Accession Number : AD1037953


Title :   LDDX: A High Efficiency Air Conditioner for DOD Buildings


Descriptive Note : Technical Report,01 Mar 2013,30 Jun 2017


Corporate Author : AIL Research Inc. Hopewell United States


Personal Author(s) : Lowenstein,Andrew ; Miller,Jeffrey A ; Hermans,Thomas


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1037953.pdf


Report Date : 01 Feb 2017


Pagination or Media Count : 93


Abstract : Conventional cooling systems are inefficient dehumidifiers, often supplying too much temperature reduction (i.e., sensible cooling) when supplying adequate dehumidification (i.e., latent cooling). Two approaches to more efficient indoor humidity control were field tested in this project. Both approaches integrated a liquid desiccant (LD) into a compressor-based DX air conditioner to more than double the dehumidification provided by the air conditioner. At AHRI A rating conditions, the LDDX prototypes that were tested at Picatinny Arsenal (3-ton) and Fort Belvoir (5-ton) supplied air at dewpoints of 46.5 F and 50 F, respectively. Both prototypes demonstrated the capability to adjust the Sensible Heat Ratio (SHR) of the supplied cooling by controlling their desiccant flows. The Fort Belvoir prototype was the more efficient of the two operating at an Energy Efficiency Ratio (EER) of 11.46 and SHR of 0.403.


Descriptors :   Cooling , Cooling and ventilating equipment , energy efficiency , energy conservation , humidity , department of defense , laboratory tests , BUILDINGS AND STRUCTURES


Subject Categories : Air Condition, Heating, Lighting & Ventilating
      Test Facilities, Equipment and Methods


Distribution Statement : APPROVED FOR PUBLIC RELEASE