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 How does the loss of species alter ecosystems?
18.05.2017 | Deutsches Zentrum für integrative Biodiversitätsforschung (iDiv) Halle-Jena-Leipzig

nachricht Excess diesel emissions bring global health & environmental impacts
16.05.2017 | International Institute for Applied Systems Analysis (IIASA)

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: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

How herpesviruses win the footrace against the immune system

26.05.2017 | Life Sciences

Water forms 'spine of hydration' around DNA, group finds

26.05.2017 | Life Sciences

First Juno science results supported by University of Leicester's Jupiter 'forecast'

26.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>