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Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control
Today's air-conditioning (AC) technology is primarily based on direct expansion (DX) or the refrigeration process. It is so prevalent that it is considered a necessity for the majority of buildings throughout the United States. DX AC has been optimized for cost and thermodynamic efficiency, bot...
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creator | Dean, Jesse Kozubal, Eric Herrmann, Lesley Miller, Jeff Lowenstein, Andy Barker, Greg Slayzak, Steve |
description | Today's air-conditioning (AC) technology is primarily based on direct expansion (DX) or the refrigeration process. It is so prevalent that it is considered a necessity for the majority of buildings throughout the United States. DX AC has been optimized for cost and thermodynamic efficiency, both of which are nearing their practical limits. In hot, humid climates, conventional AC units expend excess energy to sensibly overcool the air for dehumidification. As a result, excess energy must be used to reheat the air to a more comfortable supply temperature (overcool/reheat cycle). The use of desiccant-based AC systems decouples the latent and sensible loads of an airstream, enabling higher efficiency cooling and improved thermal comfort conditions. The primary objective of this project was to demonstrate the capabilities of a new high-performance, liquid-desiccant dedicated outdoor air system (DOAS) to enhance cooling efficiency and comfort in humid climates while substantially reducing electric peak demand at Tyndall Air Force Base (AFB), Florida. The new type of LDAC invented by AIL Research (AILR) has higher thermal efficiency than any other LDAC on the market today. The technology was recently invented, and only six active units were operating at the time of this report. This was the first solar-powered demonstration of the technology. The goal of the project was to quantify energy and water consumption, solar energy utilization, and cost savings relative to DX air conditioners. The LDAC system that was installed at Tyndall AFB was a pre-commercial technology, and given that it was the first solar-powered demonstration, a fundamental objective of the demonstration was to evaluate system performance and use the lessons learned to develop design/manufacturing guidance for future commercial LDAC systems..
Energy and Water Projects Demonstration Plan SI-0822. Prepared in collaboration with Tyndall Air Force Base, AIL Research, and Mountain Energy Partnership. The original document contains color images. |
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Energy and Water Projects Demonstration Plan SI-0822. Prepared in collaboration with Tyndall Air Force Base, AIL Research, and Mountain Energy Partnership. The original document contains color images.</description><language>eng</language><subject>Air Condition, Heating, Lighting & Ventilating ; AIR CONDITIONING EQUIPMENT ; DEHUMIDIFIERS ; DEMONSTRATIONS ; DESICCANTS ; EFFICIENCY ; ENERGY CONSUMPTION ; HUMIDITY CONTROL ; LDAC(LIQUID DESICCANT AIR CONDITIONER) ; LESSONS LEARNED ; PROTOTYPES ; REFRIGERANTS ; SOLAR ENERGY ; TYNDALL AIR FORCE BASE (FLORIDA)</subject><creationdate>2012</creationdate><rights>Approved for public release; distribution is unlimited.</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,780,885,27565,27566</link.rule.ids><linktorsrc>$$Uhttps://apps.dtic.mil/sti/citations/ADA607986$$EView_record_in_DTIC$$FView_record_in_$$GDTIC$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>Dean, Jesse</creatorcontrib><creatorcontrib>Kozubal, Eric</creatorcontrib><creatorcontrib>Herrmann, Lesley</creatorcontrib><creatorcontrib>Miller, Jeff</creatorcontrib><creatorcontrib>Lowenstein, Andy</creatorcontrib><creatorcontrib>Barker, Greg</creatorcontrib><creatorcontrib>Slayzak, Steve</creatorcontrib><creatorcontrib>NATIONAL RENEWABLE ENERGY LAB GOLDEN CO</creatorcontrib><title>Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control</title><description>Today's air-conditioning (AC) technology is primarily based on direct expansion (DX) or the refrigeration process. It is so prevalent that it is considered a necessity for the majority of buildings throughout the United States. DX AC has been optimized for cost and thermodynamic efficiency, both of which are nearing their practical limits. In hot, humid climates, conventional AC units expend excess energy to sensibly overcool the air for dehumidification. As a result, excess energy must be used to reheat the air to a more comfortable supply temperature (overcool/reheat cycle). The use of desiccant-based AC systems decouples the latent and sensible loads of an airstream, enabling higher efficiency cooling and improved thermal comfort conditions. The primary objective of this project was to demonstrate the capabilities of a new high-performance, liquid-desiccant dedicated outdoor air system (DOAS) to enhance cooling efficiency and comfort in humid climates while substantially reducing electric peak demand at Tyndall Air Force Base (AFB), Florida. The new type of LDAC invented by AIL Research (AILR) has higher thermal efficiency than any other LDAC on the market today. The technology was recently invented, and only six active units were operating at the time of this report. This was the first solar-powered demonstration of the technology. The goal of the project was to quantify energy and water consumption, solar energy utilization, and cost savings relative to DX air conditioners. The LDAC system that was installed at Tyndall AFB was a pre-commercial technology, and given that it was the first solar-powered demonstration, a fundamental objective of the demonstration was to evaluate system performance and use the lessons learned to develop design/manufacturing guidance for future commercial LDAC systems..
Energy and Water Projects Demonstration Plan SI-0822. Prepared in collaboration with Tyndall Air Force Base, AIL Research, and Mountain Energy Partnership. The original document contains color images.</description><subject>Air Condition, Heating, Lighting & Ventilating</subject><subject>AIR CONDITIONING EQUIPMENT</subject><subject>DEHUMIDIFIERS</subject><subject>DEMONSTRATIONS</subject><subject>DESICCANTS</subject><subject>EFFICIENCY</subject><subject>ENERGY CONSUMPTION</subject><subject>HUMIDITY CONTROL</subject><subject>LDAC(LIQUID DESICCANT AIR CONDITIONER)</subject><subject>LESSONS LEARNED</subject><subject>PROTOTYPES</subject><subject>REFRIGERANTS</subject><subject>SOLAR ENERGY</subject><subject>TYNDALL AIR FORCE BASE (FLORIDA)</subject><fulltext>true</fulltext><rsrctype>report</rsrctype><creationdate>2012</creationdate><recordtype>report</recordtype><sourceid>1RU</sourceid><recordid>eNqFirEKwjAQQLs4iPoHDvcBBgSh2jG0lQ4dBLuXkFzhIObwcqX49yq4O70H762L4c7RibnxgoLhAD09ZwqmwUzeu6RgSaDmFEiJEwpMLNDzYtqIXoU86Qu6-UHhK59RheO2WE0uZtz9uCn213aoOxOU_JiVEupoG1sez9WlPP3JbyD0NaE</recordid><startdate>201211</startdate><enddate>201211</enddate><creator>Dean, Jesse</creator><creator>Kozubal, Eric</creator><creator>Herrmann, Lesley</creator><creator>Miller, Jeff</creator><creator>Lowenstein, Andy</creator><creator>Barker, Greg</creator><creator>Slayzak, Steve</creator><scope>1RU</scope><scope>BHM</scope></search><sort><creationdate>201211</creationdate><title>Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control</title><author>Dean, Jesse ; Kozubal, Eric ; Herrmann, Lesley ; Miller, Jeff ; Lowenstein, Andy ; Barker, Greg ; Slayzak, Steve</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-dtic_stinet_ADA6079863</frbrgroupid><rsrctype>reports</rsrctype><prefilter>reports</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Air Condition, Heating, Lighting & Ventilating</topic><topic>AIR CONDITIONING EQUIPMENT</topic><topic>DEHUMIDIFIERS</topic><topic>DEMONSTRATIONS</topic><topic>DESICCANTS</topic><topic>EFFICIENCY</topic><topic>ENERGY CONSUMPTION</topic><topic>HUMIDITY CONTROL</topic><topic>LDAC(LIQUID DESICCANT AIR CONDITIONER)</topic><topic>LESSONS LEARNED</topic><topic>PROTOTYPES</topic><topic>REFRIGERANTS</topic><topic>SOLAR ENERGY</topic><topic>TYNDALL AIR FORCE BASE (FLORIDA)</topic><toplevel>online_resources</toplevel><creatorcontrib>Dean, Jesse</creatorcontrib><creatorcontrib>Kozubal, Eric</creatorcontrib><creatorcontrib>Herrmann, Lesley</creatorcontrib><creatorcontrib>Miller, Jeff</creatorcontrib><creatorcontrib>Lowenstein, Andy</creatorcontrib><creatorcontrib>Barker, Greg</creatorcontrib><creatorcontrib>Slayzak, Steve</creatorcontrib><creatorcontrib>NATIONAL RENEWABLE ENERGY LAB GOLDEN CO</creatorcontrib><collection>DTIC Technical Reports</collection><collection>DTIC STINET</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Dean, Jesse</au><au>Kozubal, Eric</au><au>Herrmann, Lesley</au><au>Miller, Jeff</au><au>Lowenstein, Andy</au><au>Barker, Greg</au><au>Slayzak, Steve</au><aucorp>NATIONAL RENEWABLE ENERGY LAB GOLDEN CO</aucorp><format>book</format><genre>unknown</genre><ristype>RPRT</ristype><btitle>Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control</btitle><date>2012-11</date><risdate>2012</risdate><abstract>Today's air-conditioning (AC) technology is primarily based on direct expansion (DX) or the refrigeration process. It is so prevalent that it is considered a necessity for the majority of buildings throughout the United States. DX AC has been optimized for cost and thermodynamic efficiency, both of which are nearing their practical limits. In hot, humid climates, conventional AC units expend excess energy to sensibly overcool the air for dehumidification. As a result, excess energy must be used to reheat the air to a more comfortable supply temperature (overcool/reheat cycle). The use of desiccant-based AC systems decouples the latent and sensible loads of an airstream, enabling higher efficiency cooling and improved thermal comfort conditions. The primary objective of this project was to demonstrate the capabilities of a new high-performance, liquid-desiccant dedicated outdoor air system (DOAS) to enhance cooling efficiency and comfort in humid climates while substantially reducing electric peak demand at Tyndall Air Force Base (AFB), Florida. The new type of LDAC invented by AIL Research (AILR) has higher thermal efficiency than any other LDAC on the market today. The technology was recently invented, and only six active units were operating at the time of this report. This was the first solar-powered demonstration of the technology. The goal of the project was to quantify energy and water consumption, solar energy utilization, and cost savings relative to DX air conditioners. The LDAC system that was installed at Tyndall AFB was a pre-commercial technology, and given that it was the first solar-powered demonstration, a fundamental objective of the demonstration was to evaluate system performance and use the lessons learned to develop design/manufacturing guidance for future commercial LDAC systems..
Energy and Water Projects Demonstration Plan SI-0822. Prepared in collaboration with Tyndall Air Force Base, AIL Research, and Mountain Energy Partnership. The original document contains color images.</abstract><oa>free_for_read</oa></addata></record> |
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subjects | Air Condition, Heating, Lighting & Ventilating AIR CONDITIONING EQUIPMENT DEHUMIDIFIERS DEMONSTRATIONS DESICCANTS EFFICIENCY ENERGY CONSUMPTION HUMIDITY CONTROL LDAC(LIQUID DESICCANT AIR CONDITIONER) LESSONS LEARNED PROTOTYPES REFRIGERANTS SOLAR ENERGY TYNDALL AIR FORCE BASE (FLORIDA) |
title | Solar-Powered, Liquid-Desiccant Air Conditioner for Low-Electricity Humidity Control |
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