat source is of limited duration and volume.

[0079] For the example described above, the dry barrier ha...

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Abstract

A thermal insulation system (100) can include a body of heated material (110) at an elevated temperature. A layer of porous insulating material (120) can be placed adjacent to and in fluid communication with the body of heated material (110). The insulating layer (120) can contain distributed liquid water in an amount sufficient to cool the insulating layer (120) through evaporative vapor flow toward the body of heated material (110). The amount of water can be sufficient to provide water vapor for inhibiting the diffusion and adsorption of hydrocarbons from the body of heated material (110). The insulating layer (120) can include a continuous vapor phase. A heat sink material (130) at a lower temperature can be placed adjacent to the insulating layer (120) and opposite from the body of heated material (110).

Description

[0001] Related Patent Applications [0002] This application claims priority to U.S. Provisional Application No. 62 / 062,328, entitled "Thermal Insulation System Using Evaporative Cooling," filed October 10, 2014, which is incorporated herein by reference . technical field [0003] The present invention relates to systems and methods for isolating heated materials, such as hydrocarbon-containing materials producing hydrocarbons, while preventing hydrocarbon entrapment. Accordingly, the present invention relates to the fields of hydrocarbon production and heat transfer. Background technique [0004] A number of processes have been developed to produce hydrocarbons from various hydrocarbon-bearing materials, such as oil shale and tar sands. Historically, the main research and commercial processes have included above-ground stills and in-situ processes. Recently, encapsulated impoundments have been developed for oil recovery from crushed oil shale ( technology). These imp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/04
CPCE21B43/24F16L59/02F28F13/00
Inventor J·邦杰
Owner RED LEAF RESOURCES
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