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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 Foundation, Grand Forks, ND (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568199
Patent Number(s):
10260761
Application Number:
13/953,332
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: 07/29/2013
Country of Publication:
United States
Language:
English

Citation Formats

Martin, Christopher L. Heat dissipation systems with hygroscopic working fluid. United States: N. p., 2019. 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/1568199.
@article{osti_1568199,
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 = {2019},
month = {4}
}

Works referenced in this record:

Method of evaporative cooling of a fluid and apparatus therefor
patent, February 2005


Heat-source System and Method for Controlling the Same
patent-application, November 2011


Process for removing NO.sub.x and SO.sub.x from exhaust gas
patent, April 1993


Cooling Air
patent, October 1950


Electronic device cooling system
patent, July 2012


System and Method for Managing Water Content in a Fluid
patent-application, December 2008


Process for recovering heat from stack or flue gas
patent, July 1982


Heat Dissipation Systems with Hygroscopic Working Fluid
patent-application, February 2016


Dehumidifying System
patent, November 1941


Heat and mass exchanger
patent, September 2007


Hygroscopic cooling tower for waste water disposal
patent-application, July 2018


Heat Dissipation System with Hygroscopic Working Fluid
patent-application, November 2011


High Efficiency Dehumidifiers and Combined Dehumidifying/Air-conditioning Systems
patent-application, December 2004


Cooling System
patent, May 1972


High efficiency air conditioner
patent, January 1980


Dehumidifier/Air-conditioning System
patent-application, June 2004


Multi-stage Hybrid Evaporative Cooling System
patent-application, May 2007


Portable liquid desiccant dehumidifier
patent, October 2000


Humidity Control Device
patent-application, May 2011


Heat Exchanger for Cooling and for a Pre-cooler for Turbine Intake Air Conditioning
patent-application, October 2001


Hybrid vapor-compression/liquid desiccant air conditioner
patent, January 1991


Process for purifying flue gases
patent, October 1978


Air pre-cooler method and apparatus
patent, March 1993


Heat Dissipation Systems with Hygroscopic Working Fluid
patent-application, September 2017


Hydroponic Rooftop Cooling Systems
patent-application, March 2005