Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Using the Potential of Waste Heat

09.12.2013
Siemens researchers analyze how different components of the future energy system can be combined in an optimized way.

In its latest issue the research magazine "Pictures of the Future" reports about the chances of this multi modal energy system. Scientists of Siemens' global research Corporate Techlology want to combine diverse energy sources, such as oil, gas, wind, solar, biomass, and waste heat in a way that ensures they produce electricity, heat, cooling, and potable water in the most efficient and environmentally friendly manner possible.



In most cases, only the individual aspects of such systems were examined until now - for example, approaches for feeding in energy from renewable sources. Now the researcher work with grids that consist of many components and study their interaction and the effect they have on overall stability.

One aspect the researchers are particularly interested is the waste heat from machines and other industrial equipment. Today, waste heat in the low-temperature range in particular is rarely used in an economically viable manner. However, this heat contains valuable energy that can be used to recycle waste water into drinking water, for example. With this in mind, Siemens researchers in Erlangen have developed a demonstration plant which uses waste heat within the temperature range of 70 to 120 degrees Celsius to vaporize wastewater. The resulting steam is channeled into a condenser, where it precipitates in a process that produces pure water and some concentrated wastewater.

In the prototype flows wastewater in from the top through insulated pipes. It then passes through several heat exchangers, where waste heat is used to raise the water's temperature. After that, the wastewater trickles through an evaporator and evaporates. A fan generates an air current that carries the vaporized water upward. The vapor condenses again on the right side, where the condenser is located. The separation is done. To use a minimal amount of electrical energy to transport as much water vapor as possible the temperature distribution and the air volume has to be regulated precisely. The next step could be a pilot facility that would purify 25 cubic meters of water per hour. That would be sufficient to treat the wastewater from bottling processes in the beverage industry. However, the technology can also be used to purify the wastewater generated by brewery processes and oil drilling operations.

The researchers have also built a heat pump that can raise temperatures to a maximum of 140 degrees Celsius - as opposed to the previous limit of 90 degrees. They use a special process fluid for the heat cycle. The new heat pump makes it possible to boost the temperature of industrial waste heat or heat from geothermal sources from between 70 and 90 to 130 degrees Celsius - the norm in district heating systems. The heat could be used to warm buildings.

Dr. Norbert Aschenbrenner | Siemens InnovationNews
Further information:
http://www.siemens.com/innovationnews

Further reports about: Heat Blanket energy source waste heat waste management

More articles from Ecology, The Environment and Conservation:

nachricht Scientists produce a new roadmap for guiding development & conservation in the Amazon
09.12.2016 | Wildlife Conservation Society

nachricht Successful calculation of human and natural influence on cloud formation
04.11.2016 | Goethe-Universität Frankfurt am Main

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

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

Im Focus: Electron highway inside crystal

Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.

Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...

Im Focus: Significantly more productivity in USP lasers

In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.

Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...

Im Focus: Shape matters when light meets atom

Mapping the interaction of a single atom with a single photon may inform design of quantum devices

Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...

Im Focus: Novel silicon etching technique crafts 3-D gradient refractive index micro-optics

A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.

Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...

Im Focus: Quantum Particles Form Droplets

In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.

“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

ICTM Conference 2017: Production technology for turbomachine manufacturing of the future

16.11.2016 | Event News

Innovation Day Laser Technology – Laser Additive Manufacturing

01.11.2016 | Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

 
Latest News

Researchers identify potentially druggable mutant p53 proteins that promote cancer growth

09.12.2016 | Life Sciences

Scientists produce a new roadmap for guiding development & conservation in the Amazon

09.12.2016 | Ecology, The Environment and Conservation

Satellites, airport visibility readings shed light on troops' exposure to air pollution

09.12.2016 | Health and Medicine

VideoLinks
B2B-VideoLinks
More VideoLinks >>>