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Title: Heat dissipation systems with hygroscopic working fluid

Abstract

A heat dissipation system apparatus and method of operation using hygroscopic working fluid for use in a wide variety of environments for absorbed water in the hygroscopic working fluid to be released to minimize water consumption in the heat dissipation system apparatus for effective cooling in environments having little available water for use in cooling systems. The system comprises a low-volatility, hygroscopic working fluid to reject thermal energy directly to ambient air. The low-volatility and hygroscopic nature of the working fluid prevents complete evaporation of the fluid and a net consumption of water for cooling, and direct-contact heat exchange allows for the creation of large interfacial surface areas for effective heat transfer. Specific methods of operation prevent the crystallization of the desiccant from the hygrosopic working fluid under various environmental conditions.

Inventors:
Issue Date:
Research Org.:
Energy & Environmental Research Center, Grand Forks, ND (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735292
Patent Number(s):
10782036
Application Number:
15/617,619
Assignee:
Energy & Environmental Research Center Foundation (Grand Forks, ND)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28C - HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
F - MECHANICAL ENGINEERING F28 - HEAT EXCHANGE IN GENERAL F28B - STEAM OR VAPOUR CONDENSERS
DOE Contract Number:  
FC26-08NT43291
Resource Type:
Patent
Resource Relation:
Patent File Date: 06/08/2017
Country of Publication:
United States
Language:
English

Citation Formats

Martin, Christopher L. Heat dissipation systems with hygroscopic working fluid. United States: N. p., 2020. Web.
Martin, Christopher L. Heat dissipation systems with hygroscopic working fluid. United States.
Martin, Christopher L. Tue . "Heat dissipation systems with hygroscopic working fluid". United States. https://www.osti.gov/servlets/purl/1735292.
@article{osti_1735292,
title = {Heat dissipation systems with hygroscopic working fluid},
author = {Martin, Christopher L.},
abstractNote = {A heat dissipation system apparatus and method of operation using hygroscopic working fluid for use in a wide variety of environments for absorbed water in the hygroscopic working fluid to be released to minimize water consumption in the heat dissipation system apparatus for effective cooling in environments having little available water for use in cooling systems. The system comprises a low-volatility, hygroscopic working fluid to reject thermal energy directly to ambient air. The low-volatility and hygroscopic nature of the working fluid prevents complete evaporation of the fluid and a net consumption of water for cooling, and direct-contact heat exchange allows for the creation of large interfacial surface areas for effective heat transfer. Specific methods of operation prevent the crystallization of the desiccant from the hygrosopic working fluid under various environmental conditions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {9}
}

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