Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

New system uses mine waste to generate clean power

08.08.2002


New technology for generating power from coal mining waste was launched by the Federal Minister for Industry, Tourism and Resources, the Hon. Ian Macfarlane, at CSIRO in Brisbane today.





The revolutionary technology has the potential to significantly reduce greenhouse gases and bring big savings to mining companies operating coal mines.

The CSIRO-Liquatech hybrid coal and gas turbine system unveiled at the Queensland Centre for Advanced Technologies will generate electricity from waste coal and gas that would otherwise have polluted the atmosphere.


The method harnesses existing technologies in a 1.2 megawatt hybrid coal and gas

turbine system that burns waste coal and methane to generate electricity which can either be used to power the mine’s operations or be returned to the grid for general consumption.

CSIRO and its partners have developed the system over three years as part of a CSIRO research project targeting a 75 per cent reduction in greenhouse gas emissions from coal mines over the next 20 years.

Funded by CSIRO, the Australian Coal Association Research Program (ACARP), the NSW Sustainable Energy Development Authority (SEDA) and the Brisbane-based Liquatech Turbine Company, the turbine-furnace technology will be commercially demonstrated in NSW next year.

CSIRO project leader Patrick Glynn says the technology works by burning methane and coal in a kiln to produce hot air which is then passed through a specially adapted heat exchange unit to drive a gas turbine which generates the electricity.

"Using a kiln coupled with an externally-fired gas turbine allows for a simple but highly efficient system," Mr Glynn says.

"It is significantly cheaper and more efficient than steam-powered systems because it does not require water treatment systems, condensers, cooling towers or high-pressure fluid handling systems."

It is estimated that emissions from underground coal mines contribute around 5.7 per cent of the total 6.7 per cent of Australia’s total annual greenhouse emissions attributed to coal mining operations.

"The scale of the problem can be gauged by the fact that each of Australia’s underground coal mines produces around 800,000 tonnes of waste coal every year," Mr Glynn says.

"As waste coal is a significant cost for coal mines - accounting for up to eight per cent of their budgets - by recycling the waste and returning it to the generating system as power the new technology will potentially save the Australian industry alone millions of dollars annually.

"The new turbine has the potential not only to reduce fugitive emissions from coal mines but also to significantly reduce existing greenhouse effects by displacing hundreds of megawatts of electricity already in the power grid with electricity fuelled by burnt methane which has seven times less greenhouse potential," he says.

More information:

Robert Hoge, Queensland Centre for Advanced Technologies, 0438 120 401
Adrienne Jones, CSIRO Exploration and Mining, 03 9545 8200, 0414 793 450
Keith Bashford, CSIRO Exploration and Mining, 02 6276 6510, 0438 173 654


Rosie Schmedding | EurekAlert!

More articles from Power and Electrical Engineering:

nachricht ISFH-CalTeC is “designated test centre” for the confirmation of solar cell world records
16.01.2018 | Institut für Solarenergieforschung GmbH

nachricht A water-based, rechargeable battery
09.01.2018 | 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: Scientists decipher key principle behind reaction of metalloenzymes

So-called pre-distorted states accelerate photochemical reactions too

What enables electrons to be transferred swiftly, for example during photosynthesis? An interdisciplinary team of researchers has worked out the details of how...

Im Focus: The first precise measurement of a single molecule's effective charge

For the first time, scientists have precisely measured the effective electrical charge of a single molecule in solution. This fundamental insight of an SNSF Professor could also pave the way for future medical diagnostics.

Electrical charge is one of the key properties that allows molecules to interact. Life itself depends on this phenomenon: many biological processes involve...

Im Focus: Paradigm shift in Paris: Encouraging an holistic view of laser machining

At the JEC World Composite Show in Paris in March 2018, the Fraunhofer Institute for Laser Technology ILT will be focusing on the latest trends and innovations in laser machining of composites. Among other things, researchers at the booth shared with the Aachen Center for Integrative Lightweight Production (AZL) will demonstrate how lasers can be used for joining, structuring, cutting and drilling composite materials.

No other industry has attracted as much public attention to composite materials as the automotive industry, which along with the aerospace industry is a driver...

Im Focus: Room-temperature multiferroic thin films and their properties

Scientists at Tokyo Institute of Technology (Tokyo Tech) and Tohoku University have developed high-quality GFO epitaxial films and systematically investigated their ferroelectric and ferromagnetic properties. They also demonstrated the room-temperature magnetocapacitance effects of these GFO thin films.

Multiferroic materials show magnetically driven ferroelectricity. They are attracting increasing attention because of their fascinating properties such as...

Im Focus: A thermometer for the oceans

Measurement of noble gases in Antarctic ice cores

The oceans are the largest global heat reservoir. As a result of man-made global warming, the temperature in the global climate system increases; around 90% of...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

10th International Symposium: “Advanced Battery Power – Kraftwerk Batterie” Münster, 10-11 April 2018

08.01.2018 | Event News

See, understand and experience the work of the future

11.12.2017 | Event News

Innovative strategies to tackle parasitic worms

08.12.2017 | Event News

 
Latest News

White graphene makes ceramics multifunctional

16.01.2018 | Materials Sciences

Breaking bad metals with neutrons

16.01.2018 | Materials Sciences

ISFH-CalTeC is “designated test centre” for the confirmation of solar cell world records

16.01.2018 | Power and Electrical Engineering

VideoLinks
B2B-VideoLinks
More VideoLinks >>>