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Evaporative cooling system and method using selective transfer film

A transfer film and selective technology, applied in chemical instruments and methods, evaporators/condensers, separation methods, etc., can solve problems such as reducing water content and limiting thermodynamic efficiency, and achieve low energy consumption, low emissions, and compact equipment Effect

Active Publication Date: 2021-11-02
DAIS ANALYTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the use of sensible heat transfer on walls separating the refrigerant tends to require localized cooling below the saturation temperature of the humid air to reduce its water content through condensation, a requirement that limits the possible thermodynamics of the process efficiency

Method used

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  • Evaporative cooling system and method using selective transfer film
  • Evaporative cooling system and method using selective transfer film
  • Evaporative cooling system and method using selective transfer film

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Embodiment Construction

[0019] For example, in US Pat. Nos. 8,470,071 B2 and 9,283,518 B2, various methods of conditioning process fluids (typically, but not limited to air) by heat and / or mass movement through selective membranes are described. The present invention provides additional concepts that can provide important advantages to users.

[0020] It is known in the art to provide a separate heat exchanger to draw heat from the process fluid into the working fluid which is then circulated to a separate evaporative cooling assembly. In this arrangement, however, the working fluid warms as heat enters and gradually loses the temperature differential needed to drive heat across the separation material. Typically, this split approach requires a high circulation rate of the working fluid to ensure it exits the heat exchanger and is quickly replaced by a cooler fluid, limiting temperature rise. In turn, the power input to the circulation pump is a significant additional load on the system.

[0021] F...

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PUM

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Abstract

Disclosed herein are compact film evaporative coolers, methods of cooling process fluids (eg, air) using compact film evaporative coolers, and air conditioning systems and methods including compact film evaporative coolers. A compact film evaporative cooler as disclosed herein can advantageously reduce or eliminate the power consumption required to circulate a working fluid.

Description

[0001] This application claims the benefit of US Provisional Application 62 / 238,433, filed October 7, 2015, the entire contents of which are incorporated herein by reference. [0002] Statement of Government Rights [0003] This invention was made with Government support under Contract No. DE-AR0000371 awarded by the Advanced Research Projects Agency for Energy (ARPA-E), Department of Energy. The government has certain rights in this invention. Background technique [0004] The vast majority of heat pump and refrigeration systems today utilize variations of the vapor-compression thermodynamic cycle. This approach varies the pressure of an inert working fluid to control its associated saturation temperature, which allows the transfer of sensible heat through the metal surface as the fluid changes phase. The technology is mature and has evolved considerably, but there are still some limitations. For example, many of the most efficient refrigerants have adverse effects on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/74B01D53/78B01D53/81B01D53/26B01D53/72B01D53/22F25B41/00F25B41/20F28F1/00F25D17/06F01K25/06
CPCB01D53/22B01D53/26B01D53/72B01D53/74B01D53/78B01D53/81F01K25/06F25D17/06F25B39/02F24F5/0035F25B2339/047F28F13/003F28D1/05366F28D21/0015F28D2021/0068B01D53/229B01D53/268F25B39/00
Inventor 布赖恩·约翰逊莱西·阿利夫加里·罗森堡
Owner DAIS ANALYTIC