http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 13.69Change: -0.05
R/$ = 12.32Change: -0.01
Au 1168.78 $/ozChange: -0.02
Pt 1083.00 $/ozChange: 1.00
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science and Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Tenders Suppliers Directory Research Jobs Announcements Letters Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
Oct 12, 2001

Power, heat and cooling from manure

Back
Gas|Industrial|PROJECT|Renewable Energy|Renewable-Energy|Resources|Safety|System|Waste|Energy|Manufacturing|Product|Service|Environmental|Power|Waste
Gas|Industrial|PROJECT|Renewable Energy|Renewable-Energy|Resources|Safety|System|Waste|Energy|Manufacturing|Service|Environmental|Power|Waste
gas|industrial|project|renewable-energy|renewable-energy-company|resources|safety|system|waste-company|energy|manufacturing|product|service|environmental|power|waste
More Insight
© Reuse this A lternative energy sources currently enjoy good market prospects in Germany: from 1998 to 2000 alone, the number of biogas plants doubled to 1 200. A further boost to this sector is provided by the German government's commitment to reimburse private operators up to E0,1 per kilowatt-hour, as part of its policy on renewable energy. Yet many biogas facilities still do not operate optimally, because cogenerating power stations waste too much energy as heat in the process of electricity generation. "Our experience has been that recovery of this waste heat in most biogas plants is, at best, inadequate," says Stephan Kabasci of the Fraunhofer Institute for Environmental, Safety and Energy Technology, Umsicht, in Germany. Working on a project sponsored by the Land of North Rhine-Westphalia and the European Union, Umsicht researchers tackled this problem by developing an innovative concept, which entails harnessing the waste heat generated by a cogenerating power station for room heating and for the operation of a chiller unit. The system, designed for a farmstead, went into service in June 2001. In addition to using biomass produced at the farm, such as manure, plant clippings, and corn silage, the system also 'digests' vegetable waste from an industrial food-processing plant. The resulting biogas is in turn used as fuel in a cogenerating power station that produces enough electricity to meet the needs of 500 homes. This form of energy is fed into the public power grid by the system's operators. Generating electricity also produces heat. "We use this by-product to heat the stable, the farmhouse with offices and a manufacturing facility," reports Kabasci. The heat is further utilised to operate a thermally-driven chiller unit, which works on the same principle as a gas-operated refrigerator in a recreation van, by using waste heat as the energy supply for the cooling cycle. This allows the stables as well as living rooms and offices to be cooled in summer. "Thanks to this ingenious concept, about three-fourths of the available heat energy is utilised," explains the engineer from Umsicht. Even the effluent from the anaerobic digestion process is a valuable liquid fertiliser for farming. This method of integrated energy supply thus offers economical and ecological advantages: it saves on heating costs, uses waste heat to provide cheap refrigeration, supplies electricity, reduces greenhouse gas emissions, reduces the leaching of nitrates into groundwater, and closes the cycle of organic waste to fertilisers.

Smrcka is an information resources consultant and translator
Edited by: Karel Smrcka
© Reuse this Comment Guidelines (150 word limit)
 
 
 
 
 
 
 
 
Other Energy News
South Africa’s second-largest oil refinery, Engen Refinery (Enref), is set to undergo a three-day planned maintenance outage from July 9 as part of an ongoing maintenance programme to ensure that the facility, which delivers a significant portion of South Africa’s...
Pan-African multinational energy corporation Oando has appointed Dr Tanimu Yakubu Muhammad to its board, effective immediately, following the resignation of nonexecutive director Nana Appiah-Korang. Appiah-Korang tendered her resignation owing to increasing demands...
Nigeria's Transcorp plans to spend $1.575-billion from 2016 to 2018 to raise its power generation capacity to 2 500 megawatts (MW) from 610 MW now, the company said on Thursday. Transcorp, which also has interest in hotels, oil and gas, said it expected the...
Article contains comments
More
 
 
Latest News
An end to wage negotiations within the local government sector could be in sight as a conciliator’s proposal, setting out a number of settlement suggestions to resolve the deadlock, was expected on Monday. The Independent Municipal and Allied Trade Union (Imatu)...
Development financier Eastern Cape Development Corporation (ECDC) executive Noludwe Ncokazi on Friday said the organisation had the “huge responsibility of ensuring business continuity”, following the resignation of ECDC subsidiary Automotive Industry Development...
South Africa’s second-largest oil refinery, Engen Refinery (Enref), is set to undergo a three-day planned maintenance outage from July 9 as part of an ongoing maintenance programme to ensure that the facility, which delivers a significant portion of South Africa’s...
More
 
 
Recent Research Reports
Real Economy Year Book 2015 (PDF Report)
There are very few beacons of hope on South Africa’s economic horizon. Economic growth is weak, unemployment is rising, electricity supply is insufficient to meet demand and/or spur growth, with poor prospects for many of the commodities mined and exported. However,...
Real Economy Insight: Automotive 2015 (PDF Report)
Creamer Media’s Real Economy Year Book comprises separate reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, gold, iron-ore and platinum sectors.
Real Economy Insight: Water 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Construction 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Electricity 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
Real Economy Insight: Road and Rail 2015 (PDF Report)
Creamer Media’s Real Economy Year Book has been divided into individual reports under the banner Real Economy Insight and investigates key developments in the automotive, construction, electricity, road and rail, steel, water, coal, gold, iron-ore and platinum sectors.
 
 
 
 
 
This Week's Magazine
NHLANHLA NENE The main constraints to economic growth are domestic
Finance Minister Nhlanhla Nene earlier this month stated that, while South Africa’s 2015 economic growth target of 2% was achievable, it was not enough to deliver the tax revenue needed to combat the country’s challenges.
The World Steel Association has published the 2015 edition of the World Steel in Figures report, which shows an increase in steel production as well as provides an overview of steel industry activities from crude steel production to apparent steel use.
The 25-year master plan for Gauteng’s Aerotropolis project will go through a process of approval and adoption during June and July, says Aerotroplis project manager Jack van der Merwe. “We are also in the process of putting together a special purpose vehicle (SPV) to...
SOLAR PANELS The existing buildings in the Coega Industrial Development Zone lent themselves well to rooftop solar panel installations
The Coega Development Corporation (CDC) plans to fit 15 of its buildings, totalling 127 000 m2 of roof space, in the Coega Industrial Development Zone (IDZ), in the Eastern Cape, with solar panels.
The Supreme Court of Appeal’s (SCA’s) November 2014 judgment, ordering steel producer ArcelorMittal South Africa (AMSA) to hand over the 2003 Environmental Master Plan for its Vanderbijlpark steel plant to environmental pressure groups, confirmed the right of civil...
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks
Subscribe Now for $96 Close
Subscribe Now for $96