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Content archived on 2022-12-27

USE OF DOMESTIC WASTE AND POWDERED COAL IN URBAN HEATING

Objective

To build a demonstration power plant to burn domestic waste as the main fuel and powdered coal as a support fuel. The use of powdered coal as support fuel is the innovative part of this project.
The power plant will operate continuously all the year round. Its mode of operation will depend on the quantity of waste supplied and heating needs. The payback period for the innovative part is estimated at 1.39 year.
Civil engineering works have been completed and all equipment has been installed. The furnace was first ignited on 20/07/87 and production of energy commenced in September 1987.
Adjustment has so far only been carried out with cityrefuse alone.
Because of weather conditions and the time of year it has not yet been necessary to add powdered coal to the waste.
The power plant consists of two identical boiler units of mixed combustion of domestic wastes and powdered coal. The two boilers produce super-heated water at 25 bars at temperatures between 140 deg.C and 200 deg.C. The heating capacities of the unit amount to 13.3 MW when burning domestic wastes and 18.3 MW when burning both domestic wastes and powdered coal.
The unit also includes a slag and an ash extractor.
The cost of the innovative part of the project is estimated at 23 million. It is estimated that 110,000 tonnes of domestic waste will be incinerated generating 99,000 MWh/year. The average needs of the urban grid are 154,000 MWh/year leaving a deficit of 55,000 MWh/year to be supplied by powdered coal.
The payback period of a waste incinerator is on average 5 to 6 years. With the addition of a powdered coal unit the payback period is reduced to 4 years. The actual payback of the innovative part is 1.39 year. Such a unit can be of interest for urban communities of 200,000 ormore.

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Topic(s)

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Call for proposal

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Funding Scheme

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DEM - Demonstration contracts

Coordinator

CONSTRUC. NAVALES INDUST. MEDITERRANEE (CNIM)
EU contribution
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Address
RUE BASSANO 35
75008 Paris
France

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Total cost

The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.

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