7/21/2019 Poly Generation

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Retrofitting of an existing coal-fired power plantwith solar heatWork Package #76

Target:

 To make a feasibility study of the possibility to reduce fossil fuel consumption in existing

coal fired, condensing power plants by introducing solar power.

 

Output:

report on different technical solutions, performance, reduction in coal consumption

!and "$ emissions%, cost of solar installations and electric production cost of a power

plant which is partly heated with solar radiation.

 

Input:

&chematic layout of different small'medium si(e coal fired power plants

)ayout of and data for modern through based solar steam plants

"ost data for solar components from &* !&olar d+isory *odel from -)%

 Activities:

/. Thermodynamic model of a typical coal fired steam plant with boiler, preheaters

and condenser at a site with good solar potential !xcel or T-&0&%

$. 1n+estigation of possible positions for introduction of solar heat in the steam cycle

2. *odification of the thermodynamic model to include the solar heat exchanger

4. Performance analysis including in+estigation of changes to components in the cycle 

5. 3esign of the solar field !only in general terms, si(e, number of mirrors44.%

6. 1n+estment cost estimate

. perational beha+ior !with'without sun4.%

!. stimate the reduction in coal consumption and "$ emissions

". stimate the production price of electricity, considering the in+estment costs and

the coal consumption#$. stimate the market for this type of retrofitting