Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Solar Reactor Heads to Europe for Testing

27.06.2008
A research team from Valparaiso University’s College of Engineering will take a solar reactor they’ve designed and built from scratch to Switzerland next month to begin a series of tests at one of the world’ premier solar energy research institutes. Valparaiso is a member of the Council on Undergraduate Research.

Dr. Robert Palumbo, Jenny professor of emerging technology and one of the world’s leading solar energy researchers, and three of his undergraduate students will spend four and a half weeks at the Paul Scherrer Institute as Valparaiso’s solar energy research program enters its third year.

The program was launched in August 2006 with a $300,000 grant from the National Science Foundation to study the industrial feasibility of high temperature solar electrolysis – a process that has the potential to make large-scale storage and transportation of the sun’s energy practical.

“We started with nothing other than theory to design our solar reactor, so it’s exciting to reach the point where we can begin testing,” said Dr. Palumbo, who formerly served as head of the Paul Scherrer Institute’s High Temperature Solar Technology Laboratory. “Our emphasis this summer will be validating that the reactor can perform under our desired operating conditions.”

During tests, sunlight will be collected, focused and directed into Valparaiso’s reactor – a cylindrical device about three-feet long where the electrolytic process will take place. Inside the reactor, a crucible containing the chemicals involved in the electrolytic process will be heated to between 1,700 to 3,000 degrees Fahrenheit, at which point electrolysis will begin and separate zinc oxide into oxygen and metallic zinc.

The team plans to spend its first few days in Switzerland testing the mechanical behavior of the reactor, finding out how it behaves when exposed to sunlight that’s been concentrated thousands of times beyond what is experienced on a sunny day. Once Dr. Palumbo and his students determine their reactor can operate successfully – that its various components hold up under the extreme temperatures and that the inert gases contained within the reactor don’t leak out – they will begin studying the electrolysis process itself.

During that phase of testing, the team will conduct the electrolysis at different temperatures, different voltages and explore a variety of options for how electricity is supplied to the reactor.

Valparaiso’s research team is producing zinc in its experiments because the commonly-used metal could be used in fuel cells for the production of electricity. The process thus could be a means by which solar energy is stored as chemical energy in the form of zinc, allowing it to be transported and used at any time.

The higher the temperature during electrolysis, the larger the amount of solar energy that can be substituted for the electricity needed to convert zinc oxide into metallic zinc. Over the past two years, students have spent a considerable amount of time investigating and addressing the problem of electrical resistance in the electrolysis cell, since less resistance means that less electricity needs to be added to the solar electrolysis process.

Working with Dr. Palumbo are senior mechanical engineering and German majors Katie Krueger of Maumee, Ohio; Peter Krenzke of Plainfield, Ind.; and Nate Leonard of Dexter, Mich.

Leonard is looking forward to observing the performance of the solar reactor he and other engineering students have worked together to build.

“There are a lot of challenges to overcome in high temperature solar electrolysis,” Leonard said. “We’ll learn a lot from our experiments this summer, and it’s rewarding to know our research could help lead to industrial use down the road.”

This summer’s research at the Paul Scherrer Institute will set the stage for further testing of the solar reactor in the 2009 and 2010.

“It will take more than one month to complete our testing of the electrolysis process and determine whether we can indeed replace electricity with solar energy on an industrial scale,” Dr. Palumbo. “This summer is the initial step in testing that will continue over the next two summers.”

After the team returns to Valparaiso in August, Dr. Palumbo and his students will take the data they’ve collected and begin making improvements to the reactor.

“I expect our testing will show us a number of improvements we can make, so that next summer we’ll have a reactor that we’re really happy with,” he said. “Then, we can concentrate more on the science of solar electrolysis.”

Dustin J. Wunderlich '01 | newswise
Further information:
http://www.cur.org/

More articles from Power and Electrical Engineering:

nachricht Waste from paper and pulp industry supplies raw material for development of new redox flow batteries
12.10.2017 | Johannes Gutenberg-Universität Mainz

nachricht Low-cost battery from waste graphite
11.10.2017 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Breaking: the first light from two neutron stars merging

Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.

Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....

Im Focus: Smart sensors for efficient processes

Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).

When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...

Im Focus: Cold molecules on collision course

Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.

How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...

Im Focus: Shrinking the proton again!

Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.

It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...

Im Focus: New nanomaterial can extract hydrogen fuel from seawater

Hybrid material converts more sunlight and can weather seawater's harsh conditions

It's possible to produce hydrogen to power fuel cells by extracting the gas from seawater, but the electricity required to do it makes the process costly. UCF...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ASEAN Member States discuss the future role of renewable energy

17.10.2017 | Event News

World Health Summit 2017: International experts set the course for the future of Global Health

10.10.2017 | Event News

Climate Engineering Conference 2017 Opens in Berlin

10.10.2017 | Event News

 
Latest News

Study suggests oysters offer hot spot for reducing nutrient pollution

17.10.2017 | Life Sciences

Breaking: the first light from two neutron stars merging

17.10.2017 | Physics and Astronomy

World first for reading digitally encoded synthetic molecules

17.10.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>