Navigation Links
Saving energy and the environment with Flywheels
Date:4/6/2009

ECE researcher, Dr. Mark Flynn's high-speed flywheel motor controller is reducing fuel consumption and harmful emissions at ports throughout the world. Flynn's design has been incorporated into energy storage systems used in Rubber Tired Gantry (RTG) cranes and sold by VYCON Inc.

The 8,000 RTG cranes operating at sea ports around the world contribute significantly to port emissions and, as such, have become a testing ground for new hybrid technologies. The mobile cranes are powered by a diesel generator set (engine and alternator) and typically move a shipping container every three minutes. Most of the power is expended in the lift, but since containers can weigh up to 50 metric tons, the descent must be carefully controlled. When a given container is lowered with a strictly diesel-based crane, its potential energy is not recovered but rather is dissipated as wasted heat.

Flynn's design captures the braking energy and uses it for the next hoist. More importantly, the addition of a flywheel energy storage system lowers the peak power requirements which saves energy during idle periods. Field tests in China showed that when operators used a genset appropriate for the reduced power requirements and added a flywheel energy storage system, fuel consumption went down by 38%, with significant reductions in NOx and PM emissions.

Flynn's flywheel motor controller is also replacing the industrial batteries used by mission-critical data centers and hospitals. "Industrial batteries are less expensive initially than a flywheel, but when you factor in maintenance and having to pay for more charge than you need to avoid frequent battery replacement a flywheel-based solution can be considerable less expensive," says Flynn. "A VYCON flywheel will last 20 years and eliminates the problem of what to do with 200 large-scale toxic lead-acid batteries."

Hospitals and data back-up centers cannot afford power outages. Lives and disaster recovery for businesses depend on an uninterrupted flow of energy. A typical power outage is very short and most hospitals and data centers have back-up diesel generators, meaning the extra energy storage of an industrial battery is never fully utilized. Most outages are well within a flywheel's capability, but when the outage persists, the flywheel absorbs damaging power abnormalities then gracefully transfers to the generatormeeting emergency power regulations that stipulate gensets must be able to assume the load within 10 seconds. Flywheels also have a higher tolerance for rapid cycling.

"I am very pleased with the fuel and emissions savings results we are seeing and with additional improvements currently under research that aim to improve the savings further," says Flynn. "Future work will investigate the feasibility of using flywheels in subway rail stations to accelerate one train with the braking energy recovered from another. Doing so will not only save energy but can be used to defer or eliminate the costs of adding utility substations as rail service grows."


'/>"/>

Contact: Stephanie Peco
speco@mail.utexas.edu
512-232-4298
University of Texas at Austin, Electrical & Computer Engineering
Source:Eurekalert

Related biology news :

1. Promising 3-year data: Saving limbs with drug-eluting stents
2. Saving wheat crops worldwide
3. Study finds life-saving trend among seagulls
4. Capillary mats labor-saving, economical alternative to hand watering
5. Saving Sumatra: Indonesia reaches historic agreement
6. Energy-saving bacteria resist antibiotics
7. A recipe for saving the worlds oceans from an extinction crisis
8. UCSB chemistry professor receives top military award for life-saving gauze
9. Saving our bees
10. Researchers find key to saving the worlds lakes
11. Mangroves key to saving lives
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/3/2016)... , March 3, 2016  FlexTech, a SEMI ... categories of Innovation, Research & Development, Leadership in Education, ... This is the 9 th year of the ... of companies and individuals from past years . ... on a pre-described set of criteria, by a panel ...
(Date:3/2/2016)... 2016 http://www.researchandmarkets.com/research/wzwqtz/global_biometrics ... the  "Global Biometrics Market in Hospitality Sector ... http://photos.prnewswire.com/prnh/20130307/600769) , , Global biometrics market in ... CAGR of around 27%   --> ... the addition of the  "Global Biometrics Market ...
(Date:3/1/2016)... FRANCISCO , March 1, 2016  (RSAC Booth ... year, but a whopping $118 billion is lost to ... to overzealous and inaccurate fraud detection. At the RSA ... in the way companies handle authentication by devaluing the ... and behavioral analytics. --> ...
Breaking Biology News(10 mins):
(Date:4/27/2016)... New York, NY (PRWEB) , ... April 27, ... ... without realizing it. Touch screen mobile devices with fingerprint recognition for secure ... image libraries are only a few ways consumers are interacting with biometrics technology ...
(Date:4/27/2016)... RESEARCH TRIANGLE PARK, N.C. , April ... UTHR ) announced today that Martine Rothblatt , ... will provide an overview and update on the company,s ... Health Care Conference. The presentation will take ... Eastern Time, and can be accessed via a live ...
(Date:4/27/2016)... ... April 27, 2016 , ... ... has joined the company as an Expert Consultant. Mr. Clark was formerly ... and managing the development of small molecule monographs based on analytical methods. ...
(Date:4/27/2016)... ... April 27, 2016 , ... ... PET (Positron Emission Tomography) and MRI (Magnetic Resonance Imaging) in existing third-party MRI ... testing novel treatments in small animal subjects. Simultaneous PET/MRI imaging offers a solution ...
Breaking Biology Technology: