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Title: Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification

Abstract

An indirect evaporative cooler for cooling inlet supply air from a first temperature to a second, lower temperature using a stream of liquid coolant and a stream of exhaust or purge air. The cooler includes a first flow channel for inlet supply air and a second flow channel adjacent the first for exhaust air. The first and second flow channels are defined in part by sheets of a membrane permeable to water vapor such that mass is transferred as a vapor through the membrane from the inlet supply air to a contained liquid desiccant for dehumidification and also to the exhaust air as heat is transferred from the inlet supply air to the liquid coolant. A separation wall divides the liquid desiccant and the coolant but allows heat to be transferred from the supply air to the coolant which releases water vapor to the counter or cross flowing exhaust air.

Inventors:
;
Issue Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1143660
Patent Number(s):
8,769,971
Application Number:
12/864,071
Assignee:
Alliance for Sustainable Energy, LLC (Golden, CO)
DOE Contract Number:  
AC36-99GO10337
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Kozubal, Eric Joseph, and Slayzak, Steven Joseph. Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification. United States: N. p., 2014. Web.
Kozubal, Eric Joseph, & Slayzak, Steven Joseph. Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification. United States.
Kozubal, Eric Joseph, and Slayzak, Steven Joseph. Tue . "Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification". United States. https://www.osti.gov/servlets/purl/1143660.
@article{osti_1143660,
title = {Indirect evaporative cooler using membrane-contained, liquid desiccant for dehumidification},
author = {Kozubal, Eric Joseph and Slayzak, Steven Joseph},
abstractNote = {An indirect evaporative cooler for cooling inlet supply air from a first temperature to a second, lower temperature using a stream of liquid coolant and a stream of exhaust or purge air. The cooler includes a first flow channel for inlet supply air and a second flow channel adjacent the first for exhaust air. The first and second flow channels are defined in part by sheets of a membrane permeable to water vapor such that mass is transferred as a vapor through the membrane from the inlet supply air to a contained liquid desiccant for dehumidification and also to the exhaust air as heat is transferred from the inlet supply air to the liquid coolant. A separation wall divides the liquid desiccant and the coolant but allows heat to be transferred from the supply air to the coolant which releases water vapor to the counter or cross flowing exhaust air.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {7}
}

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Works referenced in this record:

A Novel Air Conditioning System
journal, October 2000

  • El-Dessouky, H. T.; Ettouney, H. M.; Bouhamra, W.
  • Chemical Engineering Research and Design, Vol. 78, Issue 7
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Liquid desiccant based two-stage evaporative cooling system using reverse osmosis (RO) process for regeneration
journal, October 2007


A desiccant-enhanced evaporative air conditioner: Numerical model and experiments
journal, January 2013