Featured Research

from universities, journals, and other organizations

Desalination Technology Increases Naval Capabilities

Date:
September 25, 2009
Source:
Office of Naval Research
Summary:
The next generation of technology to turn saltwater into a fresh resource is on tap for the Navy. The Office of Naval Research is sponsoring the development of an innovative solution for generating potable water at twice the efficiency of current production for forces afloat, Marine Corps expeditionary forces and humanitarian missions ashore.

The next generation of technology to turn saltwater into a fresh resource is on tap for the Navy. The Office of Naval Research (ONR) is sponsoring the development of an innovative solution for generating potable water at twice the efficiency of current production for forces afloat, Marine Corps expeditionary forces and humanitarian missions ashore.

"Saving energy and producing clean water is a tactical issue for the Navy," said Dr. J. Paul Armistead, an ONR program officer with interests in water purification. "We plan to build prototype desalination units that will use 65 percent less energy and be 40 percent smaller by weight and by volume relative to current Navy reverse osmosis systems. They should require roughly 75 percent less maintenance."

Delivering drinkable water for ships at sea and Marines ashore for less cost and less energy became an ONR priority in 2004 under the Expeditionary Unit Water Purification Program, or EUWP.

Before the advent of modern desalinization plants, mariners relied on the fresh water they collected from rain and stowed while at sea. Today, Sailors and Marines benefit from high-tech, Reverse Osmosis (RO) desalinization plants aboard most U.S. Navy ships.

It takes energy to make water, and that energy comes from burning fuel to spin turbine generators that produce electricity necessary for ship systems, including RO plants. A more efficient desalinization plant translates into a more efficient ship, which uses less fuel, extends combat capability and reduces its carbon footprint.

Since its inception, the EUWP program has produced advances in desalinization capability. The first generation EUWP technology demonstrator was designed as a deployable high water production unit more easily transported by the military and used for a variety of missions.

In fact, the EUWP Gen 1 demonstrator has been used in a number of humanitarian missions. In 2005, it was deployed in support of the Navy´s response to Hurricane Katrina where it delivered safe drinking water to Gulf Coast residents being treated at a hospital in Biloxi, Miss. In this case, the EUWP Gen 1 was trucked in and set up on the shores of the Gulf of Mexico, approximately four blocks from the hospital. The Gen 1 unit desalted and purified about 100,000 gallons of water per day from the turbid Gulf of Mexico, replacing the daily caravan of 18 tankers needed to keep the hospital running.

The second generation EUWP Gen II technology demonstrator, built with shipboard constraints imposed on the design, is a larger, more stationary demonstration unit, and has potential for use by isolated communities. It has been tested successfully at the Seawater Desalination Test Facility at the Naval Facilities Engineering Service Center in Port Hueneme, Calif.

Armistead anticipates increased capabilities from the newer demonstration unit. "From current Navy desalination systems we only get 20 percent product water," he said. "That means for 1,000 gallons of feed water, we would get only 200 gallons product water. These new systems will likely double that."

Michelle Chapman, a physical scientist with the U.S. Bureau of Reclamation, is a member of the ONR team managing the research program. She highlighted the program´s success by noting its benefits to the public at large. "Several of the projects we have funded have turned into patents for commercially available products and processes that are available for use in water desalination systems for communities where freshwater sources are not available," Chapman said.

Based on the successes in the EUWP program, the Advanced Shipboard Desalination, Future Naval Capability Program will begin in 2010. Navy Surface Warfare Center Carderock Division, Ship Systems Engineering Station (NSWCCD-SSES), is a partner in this effort. According to Dave Nordham, a NSWCCD-SSES mechanical engineer, "Any sort of technology advancements we find for ships are directly applicable ashore and can be utilized by ever-increasing drought ridden areas."

Key partners in the EUWP program include NSWCCD-Philadelphia, U.S. Army Tank Automotive Research Development and Engineering Command, U.S. Bureau of Reclamation and the Naval Facilities Engineering Service Center´s Seawater Desalination Test Facility at Port Hueneme, Calif.


Story Source:

The above story is based on materials provided by Office of Naval Research. Note: Materials may be edited for content and length.


Cite This Page:

Office of Naval Research. "Desalination Technology Increases Naval Capabilities." ScienceDaily. ScienceDaily, 25 September 2009. <www.sciencedaily.com/releases/2009/09/090925115459.htm>.
Office of Naval Research. (2009, September 25). Desalination Technology Increases Naval Capabilities. ScienceDaily. Retrieved October 23, 2014 from www.sciencedaily.com/releases/2009/09/090925115459.htm
Office of Naval Research. "Desalination Technology Increases Naval Capabilities." ScienceDaily. www.sciencedaily.com/releases/2009/09/090925115459.htm (accessed October 23, 2014).

Share This



More Earth & Climate News

Thursday, October 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

San Diego Zoo's White Rhinos Provide Hope for the Critically Endangered Species

Reuters - Light News Video Online (Oct. 22, 2014) — The pair of rare white northern rhinos bring hope for their species as only six remain in the world. Elly Park reports. Video provided by Reuters
Powered by NewsLook.com
Trick-or-Treating Banned Because of Polar Bears

Trick-or-Treating Banned Because of Polar Bears

Buzz60 (Oct. 21, 2014) — Mother Nature is pulling a trick on the kids of Arviat, Canada. As Mara Montalbano (@maramontalbano) tells us, the effects of global warming caused the town to ban trick-or-treating this Halloween. Video provided by Buzz60
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) — He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
How Detroit's Money Woes Led To U.N.-Condemned Water Cutoffs

How Detroit's Money Woes Led To U.N.-Condemned Water Cutoffs

Newsy (Oct. 20, 2014) — The United Nations says water is a human right, but should it be free? Detroit has cut off water to residents who can't pay, and the U.N. isn't happy. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:

Strange & Offbeat Stories

 

Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins