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Title: Desiccant Enhanced Evaporative Air-Conditioning (DEVap): Evaluation of a New Concept in Ultra Efficient Air Conditioning

NREL has developed the novel concept of a desiccant enhanced evaporative air conditioner (DEVap) with the objective of combining the benefits of liquid desiccant and evaporative cooling technologies into an innovative 'cooling core.' Liquid desiccant technologies have extraordinary dehumidification potential, but require an efficient cooling sink. DEVap's thermodynamic potential overcomes many shortcomings of standard refrigeration-based direct expansion cooling. DEVap decouples cooling and dehumidification performance, which results in independent temperature and humidity control. The energy input is largely switched away from electricity to low-grade thermal energy that can be sourced from fuels such as natural gas, waste heat, solar, or biofuels.
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
1004010
Report Number(s):
NREL/TP-5500-49722
TRN: US201105%%1052
DOE Contract Number:
AC36-08GO28308
Resource Type:
Technical Report
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; AIR CONDITIONERS; AIR CONDITIONING; BIOFUELS; DESICCANTS; ELECTRICITY; EVALUATION; EVAPORATIVE COOLING; HUMIDITY CONTROL; NATURAL GAS; PERFORMANCE; THERMODYNAMICS; WASTE HEAT; EFFICIENCY DESICCANT ENHANCED EVAPORATIVE AIR CONDITIONER; DEVAP; LIQUID DESSICANT; EVAPORATIVE COOLING; DEHUMIDIFICATION; Buildings